巴西专利BR112012007511B1 fan and air guide for fan blade

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专利摘要:
FAN BLADE AIR GUIDE The present invention relates to a fan comprising a rotating hub, a plurality of fan blades coupled with the hub, and a plurality of air guides coupled with the fan blades. Each fan blade has a free end and an opposite end attached to the hub. The air guides are positioned at selected locations along the length of the fan blades, between the ends of the fan blades. Each air guide includes a fin, which can extend upwards or downwards from the fan blade, each air guide can be formed of a resilient material and can be configured to allow the air guide to be attached to the blade fan, each air guide can define an opening through which the fan blade can be inserted. One or more surfaces of the air guide can be contoured to complement a contour of the surface of an airfoil fan blade.
公开号:BR112012007511B1
申请号:R112012007511-0
申请日:2010-09-24
公开日:2020-11-03
发明作者:Richard Aynsley；Richard Oleson
申请人:Delta T Corporation；
IPC主号:

专利说明:

PRIORITY
[0001] This application claims priority for US Provisional Patent Application Series No. 61 / 248,158, filed on October 2, 2009, entitled "Fan Guide Air Guide," the description of which is incorporated herein by reference . BACKGROUND
[0002] A plurality of fan systems have been made and used for years in a plurality of contexts. For example, several ceiling fans are described in U.S. Patent No. 7,284,960, entitled "Fan Blades," filed on October 23, 2007; U.S. Patent No. 6,244,821, entitled "Low Speed Cooling Fan," filed June 12, 2001; U.S. Patent No. 6,939,108, entitled "Cooling Fan with Reinforced Blade," filed September 6, 2005; and U.S. Patent No. D607,988, entitled "Ceiling Fan," filed January 12, 2010. The description of each of these U.S. patents is incorporated by reference herein. Additional exemplary fans are described in U.S. Pub. No. 2008/0008596, entitled "Fan Blades," published on January 10, 2008; U.S. Publication No. 2009/0208333, entitled "Ceiling Fan System with Brushless Motor," published August 20, 2009; and U.S. Patent Application No. 12 / 773,094, entitled "Ceiling Fan with Variable Blade Pitch and Variable Speed Control," filed May 4, 2010, the descriptions of which are also incorporated by reference herein. It should be understood that the teachings here can be incorporated into any of the fans described in any of the patents, publications, or patent applications referred to above.
[0003] A fan blade can be formed of several components that allow its configuration to be changed in a modular way. Examples of modular fan blades are described in US Publication No. 2010/0104461, entitled "Multi-Part Modular Airfoil Section and Method of Attachment between Parts," published on April 29, 2010, the description of which is incorporated by reference here in the present . A fan blade or airfoil can also include additional reinforcement in relation to the fan shaft. Merely exemplary fan blade reinforcement components and configurations are described in U.S. Provisional Patent Application No. 61 / 369,953, entitled "Fan Blade Retention System," filed on August 2, 2010, the description of which is incorporated by reference here. Alternatively, any other type of appropriate component or feature can be used to reinforce the coupling of a fan blade with a fan shaft; or such components or features can simply be omitted.
[0004] The outer end of a fan blade or airfoil can be finished by adding an aerodynamic tip or fin. Merely exemplary cells are described in U.S. Patent No. 7,252,478, entitled "Fan Blade Modifications," filed on August 7, 2007, the description of which is incorporated herein by reference. Additional cells are described in U.S. Publication No. 2008/0014090, entitled "Cuffed Fan Blade Modifications," published January 17, 2008, filed September 25, 2007, the description of which is incorporated herein by reference. Still other exemplary cells are described in U.S. Design Patent No. D587,799, entitled "Alula for a Fan Blade," filed March 3, 2009, the description of which is incorporated herein by reference. In some configurations, such cannulas can interrupt the external air flow at the tip of a fan blade, redirecting the flow to pass the air through the fan blade in a perpendicular direction, and also ensuring that the entire air flow leaves the air. front of the fan blade and reduces the formation of the tip vortex. In some configurations, this can result in increased operating efficiency in the region of the fan blade tip. In other variations, an angled extension can be added to the fan blade or airfoil, such as the angled airfoil extensions described in US Publication No. 2008/0213097, entitled "Angled Airfoil Extension for Fan Blade," published on September 4 2008, the description of which is incorporated herein by reference. Other suitable structures, which can be associated with an outer tip of an airfoil or fan blade, will be evident to those of ordinary skill in the art. Alternatively, the outer tip of an airfoil or fan blade may be simply closed (for example, with a lid or otherwise etc.), or any similar structure may be missing.
