• 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:
    A backup wind turbine having: a support module having an outer housing enclosing a first internal chamber; a generator housing operably connected to the support module, the generator housing having an outer surface enclosing a second internal chamber, wherein the second internal chamber is fluidly connected to the first internal chamber; a turbine module connected to the support module, the operating turbine module rotates in the free air flow; and a current generating device mechanically connected to the turbine module and located in the second internal chamber, the current producing device in operation produces current when the turbine module rotates. The support module includes a first screen portion having a plurality of input holes integrally formed in the outer housing. The generator housing includes a second screen portion having a plurality of exit holes integrally formed in the outer surface. Free air flow passes through the inlet holes, above the current producing device, and out of the exit holes.
    公开号:FR3052196A1
    申请号:FR1754992
    申请日:2017-06-06
    公开日:2017-12-08
    发明作者:Steven Michael Bortoli；David Everett Russ
    申请人:Hamilton Sundstrand Corp；
    IPC主号:
    专利说明:

    INTEGRATED RAT GENERATOR COOLING HOLES
    BACKGROUND The subject matter of the invention disclosed herein generally relates to emergency wind turbine actuators and more specifically to an apparatus and method used for removing heat from an emergency wind turbine generator (RAT).
    RATs are commonly used in modern aircraft to provide a secondary and / or emergency power source in case of a failure or failure of the main power source. A typical RAT includes a turbine that remains inside the aircraft until it is used. If additional power is needed, a hatch in the aircraft fuselage will open and the actuator will deploy the RAT turbine into the free air stream. The free air flow will turn the turbine and the rotational power of the turbine is transferred through a transmission and converted into electric current by a current generating device (eg, an electric generator) .A RAT can also be used to drive a hydraulic pump.
    The current generating device may produce an excess of heat which must be removed from the RAT. ABSTRACT
    According to one embodiment, an emergency wind turbine is described. The spare wind turbine having: a support module having an outer housing enclosing a first internal chamber; a generator housing operably connected to the support module, the generator housing having an outer surface enclosing a second internal chamber, wherein the second internal chamber is fluidly connected to the first internal chamber; a turbine module operatively connected to the support module, the operating turbine module rotates in the free air flow; and a current generating device mechanically connected to the turbine module and located in the second internal chamber, the current producing device in operation produces current when the turbine module rotates. The support module includes a first screen portion having a plurality of input holes integrally formed in the outer housing. The first screen portion in operation allows the free air flow to enter the outer housing through the plurality of inlet holes and pass over the current producing device. The generator housing includes a second screen portion having a plurality of exit holes integrally formed in the outer surface. The second screen portion in operation allows the free airflow to exit the generator housing after it has passed over the current generating device.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the standby wind turbine may include the fact that each of the plurality of entrance holes has a smaller diameter. to about 0.714 cm (0.281 in.).
    In addition to one or more of the features described above, or as an alternative, other embodiments of the standby wind turbine may include the fact that each of the plurality of exit holes has a diameter less than approximately 0.714 cm (0.281 in.).
    In addition to one or more of the features described above, or as an alternative, other embodiments of the emergency wind turbine may include the fact that the plurality of input holes is oriented in a pattern of staggered hole.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the emergency wind turbine may include the fact that the plurality of exit holes is oriented in a hole pattern. in a staggered arrangement.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the standby wind turbine may include that the plurality of input holes is segmented into three distinct groups. . The groups being separated from each other by structural stress paths of the outer housing.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the backup wind turbine may include that the plurality of exit holes is segmented into six distinct groups. The groups being separated from one another by structural stress paths of the generator housing.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the wind turbine may include the fact that the outer housing at the first screen portion has a variable thickness. The thickness of the outer housing being the lowest at a central point of the first screen portion and increases in thickness ciconferentially outwardly from the central point.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the standby wind turbine may include the fact that a ratio of a surface of the plurality entrance to a surface of the first screen portion is less than about 0.6.
