Linear control double-throat pneumatic thrust vectoring nozzle

Abstract

The invention discloses a linear control double-throat pneumatic thrust vectoring nozzle which comprises a spring-cam-valve mechanical device installed on a self-adaptive bypass, a valve of the self-adaptive bypass is pulled upwards all the time by elastic components such as a spring, and the valve of the self-adaptive bypass is pressed downwards all the time by a cam. When the radius of the cam changes, the valve acts upwards or downwards under the action of elastic components such as a spring. The actual opening degree of the self-adaptive bypass is changed through rotation of the cam, and conversion between the cam rotating at a constant speed and a vector angle changing linearly is completed. The mechanical device is simple in structure, small in overall change of the spray pipe, capable of completing linear adjustment of the vector of the spray pipe, beneficial to adjustment of the flight attitude of an aircraft and obvious in benefit.

Description

Technical field [0001] The present invention belongs to the technical field thrust vectoring engine nozzle aviation, in particular, relates to a linear pneumatic control vector dual throat nozzle. Background technique [0002] With the development of science and technology and the actual needs of the future aircraft will increasingly use thrust vectoring aircraft engine. The core thrust vectoring aircraft engine thrust vectoring function is to achieve thrust vectoring nozzle. Traditional mechanical thrust vectoring nozzle structure complexity, poor reliability, maintenance problems, and therefore to develop a simple structure, light weight, thrust vectoring nozzle to maintain good performance imminent. [0003] Moment, fluidic thrust vectoring nozzle gradually its simple structure, light weight become the focus of research and research focus countries, and will enter engineering applications in the near future. At the same time, how to adjust the nonlinear variation vector due to...

AI Technical Summary

Problems solved by technology

[0005]Due to changes in boundary conditions such as adaptive bypass valve opening or closing, instability and breakup of vortices in the flow itself, flow phenomena related to turbulence, etc. The Unsteady Phenomena of the Vectoring Nozzle and the Hysteresis and Nonlinear Phenomena of the Regulating Process

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