• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PRESSURE REDUCING APPLIANCE. A pressure reducing device (10) includes a body (12) equipped with a first side opening (20) through which a pressure fluid is supplied and a second side opening (22) through which the pressure fluid after having reduced pressure is discharged. In addition, a feedback passage (64) is formed that establishes communication between the second side opening (22) and a third diaphragm chamber (90) which faces a pilot valve (93). In addition, a pressure fluid flowing through the second side opening (22) is introduced through the feedback passage (64) into the third diaphragm chamber (90), thus the third diaphragm (78) being compressed upwards against an elastic force of a second spring (82) for balance.
    公开号:BR112012033218B1
    申请号:R112012033218-0
    申请日:2011-06-15
    公开日:2020-10-27
    发明作者:Masayuki Okitsu；Naoki Iguma；Kenji Tsukamoto
    申请人:Smc Kabushiki Kaisha；
    IPC主号:
    专利说明:

    Technical Field
    The present invention relates to a pressure reducing apparatus for reducing the pressure of a pressure fluid supplied to a desired pressure and for guiding the pressure fluid outlet. Prior Art
    In Japanese Patent Publication Open to the Public No. 10-198433, the applicant of the present invention proposed a pressure reducing apparatus through which a pressure fluid supplied from the first side has the pressure reduced to a desired pressure and is guided to a second side. In the event that the pressure fluid is supplied at a defined pressure desired from a source of pressure fluid supply to a fluid pressure device, the pressure reducing apparatus is disposed between the source of pressure fluid supply and the fluid pressure device, the pressure fluid, which is supplied to the first side of the pressure fluid supply source having the pressure reduced to a desired pressure that corresponds to the specifications of the fluid pressure device that is connected to the second side, and then the pressure fluid is supplied to the second side. Summary of the Invention
    A general objective of the present invention is to • propose a pressure reducing device, in which an amount of air consumed by the pressure reducing device can be reduced.
    The present invention is characterized by the fact that a pressure reducing device has a valve body that controls the flow of a pressure fluid introduced from a first side to a back pressure chamber by means of a separating and closing action on it in relation to a nozzle, and a diaphragm chamber that communicates with the back pressure chamber through a valve element disposed in the valve body, to reduce the pressure of the pressure fluid supplied on the first side, to a desired pressure and to guide the pressure fluid out to a second side.
    The pressure reducing apparatus includes a valve body, which is disposed between the back pressure chamber and the diaphragm chamber, the valve body being disposable in relation to the nozzle, a first connection passage that connects the first side with the back pressure chamber, and in which a state of communication is switched by the valve body, and a second connection passage that establishes the communication between the second side and the diaphragm chamber.
    A membrane of the valve body is arranged on one fluid supply side of the back pressure chamber, the first connection passage being connected to the fluid supply side, and the counter pressure chamber communicating with the second side via the second connection passage.
    According to the present invention, in the pressure reducing apparatus, which reduces the pressure of the pressure fluid and causes the pressure fluid to flow from the first side to the second side, by predicting the first connection passage that connects the first side to the back pressure chamber and where a state of communication is switched by the valve body, and the second connection passage that establishes communication between the second side and the diaphragm chamber, if a defined pressure of the pressure fluid on the second side does not the supply of pressure fluid to the back pressure chamber has been pre-determined through the valve body can be completely interrupted (or blocked). Due to this fact, the pressure fluid is not discharged into the atmosphere. On the other hand, even if a defined pressure has been established, the pressure fluid in the back pressure chamber is not discharged into the atmosphere, as the pressure fluid in the back pressure chamber flows to the second side through the nozzle, from the diaphragm chamber and the second connection passage. Therefore, in comparison with a conventional pressure reducing device, in which the pressure fluid that serves as the pilot pressure is discharged into the atmosphere, as the pilot pressure is supplied to the second side and used there, unnecessary consumption can be eliminated. pressure fluid and effectively reduce the amount consumed.