    According to another embodiment, a method of manufacturing an emergency wind turbine is described. The method comprises the steps of: forming an outer housing of a support module, the outer housing enclosing a first internal chamber; connecting in operation a turbine module to the support module, the operating turbine module rotates in the free air flow; forming a generator housing having an outer surface enclosing a second internal chamber; installing a current producing device in the second internal chamber, the current generating device in operation produces a current when the turbine module rotates; the operating connection of the support module to the generator housing, the second internal chamber being fluidly connected to the first internal chamber; and the mechanical connection of the current generating device to the turbine module. The support module includes a first screen portion having a plurality of input holes integrally formed in the outer housing. The first screen portion in operation allows the free air flow to enter the outer housing through the plurality of inlet holes and pass over the current producing device. The generator housing includes a second screen portion having a plurality of exit holes integrally formed in the outer surface. The second screen portion in operation allows the free airflow to exit the generator housing after it has passed over the current generating device.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the manufacturing method may include that each of the plurality of input holes has a diameter of less than about 0.714 cm (0.281 in.).
    In addition to one or more of the features described above, or as an alternative, other embodiments of the manufacturing method may include that each of the plurality of exit holes has a diameter of less than about 0.714. cm (0.281 in.).
    In addition to one or more of the features described above, or as an alternative, other embodiments of the manufacturing method may include the fact that the plurality of the entrance holes is oriented in a hole pattern. staggered.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the manufacturing method may include that the plurality of exit holes are oriented in a staggered hole pattern. .
    In addition to one or more of the features described above, or as an alternative, other embodiments of the manufacturing method may include that the plurality of input holes is segmented into three distinct groups, the groups being separated from each other by structural stress paths of the outer housing.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the manufacturing method may include the fact that the plurality of exit holes is segmented into six distinct groups, the groups being separated from each other by structural stress paths of the generator housing.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the manufacturing method may include the fact that the outer housing at the first screen portion has a thickness variable, the thickness of the outer housing being the lowest at a central point of the first screen portion and increases in thickness circumferentially outwardly from the central point.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the manufacturing method may include the fact that a ratio of a surface of the plurality of entrance holes on a surface of the first screen portion is less than about 0.6.
    In another embodiment, a method of cooling a power generating device of a standby wind turbine is described. The method has the following steps: allowing a free air stream to enter the outer housing of the support module through a plurality of inlet holes integrally formed in the outer housing; passing the free air stream over the current producing device inside a generator housing, the generator housing being fluidly connected to the outer housing; and allowing the free air stream of the generator housing to exit through a plurality of exit holes integrally formed in an outer surface of the generator housing.
    In addition to one or more of the features described above, or as an alternative, other embodiments of the cooling method of a current producing device may include the fact that each of The inlet has a diameter of less than about 0.714 cm (0.281 in.).
    The technical effects of the embodiments of the present disclosure include integrated screens that allow the removal of heat from a power generating device of a standby wind turbine, while adding additional structural rigidity to prevent the occurrence of a structural resonance at a self-induced frequency and the reduction of the manufacturing cost.
    The above features and elements may be combined in various non-exclusive combinations, except where expressly stated otherwise. These features and elements, as well as the operation thereof, will become more apparent in light of the following description and accompanying drawings. However, it should be understood that the following description and drawings are illustrative and exemplary and not limiting.