[0005] The interface of a fan blade and a fan shaft can also be provided in a plurality of ways. For example, an interface component is described in U.S. Publication No. 2009/0081045, entitled "Aerodynamic Interface Component for Fan Blade," published March 26, 2009, the description of which is incorporated herein by reference. Alternatively, the interface of a fan blade and a fan shaft may include any other component, or components, or may have no similar structure whatsoever.
[0006] Fans can also include a plurality of mounting structures. For example, a fan mounting structure is described in U.S. Publication No. 2009/0072108, entitled "Ceiling Fan with Angled Mounting," published on March 19, 2009, the description of which is incorporated herein. Of course, a fan does not need to be mounted for a ceiling or other upper structure, and can instead be mounted on a wall or on the floor. For example, a fan can be supported on top of a pole that extends above the earth. Alternatively, any other mounting structures and / or mounting techniques can be used in conjunction with the modalities described here.
[0007] It should also be understood that a fan may include sensors or other characteristics that are used to control, at least in part, the operation of a fan system. For example, such fan systems are described in U.S. Publication No. 2009/0097975, entitled "Ceiling Fan with Concentric Stationary Tube and Power-Down Features," published on April 16, 2009, the description of which is incorporated herein by reference; U.S. Publication No. 2009/0162197, entitled "Automatic Control System and Method to Minimize Oscillation in Ceiling Fans," published June 25, 2009, the description of which is incorporated herein by reference; WIPO Publication No. WO / 2009/100052, entitled "Automatic Control System for Ceiling Fan Based on Temperature Differentials," published on August 13, 2009, the description of which is incorporated herein by reference; and U.S. Provisional Patent Application No. 61 / 165,582, entitled "Fan with Impact Avoidance System Using Infrared," filed April 1, 2009, the description of which is incorporated herein by reference. Alternatively, any other appropriate control systems / characteristics can be used in conjunction with the modalities described here.
[0008] In some configurations, it may be desired to reproduce or approximate the function of an alula in a component that can be located in a position on a fan blade instead of on the free end of the fan blade. Such a component can provide a fan efficiency effect similar to the effect provided by an alula, albeit in one or more additional regions of the fan blade. In particular, such a component or accessory can serve as an aerodynamic guide or aerial blade, interrupting air sliding along the length or longitudinal axis of the fan blade; and redirecting the air flow in a direction perpendicular to the longitudinal axis of the fan blade, above and / or below the fan blade.
[0009] Although a plurality of components have been included with fans and fan systems, it is believed that none prior to that of the inventors has made or used the invention described here. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Although the specification ends with claims particularly emphasizing and distinctly claiming the invention, it is believed that the present invention will be better understood from the following description of certain examples taken in conjunction with the accompanying drawings, where as numerals of reference identify the same elements and where:
[0011] figure 1 describes a top view in perspective of a fan with exemplary air blades on its fan blades;
[0012] figure 2 describes a bottom view of the fan of figure 1;
[0013] figure 3 describes a partial upper perspective view of the fan of figure 1;
[0014] figure 4 describes a partial bottom perspective view of the fan of figure 1;
[0015] figure 5 describes another partial perspective view of the fan of figure 1;
[0016] figure 6 describes a front plan view of a fan blade with the fan air blades of figure 1;
[0017] figure 7 describes a top perspective view of the fan blade of figure 6;
[0018] figure 8 describes a bottom perspective view of the fan of figure 7;
[0019] figure 9 describes a cross-sectional view of the fan blade of figure 6, seen from the end of the fan blade hub through the free end of the fan;
[0020] figure 10 describes a cross-sectional view of the fan blade of figure 6, seen from the end of the fan blade hub through the free end of the fan blade, and with the upper air guide omitted;
