巴西专利BR112012025174B1 air suction device and air aspirator set

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专利摘要:
The embodiments of the invention provide an air suction device to release the air trapped in a pipe containing a solution that will be delivered to a nozzle body. The air suction device may include an air port in fluid communication with the air and the solution, an outlet port, and a passage in fluid communication with the air port and the air outlet. The air suction device may also include a main body and a female pipe fitting forming an end cap for one end of the pipe.
公开号:BR112012025174B1
申请号:R112012025174-0
申请日:2011-04-04
公开日:2021-02-17
发明作者:John Lang；Mark Mohr；Colin Jaedike
申请人:Sta-Rite Industries, Llc；
IPC主号:

专利说明:

[0001] [001] This order claims priority for US Provisional Order. No. 61 / 320,464 filed on April 2, 2010, the entire description of which is considered part of the attached application and is incorporated herein by reference. Fundamentals of the Invention
[0002] [002] The purpose of an agricultural crop spraying machine is to effectively distribute an agrochemical sprayer over the largest harvest area in the shortest amount of time possible. The conventional model for such a machine is a base unit with wheels, whether pulled or self-propelled, which carries a tank, pump and controls. The conventional model provides agrochemical to the distribution bars that extend from either side of the base unit with wheels, perpendicular to the direction of travel.
[0003] [003] Nozzle bodies are placed at regular intervals along a spray boom. This is called a wet bar configuration. The main function of the nozzle bodies is to provide a sealed connection between the work of the pipe supplying the boom and the spray tips that distribute the agrochemical. The nozzle bodies also position the spray tips at the correct angle to the direction of travel. Each nozzle body has a drum to which the spray tips are attached to regulate the spray pattern and flow rate.
[0004] [004] The nozzle body is designed to drain solution from the pipe or metal tube under the pipe. This orientation generates a situation where the air, which is normally present in varying concentrations, is pumped into the pipe of the bar. The air is less dense than the solution being applied and is then trapped at the top of the bar tubing above the solution. Air is a compressible gas that accumulates at the top of the bar and incorporates pressure. When the sprayer is turned off at the end of a field pass or when the operator finishes spraying, the pressure in the boom tubing is even greater than the activation pressure on the diaphragm check valves (for example, 50 kPa (0, 5 bar)) due to the air acting as an accumulator. This creates the problem that nozzle sets continue to release the solution even after the sprayer valve is turned off. As the nozzle sets continue to release the solution, the air pressure in the boom tubing decreases as the air volume expands. The nozzles will continue to release the solution until the air pressure in the bar decreases to the point where the pressure in the bar equals the activation pressure of the diaphragm check valve. With the presence of air in the bar tubing, cutting times can be delayed by up to eight seconds, resulting in a significant amount of solution that is applied when and where it is not intended. Summary of the Invention
[0005] [005] Some embodiments of the invention provide an air suction device to release the air stored in a pipeline when releasing a solution to a nozzle body with a supply tap. The air suction device may include a main body that engages the pipe and may also include a female pipe fitting that can be coupled to the main body. The female pipe fitting can form an end cap for one end of the pipe. The female pipe fitting can engage with the supply tap. The device may include an air port in the female tubing fitting that is in fluid communication with the solution and the air, and may further include a passage through the female tubing fitting that is in fluid communication with the air port. The passage can deliver both the solution and air to the supply tap. The air suction device may also include an outlet port on the female pipe fitting which is in fluid communication with the passage and which engages with the supply cock.
[0006] [006] In another embodiment, the invention can provide an air cleaner assembly to release the air trapped in a pipe when delivering a solution to a nozzle body that includes a supply tap. The piping may include an opening. The assembly may include a main body that engages the tubing and may also include a female tubing fitting that engages the feed tap and a clamp. The female tubing fitting may include an air port that is in fluid communication with the solution and air, a passage that is in fluid communication with the air port so that it can deliver both the solution and the air to the air. supply tap, and an outlet port in fluid communication with the passage and which engages in the supply tap. The cuff may include a body part having an internal surface with a button. The button can engage the opening of the pipe in order to maintain an angular orientation between the main body and the pipe.
[0007] [007] The invention can also provide a removable clamp for attaching an adapter to a pipe releasing a solution, the adapter including a first opening, and the pipe including a second opening. The removable clamp may include a body part having a first clamp component and a second clamp component together creating an internal surface. The cuff may also include a first button located on the inner surface. The internal surface of the body part can engage with an external surface of the adapter so that the first button is received by the first opening and the second opening in order to maintain an angular relationship between the adapter and the piping.