    The above and other objectives, characteristics and advantages of the present invention will become more evident from the description that follows when taken in conjunction with the attached drawings in which some preferred embodiments of the present invention are shown by way of an illustrative example. Brief Description of Drawings
    Figure 1 is a general cross-sectional view of a pressure reducing apparatus according to a first embodiment of the present invention; Figure 2 is a schematic structural view showing the pressure reducing apparatus of Figure 1; Figure 3 is a general cross-sectional view of a pressure reducing apparatus according to a second embodiment of the present invention; Figure 4 is a schematic structural view showing the pressure reducing apparatus of Figure 3; Figure 5 is a general cross-sectional view of a pressure reducing apparatus according to a third embodiment of the present invention; Figure 6 is an enlarged cross-sectional view showing the surroundings of a pilot valve in the pressure reducing apparatus of Figure 5; and Figure 7 is a schematic structural view showing the pressure reducing apparatus of Figure 5. Description of Modalities
    As shown in Figures 1 and 2, the pressure reducing apparatus 10 includes a body 12, a valve mechanism 14 for switching a fluid flow condition that flows through the interior of the body 12, valve castle 16 which is connected to an upper portion of the body 12, and an operating element 18 rotatably arranged on an upper part of the bonnet 16.
    The body 12 consists of a first body 24 having a first side opening (first side) 20 and a second side opening (second side) 22, a second body 26 disposed on an upper portion of the first body 24 and a third body 28 disposed in an upper portion of the second body 26. The first body 24, the second body 26 and the third body 28 are assembled together by pins not shown, forming a solidary body.
    The first lateral opening 20 opens on a lateral surface of the body and is connected to a source of pressure fluid supply not shown. The second side opening 22 opens to another side surface of the body and is connected to a non-illustrated fluid pressure device. In addition, between the first side opening 20 and the second side opening 22, a communication passage 30 is formed, which establishes communication between the first side opening 20 and the second side opening 22. A valve seat 32, on which a main valve 66 which will be described below is seated, is formed inside a communication passage 30.
    In addition, in a lower portion of the first body 24, an installation hole 34, which faces downwards and opens there, communicates with the communication passage 30. A plug 36 is inserted from below into the installation hole 34 and is locked by a locking ring 38. For this reason, the installation hole 34 is blocked by the plug 36, and the communication between the communication passage 30 and the outside is blocked.
    A first diaphragm 42 is disposed between the first body 24 and the second body 26 through a first retaining element 40 which is positioned in the center, while a second diaphragm 46 is disposed between the second body 26 and the third body 28 via a second retainer element in the form of a plate 44. A hole 48 is formed which penetrates along an axial direction (the direction of arrows A and B) in a central portion of the first retainer element 40.
    Furthermore, in a lower portion of the first diaphragm 42, a first diaphragm chamber 50 is provided between the first body 24 and the first diaphragm 42, and communicates with the second side opening 22 through a communication hole 52 which is formed in the first body 24. In addition, a second diaphragm chamber 54 is provided between the first diaphragm 42 and the second diaphragm 46 and communicates with a discharge opening 56, which opens to the side of the second body 26. More specifically, the second diaphragm chamber 54 communicates with the outside through the discharge opening 56.
    In addition, in an upper part of the second diaphragm 46, a backpressure chamber for nozzle (backpressure chamber) 58 is formed between the second diaphragm 46 and the third body 28, and a perforated hole 60 that communicates along the direction communicates. axial in the center of the third body 28.
    On the other hand, in the three bodies, first, second and third, 24, 26, 28, a bypass passage (first connection passage) 62 is formed in the first lateral opening 20 in relation to the center of the body 12, in order to establish a communication between the first side opening 20 and the drilled hole 60. In more detail, the bypass passage 62 is connected to an upper portion of the first side opening 20, and after extending upward through the three bodies, first second and third, 24, 26 and 28, bends at a right angle towards a central side in the third body 28 and is connected to the drilled hole 60.
    In addition, in the three bodies, first, second and third, 24, 26 and 28, a feedback passage (second connection passage) 64 is formed in the second lateral opening 22 in relation to the center of the body 12, in order to establish a communication between the second side opening 22 and a third diaphragm chamber that will be described later (diaphragm chamber) 90 of the valve bonnet 16. In more detail, the feedback passage 64 is connected to an upper portion of the second side opening 22 , and after extending upwards through the three bodies, first, second and third, 24, 26 and 28, it bends at a right angle towards a central side of the third body 28, it bends even more upwards at an angle straight and is connected to the third diaphragm chamber 90.
    The bypass passage 62 and the feedback passage 64 are formed so that they are not in communication with any of the first and second diaphragm chambers 50, 54 and the nozzle backpressure chamber 58.