[0021] figure 11 describes a perspective view of an upper air guide of the fan of figure 1;
[0022] figure 12 describes another perspective view of an upper air guide of the fan of figure 1;
[0023] figure 13 describes a perspective view of a lower air guide of the fan of figure 1;
[0024] figure 14 describes another perspective view of a lower air guide for the fan of figure 1;
[0025] figure 15 describes the perspective view of an exemplary alternative air guide;
[0026] figure 16 describes a front elevation view of the air guide in figure 15; and
[0027] figure 17 describes a side elevation view of the air guide in figure 15.
[0028] The drawings are not intended to be limiting in any way, and it is considered that various modalities of the invention can be realized in a plurality of forms, including those not necessarily described in the drawings. The attached drawings incorporated into and forming a part of the specification describe various aspects of the present invention; it being understood, however, that this invention is not limited to the precise arrangements shown. DETAILED DESCRIPTION
[0029] The following description of certain examples of the invention should not be used to limit the scope of the present invention. Other examples, characteristics, aspects, modalities and advantages of the invention will become apparent to those skilled in the art from the following description, which is, by way of illustration, one of the best considered ways for carrying out the invention. As will be understood, the invention is capable of other obvious and different aspects, all without departing from the invention. Consequently, drawings and descriptions should be considered as illustrative in nature and not restrictive.
[0030] As shown in figures 1 to 5, an exemplary fan (10) includes a support (12), a motor (14), a hub (16), and a plurality of fan blades (18). The bracket (12) is configured to be coupled with a ceiling structure, so that the fan (10) can be suspended from the ceiling. The support (12) can be constructed and / or operable according to the techniques of any of the patents, patent publications, or patent applications mentioned herein. The fan blades (18) extend radially outwardly from the hub (16), and the motor (14) is operable to rotate the hub (16) with the fan blades (18). A pin (20) is coupled to the free end of each fan blade (18). Any of these components, among other components that the fan (10) may have as desired, can be built and / or operable according to the teachings of any of the patents, patent publications or patent applications mentioned here. In fact, several paths in which the teachings of patents, patent publications or patent applications cited herein can be combined with the teachings of the present patent application will be apparent to those skilled in the art. For example, the hub (16) and fan blades (18) can be configured so that the fan (10) has a diameter of approximately 2.44m (8 feet). In other variations, the fan (10) has a diameter between approximately 1.83m (6 feet) inclusive and approximately 7.32m (24 feet) inclusive. Alternatively, the fan (10) can have any other suitable dimensions.
[0031] As shown in figures 1 to 10, each fan blade (18) includes an upper air guide (50) and a lower air guide (70) attached to it. While each fan blade (18) is shown to only include an upper air guide (50) and a lower air guide (70), it should be understood that each fan blade (18) can have any desired number of guides of air (50, 70). For example, each fan blade (18) can have one or more upper air guides (50) or just one or more lower air guides (70). It should also be understood that while the air guides (50, 70) are each shown to be positioned in a location corresponding to approximately 2/3 the length of each fan blade (18) with respect to the hub (16 ), the air guides (50, 70) can be installed in any other suitable position along the length of each fan blade (18). Similarly, while the upper air guide (50) and the lower air guide (70) are shown to be positioned at substantially close locations along the length of the fan blade (18), it should be understood that the air guide upper (50) and lower air guide (70) can be positioned in any other suitable relationship to each other.
[0032] Each upper air guide (50) of the present example comprises a vertical flap (52) and a base (54). The base (54) is configured to allow the upper air guide (50) to be removably attached to the upper surface of the fan blade (18). In the present example, the vertical fin (52) and the base (54) are formed together as a single piece of resilient plastic material. For example, the fin (52) and the base (54) can be molded together. Alternatively, the fin (52) and the base (54) can be formed separately, then later joined using any suitable techniques or devices. Similarly, the fin (52) and the base (54) can be formed from any suitable material or combinations of materials (for example, plastic base (54) with metal fin (52), etc.), and can have any properties in addition to or instead of having resilient properties.