    BRIEF DESCRIPTION OF THE DRAWINGS The object of the invention is particularly described and distinctly claimed in the claims according to the specifications. The foregoing and other features and advantages of the present disclosure appear from the following detailed description taken in conjunction with the following accompanying drawings, in which:
    Fig. 1 is a perspective view of an aircraft that can incorporate the embodiments of the present disclosure;
    Fig. 2 is a perspective view of an emergency wind turbine module (RAT) according to an embodiment of the present disclosure;
    Fig. 3 is a cross-sectional side view of a RAT module of Fig. 2, according to an embodiment of the present disclosure;
    Fig. 4 is a top view of a generator housing of the RAT module of Fig. 2, according to an embodiment of the present disclosure;
    Fig. 5 is a schematic illustration of the generator housing of the RAT module of Fig. 2, according to an embodiment of the present disclosure;
    Fig. 6 is a view of the first screen portion of the RAT module of Fig. 2, according to an embodiment of the present disclosure;
    Fig. 7 is a cross-sectional side view of the first screen portion of Fig. 6, according to an embodiment of the present disclosure;
    Fig. 8 is a schematic view of the first screen portion of the RAT module of Fig. 2, according to an embodiment of the present disclosure; and
    Fig. 9 is a process flow illustrating a method of manufacturing the RAT module of Fig. 2 according to one embodiment of the present disclosure.
    The detailed description explains the embodiments of the present disclosure, with the advantages and features, as an example with reference to the drawings.
    DETAILED DESCRIPTION
    Referring now to FIG. 1, which illustrates a perspective view of an aircraft 2 that can incorporate the embodiments of the present disclosure. The aircraft 2 comprises a fuselage 4 extending from a nose portion 6 to a tail portion 8 through a body portion 10. The body portion 10 encloses an aircraft cabin 14 which includes a compartment for the Crew 15 and a passenger compartment 16. The body portion 10 supports a first wing 17 and a second wing 18. The first wing 17 extends from a first root portion 20 to a first tip portion 21 through a first wing part 23. The first wing part 23 comprises a leading edge 25 and a trailing edge 26. The second wing 18 extends from a second root portion (not shown) to a second tip portion 31 to through a second wing portion 33. The second wing portion 33 includes a leading edge 35 and a trailing edge 36. The tail portion 8 includes a stabilizer 38. The aircraft 2 comprises a wind turbine module (RAT) 40 mounted in the fuselage 4, in the nose part 6 or in the wings 17, 18. In case of need of additional electrical and / or hydraulic power, a hatch 54 in the fuselage of the aircraft will open and an actuator (not shown) will act to deploy the RAT module 40 in the free air flow 100a.
    Referring now to Figures 2 to 3, various embodiments of the present invention are illustrated. Fig. 2 is a perspective view of an emergency wind turbine module (RAT) 40, according to an embodiment of the present disclosure. Figure 3 illustrates a cross-sectional side view of a RAT module 40 of Figure 2, according to an embodiment of the present disclosure. As shown in FIG. 2, the RAT module 40 may comprise a turbine module 42, a transmission module 44, a support module 48 and a generator module 45. The generator module 45 comprises a generator housing 46. having an outer surface 47 enclosing a second inner chamber 404 and a current generating device 50 disposed within the second inner chamber 404. The current generating device 50 may be an electric generator, a hydraulic pump or a both an electric generator and a hydraulic pump. As the turbine module 42 rotates, the rotational torque is transferred from the turbine module 42, through the gearbox module 44, to a transmission shaft 60 in the support module 48, and then to the production device 48. current 50.
    The support module 48 is operatively connected to the generator housing 46, as shown in FIGS. 2 and 3. The support module 48 includes an outer housing 49 enclosing a first internal chamber 604. The first internal chamber 604 is fluidly connected to the second internal chamber 404.
    The support module 48 includes a first screen portion 600 having a plurality of inlet holes 602 integrally formed in the outer housing 49. The first screen portion 600 in operation allows the free air flow 100a to enter. in the outer housing 49 through the plurality of inlet holes 602. After entering the outer housing 49, the free air flow will move from the first inner chamber 604 to the second inner chamber 404 and pass above the current producing device in the second internal chamber 404. The free air flow 100a which passes over the current generating device 50 cools the current producing device 50 by removing the heat.
    The generator housing 46 includes a second screen portion 400 having a plurality of exit holes 402 integrally formed in the outer surface 47. The second screen portion 400 in operation allows the free airflow 100a to exit the housing. of generator 46 after it has passed above the current producing device 50.