    The valve mechanism 14 is arranged in the communication passage 30 in the first body 24, and includes a main valve 66 that is displaceable along the vertical direction (the direction of arrows A and B) and a first spring 68 that is between the main valve 66 and the plug 36.
    The main valve 66 comprises a seat element 70 which is arranged upwards from the plug 36 and which has a shape that gradually tapers upwards, and a sealing element 72 formed upwards from the seat element 70 and which closes the hole 48 of the first retainer element 40. In the main valve 66, the sealing element 72 is guided in a displaceable manner along the axial direction by insertion into a guide hole 74 that penetrates through the center of the first body 24.
    The first spring 68 comprises a helical spring, for example, which forces the main valve 66 in one direction (the direction of the arrow A) to separate from the plug 36, thereby making the seat element 70 sit in relation to the seat. valve 32 of the first body 24.
    The bonnet 16 is cylindrical in shape and is connected to an upper part of the third body 28 via a base element 76 disposed at a lower end of the bonnet 16. A third diaphragm 78 is disposed together with a third retainer element 80 between the bonnet 16 and the base element 76. The third retainer element 80 is arranged approximately in a central portion of the third diaphragm 78. A second spring 82, a rotary axis 84, and a spring holder 86 are provided inside the castle 16. A second spring 82 comprises a helical spring and the rotary axis 84 and the spring holder 86 constitute the operating element 18.
    A disc element 88, on which the third retaining element 80 fits, is provided on the upper surface of the third diaphragm 78. An end of the second spring 82 is attached to an upper part of the disc element 88. The third diaphragm chamber 90 it is formed between the third diaphragm 78 and the base element 76, and communicates with the drilled hole 60 of the third body 28.
    The base element 76 is equipped with a nozzle 92, which projects downward from an approximately central portion of it, the nozzle 92 being inserted into the drilled hole 60 of the third body 28.
    The interior of the nozzle 92 includes a valve hole 94 that penetrates along the axial direction (the direction of arrows A and B) and into which a pilot valve is inserted, which will be described below, (valve body) 93, and a pair of side holes 96 that open in a direction perpendicular to valve hole 94. Bypass passage 62 and valve hole 94 communicate with each other through side holes 96.
    Inside the pilot valve 93, a pilot passage 98 is formed that penetrates along the axial direction (the direction of arrows A and B). Pilot valve 93 is movable in the axial direction (the direction of arrows A and B) in relation to valve hole 94 and perforated hole 60. At the upper end of pilot valve 93, a valve element 100 is formed which is in recess having a cross-section of semi-spherical shape, and in which a spherical chorus 106 (described below) is retained.
    In addition, a third spring 102 is interposed between a lower end of the pilot valve 93 and the drilled hole 60, which forces the pilot valve 93 upwards (in the direction of arrow A). Because of this, a membrane 104 of pilot valve 93 abuts against the bottom end of nozzle 92, thereby blocking communication between valve hole 94 and the backpressure chamber for nozzle 58.
    On the other hand, the spherical body 106 which is retained in the valve element 100, works to close the pilot passage 98, and under the effect of the elasticity of the third spring 102, it normally abuts against the lower surface of the third retainer element 80.
    The operating element 18 is equipped with a rotary axis 84 which engages by screwing into an upper portion of the bonnet 16, and a handle 108 which is adjusted to engage with the rotating axis 84. The handle 108 is arranged to cover the upper portion of the bonnet 16. Furthermore, at a lower end of the rotating shaft 84, a spring holder 86 is engaged by screwing it through a flange, the other end of the second spring 82 being fixed to the spring holder 86. More specifically, the second spring 82 is interposed between the spring holder 86 and the disk element 88 within the castle 16, and serves to force the spring holder 86 and the disk element 88 into each other in opposite directions from each other.
    In addition, by rotating the handle 108, the rotary axis 84 is rotated integrally with it, when then the spring holder 86, which is screwed to the rotary axis 84 is moved in the axial direction. This results, for example, that the second spring 82 is compressed by means of the spring holder 86 and its compressive force is applied to the third diaphragm 78 (that is, acts on it).
    The pressure reducing apparatus 10 according to the first embodiment of the present invention is basically constructed as described above. The operations and advantages of the pressure reducing device 10 are described below.
    First, a pressure fluid supply source (not shown) is connected to the first side opening 20 via a tube not shown and a desired fluid pressure device such as a cylinder or the like, is connected to the second side opening 22. A pressure fluid is supplied to the first side opening 20 of the pressure fluid supply source not shown.