[0008] [008] In another embodiment, the invention can provide a fluid delivery system. The fluid delivery system can include a bar releasing fluid from a fluid source, with the bar including a first section with a first opening and a second section with a second opening. The fluid delivery system can also include a "T" adapter coupled to the first section and the second section. The "T" adapter can receive fluid from the fluid source and release the fluid to the first and second sections section. The fluid delivery system can also include a first clamp and a second clamp. The first clamp may include a first insert that can be received by the first opening. The second clamp may include a second button that can be received by the second opening. The first clamp can couple the "T" adapter to the first section and the second clamp can couple the "T" adapter to the second section in order to maintain an angular relationship between the first section and the second section.
[0009] [009] These and other characteristics, aspects and advantages of the present invention will be better understood by considering the following detailed description, drawings and claims. Brief Description of Drawings
[0010] [010] FIG. 1 is a perspective view of a wet bar incorporating two air intake devices; FIG. 2 is a perspective view of one of the air suction devices and associated clamp assembly on the wet bar of FIG. 1; FIG. 3 is a perspective view showing an internal part of the air suction device assembly of FIG. two; FIG. 4 is a side elevational view of the air suction device assembly of FIG. two; FIG. 5 is a rear elevation view of the suction device assembly of FIG. two; FIG. 6 is a perspective view of the air suction device of FIG. two; FIG. 7A is a perspective view of another embodiment of an air intake device; FIG. 7B is a side elevational view of the air suction device of FIG. 7A; FIG. 7C is a cross-sectional view taken along line 7C-7C of FIG. 7B; FIG. 8A is a side elevation view showing an internal part of the air suction device of FIG. 7A mounted with a bar and nozzle body; FIG. 8B is a cross-sectional view taken along line 8B-8B of FIG. 8A; FIG. 9A is a perspective view of an alternative embodiment of the invention including an air suction device assembly on a dry bar; FIG. 9B is a side elevational view of the air suction device assembly on the dry bar of FIG. 9a; FIG. 9C is a cross-sectional view taken along line 9C-9C of FIG. 9B; FIG. 10A is a perspective view of an alternative embodiment of the invention including an air suction device assembly on a wet bar; FIG. 10B is a side elevational view of the air suction device and the wet bar of FIG. 10A; FIG. 10C is a cross-sectional view taken along line 10C-10C of FIG. 10B; FIG. 11A is a perspective view of a wet bar end cap; FIG. 11B is a side elevational view of the wet bar end cap of FIG. 11A; FIG. 11C is a cross-sectional view taken along line 11C-11C of FIG. 11B; FIG. 12A is an exploded perspective view of another embodiment of the air suction device and clamp assembly; FIG. 12B is a perspective view of the assembled air suction device and clamp assembly of FIG. 12A; FIG. 12C is a side elevation view showing an internal view of the air suction device of FIG. 12B; FIG. 12D is a cross-sectional view taken along line 12D-12D of FIG. 12C; FIG. 13A is a perspective view of an alternative embodiment of the air suction device and clamp assembly; FIG. 13B is a perspective view of a female pipe fitting of the air suction device of FIG. 13A; FIG. 13C is a side elevational view of the air cleaner and clamp assembly of FIG. 13A; FIG. 13D is a rear view of the air cleaner and clamp assembly of FIG. 13A; FIG. 13E is a cross-sectional view taken along line 13E-13E of FIG. 13C; FIG. 13F is a perspective view of an alternative female pipe fitting for the air suction device of FIG. 13A; FIG. 13G is a side elevational view of the air cleaner and clamp assembly of FIG. 13A with the female pipe fitting of FIG. 13F; FIG. 13H is a cross-sectional view taken along line 13H-13H of FIG. 13G; FIG. 14A is a perspective view of a wet bar incorporating two air suction and clamp devices and an integrated universal flange "T" adapter and clamp; FIG. 14B is a front elevation view of the wet bar of FIG. 14A; FIG. 15A is a perspective view of an integrated universal flange "T" adapter and clamp and clamp assembly; FIG. 15B is a side elevation view of the universal flange "T" adapter and integrated clamp and clamp assembly of FIG. 15A; FIG. 15C is a cross-sectional view taken along line 15C-15C of FIG. 15B; FIG. 16A is a perspective view of a wet bar that includes a male quick-connect adapter, a universal flange "T" adapter, and a universal flange adapter attached to the bar with removable clamps; FIG. 16B is an exploded perspective view of the universal flange adapter and associated clamp assembly of FIG. 16A; FIG. 16C is a front elevation view of the wet bar of FIG. 16A; FIG. 16D is a side elevational view of the wet bar of FIG. 16A; FIG. 16E is a cross-sectional view taken along line 16E-16E of FIG. 16D; FIG. 17A is a perspective view of a simulated adapter; FIG. 17B is a perspective view of a quick coupling adapter; FIG. 17C is a perspective view of a spout body end cap adapter; FIG. 17D is a perspective view of a hose spike adapter; FIG. 17E is a perspective view of a universal flange adapter; FIG. 17F is a perspective view of a universal flange "T"adapter; FIG. 17G is a perspective view of a 90 ° hose spike adapter; FIG. 18A is a perspective view of a universal wet-bar flange adapter with an internal clamp; FIG. 18B is a side elevational view of the universal wet bar flange adapter of FIG. 18A; FIG. 18C is a cross-sectional view taken along line 18C-18C of FIG. 18B; FIG. 19 is a graph showing the response time of the diaphragm check valve for a number of cycles for a wet boom pipe in an air-saturated condition where no air is introduced into the wet boom; FIG. 20 is a bar graph illustrating the cutting performance of test data for nozzle body diaphragm check valves for a wet bar that includes an air suction device incorporating the invention versus an air-saturated wet bar and a damp bar purged of air; FIG. 21 is a graph showing the diaphragm check valve for a standard boom configuration versus a boom configuration with an air suction device. Detailed Description of the Invention
[0011] [011] Before any modalities of the invention are explained in detail, it is understood that the invention is not limited in its application to the details of construction and the arrangement of components presented in the following description or illustrated in the following drawings. The invention is capable of other modalities and of being practiced or of being executed in several ways. Also, it is understood that the phraseology and terminology used here are for the purpose of description and should not be considered limiting. The use of "including", "comprising" or "having" and their variations used here is intended to cover the items listed below and their equivalents, as well as additional items. Unless otherwise specified or limited, the terms "assembled" , "connected", "supported", and "coupled" and their variations are used widely and cover both direct and indirect assemblies, connections, supports, and couplings. Furthermore, "connected" and "coupled" are not restricted to connections or couplings physical or mechanical.
[0012] [012] The following discussion is presented to enable one skilled in the art to develop and use the modalities of the invention. Various modifications to the illustrated modalities will be readily clear to those skilled in the art, and the generic principles cited here can be applied to other modalities and applications without abandoning the modalities of the invention. Thus, the modalities of the invention are not limited to the modalities shown, but are in accordance with the broader scope consistent with the principles and characteristics described here. The following detailed description is to be read with respect to the figures, in which similar elements in different figures have similar reference numbers. The figures, which are not necessarily to scale, represent selected modalities and are not intended to limit the scope of the modalities of the invention. Those skilled in the art will recognize that the examples provided here have many useful alternatives and fall within the scope of the modalities of the invention.
[0013] [013] FIG. 1 illustrates a spray boom tubing 100 to which several nozzle bodies 10 are attached. The spray boom tubing 100 can be an agricultural boom and can be used to deliver a fluid solution (i.e., water and / or chemicals) to the nozzle bodies 10. Each nozzle body 10 includes spray tips 12, a main body 14, a drum 16, a valve assembly 18, and a pipe clamp 22. As an example in FIG. 1, two spray nozzles 12 are shown coupled to the ports 15 of the barrel 16 of the nozzle body 10. In some embodiments, the barrel 16 may include three, four, or five ports 15 to receive a corresponding number of spray nozzles 12. In some embodiments, the drum 16 may be a multi-port indefinable drum. In some embodiments, valve assembly 18 may be a diaphragm check valve assembly. Two wet bar adapters 103 are shown in FIG. 1. Wet boom adapters 103 include an air suction device 102. Each of the adapters 103 can also include an adapter gasket 21 for coupling air suction device 102 to the spray boom tubing 100.
[0014] [014] FIGS. 2 to 5 illustrate an air suction device 102 coupled to the bar 100 with a hose clamp 104. The air suction device 102 can form an end cap at one end of the bar 100. As shown in FIG. 3, the air suction device 102 can include an air port 106 which is in fluid communication with the bar 100 and the solution (not shown) that it delivers to the nozzle bodies 10. As discussed above, the bar 100 it can also include air that is trapped above the solution inside the bar 100. The air suction device 102 is designed so that the air port 106 is in fluid communication not only with the solution in the bar 100, but also with the trapped air above the solution. This allows the trapped air to be drained from the bar 100 and delivered to the nozzle body 10 coupled to the air suction device 102.
[0015] [015] FIG. 6 illustrates an air suction device 102 according to an embodiment of the invention. The air suction device 102 can be generally cylindrical and can include a main body 112 and a female pipe fitting 110. The main body 112 can be designed to engage with the bar. The main body 112 can include a recessed part 114 with a first support 169 and a second support 171. The air suction device 102 can include one or more openings 116. While the openings 116 have been found to be located in the recess 114 in FIG. 6, the openings 116 can be located anywhere in the air suction device 102.
