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Reverse thrusting device with capacity of adjusting area of spray pipe

A thrust reverser and area adjustment technology, which is applied to jet propulsion devices, machines/engines, etc., can solve problems such as limiting engine adjustment capabilities, and achieve the effect of adjusting requirements

Inactive Publication Date: 2014-04-02
AECC SHENYANG ENGINE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different working conditions of the engine have different requirements on the throat area of ​​the nozzle, and the non-adjustable nozzle limits the adjustment ability of the engine, so that the engine cannot continue to operate in the best working condition

Method used

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  • Reverse thrusting device with capacity of adjusting area of spray pipe
  • Reverse thrusting device with capacity of adjusting area of spray pipe
  • Reverse thrusting device with capacity of adjusting area of spray pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The invention provides a thrust reverser with nozzle area adjustment capability, characterized in that: the thrust reverser with nozzle area adjustment capability includes a moving part and a fixed part, and the movement mechanism is used to close the thrust reverser The state realizes the adjustment of the area of ​​the culvert nozzle and the opening and closing of the thrust reverser;

[0019] The thrust reverser is mainly composed of a reverse thrust fairing 1, an outer wall of the outer culvert nozzle 2, a diffuser front wall 3, an actuator 4, a cascade 5, a reverse exhaust fairing 6, a choke valve 7, and a pull rod 8. The inner wall surface 9 of the outer culvert nozzle and the support seat 10, wherein the diffuser front wall 3, the inner wall surface 9 of the outer culvert nozzle, the cascade 5, and the reverse exhaust fairing 6 are fixed parts; the components of the fixed part pass through Bolt connection or rivet connection, the reverse thrust fairing 1, the out...

Embodiment 2

[0025] The invention provides a thrust reverser with nozzle area adjustment capability, characterized in that: the thrust reverser with nozzle area adjustment capability includes a moving part and a fixed part, and the movement mechanism is used to close the thrust reverser The state realizes the adjustment of the area of ​​the culvert nozzle and the opening and closing of the thrust reverser;

[0026] The thrust reverser is mainly composed of a reverse thrust fairing 1, an outer wall of the outer culvert nozzle 2, a diffuser front wall 3, an actuator 4, a cascade 5, a reverse exhaust fairing 6, a choke valve 7, and a pull rod 8. The inner wall surface 9 of the outer culvert nozzle and the support seat 10, wherein the diffuser front wall 3, the inner wall surface 9 of the outer culvert nozzle, the cascade 5, and the reverse exhaust fairing 6 are fixed parts; the components of the fixed part pass through Bolt connection or rivet connection, the reverse thrust fairing 1, the out...

Embodiment 3

[0032] The invention provides a thrust reverser with nozzle area adjustment capability, characterized in that: the thrust reverser with nozzle area adjustment capability includes a moving part and a fixed part, and the movement mechanism is used to close the thrust reverser The state realizes the adjustment of the area of ​​the culvert nozzle and the opening and closing of the thrust reverser;

[0033] The thrust reverser is mainly composed of a reverse thrust fairing 1, an outer wall of the outer culvert nozzle 2, a diffuser front wall 3, an actuator 4, a cascade 5, a reverse exhaust fairing 6, a choke valve 7, and a pull rod 8. The inner wall surface 9 of the outer culvert nozzle and the support seat 10, wherein the diffuser front wall 3, the inner wall surface 9 of the outer culvert nozzle, the cascade 5, and the reverse exhaust fairing 6 are fixed parts; the components of the fixed part pass through Bolt connection or rivet connection, the reverse thrust fairing 1, the out...

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Abstract

The invention discloses a reverse thrusting device with the capacity of adjusting the area of a spray pipe. The reverse thrusting device comprises a motion part and a fixed part, and a motion mechanism is used for realizing the adjustment on the area of an outer culvert spray pipe and the opening and closing of the reverse thrusting device when the reverse thrusting device is in a closing state; an outer culvert spray pipe throat area A can be formed together by an outer culvert spray pipe outer wall surface and an outer culvert spray pipe inner wall surface when an actuating cylinder is in a retracting position, an outer culvert spray pipe throat area B is formed together by the outer culvert spray pipe outer wall surface and the outer culvert spray pipe inner wall surface, an outer culvert spray pipe throat area is positioned between A and B when the stretching length of the actuating cylinder is positioned between 0 and L, and thus the adjustment on the area of the outer culvert spray pipe throat area can be realized. The reverse thrusting device disclosed by the invention has the advantages that the structure form of an existing reverse thrusting device is not changed, only an existing structure is adaptively changed, and thus the adjustment requirement on the area of the outer culvert spray pipe throat area of a large-bypass-ratio engine can be realized on the premise that an original reverse thrusting function is ensured.

Description

technical field [0001] The invention relates to the field of aeroengine nozzles, in particular to a thrust reverser with nozzle area adjustment capability. Background technique [0002] The traditional thrust reverser is only used during the landing process of the aircraft, and the large bypass ratio formed by it is not adjustable for the throat area of ​​the engine nozzle. Different working conditions of the engine have different requirements on the throat area of ​​the nozzle, and the non-adjustable nozzle limits the adjustment ability of the engine, so that the engine cannot continue to operate in the best working condition. Therefore, a method for adjusting the throat area of ​​the nozzle is designed, so that the engine has the function of adjusting the throat area while ensuring the original reverse thrust function, so that the engine is in the best state at each working point, and the engine is always at a high level. Efficient operation. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): F02K1/54F02K1/11
Inventor 汪东金文栋丛明辉狄虎威
Owner AECC SHENYANG ENGINE RES INST
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