    Referring now to Figures 4 to 5, various embodiments of the present invention are illustrated. Fig. 4 illustrates a top view of a generator housing 46 of the RAT module 40 of Fig. 2, according to one embodiment of the present disclosure. Fig. 5 is a schematic illustration of the generator housing 46 of the RAT module 40 of Fig. 2, according to one embodiment of the present disclosure. In one embodiment, the plurality of exit holes 402 are oriented in a staggered hole pattern, as shown in FIGS. 4 through 5. Advantageously, a staggered hole pattern allows the maximum number of circular holes in a given surface, which, in turn, increases the flow of air through such holes. Also advantageously, a staggered hole pattern adds structural rigidity in the event of twisting. In one embodiment, there is at least about 0.178 cm (0.07 in.) Between each of the plurality of exit holes 402.Also, in one embodiment, the plurality of exit holes 402 is segmented. in six distinct groups 410, 420, 430, 440, 450, 460, as shown in FIG. 5. In another embodiment, the groups 410, 420, 430, 440, 450, and 460 are separated from one another by Structural stress paths, LP, of the generator housing 46. In yet another embodiment, each of the plurality of exit holes 402 may have a DI diameter of less than about 0.714 cm (0.281 in.). In another embodiment, a ratio of a surface of the plurality of exit holes 402 to a surface of the second screen portion 400 is less than about 0.6. The surface of the second screen portion 400 groups the surface of the six distinct groups 410, 420, 430, 440, 450, 460.
    Referring now to Figures 6-8, various embodiments of the present disclosure are illustrated. Fig. 6 is a view of the first screen portion 600 of the RAT module 40 of Fig. 2, in accordance with an embodiment of the present disclosure. Fig. 7 illustrates a cross-sectional side view of the first screen portion 600 of Fig. 6, in accordance with an embodiment of the present disclosure. Fig. 8 is a schematic view of a first screen portion 600 of the RAT module 40 of Fig. 2, according to an embodiment of the present disclosure.
    In one embodiment, the plurality of inlet holes 602 is oriented in a staggered hole pattern, as shown in FIGS. 5 to 8. Advantageously, a staggered hole pattern allows the maximum number of circular holes. in a given area, which, in turn, increases the flow of air through such holes. In one embodiment, there is at least about 0.187 cm (0.07 in.) Between each of the plurality of input holes 602. In another embodiment, the plurality of input holes 602 is segmented. in three distinct groups 610, 620, 630, as shown in FIGS. 7 to 8. In another embodiment, the groups 610, 620, 630 are separated from each other by structural stress paths, LP, of the housing 49 yet another embodiment, each of the plurality of inlet holes 602 may have a diameter D2 of less than about 0.714 cm (0.281 in.). In another embodiment, a ratio of one of the plurality of inlet holes 602 to a surface of the first screen portion 600 is less than about 0.6. The surface of the first screen portion 600 groups the surface of the three distinct groups 610, 620, 630. In one embodiment, the inlet holes 602 are oriented more or less parallel to the free air flow 100a. Advantageously, the orientation of the inlet holes parallel to the free air flow allows a maximum air flow through the holes.
    Furthermore, in one embodiment the outer housing 49 at the first screen portion 600 may have a variable thickness, as shown in Figure 7. The thickness D3 of the outer housing 49 being the lowest at the level of a center point 608 of the first screen portion 600 and increases in thickness D4, D5 circumferentially outwardly from the center point 608, as shown in Fig. 7. In one embodiment, the groups 610, 620 630, 620, 630 can be flat on the outer diameter 670 of the outer housing 49 and conical on the inner diameter 680 of the outer housing 49, as shown in FIG. Advantageously, having a flat outer diameter surface and a conical inner diameter surface helps to reduce stress on holes near the perimeter of a group of holes since the screen holes close to the edges also have the largest wall thickness to reduce stress. But also, advantageously, when the ratio ((length of the inlet hole) / (diameter of the inlet hole)) increases to a value of 1, the flow of air through the inlet hole also increases . The length of the entrance hole is the same as the thickness of the first screen part. Thus, advantageously, the thinnest screen portion does not tend to increase the airflow and the thicker screen portions can be used to increase both airflow and stiffness. structural.