[0033] In the present example, the resilience of the upper air guide (50) allows it to be broken into more than one fan blade (18). In particular, the resilience of the material allows the base (54) to deform to pass over the edge of the fan blade (18) and then return to its original shape to snap into place. As is best shown in figures 11 and 12, the base (54) has cut ends (56, 58), which provides a comfortable fit against the rail and conduction edges (19,17) of the fan blade (18). In a merely exemplary method of the upper air guide (50) of safety for the fan blade, the end of the rail edge clip (56) is first engaged with the rail edge (19) of the fan blade (18) . The upper air guide (50) is then rotated towards the leading edge (17) of the fan blade (18) until the leading edge clip (58) deforms away from the leading edge (17) to clean the leading edge (17) of the fan blade (18). After cleaning the leading edge (17) of the fan blade (18), the end of the leading edge clip (58) snaps together to securely hold the leading edge (17) of the fan blade (18). The resilience of the upper air guide (50) and the complementary cross sections with respect to the upper air guide (50) and the fan blade (18) can substantially prevent the upper air guide (50) from sliding along the fan blade length (18) during fan operation (10). That is, the resilient bias of the upper air guide (50) can increase the friction between the upper air guide (50) and the fan blade (18) once the upper air guide (50) has been installed on the blade the fan (18). Instead of or in addition to such a "pressure" adjustment, the upper air guide (50) can be attached to the fan blade (18) using adhesive, mechanical fasteners, and / or other suitable components, devices or techniques.
[0034] In another version, each upper air guide (50) is substantially rigid, and the base (54) is slid towards the fan blade end (18). For example, the upper air guide (50) can be slid towards the hub end of the fan blade (18) before the fan blade (18) is coupled with the hub (16). Alternatively, the upper air guide (50) can be slid to the free end of the fan blade (18) before the alula (20) is attached to the free end of the fan blade (18). Regardless of whether the upper air guide (50) is rigid or resilient, in some versions, removal of the upper air guide (50) can be accomplished by sliding the upper air guide (50) off the fan blade end (18 ). A resilient upper air guide (50) can alternatively be "depressurized" from the fan blade (18) in some configurations, such as suspending or peeling the leading edge clip (58) from the leading edge (58) 17) of the fan blade (18) or in any other suitable form.
[0035] In the present example, the upper inner surface of the base (54) has a profile that approximates the corresponding profile of the fan blade (18), so that the base (54) is substantially continuously engaged with the fan blade (18) along the transverse width of the fan blade (18). In addition, the vertical fin (52) has a profile that complements the profile of the fan blade (18). It should be understood, however, that the base (54) and the fin (52) can each have any other desired profile. Such alternative profiles may have any suitable relationship with, or no relationship with, each and / or the fan blade profile (18). For example, in the present example, the fin (52) is configured so that its vertical height from the base (54) is closer to the end of the leading edge clip (58) than the vertical height of the fin (52) ) from the base (54) near the end of the rail edge clip (56). That is, the fin (52) tapers down towards the end of the rail (19) of the fan blade (18). In other versions, the fin (52) is configured so that its vertical height from the base (54) is closer to the end of the rail edge clip (56) than the vertical height of the fin (52) from from the base (54) near the end of the leading edge clip (58). In other versions, the fin (52) can taper down towards the leading end (17) of the fan blade (18). Still other configurations suitable for the fin (52) will be apparent to those skilled in the art in view of the teachings shown here.
[0036] As shown, the base (54) ends at the ends of the clip (56, 58), so that a gap is defined between the ends of the clip (56, 58). In other versions, the ends of the clip (56, 58) are omitted, and the base (54) continuously defines an opening or slot for a fan blade (18) to be slid. Such an opening may have a cross section that complements the cross section of the fan blade (18) or any other suitable cross section. An example of such a configuration is described in more detail below with reference to figures 15 to 17.
