A bang-bang pressure reducing structure with adjustable supply gas capacity

By designing a bang-bang pressure-reducing structure with adjustable gas supply capacity, the problems of reduced propellant mass and shortened solenoid valve life caused by changes in gas source pressure were solved, achieving high-precision pressure regulation and extended solenoid valve life.

CN122407981APending Publication Date: 2026-07-17SHENYANG AEROSPACE XINGUANG GRP
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SHENYANG AEROSPACE XINGUANG GRP
Filing Date
2026-04-01
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

When the air source pressure decreases, the quality of the propellant supplied by the bang-bang pressure-reducing structure decreases, leading to an increase in the operating frequency of the solenoid valve and a shortened lifespan.

Method used

Design a bang-bang pressure reducing structure with adjustable supply gas capacity. By using a small gas capacity between valves with variable volume and an adjusting rod, the gas capacity can be adjusted to adapt to changes in gas source pressure, ensuring the quality of the working fluid supplied each time and extending the life of the solenoid valve.

Benefits of technology

It improves the pressure regulation accuracy and working efficiency under different air source pressures, extends the service life of the solenoid valve, and reduces manufacturing costs.

โœฆ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122407981A_ABST
    Figure CN122407981A_ABST
Patent Text Reader

Abstract

The application discloses a kind of adjustable bang-bang pressure reducing structure of supply gas capacity, belong to gas pressure control technical field.The structure includes gas source, electromagnetic valve group, valve small gas capacity and buffer tank, valve small gas capacity is the cavity structure of variable volume, its shell interior includes first cavity and second cavity by passage intercommunication, channel is inserted and connected adjusting rod, spring is arranged between adjusting rod and first cavity cavity wall, adjusting rod can be moved along passage axial direction by the volume of adjusting rod extending into second cavity to adjust the volume of second cavity, gas source is communicated with first cavity, first electromagnetic valve is connected first cavity and second cavity by pipeline, second cavity is connected with buffer tank by second electromagnetic valve.When gas source pressure changes, adjusting rod moves under the action of pressure difference and spring force, realize the automatic adjustment of gas capacity.The application can automatically adjust supply gas capacity according to gas source pressure change, improve the stability and response speed of pressure control, prolong the service life of electromagnetic valve.
Need to check novelty before this filing date? Find Prior Art