An aero-engine adjustable nozzle with a double-layer integrated adjusting piece structure

Abstract

The application discloses an aero-engine adjustable tail nozzle with a double-layer integrated adjusting sheet structure, which comprises a double-layer integrated adjusting sheet, a nozzle connecting cylinder and a hydraulic actuating cylinder. The double-layer integrated adjusting sheet comprises arc-shaped adjusting sheets and adjusting sheet supporting rods which are connected correspondingly. The arc-shaped adjusting sheets are arranged in a circular shape, and the nozzle connecting cylinder extends into the adjusting sheets. The nozzle connecting cylinder is externally provided with a double-layer integrated adjusting sheet mounting seat and a hydraulic actuating cylinder mounting seat correspondingly. The adjusting sheet supporting rods are hingedly connected to the double-layer integrated adjusting sheet mounting seat and one end of the hydraulic actuating cylinder respectively, and the other end of the hydraulic actuating cylinder is hingedly connected to the hydraulic actuating cylinder mounting seat. The hydraulic actuating cylinder is used as a driving force to control the position of the double-layer integrated adjusting sheet at the tail of the nozzle connecting cylinder, so that the tail nozzle area is adjusted, the complexity of the adjustable tail nozzle is reduced, the fuel consumption is reduced, and the engine working efficiency is improved.

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