    In addition, advantageously, the integrated screens allow the removal of heat from the current generating device of a RAT, while increasing the structural rigidity to prevent the occurrence of structural resonance at a self-induced frequency. Also, advantageously, the integrated screens provide a cost reduction by reducing the need to manufacture and fix separate screens to the RAT module.
    Referring now to FIG. 9 while referring to the components of the RAT module 40 of FIGS. 2 to 8. FIG. 9 illustrates a process flow illustrating a method 900 for manufacturing the RAT module 40 of FIG. of the block 904, the outer housing 49 of the support module 48 is formed. The outer housing 49 encloses the inner chamber 604, as shown in FIG. 3. The support module 48 also includes a first screen portion 600 having a plurality of inlet holes 602 integrally formed in the outer housing 49, such as the FIGS. 1, 2 and 6 to 8 show the first operating screen portion 600 to allow the free air flow 100a to enter the outer housing 49 through the plurality of the inlet holes 602 and to proceed to above the current generating device 50. The inlet holes 602 may be formed by a variety of methods including, but not limited to, etching, drilling, machining, water and the high pressure laser. In one embodiment, the inlet holes 602 are drilled more or less parallel to the free air flow 100a. At block 906, a turbine module 42 is operatively connected to the support module 48. The turbine module 42, in operation, rotates in the free air stream 100a.
    At block 908, a generator housing 46 is formed. The generator housing 46 includes the outer surface 47 enclosing the second internal chamber 404, as shown in FIG. 3. The generator housing 46 includes the second screen portion 400 having the plurality of exit holes 402 integrally formed in the surface 47, as shown in FIGS. 2 to 5. The second screen part 402 in operation allows the free air flow 100b to exit the generator housing 46 after it has passed over the production device. The output holes 402 may be formed by a variety of methods including, but not limited to, etching, drilling, machining, water and the high pressure laser.
    At block 910, the power generating device 50 is installed in the second internal chamber 404. The current generating device 50 in operation generates a current when the turbine module 42 rotates. At block 912, the support module 48 is operably connected to the generator housing 46 such that the second internal chamber 404 is fluidly connected to the first internal chamber 604. At the level of the block 914, the current 50 is mechanically connected to the turbine module 42.
    While the foregoing description has described the flow method of Fig. 9 in a given order, it will be understood that, unless otherwise indicated in the appended claims, the order of the steps can be varied.
    While the present disclosure has been described in detail in connection with only a limited number of embodiments, it should be readily understood that the present disclosure is not limited to such disclosed embodiments. Instead, the present disclosure may be modified to incorporate any number of variations, alterations, substitutions, combinations, subcombinations, or equivalent arrangements not previously described herein, but which are consistent with the scope of this disclosure. In addition, while various embodiments of the present disclosure have been described, it will be understood that aspects of the present disclosure may include only some of the described embodiments. Therefore, the present disclosure should not be construed as limiting the foregoing description, which is limited only by the scope of the appended claims.
    权利要求:
    Claims (15)
    [1" id="c-fr-0001]
    CLAIMS: What is claimed:
    A backup wind turbine, comprising: a support module having an outer housing enclosing a first internal chamber; a generator housing operably connected to the support module, the generator housing having an outer surface enclosing a second internal chamber, wherein the second internal chamber is fluidly connected to the first internal chamber; a turbine module operatively connected to the support module, the operating turbine module rotates in the free air flow; and a current generating device mechanically connected to the turbine module and placed inside the second internal chamber, the current generating device in operation generates a current when the turbine module rotates, wherein the support module comprises a first screen portion having a plurality of inlet holes integrally formed in the outer housing, the first screen portion in operation allows the free air flow to enter the outer housing through the plurality of holes; entering and passing over the current generating device, wherein the generator housing comprises a second screen portion having a plurality of exit holes integrally formed in the outer surface, the second screen portion in operation allows the free air flow to exit the generator housing after it has passed over the current generating device.
