An air extraction adapter ring for the AIP interface of a turbine engine inlet duct

Abstract

The present invention discloses an air extraction adapter ring for the AIP interface of a turbine engine intake duct, which includes a housing located at the AIP interface of the engine intake port, a channel air extraction hole, and a plurality of boundary layer air extraction holes. Both ends of the housing are open. One end of the housing abuts against the engine intake duct, and the other end of the housing is connected to the engine; the channel air extraction hole is arranged on the wall surface of the housing, and the gas flowing out through the channel air extraction hole is led out to dissipate heat for equipment with heat dissipation requirements; the boundary layer air extraction hole is arranged on the wall surface of the housing, and the gas flowing out through the boundary layer air extraction hole dissipates heat for the interior of the engine. The structure of the present invention is simple and easy to install and disassemble; the combined use of the boundary layer air extraction hole and the channel air extraction hole ensures that the cooling and pressurization of various types of equipment can be satisfied simultaneously; the adapter ring can be used for air extraction of different types of turbine engine intake ducts through simple adjustment, and has strong versatility.

Description

Technical Field

[0001] The present invention relates to the technical field of engine intake air duct air extraction structures, and in particular to an air extraction adapter ring for the AIP interface of a turbine engine intake air duct. Background Art

[0002] During the operation of a turbine engine, it is often necessary to provide air extraction for various devices such as controllers on the aircraft for cooling, pressurization, etc. The available air extraction sources include in front of the engine fan, behind the engine fan, behind the engine compressor, and behind the engine turbine. Air extraction in front of the engine fan, behind the engine fan, and behind the engine compressor will cause significant pressure losses and air flow losses in the engine fan and compressor, resulting in pressure distortion, and there is great uncertainty about whether the fan and compressor can operate stably. The air extraction temperature behind the engine turbine is too high and it is difficult to be used for cooling and pressurization. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to some extent.

[0004] To this end, an embodiment of the present invention provides an air extraction adapter ring for the AIP interface of a turbine engine intake air duct.

[0005] The present invention provides an air extraction adapter ring for the AIP interface of a turbine engine intake air duct, comprising:

[0006] A housing located at the AIP interface of the engine intake port, with both ends of the housing open. One end of the housing abuts against the engine intake air duct, and the other end of the housing is connected to the engine;

[0007] Channel air extraction holes provided on the wall surface of the housing. The gas flowing out through the channel air extraction holes is led out to dissipate heat for devices with heat dissipation requirements;

[0008] A plurality of boundary layer air extraction holes provided on the wall surface of the housing. The gas flowing out through the boundary layer air extraction holes dissipates heat for the interior of the engine.

[0009] In some embodiments, one end of the channel air extraction hole close to the inner wall surface of the housing is connected to an intake pipe for introducing gas into the channel air extraction hole.

[0010] In some embodiments, one end of the channel air extraction hole close to the outer wall surface of the housing is connected to an extraction pipe fixed on the outer wall surface of the housing.

[0011] In some embodiments, the end of the extraction pipe away from the housing is connected to a ventilation hose, and the extraction pipe and the ventilation hose are fixedly connected.

[0012] In some embodiments, the air guiding pipe and the ventilation hose are fixedly connected through a hose clamp.

[0013] In some embodiments, the housing includes an inner ring part, a middle ring part, and an outer ring part which are arranged in sequence from inside to outside. One ends of the inner ring part, the middle ring part, and the outer ring part close to the engine air intake duct are located in the same plane.

[0014] In some embodiments, one end of the middle ring part away from the engine air intake duct has a groove structure, and the groove structure is used to cooperate with the engine to fix the housing on the engine.

[0015] In some embodiments, the connecting pieces are symmetrically arranged on the outer ring part, and the end faces of the connecting pieces are abutted against the middle ring part.

[0016] In some embodiments, threaded holes are provided on the connecting pieces.

[0017] In some embodiments, the angles of the channel air guide holes and the boundary layer air guide holes are adjustable.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The structure of the present invention is simple and easy to install and disassemble; the combined use of the boundary layer air guide holes and the channel air guide holes ensures that the cooling and pressurization of various types of equipment can be satisfied simultaneously.

[0020] The adapter ring of the present invention can be used for the air extraction of different types of turbine engine air intake ducts through simple adjustment, and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, wherein:

[0022] Figure 1 is the first three-dimensional structure schematic diagram of the adapter ring of the present invention;

[0023] Figure 2 is the plane structure schematic diagram of the adapter ring of the present invention;

[0024] Figure 3 is the second three-dimensional structure schematic diagram of the adapter ring of the present invention;

[0025] Description of the reference numerals:

[0026] Housing 1, intake pipe 2, air guiding pipe 3, ventilation hose 4, hose clamp 5, channel air guide hole 6, boundary layer air guide hole 7, inner ring part 8, middle ring part 9, outer ring part 10, connecting piece 11, groove structure 12, threaded hole 13. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

[0028] The turbine engine inlet AIP interface bleed transfer ring according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0029] As Figures 1-3 shown, the turbine engine inlet AIP interface bleed transfer ring of the present invention includes a housing 1, bleed holes, an intake pipe 2, a bleed pipe 3, and a ventilation hose 4.