    After the above preparatory operations, an operator rotates the handle 108 which constitutes the operating element 18 in a desired direction. By lowering the spring holder 86, the second spring 82 is compressed, with the disc element 88 and the third diaphragm 78 being compressed down to a predetermined pressure (defined pressure) by the elastic force of the second spring 82. As a result of the compression of the third diaphragm 78 downward, the pilot valve 93 descends, opposing the elastic force of the third spring 102, and causes the membrane 104 to separate away from the lower end of the nozzle 92. Therefore, the pressure fluid, which passes through the bypass passage 62, passes through the drilled hole 60 and is supplied to the backpressure chamber for nozzle 58.
    In addition, the pressure (backpressure for nozzle) in the backpressure chamber for nozzle 58 is high, the second diaphragm 46 is compressed down to this pressure, and together with that, the first diaphragm 42 is compressed downwards, and the main valve 66 descends through the first retaining element 40 opposing the elastic force of the first spring 68. As a result, the seat element 70 of the main valve 66 separates away from the valve seat 32 of the first body 24, thus placing the first side opening 20 and second side opening 22 in communication. Therefore, the pressure fluid supplied to the first side opening 20 passes through the communication passage 30 running to the second side opening 22.
    At this point, a portion of the pressure fluid that runs within the second side opening 22 enters the third diaphragm chamber 90 through the feedback passage 64, and the pressure in the third diaphragm chamber 90 is increased. Simultaneously the third diaphragm 78 is compressed and moved upwards against the compression force of the second spring 82. For this reason, the pilot valve 93 is moved upwards by the elastic force of the third spring 102.
    In addition, when the pressure of the third diaphragm chamber 90 and the compression force of the second spring 82 are brought into balance, the membrane 104 of the pilot valve 93 sits in relation to the lower end of the nozzle 92, and the flow of the pressure fluid for the backpressure chamber 58 for nozzle. The pressure fluid that has had the pressure adjusted to the set pressure regulated by the handle 108, flows into the second side opening 22 and is supplied to a fluid pressure device not shown.
    On the other hand, when the pressure in the second side opening 22 rises above the defined pressure which is defined based on the rotation angle (number of revolutions) of the handle 108, the pressure fluid, which has had the high pressure, flows through of the feedback passage 64 into the third diaphragm chamber 90, and compresses and displaces the third diaphragm 78 further upwards (in the direction of arrow A) opposing the elastic force of the second spring 82. Simultaneously, as the pressure of the pressure fluid in the backpressure chamber for nozzle 58 and in the pilot passage 98 is higher than the pressure fluid pressure in the third diaphragm chamber 90, the pressure difference (differential pressure) causes the spherical body 106 to be compressed upwards, away from valve element 100.
    As a result, the pilot passage 98 and the third diaphragm chamber 90 are placed in communication and the pressure fluid inside the backpressure chamber for nozzle 58 passes through the pilot passage 98 and enters the third diaphragm chamber 90, when it is then reduced the pressure in the nozzle backpressure chamber 58. The spherical body 106 and the valve element 100 function as a nozzle membrane mechanism.
    By lowering the back pressure on the nozzle, the first diaphragm 42 and the second diaphragm 46 are moved upwards, accompanied by the sealing element 72 of the main valve 66, separating and moving away from the first retaining element 40. Simultaneously, the main valve 66 is raised under the effect of the elasticity of the first spring 68, when the seat element 70 rests on the valve seat 32. Consequently, the hole 48 of the first retainer element 40, which was closed by the sealing element 72 of the valve main 66 opens, and the pressure fluid, the pressure of which has risen in the second side opening 22, is introduced into the second diaphragm chamber 54 through hole 48, and is discharged into the atmosphere through the discharge opening 56.
    In the above mode, according to the first modality, the feedback passage 64 is provided, which establishes the communication between the second side opening 22 and the third diaphragm chamber 90, and associated with that, a configuration is provided that, when the pressure fluid flows from the first side opening 20 to the second side opening 22, the pressure fluid supplied to the backpressure chamber for nozzle 58 is able to pass through the feedback passage 64 and flow into the second side opening 22 without being discharged into the outside.