[0016] [016] FIGs. 7A to 7C illustrate an alternative embodiment for an air suction device 202 including a clamp 230 that is integrated with main body 212. As shown in FIG. 7C, the clamp 230 includes a button 208 which is designed to sealingly engage an opening in the bar, as will be further described below. The clamp 230 includes a body part 233 with an inner surface 232 and an outer surface 234. The clamp 230 may include a first securing component 236 and a second securing component 238 that are pivoted together with a pivot pin 240. One fastener 242 can be used to press the inner surface 232 of the clamp against an outer surface of a bar when coupling the air suction device 202 to the bar. As shown in FIG. 7A, the air suction device 202 may include ribs 244 which are beneficial for obtaining a more uniform thickness when manufacturing device 202.
[0017] [017] FIGS. 8A and 8B illustrate another embodiment of an air suction device 202 mounted on a wet boom pipe 100. A supply cock 20 can be in fluid communication with the spray boom pipe 100. A pipe clamp 22 can hold the nozzle body 10 to the bar 100. The supply cock 20 can be in fluid communication with a valve chamber 24 via a first upper feed point 26 and a second lower feed point 28. The use of multiple feed points between the supply cock 20 and the valve chamber 24 can result in increased flow capacity with little change in the dimensional envelope and substantially no change in the geometry of the diaphragm check valve assembly 18. In some embodiments, the first feed point 26 and the second feed point 28 can force entry into the valve chamber 14 on both the upper and lower faces, respectively. This can allow for higher flow rates and can be achieved with the feed tap 20 and the main body 14 being a single molded part.
[0018] [018] As shown in FIG. 8B, the air suction device 202 may include a passage 218 and an outlet port 219. Passage 218 is in fluid communication with air port 206 and outlet port 219, and is also in fluid communication with the solution and the air in the bar 100. The air port 206 can be formed in the female pipe fitting 210 and can be designed so that the air port 206 is in fluid communication with both the solution and the air trapped in the bar 100. Air port 206 can be positioned asymmetrically towards an upper part of main body 212 and bar 100. Passage 218 can be designed to change the direction of the solution and air as the solution and air travel from bus 100 to exit port 219. For example, passage 218 may be a right-angled passage. The turbulent flow path can help to mix the air with the solution to help release the trapped air from the bar 100. Additionally, the right angle passage helps to prevent the air suction device 202 from projecting too far from the end of the bar 100 by a more compact overall bar length 100.
[0019] [019] As shown in FIG. 8B, the female tubing fitting 210 engages with the supply cock 20. The feed tap 20 can engage the female tubing fitting 210 on outlet port 219. This coupling allows the solution and the air trapped in the bar 100 to travel from the bar 100 to the air suction device 202, enter the air port 206, and pass through the passage 218 and the outlet port 219 of the air suction device 202 as it flows into the nozzle body 10 on the tap power supply 20.
[0020] [020] Different modes of the air suction device can be designed to couple to the bar 100 in different ways. For example, the air suction device 202 can be designed to secure the bar 100 using an integrated clamp 230, as shown in FIGs. 8A and 8B. The clamp 230 may include an inner surface 232, an outer surface 234, a first fixing component 236, and a second fixing component 238 which are pivoted together with a pivot pin 240. A fixer 242 can be used to tighten the surface inner 232 of the clamp against an outer surface 111 of a bar 100 when coupling the air suction device 402 to the bar 100. An inner surface 232 of the clamp 230 can engage with an outer surface 111 of the bar 100, as shown in FIGS. 8A and 8B. The clamp 230 may include a button 208 to engage an opening 113 of the bar 100. The button 208 seals the air suction device 202 to the bar 100. A gasket 215, such as an O-ring, can be used to help seal the button 208 and the opening 113 on the bar 100. In addition, the button 208 ensures that the air suction device 202 maintains a specific angular orientation with respect to the bar 100. This will help to ensure that the nozzle body 10 at the end of the boom 100 does not leave the spray time with other nozzle bodies 10 located along the length of the boom 100. The engagement of the button 208 with the opening 113 also helps to maintain the longitudinal location of the device 202 with respect to the boom 100.
[0021] [021] As shown in FIGs. 9A to 9C, an alternative embodiment of an air suction device 302 can be designed to couple to the bar 100 having an outer surface 317 engaging an inner surface 121 of the bar 100 (as shown in FIG. 9C). The air suction device 302 can include nipples 323 to help seal the outer surface 317 of a main body 312 of the air suction device 302 against the inner surface 121 of the bar 100. The air suction device 302 can form a inner end cap for one end of bar 100.
