Aero-engine nozzle convergence piece adjusting mechanism for
A technology of aero-engines and regulating mechanisms, applied in the direction of machines/engines, jet propulsion devices, etc., can solve the problems of low regulation efficiency, complex structure, and large space occupation, and achieve small space occupation, high load transmission efficiency, and high regulation efficiency Effect
Inactive Publication Date: 2021-05-07
AECC SHENYANG ENGINE RES INST
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Problems solved by technology
[0004] 1) The structure is complex and needs to occupy a large space;
[0005] 2) In order to synchronize the adjustment of each convergent piece, a complex synchronization mechanism is designed, the load is large, the adjustment efficiency is low, and the adjustment of the convergent piece is hysteresis, which makes the change of the throat area of the nozzle lag behind and limits the performance of the engine improvement
Method used
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[0028] In order to make the technical solution of the present application and its advantages clearer, the technical solution of the present application will be further clearly and completely described in detail below in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only part of the application Examples are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, and other relevant parts can refer to the general design. In the case of no conflict, the embodiments in the application and the technologies in the embodiments Features can be combined with each other to obtain new embodiments.
[0029] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of the application shall have the usual meanings und...
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The invention belongs to the technical field of aero-engine nozzle convergence piece adjusting design, and particularly relates to an aero-engine nozzle convergence piece adjusting mechanism. The aero-engine nozzle convergence piece adjusting mechanism comprises a supporting ring arranged on the periphery of a nozzle in a sleeving mode, multiple rocker arms hinged to the supporting ring, multiple pull rods and multiple actuating cylinders; one end of each pull rod is correspondingly hinged to one rocker arm, and the other end is correspondingly hinged to the outer wall of one convergence piece; and a cylinder body of each actuating cylinder is hinged to the outer wall of the nozzle connecting cylinder, and a piston rod is correspondingly hinged to one rocker arm to drive the corresponding rocker arm to rotate around the hinged part of the rocker arm and the supporting ring, so that the corresponding convergence piece is driven to move through the corresponding pull rod, and the throat area of the nozzle is adjusted.
Description
technical field [0001] The application belongs to the technical field of adjusting design of aero-engine nozzle convergent slices, and in particular relates to an aero-engine nozzle convergent plate adjusting mechanism. Background technique [0002] The nozzle is an important part of the aero-engine, which is used to expel the high-temperature and high-pressure gas after the turbine to expand and accelerate, thereby generating engine thrust. , one end of each converging piece is hinged at the outlet end of the nozzle connecting cylinder, distributed along the circumferential direction, and the adjacent converging pieces are in sealing contact to form the nozzle converging section, and the radial dimension of the nozzle converging section is away from the nozzle The direction of the connecting cylinder shrinks gradually to form the throat of the nozzle; one end of each expansion piece is correspondingly hinged on the other end of a convergent piece, and the adjacent expansion...
Claims
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Login to View More IPC IPC(8): F02K1/15F02K1/82F02K1/78
CPCF02K1/15F02K1/78F02K1/82
Inventor 王殿磊叶留增许羚
Owner AECC SHENYANG ENGINE RES INST