    Due to the configuration described above, in the event that the pressure on the second side (defined pressure) has not been previously determined in the second side opening 22, the membrane 104 of the pilot valve 93 rests on the lower end of the nozzle 92, and the supply of the pressure fluid to the nozzle back pressure chamber 58 is completely blocked. Therefore, the pressure fluid that forms the pilot pressure is not discharged into the atmosphere. In addition, even in the case where the pressure on the second side (defined pressure) of the pressure fluid in the second side opening 22 is determined, and such pressure has the pressure set in the backpressure chamber for nozzle 58 which flows into the second side opening 22 through the pilot passage 98 and the third diaphragm chamber 90, the pressure fluid is not discharged into the atmosphere. Therefore, in comparison with a conventional pressure reducing device, in which the pressure fluid that serves as a pilot pressure is discharged into the atmosphere, as the pilot pressure can be supplied to the second side opening 22, unnecessary consumption of the pressure fluid and effectively reduce the amount consumed.
    Next, a pressure reducing device 150 according to a second embodiment is shown in Figures 3 and 4.
    Its constituent elements, which are the same as those of the pressure reducing apparatus 10 according to the present invention are designated by reference numbers, and detailed descriptions of such characteristics will be omitted.
    The pressure reducing apparatus 150 according to the second embodiment differs from the pressure reducing apparatus 10 according to the first embodiment in that the branched passage 152 is provided within the body 12, which branches out from the feedback passage 64 and connects to the backpressure chamber for nozzle 58 and a choke section 154 is included in the branch passage 152.
    The branched passage 152 is formed in a vertical direction in the third body 28 which constitutes the body 12. A lower end of the branched passage 152 is connected to the backpressure chamber for nozzle 58, and an upper end of the branched passage 152 is connected to the flow passage. feedback 64. More specifically, the branched passage 152 communicates via the feedback passage 64 mutually with the backpressure chamber for nozzle 58, the second side opening 22 and the third diaphragm chamber 90.
    In addition, a choke section 154 that has a choke hole 156, which has the reduced diameter of the branch passage passage diameter 152 is disposed in the branched passage 152. The choke hole 156, for example, is formed so that have the diameter gradually decreasing from the backpressure chamber to nozzle 58 to the side of the third diaphragm chamber 90 (in the direction of arrow A)
    Thus, in the body 12, the branched passage 152 is provided, which branches from the feedback passage 64 disposed on the second side and communicates with the backpressure chamber for nozzle 58, the choke section 154, whose passage diameter is reduced, provided in the branched passage 152. By controlling, through the pilot valve 93, the amount of pressure fluid flow that is supplied from the first lateral opening 20, through the bypass passage 62 and the backpressure chamber for nozzle 58, the pressure in the backpressure chamber for nozzle 58 can be controlled with extreme precision with respect to the amount of pressure fluid flowing from the backpressure chamber for nozzle 58 through the choke section 154 and the second side opening 22.
    This results in the fact that in the pressure reducing device 150 it is possible to set the pressure to a low value, which can be done in addition, since the pressure difference between the backpressure chamber for nozzle 58 and the second side opening 22 is eliminated, in compared to a conventional pressure reducing device, the amount of pressure fluid consumed is reduced.
    Next, a pressure reducing device 200 according to a third embodiment is shown in Figures 5 to 7. Its constituent elements, which are the same as those of the pressure reducing apparatus 10 according to the present invention, are indicated with the same reference numbers, detailed descriptions of such characteristics being omitted.
    The pressure reducing apparatus 200 according to the third embodiment differs from the pressure reducing apparatus 10 according to the first embodiment in that the excavated groove (groove) 202, which is recessed in a recess in a direction opposite to that of the spherical body 106 is arranged on the valve element 100 of the pilot valve 93.
    The excavated groove 202 is formed, for example, with a triangular cross section, so that when the spherical body 106 is seated on the valve element 100, communication is maintained between the pilot passage 98 and the third diaphragm chamber 90 For this reason, even if the spherical body 106 is seated on the valve element 100 of the pilot valve 93, the backpressure chamber for nozzle 58 and the third diaphragm chamber 90 can be communicated through the pilot passage. 98 and the pressure fluid in the backpressure chamber for nozzle 58 is able to pass through the third backpressure chamber 90 running to the second side opening 22. For this reason, always allowing the pressure fluid to flow from the backpressure chamber to nozzle 58 for the second side opening 22, the pressure control on the second side (defined pressure) can be conducted with greater precision.