[0037] As shown in figures 6 and 11-12, the leading edge clip end (58) is narrower than the trailing edge clip end (56). That is, the end of the rail edge clip (56) extends over a greater length of the fan blade (18) than the length of the fan blade (18) than the end of the leading edge clip (18). 58) extends. It should be understood, however, that the ends of the clip (56, 58) may alternatively be approximately the same width. Alternatively, the end of the leading edge clip (58) can be wider than the end of the leading edge clip (56).
[0038] As also shown, the fin (52) is positioned between the outer lateral wedding rings of the base (54). In other versions, the fin (52) is positioned on an outer lateral edge of the base (54). For example, the upper air guide (50) can be configured so that the flap (52) is positioned close to the hub (16), with the base (54) extending towards the alula (20), when the guide upper air (50) is installed on the fan blade (18). Alternatively, the fin (52) can be positioned so that it is positioned closer to the fin (20) when the upper air guide (50) is installed on the fan blade (18), with the base (54) extending towards the hub (16). As another merely exemplary variation, the fin (52) can extend at an angle. For example, the fin (52) can be tilted so that it is closer to the hub (16) close to the driving edge (17), even closer to the fin (20) close to the rail edge (19); or vice versa. Similarly, while the fin (52) defines a substantially straight angle with the base (54) in the present example, it should be understood that the fin (52) can alternatively define an acute or obtuse angle with the base (54). Still other suitable paths in which the fin (52) can be positioned and / or oriented will be apparent to those skilled in the art in view of the teachings mentioned here.
[0039] Each lower air guide (70) of the present example comprises a vertical flap (72) and a base (74). The base (74) is configured to allow the lower air guide (70) to be removably attached to the lower surface of a fan blade (18). In the present example, the vertical fin (72) and the base (74) are formed together as a single piece of resilient plastic material. For example, the fin (72) and the base (74) can be molded together. Alternatively, the fin (72) and the base (74) can be formed separately and then later joined using any suitable devices or techniques. Similarly, the fin (72) and the base (74) can be formed from any material or combination of desirable material (e.g., plastic base (74) with metal fin (72), etc.), and can have any properties in addition to or instead of having resilient properties.
[0040] In the present example, the resilience of the lower air guide (70) allows it to be broken in the fan blade (18). In particular, the resilience of the material allows the base (74) to deform to pass over the edge of the fan blade (18) and then return to its original shape to lock in place. As best shown in figures 13 and 14, the base (74) has clip ends (76, 78) that provide a comfortable fit against the leading and trailing edges (19, 17) of the fan blade (18). In a purely exemplary method of attaching the lower air guide (70) to the fan blade, the end of the rail edge clip (76) is first engaged with the rail edge (19) of the fan blade (18). The lower air guide (70) is then rotated towards the leading edge (17) of the fan blade (18) until the leading edge clip (78) deforms away from the leading edge (17) to clean the edge and guide (17) of the fan blade (18). After cleaning the leading edge (17) of the fan blade (18), the end of the leading edge clip (78) snaps together to securely attach the leading edge (17) of the fan blade (18) . The resilience of the lower air guide (70) and the corresponding complementary cross sections of the lower air guide (70) and the fan blade (18) can substantially prevent the lower air guide (70) from slipping along the length fan blade (18) while the fan is running (10). That is, the resilient bias of the lower air guide (70) can increase the friction between the lower air guide (70) and the fan blade (18) once the lower air guide (70) has been installed on the blade the fan (18). Instead of or in addition to such a "pressure" adjustment, the lower air guide (70) can be attached to the fan blade (18) using adhesive, mechanical fasteners, and / or any other suitable components, devices or techniques.
