Two-dimensional plug nozzle with thrust reversing function

Abstract

The invention relates to the technical field of structure design of aircraft engines, in particular to a two-dimensional plug nozzle with a thrust reversing function. The front end of a circular-rotating square-barrel body is connected with an engine, and the rear end of the circular-rotating square-barrel body is fixedly connected with two side wall boards distributed in left-right symmetry and two horizontal wall boards distributed in vertical symmetry. An adjustable wall board is a part of each horizontal wall board, and an adjustable baffle is a part of a plug cone. When the adjustable baffle rotates by a preset angle, the adjustable wall boards rotate synchronously, and a thrust reversing exhaust channel is formed by the adjustable wall boards, the left side wall board and the right side wall board. According to the two-dimensional plug nozzle with the thrust reversing function, on the premise that the thrust reversing function is achieved, the structure type and the function of a conventional two-dimensional plug nozzle are guaranteed; the overall dimension is small, the weight is low, the structure is simple, and the reliability is high; integral design of a rear fuselage is facilitated, and the defects of a conventional nozzle thrust reverser are overcome.

Description

technical field [0001] The invention relates to the technical field of aero-engine structural design, in particular to a binary plug nozzle with reverse thrust function. Background technique [0002] The increase of the speed of the aircraft and the increase of the wing load will inevitably increase the take-off and landing run distance of the aircraft. In order to shorten the run distance of the aircraft and perform necessary maneuvering flight actions, a reverse thrust deceleration device is required. The traditional grab-shaped baffle thrust reverser is relatively bulky and bears a large reverse thrust load; the baffle grid thrust reverser has many mechanical coordination parts and a complex structure, and the airflow is easy to leak, resulting in reduced engine performance. The existing thrust reverser Devices have been difficult to meet the rapid development of technology. [0003] The technical problem that needs to be solved urgently now is how to design a thrust rev...

AI Technical Summary

Problems solved by technology

The traditional grab-shaped baffle thrust reverser is relatively bulky and bears a large reverse thrust load; the baffle grid thrust reverser has many mechanical coordination parts and a complex structure, and the airflow is easy to leak, resulting in reduced engine performance. The existing thrust reverser The device has been difficult to meet the rapid development of technology

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