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Stop valve, engine and rocket vehicle

A shut-off valve and spool technology, applied in the field of aircraft, can solve problems such as difficult effective flow control, and achieve the effects of improving reliability, facilitating auxiliary adjustment, and being easy to implement

Active Publication Date: 2021-04-30
BEIJING XINGJI RONGYAO SPACE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the common cut-off valve in the prior art is difficult to effectively control the flow in different working stages, thereby providing a cut-off valve and engine and rocket system

Method used

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  • Stop valve, engine and rocket vehicle

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Embodiment Construction

[0050] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...

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Abstract

The invention provides a stop valve, an engine and a rocket vehicle. The stop valve comprises a material passing channel and a spool chamber, wherein the material passing channel is suitable for conveying material liquid; the spool chamber is communicated with the material passing channel, a valve element component and a control component are arranged on the spool chamber, and the valve element component comprises a first valve element and a second valve element; a first elastic piece is arranged in the first valve element, and the first valve element has a flow limiting state that the first valve element abuts against the inner wall of the material passing channel under the action of the first elastic piece and the material passing channel is at least partially closed and a communicating state that the first valve element and the inner wall of the material passing channel are arranged at intervals and the material passing channel is open; the second valve element is adjacent to the first valve element, a second elastic piece is arranged on the second valve element, and the second valve element has a closed state that the second valve element abuts against the first valve element under the action of the second elastic piece and the material passing channel is completely closed and an open state that the material passing channel is partially opened; and the control component is connected to the first valve element and the second valve element and suitable for adjusting the state changes of the first valve element and the second valve element.

Description

technical field [0001] The invention relates to the technical field of aircraft, in particular to a shut-off valve, an engine and a rocket system. Background technique [0002] A liquid rocket is a rocket powered by a liquid rocket engine. The chemical propellant used by the liquid rocket engine is composed of fuel and oxidant, which need to be fed into the thrust chamber at the same time during work. [0003] Nowadays, the opening and closing of fuel and oxidant into the thrust chamber is usually controlled by a cut-off valve, but liquid rocket engines have high requirements for valve response time and action sensitivity, and need to control the flow of fuel and oxidant according to different stages. Conventional shut-off valves in the prior art are difficult to implement. Contents of the invention [0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the common cut-off valve in the prior art is difficult to effect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/44F16K1/52F16K31/122F02K9/58
CPCF02K9/58F16K1/443F16K1/52F16K31/122
Inventor 刘兴睿张玺唐文熊宴斌
Owner BEIJING XINGJI RONGYAO SPACE TECH CO LTD
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