[0041] In another version, each lower air guide (70) is substantially rigid, and the base (74) slides towards the fan blade end (18). For example, the lower air guide (70) can slide towards the hub end of the fan blade (18) before the fan blade (18) is coupled to the hub (16). Alternatively, the lower air guide (70) can slide towards the free end of the fan blade (18). Regardless of whether the lower air guide (70) is rigid or resilient, in some versions, removal of the lower air guide (70) can be accomplished by sliding the lower air guide (70) out of the fan blade end ( 18). A resilient lower air guide (70) can alternatively be "depressurized" from the fan blade (18) in some configurations, such as suspending or peeling the leading edge clip from the leading edge (78) from the leading edge (17) of the fan blade (18) or in any other suitable form.
[0042] In the present example, the inner surface of the base (74) has a profile that approximates the corresponding profile of the fan blade (18), so that the base (74) is substantially continuously engaged with the fan blade ( 18) along the transverse width of the fan blade (18). In addition, the vertical fin (72) has a profile that complements the profile of the fan blade (18). It should be understood, however, that the base (74) and the fin (72) can each have any desired profile. Such alternative profiles may have any suitable relationship with, or no relationship with, each and / or the fan blade profile (18). For example, in the present example, the fin (72) is configured so that its vertical height (74) is closer to the end of the leading edge clip (78) than the vertical height of the fin (72) from the base (74) near the end of the rail edge clip (76). That is, the fin (72) tapers down towards the rail edge (18) of the fan blade (18). In some versions, the fin (72) is configured so that its vertical height from the base (74) is greater near the end of the rail edge clip (76) than the vertical height of the fin (72) from from the base (74) near the end of the leading edge clip (78). In some versions, the fin (72) may taper downwards towards the leading edge (17) of the fan blade (18). Still other configurations suitable for the fin (72) will be apparent to those skilled in the art in view of the teachings mentioned here.
[0043] As shown, the base (74) ends at the ends of the clip (76, 78), so that the gap is defined between the ends of the clip (76, 78). In other versions, the ends of the clip (76, 78) are omitted, and the base (74) continuously defines an opening or slot for a fan blade (18) to be slid. Such an opening may have a cross section that complements the cross section of the fan blade (18) or any other suitable cross section.
[0044] As also shown, the fin (72) extends downwards from the outer lateral edge of the base (74). In some versions, the lower air guide (70) is installed on the fan blade (18) so that the flap (72) is positioned close to the hub (16), with the base (74) extending towards the alula (20). Alternatively, the fin (72) can be positioned so that it is positioned close to the alula (20) when the lower air guide (70) is installed on the fan blade (18), with the base (74) extending towards to the cube (16). In other versions, the fin (72) is positioned at the center of the base width (74), or otherwise between the outer edges of the base (74). As another merely exemplary variation, the fin (72) can extend at an angle. For example, the fin (72) can be tilted so that it is close to the hub (16) close to the driving edge (17) yet close to the fin (20) close to the rail edge (19); or vice versa. Similarly, while the fin (72) defines a substantially straight angle with the base (74) in the present example, it should be understood that the fin (72) can alternatively define an acute or obtuse angle with the base (74). Still other suitable ways in which the fin (72) can be positioned and / or oriented will be apparent to those skilled in the art in view of the teachings mentioned herein.
[0045] In some fan versions (10), only the upper air guides (50) are provided; and the lower air guides (70) are omitted completely. In other fan versions (10), the upper air guides (50) and the lower air guides (70) are provided. In other fan versions (10), only the lower air guides (70) are provided; and the upper air guides (50) are omitted completely. In versions where the upper air guides (50) and the lower air guides (70) are provided, it should be understood that the upper and lower air guides (50, 70) can be kept separate, can be formed together, they can be locked together after installation on the fan blade (18), or have any other suitable relationship between them.