[0022] [022] FIGs. 9A to 9C illustrate that the air suction device 302 can also be used with a dry bar 107. The dry bar 107 can be used to support the nozzle body 10, and thus indirectly support the dry bar 100 as well. Dry bars 107 can be used in circumstances where more nozzle bodies 10 and / or a longer wet bar 100 are needed. Although the dry bar 107 is shown in conjunction with a specific embodiment of an air suction device 302, a dry bar 107 can be used with any of the air suction device embodiments as described here.
[0023] [023] FIGS. 10A to 10C illustrate another alternative embodiment of an air suction device 402 where an outer surface 417 of the device 402 engages the inner surface 121 of the bar 100. A main body 412 is coupled to a female pipe fitting 410. In this embodiment, a clamp 427 can be used to retain the female pipe fitting 410 with respect to bar 100. The clamp 427 passes through a slot 429 in the female pipe fitting 410. As shown in FIG. 10C, gasket 431, such as a rubber O-ring, can be used to help seal the outer surface 417 of the air suction device 402 against the inner surface 121 of the bar 100.
[0024] [024] FIGS. 11A through 11C illustrate an end cap 550 that can be used at one end of a bar 100. End cap 550 may include a cap part 551 and a clamp part 530. The clamp part 530 of end cap 550 is similar to the clamp 230 described above and shown in FIGs. 7A to 7C. The end cap 550 may include a body part 533 with an inner surface 532, an outer surface 534, a first fastening component 536, and a second fastening component 538. The first and second fastening components 536, 538 can be pivoted together with a pivot pin 540 and fastened with a fastener 542. End cap 550 may also include a button 508 with gaskets 515, 531 to help seal end cap 550 to bar 100. End cap 550 it can be useful when an operator chooses to locate an air suction device at one end of the bar 100, with an end cap 550 at the other end of the bar 100.
[0025] [025] FIGS. 12A through 12D illustrate another embodiment of an air suction assembly 600. Assembly 600 may include an air suction device 602 and a removable clamp 660. FIG. 12A illustrates assembly 600 in an exploded view, and FIG. 12B illustrates the assembly 600 in an assembled condition. The air suction device 602 can include a main body 612, a female pipe fitting 610, a recessed part 614, and an outer surface 617. The device 602 can include the openings 616.
[0026] [026] The removable clamp 660 may include a body part 663 with an inner surface 662, an outer surface 664, and buttons 608. The clamp 660 may also include a first side 667 and a second side 668. The clamp 660 may include a first fastening component 670 and a second fastening component 672. Each clamp component 670, 672 can include a first flange 674 and a second flange 676 with holes 678 for receiving fasteners 680.
[0027] [027] When assembled, the inner surface 662 of the removable clamp 660 is designed to engage an outer surface 617 of the air suction device 60 (as best shown in FIG. 12A), with the buttons 608 sealingly engaging the openings 616 in the air suction device 602 (as best shown in FIG. 12D). Although a bar 100 is not shown in FIGs. 12A to 12D, the buttons 608 can be designed to engage sealingly in the bar openings, as discussed above. Gaskets 615, such as a rubber O-ring, can be used in conjunction with buttons 608 and to help seal openings 616 in air suction device 602 to bar 100. Gaskets 631 also help to seal device 602 to the bar 100. The removable clamp 660 can comfortably fit on the recessed part 614 of the air suction device 602 so that the first side 667 engages a first support 669 of the recessed part 614 and the second side 668 engages a second support 671 of the lowered part 614. This engagement will help to prevent the air suction device 602 from moving longitudinally with respect to the bar 100.
[0028] [028] FIG. 12D illustrates that the air suction device 602 can incorporate a drainage passage 635. Drainage passage 635 is in fluid communication with the solution that is loaded by bar 100 and with passage 618, and may be located below the door airflow 606. Drainage passage 635 can be sized to be smaller than air port 606, so that most of the solution and air trapped in bar 100 are delivered through passage 618 entering air port 606 In one embodiment, drainage passage 635 is generally circular and approximately 4.5 mm in diameter; however, drain passage 635 may have other sizes and shapes.
[0029] [029] Drainage passage 635 may allow an operator to drain bar 100 at a faster rate. In embodiments where the air suction device does not include a drainage passage 635, the solution near the end of the bar 100 next to the air suction device needs to drain from the bar 100 by draining from an inner nozzle body 10 which drains solution through an opening in the base of the bar 100. This can result in increased drainage times for the bar 100 and, if the bar 100 is not perfectly level, it can result in a solution collecting near one end of the bar 100 and not draining completely from bar 100.
[0030] [030] FIGS. 13A-13G illustrate another embodiment of the air suction device 702 with a removable clamp 660. FIGs. 13A to 13G also illustrate an air suction device 702 where a female tubing fitting 710 is removable from a main body 712 of the air suction device 702. The female tubing fitting 710 can be removed if the bar 100 is makes it plugged or clogged.