[0030] The housing 1 is located at the AIP interface of the engine inlet. Both ends of the housing 1 are open. One end of the housing 1 abuts against the engine inlet duct, and the other end of the housing 1 is connected to the engine.

[0031] Specifically, the housing 1 is located at the AIP interface of the engine inlet. It can be understood that the positions of the AIP interfaces of the inlets of different models of engines are different. In actual applications, it is adjusted adaptively according to different engines.

[0032] Both ends of the housing 1 at the AIP interface of the inlet are open, so that the airflow of the inlet passes through the housing 1, and thus part of the airflow of the inlet can be led out to the outside of the housing 1.

[0033] In some embodiments, the housing 1 is made of metal.

[0034] The bleed holes include a channel bleed hole 6 and a boundary layer bleed hole 7. Both the channel bleed hole 6 and the boundary layer bleed hole 7 are provided on the wall surface of the housing 1.

[0035] The gas flowing out through the channel bleed hole 6 is used to dissipate heat from the equipment with heat dissipation requirements, and the gas flowing out through the boundary layer bleed hole 7 is used to dissipate heat inside the engine.

[0036] Specifically, a channel bleed hole 6 and a plurality of boundary layer bleed holes 7 are formed on the wall surface of the housing 1. After the airflow flows out through the boundary layer bleed holes 7, it is directly discharged to the outside of the housing 1 to dissipate heat inside the engine. After the airflow flows out through the channel bleed hole 6, it is led to other equipment with heat dissipation requirements to dissipate heat for other equipment.

[0037] One end of the channel bleed hole 6 close to the inner wall surface of the housing 1 is connected to the intake pipe 2, and the intake pipe 2 is used to introduce gas into the channel bleed hole 6.

[0038] Specifically, the channel air intake hole 6 opened on the wall surface of the housing 1 penetrates through the wall surface of the housing 1. One end of the channel air intake hole 6 close to the inner wall surface of the housing 1, that is, one end of the channel air intake hole 6 close to the air flow channel, is connected to the intake pipe 2. Part of the air flow in the air flow channel is led out to the channel air intake hole 6 through the intake pipe 2, and then led out to the outside of the housing 1.

[0039] One end of the channel air intake hole 6 close to the outer wall surface of the housing 1 is connected to the air extraction pipe 3, and the air extraction pipe 3 is fixed on the outer wall surface of the housing 1.

[0040] Specifically, one end of the channel air intake hole 6 close to the outer wall surface of the housing 1, that is, one end of the channel air intake hole 6 far from the air flow channel, is connected to the air extraction pipe 3. The air flow passing through the intake pipe 2 is led out to the outside of the housing 1 through the air extraction pipe 3. In some embodiments, the air extraction pipe 3 is fixedly welded on the outer wall surface of the housing 1.

[0041] The angles of both the channel air intake hole 6 and the boundary layer air intake hole 7 are adjustable. Specifically, both the air hole angle and the air hole size of the channel air intake hole 6 and the boundary layer air intake hole 7 are adjustable, so that the adapter ring of the present invention can provide sufficient and stable air extraction for various engine devices. In addition, the installation positions of the adapter rings of the present invention for different engines are different. By adjusting the installation position, air hole size, and air hole angle of the adapter ring, while providing sufficient and stable air extraction for various engine devices, the influence on the engine intake distortion is ensured to be controllable. The adapter ring structure of the present invention can be used for the air extraction of the oncoming flow of different types of turbine engine air intakes after simple adaptive adjustment.

[0042] One end of the air extraction pipe 3 far from the housing 1 is connected to the ventilation hose 4, and the air extraction pipe 3 and the ventilation hose 4 are fixedly connected.

[0043] Specifically, in order to more conveniently lead the air flow extracted by the air extraction pipe 3 to the devices with heat dissipation requirements, a ventilation hose 4 is connected and arranged at one end of the air extraction pipe 3 far from the housing 1, that is, the air flow outlet end of the air extraction pipe 3. Since the ventilation hose 4 is made of a flexible material, the path of the ventilation hose 4 can be changed according to requirements, so as to lead the air flow to different devices for heat dissipation of different devices. In order to prevent the air flow from escaping from the interface between the air extraction pipe 3 and the ventilation hose 4, the ventilation hose 4 is fixedly connected to the air extraction pipe 3. In addition, it can be understood that the length of the ventilation hose 4 is adjustable, so as to provide stable channel air extraction for various devices.