[0046] An exemplary alternative air guide (100) is shown in figures 15 to 17. In this example, the air guide (100) comprises a body (102) defining an opening (104) and having a fin that extends to low (106). The body (102) is formed as a single piece, unique in this example. The opening (104) is measured to complement the cross configuration of a fan blade (18). Consequently, the air guide (100) can be coupled with a fan blade (18) by inserting a free end of the fan blade (18) through the opening (104) and then slide the air guide (100) along the fan blade length (18) until the air guide (100) has reached the desired position along the fan blade length (18). With the air guide (100) thus positioned, the body (102) can completely surround the outside of the fan blade profile (18). It should be understood that the air guide (100) can slide towards the hub end of the fan blade (18) before the fan blade (18) is coupled to the hub (16). Alternatively, the air guide (100) can slide to the free end of the fan blade (18) before the hull (20) is attached to the free end of the fan blade (18).
[0047] After the fan blade (18) has been inserted through the opening (104), the position of the air guide (100) along the length of the fan blade (18) can thus be substantially maintained in a plurality of forms. For example, the body (102) can be configured so that the size of the opening (104) is slightly smaller than the cross section size of the fan blade (18), so that the fit between the air guide (100 ) and the fan blade (18) is an interference fit. In addition or as an alternative, the interior of the opening (104) can be at least partially aligned with an elastomeric material and / or provided with other types of surface / feature that increase friction to facilitate the tightening of the fan blade (18 ) through the air guide (100). As another merely illustrative variation, adhesives, clips, clamps, screws, nuts and / or any other suitable structures, devices or techniques can be used to substantially maintain the position of the air guide (100) along the length of the fan blade ( 18).
[0048] While the fin (106) extends downwardly from the lower surface (108) of the body (102) in the present example, it should be understood that the fin (106) may instead extend to trim upwards from the upper surface (110) of the body (102), if desired. It should also be understood that, while the fin (106) is positioned between the lateral edges of the body (102) in the present example, the fin (106) can instead be positioned on the lateral edge of the body (102). Similarly, while the fin (106) is oriented substantially perpendicular to the bottom surface (108), the fin (106) can instead be oriented obliquely to the bottom surface (108). Still other suitable configurations, flap positions and orientations (106) will be apparent to those skilled in the art in view of the teachings mentioned here. Likewise, other components, characteristics, configurations and operability of the air guide (100) will be apparent to those skilled in the art in view of the teachings mentioned here.
[0049] While the fins (52, 72, 106) are shown to be generally formed from two sides and one edge, given fins (52, 72, 106) a thin, flat, plate-like profile, it should be understood that the fins (52, 72, 106) can have several other configurations, including, but not limited to, having rounded sides / faces, a wedge shape, etc.
[0050] It should be understood that, like the air guides (50, 70), the air guide (100) can be coupled with any suitable fan blade, including, but not limited to, any fan blade as described in any of the references that are cited and incorporated here by reference. As an example only, the air guide (70) can be used with any of the fan blades described in US Publication No. 2010/0104461, entitled "Multi-Part Modular Airfoil Section and Method of Attachment between Parts," published on April 29, 2010, the description of which is incorporated herein by reference. Other suitable ways in which the air guides (50, 70, 100) can be used will be apparent to those skilled in the technique of the teachings here.
[0051] In the present example, each air guide (50, 70, 100) is provided as a removable accessory for a fan blade (18). However, the air guides (50, 70, 100) can alternatively be supplied as a non-removable component, integral with a fan blade (18). For example, a fan blade (18) can be formed with one or more unitary air guides (50, 70, 100) extending from that point. Having shown and described various embodiments of the present invention, further adaptations of the methods and systems described herein can be made by appropriate modifications by one of ordinary skill in the art without departing from the scope of the present invention. Several of the potential modifications have been mentioned, and others will be apparent to those skilled in the art. For example, the examples, modalities, geometries, materials, dimensions, ratios, steps, and the like discussed above are illustrative and not required. Consequently, the scope of the present invention should be considered in terms of the following claims and it is understood that it is not limited to the details of the structure and operation shown and described in the specification and drawings.