[0031] [031] The air suction device 702 may include a clamp 727 that fits into slots 737 in the female pipe fitting 710 and slots 739 in the main body 712 in order to retain the female pipe fitting 710 with respect to the main body 712. If the clamp 727 is removed, the female pipe fitting 712 can be removed from the main body 712. FIG. 13B illustrates the female pipe fitting 710 removed from main body 712. As shown in FIG. 13E, the air suction device 702 may also include a passage 718, an air port 706, an outlet port 719, and a drain passage 735.
[0032] [032] The female pipe fitting 710 can include an outer surface 741 with different characteristics. In one embodiment, the female pipe fitting 710 may include an outer surface 741 with a claw 743 as shown in FIGs. 13A to 13E. The claw 743 can assist a user to remove the female pipe fitting 710 from the main body 712 of the air suction device 702. In another embodiment, the outer surface 741 can include a hose shank connection 745, as shown in FIGS. 13F to 13H. The hose shank connection 745 can be in fluid communication with the passage 718 and can be used to recycle fluid or provide solution to another nozzle body 10.
[0033] [033] FIGS. 14A to 14C illustrate a fluid delivery system 800 that can include a bar 100, multiple nozzle bodies 10, piping clamps 22, and air suction devices 102. The bar 100 can include a first section 100a and a second section 100b. The nozzle bodies 10 can be spaced along the bar 100 at regular intervals. The fluid delivery system 800 can also include a universal flange "T" adapter with integrated clamp 882. The "T" adapter 882 can be attached to an outer surface 111 of the bar 100 with clamps 830 that are integrated into the adapter 882. Clamps 830 couple the first section 100a and the second section 100b to the "T" adapter 882 and keep the first section 100a and the second section 100b in rotational alignment, or rotationally synchronized. In other words, the clamps 830 keep an angular relationship between the first section 100a and the second section 100b of bar 100. A fluid source (not shown) can be in fluid communication with adapter 882. Fluid can flow through the hollow channel of bar 100 to the bodies nozzle 10 passing through openings in the bar 100 to the nozzle bodies 10 that are not at the ends of the bar 100, or through the outlet ports on the air suction devices 102. Although the fluid delivery system acid 800 in FIGS. 14A to 14C show an air suction device 102 at each end of the bar 100, an air suction device 102 does not need to be at each end of the bar 100 to remove the trapped air from the bar 100. Preferably a cover 550 or other device can be located at one end of bar 100. Any of the air suction devices discussed here can be used in the fluid delivery system 800.
[0034] [034] FIGS. 15A to 15C further illustrate the 882 integrated clamp universal flange "T" adapter of FIGS. 14A to 14C. Adapter 882 can include a main body 883 and a flange 884. The "T" adapter 882 can also include two clamps 830 which are integrated with main body 883 of adapter 882. Clamps 830 are of similar construction to clamps 230, 530 discussed with respect to air suction device 202 and end cap 502. Clamps 830 may include buttons 808 that sealingly engage openings in bar 100, as described above, and may include gaskets 815. Clamps 830 may include a body part 833 with an inner surface 832 and an outer surface 834. Additionally, clamps 830 may include a first fixing component 836 and a second fixing component 838 that are pivoted together with a pivot pin 840. The fasteners 842 can be used to tighten the inner surfaces 832 of the b 830 grapples against an outer surface of a bar when coupling the "T" adapter 882 to the bar, as discussed above for FIGs. 14A and 14B.
[0035] [035] FIGS. 16A to 16E illustrates other types of adapters that can be incorporated into the fluid delivery system 800 with removable clamps 660. For example, the fluid delivery system 800 can include a universal flange T-adapter 886, an universal flange 888, and a quick coupler adapter 890, each coupled to the bar 100 with the removable clamps 660. The removable clamps 660 can couple the universal flange T-adapter 886 to the first section 100a of the bar 100 and the second section 100b of the bar 100 so as to maintain an angular relationship between the first section 100a and the second section 100b. Adapters 886, 888, 890 are further shown in FIGs. 17F, 17E, and 17B, respectively. FIGs. 16A to 16E also illustrate openings 113 in the bar where the nozzle bodies can be coupled to be in fluid communication with the bar 100.
[0036] [036] The fluid delivery system 800 can also be configured to incorporate one or more of the other adapters shown in FIGs. 17A to 17G. FIG. 17A illustrates a blank adapter 887, FIG. 17C illustrates a nozzle body end cap adapter 891, FIG. 17D illustrates a hose shank adapter (HB) 892, and FIG. 17G illustrates a 90 ° 893 hosepipe (HB) adapter. The fluid delivery system 800 can also be configured to incorporate adapters of a similar nature.