    [2" id="c-fr-0002]
    The backup wind turbine of claim 1, wherein: each of the plurality of inlet holes has a diameter of less than about 0.714 cm (0.281 in.).
    [3" id="c-fr-0003]
    The backup wind turbine of claim 1, wherein: each of the plurality of exit holes has a diameter less than about 0.714 cm (0.281 in.).
    [4" id="c-fr-0004]
    The backup wind turbine of claim 1, wherein: the plurality of inlet holes are oriented in a staggered hole pattern.
    [5" id="c-fr-0005]
    The backup wind turbine of claim 1, wherein: the plurality of exit holes are oriented in a staggered hole pattern.
    [6" id="c-fr-0006]
    The backup wind turbine of claim 1, wherein: the plurality of inlet holes is segmented into three distinct groups, the groups being separated from each other by structural stress paths of the outer housing.
    [7" id="c-fr-0007]
    The backup wind turbine of claim 1, wherein: the plurality of exit holes is segmented into six distinct groups, the groups being separated from each other by structural stress paths of the generator housing.
    [8" id="c-fr-0008]
    8. Emergency wind turbine of claim 6, wherein: the outer housing at the first screen portion has a variable thickness, the thickness of the outer housing being the lowest at a central point of the first screen portion and increases in thickness ciconferentially outwardly from the central point.
    [9" id="c-fr-0009]
    The backup wind turbine of claim 6, wherein: a ratio of one of the plurality of entrance holes to a surface of the first screen portion is less than about 0.6.
    [10" id="c-fr-0010]
    10. A method of manufacturing an emergency wind turbine, comprising: forming an outer housing of a support module, the outer housing enclosing a first inner chamber; the functional connection of a turbine module to the support module, the operating turbine module rotates in the free air flow; forming a generator housing having an outer surface enclosing a second internal chamber; installing a current producing device in the second internal chamber, the current generating device in operation generates a current when the turbine module rotates; the functional connection of the support module to the generator housing, the second internal chamber being fluidly connected to the first internal chamber; and the mechanical connection of the power generating device to the turbine module, wherein the support module comprises a first screen portion having a plurality of input holes integrally formed in the outer housing, the first screen portion operation allows the free air flow to enter the outer housing through the plurality of inlet holes and pass over the current producing device, wherein the generator housing comprises a second screen portion having a plurality of exit holes integrally formed in the outer surface, the second screen portion in operation allows the free airflow to exit the generator housing after it has passed over the current generating device .
    [11" id="c-fr-0011]
    The method of claim 10, wherein: each of the plurality of inlet holes has a diameter less than about 0.714 cm (0.281 in.).
    [12" id="c-fr-0012]
    The method of claim 10, wherein: each of the plurality of exit holes has a diameter less than about 0.714 cm (0.281 in.).
    [13" id="c-fr-0013]
    The method of claim 10, wherein: the plurality of input holes is oriented in a staggered hole pattern.
    [14" id="c-fr-0014]
    The method of claim 10, wherein: the plurality of exit holes are oriented in a staggered hole pattern.
    [15" id="c-fr-0015]
    The method of claim 10, wherein: the plurality of input holes is segmented into three distinct groups, the groups being separated from one another by structural stress paths of the outer housing.
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    法律状态:
    2018-05-22| PLFP| Fee payment|Year of fee payment: 2 |
    2019-05-22| PLFP| Fee payment|Year of fee payment: 3 |
    2020-05-20| PLFP| Fee payment|Year of fee payment: 4 |
    2021-05-19| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    US15/174,479|US10077118B2|2016-06-06|2016-06-06|Integral rat generator cooling holes|
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