权利要求:
Claims (18)
[0001]
1. Fan, characterized by the fact that it comprises: (a) a rotating hub; (b) a plurality of fan blades, each fan blade having: (i) an upper surface, (ii) a lower surface, (iii) a first end attached to the hub, (iv) a second end, (v) a leading edge, and (vi) a trailing edge; and (c) a plurality of air guides, wherein each air guide comprises a flap and an engaging portion of the fan blade and is attached to a corresponding fan blade of the plurality of fan blades at a location between the first end and second end of the corresponding fan blade, and in which the engagement portion of the fan blade defines an opening, in which the corresponding fan blade is arranged through the opening.
[0002]
2. Fan, according to claim 1, characterized by the fact that the fin of at least some of the air guides extends downwards with respect to the bottom surface of the corresponding fan blades.
[0003]
3. Fan according to claim 2, characterized by the fact that each air guide still comprises a base, in which the bottom surface of each fan blade has an outline, in which the base substantially complements the outline of the lower surface corresponding fan blade.
[0004]
4. Fan according to claim 1, characterized in that the engagement portion of the fan blade comprises a pair of clip ends.
[0005]
5. Fan according to claim 4, characterized by the fact that the pair of clip ends comprises one end of the leading edge clip and one end of the rail edge clip, wherein the end of the leading edge clip conduction is configured to engage the leading edge of the corresponding fan blade, where the clip end of the rail edge is configured to engage the trailing edge of the corresponding fan blade.
[0006]
6. Fan according to claim 5, characterized by the fact that each air guide defines a gap spanning between the end of the leading edge clip and the end of the rail edge clip.
[0007]
7. Fan, according to claim 6, characterized by the fact that each air guide is formed of a resilient material, allowing the gap size to be changed by bending the air guide.
[0008]
8. Fan, according to claim 1, characterized by the fact that the fin tapers through the rail edge of the corresponding fan blade.
[0009]
9. Fan, according to claim 1, characterized by the fact that the fan blades extend along a horizontal plane and in which the fins extend substantially vertically.
[0010]
10. Fan, according to claim 1, characterized by the fact that each fan blade has a peripheral profile defined by the corresponding upper surface, lower surface, leading edge, and rail edge, in which the coupling portion of the blade of the fan completely surrounds the periphery of the corresponding fan blade profile.
[0011]
11. Fan, according to claim 1, characterized by the fact that each air guide is coupled with the corresponding fan blade by a pressure adjustment.
[0012]
12. Fan, according to claim 1, characterized by the fact that each air guide is configured to resiliently tighten the corresponding fan blade.
[0013]
13. Fan according to claim 1, characterized by the fact that each air guide comprises: (i) a body having a front region associated with the leading edge of the corresponding fan blade, a rear region associated with the edge of the corresponding fan blade rail, and a pair of side edges extending between the front and rear regions, and (ii) the fin extending from one of the side edges.
[0014]
14. Fan, according to claim 1, characterized by the fact that each fan blade defines an airfoil shape.
[0015]
15. Fan, according to claim 14, characterized by the fact that each air guide is configured to complement the aerofoil shape of the corresponding fan blade.
[0016]
16. Fan, according to claim 1, characterized by the fact that each fan blade has more than one fixed air guide of the plurality of air guides.
[0017]
17. Air guide, characterized by the fact that it comprises: (a) a body, the body comprising: (i) an upper surface, where the upper surface is configured to complement a lower surface of a fan blade in the form of airfoil, (ii) a bottom surface, (iii) a leading edge hitch portion configured to engage the airfoil fan blade leading edge, and (iv) a trailing edge hitch portion configured for engaging an airfoil-shaped fan blade rail edge; and (b) a fin extending downwardly from the lower body surface.
[0018]
18. Air guide, characterized by the fact that it comprises: (a) a body, the body comprising an upper surface and a lower surface, wherein the body defines an opening comprising a first open end and the second open end, said opening formed to complement an airfoil shape of a fan blade for arranging the fan blade through the first open end and the second open end of the opening; and (b) a fin extending downwardly from the lower body surface.

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同族专利:

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CN102549237A|2012-07-04|

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US20110081246A1|2011-04-07|

WO2011041220A1|2011-04-07|

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法律状态:
2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|

2019-10-01| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|

2020-06-02| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|

2020-11-03| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 03/11/2020, OBSERVADAS AS CONDICOES LEGAIS. |

2021-12-14| B25D| Requested change of name of applicant approved|Owner name: DELTA T, LLC (US) |

2021-12-21| B25G| Requested change of headquarter approved|Owner name: DELTA T, LLC (US) |

优先权:

申请号 | 申请日 | 专利标题

US24815809P| true| 2009-10-02|2009-10-02|

US61/248,158|2009-10-02|

PCT/US2010/050125|WO2011041220A1|2009-10-02|2010-09-24|Air fence for fan blade|

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