[0037] [037] The adapters shown in FIGs. 17A to 17G can couple bar 100 in a similar manner to one or more removable clamps 660. FIGs. 16B and 16C illustrate how the universal flange adapter 888 of FIG. 17E is coupled to a bar 100. Adapter 888 may include an inner surface 889 that slides over outer surface 111 of bar 100. One or more openings 816 in adapter 888 align with openings 113 of bar 100. Fixing components 670, 672 can be placed in a recessed part 814 of the adapter 888 which includes the openings 816. The fasteners 670, 672 can be placed within the recessed part 814 so that the buttons 608 align with the openings 816 of the adapter 888 and with the openings 113 in the bar 100. The fasteners 680 can fasten the two fastening components 670, 672 together and the buttons 608 of the clamp 660 then seal the 816 openings of the adapter 888 and the openings 113 of the bar 100. O adapter 888 can also include a first support 869 that engages the first side 667 of the clamp 660 and a second support 871 that engages a second side 671 of the clamp 660. This engagement ensures that the adapter 888 holds its position in relation to the longitudinal and angular bar 100.
[0038] [038] All adapters shown in FIGs. 17A to 17G, and other similar adapters, can be coupled to the bar 100 with a removable clamp 660 in a similar manner to that described above with respect to adapter 888.
[0039] [039] Alternatively, the adapters shown in FIGs. 17A to 17G, and other similar adapters, can be configured with an integrated clamp to couple the adapters to the bar 100. One such example already discussed above is the universal flange “T” adapter 882 shown in FIGs. 15A to 15C. Another example is the universal flange adapter 988 shown in FIGs. 18A to 18C. Similar to adapter 888 discussed above, adapter 988 may include an inner surface 989 for engaging the inner surface 111 of bar 100. Adapter 988 includes an integrated clamp 930, similar to the integrated clamps 230, 530, and 830 discussed above. The integrated clamp 930 provides another way to attach the adapters to the bar to keep the adapters in a fixed longitudinal and angular position with respect to the bar.
[0040] [040] The air suction devices described above provide several advantages for the fluid delivery systems 800. By draining the solution from a higher point than the base of the bar 100, the air suction devices reduce the amount of air that can be trapped in the bar 100. The air can also become mixed in the solution due to the turbulent flow caused by the passage of the air suction devices changing the solution and air path as they flow from the bar 100 to the supply tap 20 of the nozzle body 10.
[0041] [041] Air suction devices also reduce cut-off time for diaphragm check valve 18. This results in less solution being dispersed, which is not intended to be dispersed by the fluid delivery system 800. The suction devices air pressure reduces the amount of air trapped in the bar 100 and reduces the pressure in the bar 100. Then, when the fluid delivery system 800 is turned off, the pressure in the bar is only slightly above the cut-off pressure of the check valve 18 in the nozzle body 10. This reduction in air pressure in bar 100 also helps to reduce the pressure variation between nozzle bodies 10 along the length of bar 100, which results in a more regular application of solution to the application target. . FIGs. 19 to 21 help to illustrate the magnitude of the reduced response time for check valves 18 in a fluid delivery system 800 that employs an air suction device in accordance with the modalities of the invention.
[0042] [042] FIG. 19 is a graph illustrating the response time of the diaphragm check valve 18 for a nozzle body 10 shown as the number of cycles versus time for the response of the diaphragm check valve 18 with the wet bar tubing 100 in one air saturation condition. If no air is introduced, after approximately six cycles, the response time for the non-return valve 18 to turn off is reduced from approximately five seconds to approximately two seconds. Thus, for a system 800 not employing an air suction device, the response time of the check valve 18 is only reduced after several cycles.
[0043] [043] FIG. 20 is a bar graph illustrating the cutting performance test data of diaphragm check valves 18 in a fluid delivery system using an air suction device, versus a wet bar tubing without an air suction device. air, in a bar with air and a bar without air. As shown in the bar graph, the response time of the diaphragm check valve 18 of the fluid delivery system without an air suction device in a wet bar tubing with trapped air was significantly longer (5.59 seconds) than than the other two scenarios. The response time for the fluid delivery system with an air suction device was very similar to the response time for a fluid delivery system without an air suction device, but having a wet bar completely saturated with fluid.
[0044] [044] FIG. 21 is a graph illustrating the performance of the diaphragm check valve by comparing the response time for the check valves to a fluid delivery system incorporating an air suction device with the response time for the check valves for a system without an air intake device. The response time for the diaphragm check valves for the two systems was checked at different pressures. As shown by the graph, the fluid delivery system with the air suction device recorded much shorter response times than the system without the air suction device, especially at lower pressures.
[0045] [045] Additionally, air intake devices are a passive system that does not require electronics or power. As such, air intake devices provide a consistent and robust system for reducing the amount of air trapped in a bar.
