Unlock instant, AI-driven research and patent intelligence for your innovation.

a convergent nozzle

A nozzle and regulating plate technology, applied in the direction of jet propulsion devices, machines/engines, etc., can solve the problems of inconvenient nozzle repair design, low reliability, weak stealth ability, etc., to achieve good stealth ability and convenient stealth repair shape, the effect of fewer moving parts

Active Publication Date: 2016-01-20
AECC SHENYANG ENGINE RES INST
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional aero-engine converging nozzle is a regulating plate axisymmetric converging nozzle. This kind of converging nozzle has a large number of components and a complex structure. It is composed of several regulating plates and sealing plates. The actuation and drive system of the system is complex, resulting in complex motion relations and low reliability. At the same time, due to the large number of components and the structural limitations of the axisymmetric nozzle itself, it is not convenient for the stealth modification design of the nozzle, resulting in weak stealth ability.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • a convergent nozzle
  • a convergent nozzle
  • a convergent nozzle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a converging nozzle, which is characterized in that: the converging nozzle includes a transition section cylinder 1, an active adjustment plate 2, a sealing adjustment plate 3 and an actuator 4;

[0026] The front end of the transition section barrel 1 is connected to the engine as a supporting member for the entire nozzle; the front end of the active adjustment plate 2 is connected to the tail end of the transition section barrel 1 through a rotating pair, and the two sides of the active adjustment plate 2 are adjusted through a plane pair and a seal The plate 3 is connected to the outlet area of ​​the nozzle as an active adjustment member, which is driven by the actuator 4 to adjust the outlet area; the front end of the sealing adjustment plate 3 is connected to the tail end of the transition section barrel 1 through a rotating pair, and serves as the internal flow of the entire nozzle. The sealing member of the road; the rotation center of the...

Embodiment 2

[0036] This embodiment provides a converging nozzle, which is characterized in that: the converging nozzle includes a transition section cylinder 1, an active adjustment plate 2, a sealing adjustment plate 3 and an actuator 4;

[0037] The front end of the transition section barrel 1 is connected to the engine as a supporting member for the entire nozzle; the front end of the active adjustment plate 2 is connected to the tail end of the transition section barrel 1 through a rotating pair, and the two sides of the active adjustment plate 2 are adjusted through a plane pair and a seal The plate 3 is connected to the outlet area of ​​the nozzle as an active adjustment member, which is driven by the actuator 4 to adjust the outlet area; the front end of the sealing adjustment plate 3 is connected to the tail end of the transition section barrel 1 through a rotating pair, and serves as the internal flow of the entire nozzle. The sealing member of the road; the rotation center of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A convergent nozzle comprises a transition section cylinder, active adjustment plates, sealing adjustment plates and an actuator cylinder. The front end of the transition section cylinder is connected with an engine, and the transition section cylinder serves as a supporting component of the whole nozzle; the front end of each active adjustment plate is connected with the tail end of the transition section cylinder through a revolving pair, and the two side faces of each active adjustment plate are connected with the corresponding sealing adjustment plates through plane pairs; the front end of each sealing adjustment plate is connected with the tail end of the transition section cylinder through a revolving pair; rotation centers of the revolving pairs for connecting the front ends of the active adjustment plates and the tail end of the transition section cylinder pass through the intersection point of rotation centers of the revolving pairs for connecting the front ends of the adjacent sealing adjustment plates and the tail end of the transition section cylinder; the front end of the actuator cylinder is connected to the transition section cylinder through a revolving pair, and the tail of the actuator cylinder is connected with the active adjustment plates. The convergent nozzle has the advantages of being simple in structure, few in movement components, high in reliability and simple in profile, facilitating stealth modification, having good stealth capacity, and meanwhile, having certain outlet area adjustment capacity.

Description

technical field [0001] The invention relates to the field of aircraft engine nozzle structures, in particular to a convergent nozzle. Background technique [0002] The traditional aero-engine converging nozzle is an adjusting plate type axisymmetric converging nozzle. This kind of converging nozzle has a large number of components and a complex structure. The actuation and drive system of the nozzle is complex, resulting in complex motion relations and low reliability. At the same time, due to the large number of components and the structural limitations of the axisymmetric nozzle itself, it is not convenient for the stealth modification design of the nozzle, resulting in weak stealth ability. Therefore, in order to be suitable for aeroengines with different emphases, it is necessary to design a converging nozzle with simple structure, few moving parts, high reliability, simple profile, and a certain outlet area adjustment capability. Contents of the invention [0003] In...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F02K1/11
Inventor 赵春生
Owner AECC SHENYANG ENGINE RES INST