An axisymmetric plug-type vector nozzle

Abstract

The invention relates to the field of aero-engine nozzle design, in particular to a novel axial symmetry plug type thrust vectoring nozzle. The novel axial symmetry plug type thrust vectoring nozzle comprises a barrel, a plug cone front segment, a plug cone rear segment, supporting plates, actuator cylinders, levers and connecting rods. A cylindrical flat segment serves as the front segment of the barrel, and a convergence segment serves as the rear segment of the barrel. The plug cone front segment is located in the barrel, and the inner molded surface of the rear end of the plug cone front segment is a spherical surface. An outer molded surface with the shape and size matched with those of the inner molded surface of the rear end of the plug cone front segment is arranged at the front end of the plug cone rear segment, and a spherical surface pair is formed by the outer molded surface and the inner molded surface of the plug cone front segment. Each supporting plate is of a hollow structure, one end of each supporting plate and the barrel are fastened, and the other end of each supporting plate and the plug cone front segment are fixed. The actuator cylinders are hinged to the outer portion of the barrel. Each lever is hinged into an inner cavity of the corresponding supporting plate, and one end of each lever is hinged to the corresponding actuator cylinder. The connecting rods are located in an inner cavity of the plug cone front segment, one end of each connecting rod is hinged to the corresponding lever, and the other end of each connecting rod is hinged to the end, close to the plug cone front segment, of the plug cone rear segment. The novel axial symmetry plug type thrust vectoring nozzle is simple and reliable in structure, vector propelling can be effectively achieved, and the requirements of different work states of an engine can be met.

Description

technical field [0001] The invention relates to the field of aircraft engine nozzle design, in particular to an axisymmetric plug-type vector nozzle. Background technique [0002] Axisymmetric plug nozzles have broad application prospects in aero-engines, and throat area adjustment is a basic function they should have. There are mainly two methods for the vector deflection of the existing axisymmetric plug-type vector nozzles. One is to deflect the plug cone as a whole, and the other is to deflect the barrel of the nozzle as a whole. Both of these vector deflection methods have complex mechanisms and drive Insufficient force and poor aerodynamic performance. Contents of the invention [0003] The object of the present invention is to provide an axisymmetric plug-type vectoring nozzle to solve at least one technical problem existing in the above-mentioned axisymmetric plug-type vectoring nozzle. [0004] Technical scheme of the present invention is: [0005] An axisymmet...

AI Technical Summary

Problems solved by technology

There are mainly two methods for the vector deflection of the existing axisymmetric plug-type vector nozzles. One is to deflect the plug cone as a whole, and the other is to deflect the barrel of the nozzle as a whole. Both of these vector deflection methods have complex mechanisms and drive Insufficient force and poor aerodynamic performance

Images