[0046] [046] Air suction devices can be manufactured from materials including, but not limited to, polypropylene and polyoxymethylene.
[0047] [047] Those skilled in the art appreciate that while the invention has been described above in conjunction with the particular modalities and examples, the invention is not necessarily so limited, and that numerous other modalities, examples, uses, modifications and abandonments in the modalities, examples and Uses are covered by the appended claims.

权利要求:
Claims (18)
[0001]
Air suction device to release the air trapped in a pipe when delivering a solution to a nozzle body, the nozzle body including a supply cock, the air suction device FEATURED by the fact that it comprises: a main body that engages the pipe; a female pipe fitting coupled to the main body, the female pipe fitting forming an end cap for one end of the pipe and engaging the supply cock; an air port positioned asymmetrically towards an upper part of the main body and the pipe in the female pipe fitting that is in fluid communication with the solution and the air; a passage through the female pipe fitting that is in fluid communication with the air port, the passage delivering both the solution and the air to the supply tap; an outlet port on the female pipe fitting that is in fluid communication with the passage, the supply cock engaging the outlet port.
[0002]
Air suction device according to claim 1, CHARACTERIZED by the fact that the passage changes the direction of the solution and the air between the air port and the outlet port.
[0003]
Air suction device according to claim 2, CHARACTERIZED by the fact that the passage forms a right angle between the air port and the outlet port.
[0004]
Air suction device according to claim 1, further characterized by the fact that it comprises a drainage passage in fluid communication with the solution in the pipeline and in fluid communication with the passage, the drainage passage located below the door of air.
[0005]
Air suction device according to claim 4, CHARACTERIZED by the fact that the drain passage is dimensioned so that most of the solution and air enter the passage in the air port.
[0006]
Air suction device according to claim 1, CHARACTERIZED by the fact that the female pipe fitting is removable from the main body.
[0007]
Air suction device according to claim 1, CHARACTERIZED by the fact that the female pipe fitting includes a slot that receives a claw in order to retain the female pipe fitting.
[0008]
Air suction device according to claim 1, CHARACTERIZED by the fact that an internal surface of the air suction device engages with an external surface of the pipe.
[0009]
Air suction device according to claim 1, CHARACTERIZED by the fact that the main body includes a recessed part, a first support, and a second support, the first support being on an opposite side of the lowered part of the second support.
[0010]
Air suction device according to claim 1, CHARACTERIZED by the fact that the pipe is an agricultural bar.
[0011]
Air suction device according to claim 1, CHARACTERIZED by the fact that the solution is an agricultural chemical.
[0012]
Air suction device according to claim 1, CHARACTERIZED by the fact that the nozzle body receives at least three spray nozzles.
[0013]
Air aspirator assembly to release the air trapped in a pipe when delivering a solution to a nozzle body, the nozzle body including a supply tap, the pipe including an opening, the assembly being CHARACTERIZED by the fact that it comprises: a main body that engages the pipe; a female pipe fitting coupled to the supply cock, the female pipe fitting including an air port, a passage, and an outlet port; the air port in fluid communication with the solution and the air; the passage in fluid communication with the air port, the passage delivering both the solution and the air to the supply tap; the outlet port in fluid communication with the passage, and the supply cock engaging the outlet port; and a clamp including a body part with an internal surface with a button, the button engaging the opening in the tubing in order to maintain an angular orientation between the main body and the tubing.
[0014]
Assembly according to claim 13, CHARACTERIZED by the fact that the female pipe fitting forms an end cap for one end of the pipe.
[0015]
Assembly according to claim 13, CHARACTERIZED by the fact that the main body includes a second opening and the clamp is removable from the main body, the button engages in the second opening in addition to the opening in the pipe in order to maintain the angular orientation between the main body and the pipe.
[0016]
Assembly according to claim 13, further characterized by the fact that it comprises a gasket that engages the button to create a seal between the button and the opening.
[0017]
Assembly according to claim 16, CHARACTERIZED by the fact that the internal surface of the clamp includes a second button, the main body includes a third opening and the tubing includes a fourth opening, the second button engages the third opening and the fourth opening to additionally maintain the angular orientation between the main body and the pipe.
[0018]
Assembly according to claim 17, further characterized by the fact that it comprises a second gasket that engages the second button to create a seal between the second button and the third and fourth opening.

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法律状态:
2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

2020-03-10| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

2020-12-08| B09A| Decision: intention to grant|

2021-02-17| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 04/04/2011, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

US32046410P| true| 2010-04-02|2010-04-02|

US61/320,464|2010-04-02|

PCT/US2011/031134|WO2011123865A1|2010-04-02|2011-04-04|Air aspiration device|

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