[0044] In some embodiments, the air extraction pipe 3 and the ventilation hose 4 are fixedly connected by a hose clamp 5. It can be understood that the air extraction pipe 3 and the ventilation hose 4 can also be connected by other fixing methods.

[0045] In some embodiments, the housing 1 includes an inner ring portion 8, a middle ring portion 9, and an outer ring portion 10 that are sequentially arranged inside and outside. One end of the inner ring portion 8, the middle ring portion 9, and the outer ring portion 10 close to the engine intake passage is located in the same plane.

[0046] Specifically, the housing 1 structurally includes an outer ring portion 10 on the outside, an inner ring portion 8 on the inside, and a middle ring portion 9 disposed between the outer ring portion 10 and the inner ring portion 8. One end of the outer ring portion 10, the middle ring portion 9, and the inner ring portion 8 is located in the same plane, that is, the end face of the housing 1 close to the intake passage is a flat end face.

[0047] In some embodiments, one end of the middle ring portion 9 far from the engine intake passage has a groove structure 12, and the groove structure 12 is used to cooperate with the engine to fix the housing 1 to the engine.

[0048] Specifically, the housing 1 is fixed to the engine through the groove structure 12 of the middle ring portion 9. That is to say, one end of the middle ring portion 9 has a groove structure 12, and there is a structure on the engine that cooperates with the groove structure 12, so that the groove structure 12 cooperates with the structural member of the engine to snap-fix the housing 1 to the engine.

[0049] The connectors 11 are symmetrically arranged on the outer ring portion 10, and the end faces of the connectors 11 are abutted against the middle ring portion 9.

[0050] Specifically, the connectors 11 are symmetrically arranged on the outer ring portion 10. The connectors 11 are fixedly connected to the outer ring portion 10, and one end face of the connectors 11 is abutted against the middle ring portion 9, so that the connectors 11 are abutted against the outer wall surface of the middle ring portion 9.

[0051] In some embodiments, the connectors 11 are arranged at positions corresponding to the channel air guide holes 6. At this time, the channel air guide holes 6 penetrate through the inner ring portion 8, the outer ring portion 10, and the connectors 11 of the housing 1. The air guide pipe 3 passes through the connectors 11 and is fixed to the middle ring portion 9 of the housing 1, so that the airflow flowing out of the channel air guide holes 6 is led out of the housing 1 through the air guide pipe 3.

[0052] In some embodiments, threaded holes 13 are provided on the connectors 11. Specifically, threaded holes 13 are provided on the connectors 11 arranged on the outer ring portion 10. The provision of the threaded holes 13 enables the housing 1 and the engine to be further fixedly connected by bolts, so that the adapter ring is more stably fixedly connected to the engine.

[0053] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms may be directed to different embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0054] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A bleed air adapter ring for the AIP interface of a turbine engine inlet duct, Characterized in that, Comprising: A housing located at the AIP interface of the engine inlet, the housing having openings at both ends, one end of the housing abuts against the engine inlet duct, and the other end of the housing is connected to the engine; Channel bleed holes provided on the wall of the housing, and the gas flowing out through the channel bleed holes is used to dissipate heat for equipment with heat dissipation requirements; A plurality of boundary layer bleed holes provided on the wall of the housing, and the gas flowing out through the boundary layer bleed holes dissipates heat inside the engine.

2. The adapter ring according to claim 1, Characterized in that, One end of the channel bleed hole close to the inner wall surface of the housing is connected to an intake pipe for introducing gas into the channel bleed hole.

3. The adapter ring according to claim 1, Characterized in that, One end of the channel bleed hole close to the outer wall surface of the housing is connected to a bleed pipe fixed to the outer wall surface of the housing.

4. The adapter ring according to claim 3, Characterized in that, The end of the bleed pipe away from the housing is connected to a ventilation hose, and the bleed pipe and the ventilation hose are fixedly connected.

5. The adapter ring according to claim 4, Characterized in that, The bleed pipe and the ventilation hose are fixedly connected by a hose clamp.

6. The adapter ring according to claim 1, Characterized in that, The housing includes an inner ring part, a middle ring part and an outer ring part arranged in sequence from inside to outside, and one ends of the inner ring part, the middle ring part and the outer ring part close to the engine inlet duct are located in the same plane.

7. The adapter ring according to claim 6, Characterized in that, One end of the middle ring part away from the engine inlet duct has a groove structure for cooperating with the engine to fix the housing on the engine.

8. The adapter ring according to claim 6, Characterized in that, Connectors are symmetrically arranged on the outer ring part, and the end faces of the connectors abut against the middle ring part.

9. The adapter ring according to claim 8, Characterized in that, Threaded holes are provided in the connectors.

10. The adapter ring according to claim 1, Characterized in that, The angles of the channel bleed holes and the boundary layer bleed holes are adjustable.

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