    In addition, in comparison with the pressure reducing apparatus 150 according to the second embodiment, as the excavated groove 202 can be provided directly on the valve element 100, the structure of the apparatus can be simplified without the need to increase the number of components. In addition, even in the event that the excavated groove 202 becomes clogged with dust or the like, when the spherical body 106 separates from the valve element 100, as a result of the passage of the pressure fluid, such powder is blown out of the excavated groove 202 , so that clogging can be prevented.
    The pressure reducing apparatus according to the present invention is not limited to the modalities described above. It is evident that several additional or modified structures could be adopted without deviating from the essence and spirit of the present invention.
    权利要求:
    Claims (6)
    [0001]
    1. Pressure reducing apparatus (10, 150, 200) having a valve body (93) that controls the flow of a pressure fluid introduced from a first side (20) to a back pressure chamber (58) by means of a separation and closing action of it in relation to a nozzle (92) and a diaphragm chamber (90) which communicates with the back pressure chamber (58) through a valve element (100) disposed in the valve body (93) to reduce the pressure of the pressure fluid supplied from the first side (20) to a desired pressure and to guide the pressure fluid to a second side (22), CHARACTERIZED by the fact that it comprises: the valve body (93), which it is arranged between the backpressure chamber (58) and the diaphragm chamber (90), the valve body (93) being displaceable with respect to the nozzle (92); a first connection passage (62) connecting the first side (20) with the back pressure chamber (58), and in which a communication state is switched by the valve body (93); and a second connection passage (64) establishing communication between the second side (22) and the diaphragm chamber (90), with a membrane (104) of the valve body (93) being arranged on one supply side. fluid from the back pressure chamber (58), the first connection passage (62) is connected to the fluid supply side and the back pressure chamber (58) communicates with the second side (22) through a second flow passage connection (64), the valve body (93) being disposable in an axial direction in an interior portion of the nozzle (92) and in an interior portion of the valve body (93), a pilot passage (98) is formed that penetrates along the axial direction, and communication is established through the pilot passage (98) between the back pressure chamber (58) and the diaphragm chamber (90).
    [0002]
    2. Pressure reducing apparatus according to claim 1, CHARACTERIZED by the fact that a choke section (154) is arranged on one side downstream of the back pressure chamber (58) to strangle a quantity of pressure fluid flow running from the back pressure chamber (58) to the second connection passage (64).
    [0003]
    3. Pressure reducing apparatus according to claim 1, CHARACTERIZED by the fact that it also comprises a branched passage (152) that connects the second connection passage (64) and the back pressure chamber (58), and being a section choke (154) arranged in the branched passage (152) to throttle the amount of flow of the pressure fluid flowing from the back pressure chamber (58) to the second connection passage (64).
    [0004]
    4. Pressure reducing apparatus according to claim 1, CHARACTERIZED by the fact that the valve body (93) includes a groove (202) through which a portion of the pressure fluid flows through the nozzle (92) and between the back pressure chamber (58) and the diaphragm chamber (90) when the nozzle (92) is closed by the membrane (104).
    [0005]
    5. Pressure reducing apparatus according to claim 4, CHARACTERIZED by the fact that the groove (202) is formed in a valve element (100) and is formed in recess in a direction away from a spherical body ( 106) which is seated within the valve member (100).
    [0006]
    6. Pressure reducing apparatus, according to claim 5, CHARACTERIZED by the fact that the groove (202) is formed having a triangular cross section.
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    同族专利:
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    CN102959486A|2013-03-06|
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    RU2541687C2|2015-02-20|
    KR20130038279A|2013-04-17|
    BR112012033218A2|2016-11-16|
    DE112011102092T5|2014-01-02|
    US20130074956A1|2013-03-28|
    KR101405084B1|2014-06-27|
    JP2012008795A|2012-01-12|
    RU2012155411A|2014-06-27|
    US9086701B2|2015-07-21|
    WO2011162270A2|2011-12-29|
    WO2011162270A3|2012-02-16|
    CN102959486B|2015-03-18|
    TW201207586A|2012-02-16|
    JP5464438B2|2014-04-09|
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    法律状态:
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-04-14| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-10-27| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/06/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2010-144058|2010-06-24|
    JP2010144058A|JP5464438B2|2010-06-24|2010-06-24|Decompressor|
    PCT/JP2011/064192|WO2011162270A2|2010-06-24|2011-06-15|Pressure reducing apparatus|
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