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Compact pintle injector adjusting mechanism

A technology of adjusting mechanism and injector, which is applied to machines/engines, aerospace vehicles, aircrafts, etc., can solve the problems of large volume, many parts, and reduce the reliability of rocket engine systems, and achieve the effect of compact structure

Inactive Publication Date: 2021-06-01
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing pintle injectors often require an externally connected complex drive and transmission mechanism to adjust the movable parts of the pintle injector, resulting in a larger volume and more components for the entire pintle injector system, reducing the system reliability of the entire rocket engine

Method used

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  • Compact pintle injector adjusting mechanism
  • Compact pintle injector adjusting mechanism
  • Compact pintle injector adjusting mechanism

Examples

Experimental program
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Effect test

Embodiment 1

[0050] see Figure 1 to Figure 6As shown, the compact pintle injector adjustment mechanism provided by the present application includes a fixed frame 101 , a through-hole servo motor 102 and a transmission assembly. The end of the fixed frame 101 is connected to the head of the pintle injector, and the through-hole servo motor 102 and the transmission assembly are installed in the fixed frame 101; the fixed frame 101 forms a main support structure for fixing the through-hole servo motor 102 And the transmission assembly, and accommodate them both to make the structure more compact.

[0051] The stator 104 of the through-hole servo motor 102 is connected to the fixed frame 101, that is, the motor is installed on the fixed frame 101; the rotor 105 of the through-hole servo motor 102 is connected to the transmission assembly, and the transmission assembly is used to output the through-hole servo motor 102 The rotary motion of the pintle injector is converted into linear motion, ...

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PUM

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Abstract

The invention relates to the technical field of space propulsion, in particular to a compact pintle injector adjusting mechanism. The compact pintle injector adjusting mechanism comprises a fixing frame, a through hole type servo motor and a transmission assembly. The end of the fixing frame is connected with the head of a pintle injector, and the through hole type servo motor and the transmission assembly are installed in the fixing frame. A stator of the through hole type servo motor is connected with the fixing frame, a rotor of the through hole type servo motor is connected with the transmission assembly, and the transmission assembly is used for converting rotational motion output by the through hole type servo motor into linear motion and is connected with a moving part of the pintle injector. And at least one part of the transmission assembly is arranged in a through hole of the through hole type servo motor. The compact pintle injector adjusting mechanism is compact in mechanical structure and can be tightly combined with the head structure of the pintle injector, the structural size of the pintle injector system is reduced, and the system reliability of a pintle type variable thrust rocket engine is improved.

Description

technical field [0001] The present application relates to the field of space propulsion technology, in particular to a compact adjustment mechanism for a pintle injector. Background technique [0002] The pintle injector is an important component of the pintle variable thrust rocket engine. The adjustment of the pintle injector is the main means to realize the variable thrust of this type of engine. By adjusting the pintle injector, the propellant injection can be realized. Note state control, so as to achieve variable thrust. [0003] Existing pintle injectors often require an externally connected complex drive and transmission mechanism to adjust the movable parts of the pintle injector, resulting in a larger volume and more components for the entire pintle injector system, reducing The system reliability of the entire rocket engine is guaranteed. Contents of the invention [0004] The purpose of the present application is to provide a compact pintle injector adjustmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K9/52B64G1/40
CPCF02K9/52B64G1/401
Inventor 张源俊俞南嘉李天文龙治光赵亚明赵增韩树焘周闯任杰冯浩王树文龚昊杰
Owner BEIHANG UNIV
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