Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Impact-resistant reverse unloading distribution type high-precision gas pressure reduction device

A decompression device and shock-resistant technology, which is applied to the valve's device for absorbing fluid energy, valve device, functional valve type, etc., to achieve the effects of improving sensitivity and stability, improving adjustment response speed, and reducing outlet pressure deviation.

Active Publication Date: 2019-09-20
XIAN AEROSPACE PROPULSION INST
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the structure of the existing pressure reducing valve, the present invention provides a high-precision gas pressure reducing device with impact resistance, reverse unloading and distributed pressure, which can effectively improve the impact resistance of the pressure reducing valve, the accuracy of the outlet pressure and the adjustment Stability, reducing the static and dynamic pressure difference of the pressure reducing valve, ensuring that the pressure reducing valve meets the requirements of outlet pressure regulation accuracy in a wide range of temperature environments

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
  • Impact-resistant reverse unloading distribution type high-precision gas pressure reduction device
  • Impact-resistant reverse unloading distribution type high-precision gas pressure reduction device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Below in conjunction with accompanying drawing and specific embodiment content of the present invention is described in further detail:

[0039] Such as figure 1 and figure 2 As shown, the impact-resistant reverse unloading distributed pressure-induced high-precision gas decompression device includes a valve body 1 , a valve core 2 and an unloading ring 3 .

[0040]The valve body 1 is integrated with a valve seat function, its lower end is sealed, and the upper end is provided with a blocking cover 4; The lower end of the chamber is a pressure sensitive chamber 20 ; a reset component is arranged in the pressure introduction chamber 19 , and a pressure sensitive component is arranged in the pressure sensitive chamber 20 . The upper end is designed with a blocking cover to facilitate the disassembly and assembly of the valve core and unloading ring in the inner cavity of the valve.

[0041] The spool 2 integrates the functions of the unloading rod and the ejector rod,...

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

The invention provides an impact-resistant reverse unloading distribution type high-precision gas pressure reduction device. The device is designed by adopting a distribution pressure guide structure, outlet low-pressure gas at different positions is guided to the upper cavity of the valve core through feedback holes located in different sections of the valve core, the pressure deviation of the upper cavity and the lower cavity of the valve core is reduced, the upper cavity of the pressure reducing device is rapidly and accurately modeled in the adjusting process, and the sensitivity and the stability are improved. Meanwhile, the influence of inlet pressure is eliminated by adopting a reverse unloading structure design, the valve core has the unloading rod function, the high-pressure stress part of the valve element is isolated from the low-pressure stress part through the sealing assembly, pressure unloading design is realized, the upper sealing surface and the lower sealing surface of the valve body are subjected to equal-section design, so that the acting force of the inlet pressure acting on the upper end surface and the lower end surface of the valve core moving part is counteracted, the complete unloading of the inlet pressure is realized, so that the valve element is not influenced by the change of the inlet pressure in the adjusting process, so that the opening degree of the valve element is only influenced by the pressure change of the outlet.

Description

technical field [0001] The invention belongs to a high-pressure gas decompression device, in particular to a high-precision gas decompression device with impact resistance, reverse unloading, distribution and pressure introduction, which can be used as a high-pressure gas decompression device for liquid rocket engines, satellite on-orbit execution power systems, and ground test systems. Pressure device to achieve stable low-pressure gas output and complete gas delivery management. Background technique [0002] In the development of the final attitude control power system, due to the harsh operating environment, the engine needs to work reliably in the storage environment of -55°C to 60°C and the working environment of -35°C to 60°C, and the product has to undergo ground transportation during work Vibration, hanging flight vibration, autonomous flight vibration, shock and overload and other mechanical environment test assessments. As the pressure regulating device of the pow...

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 Applications(China)
IPC IPC(8): F16K17/22F16K47/08
CPCF16K17/22F16K47/08
Inventor 曾维亮罗大亮魏学峰赫伟涛张萍刘永安
Owner XIAN AEROSPACE PROPULSION INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products