Supercharge Your Innovation With Domain-Expert AI Agents!

A direct-acting relief valve

An overflow valve and direct-acting technology, which is applied in the directions of lift valve, valve details, safety valve, etc., can solve the problems of overflow valve steady-state error, achieve the reduction of total stiffness, solve the problem of large steady-state error of work, Solve the effect of large fluctuations in the steady state process

Active Publication Date: 2018-03-23
OCEAN UNIV OF CHINA
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large spring stiffness, the steady-state error of the relief valve will be large

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 direct-acting relief valve
  • A direct-acting relief valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1, such as figure 2 As shown, this embodiment discloses a direct-acting relief valve, including a valve body 1, a valve sleeve 2 with a cavity is arranged inside the valve body 1, and an end cover 3 arranged at the top of the valve body 1 extends into the valve body 1 and connected with the valve sleeve 2, the bottom of the valve sleeve 2 is provided with a liquid outlet 4 and a valve seat 5, the valve seat 5 is provided with a liquid inlet 6, and the valve core 7 is arranged in the cavity of the valve sleeve 2 and can be moved along the The valve sleeve 2 moves up and down, when the valve core 7 is against the valve seat 5, the connection between the liquid inlet 6 and the liquid outlet 4 is disconnected, and when the valve core 7 is separated from the valve seat 5, the liquid inlet 6 and the liquid outlet 4 are connected , A pressure regulating spring 8 is set between the end cover 3 and the valve sleeve 2, the top end of the pressure regulating spring 8 is c...

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 discloses a direct-acting overflow valve which comprises a valve body, wherein a cavity-bearing valve bush is arranged in the valve body; the bottom end of the valve bush is provided with a liquid outlet and a valve seat; the valve seat is provided with a liquid inlet; when the valve core abuts against the valve seat, the liquid inlet is disconnected from the liquid outlet; and when a pressure regulation spring is arranged between the end cover and the valve bush, the top end of the pressure regulation spring is connected with a regulating lever fixed to the end cover, and the bottom end is connected with a seal piston arranged on the top end of the valve core in the valve bush cavity, and a closed gas chamber, which is filled with a high-pressure gas, is formed among the seal piston, valve core and valve bush. According to the direct-acting overflow valve, the pressure regulation spring acts on the valve core through the high-pressure gas (air spring), so that the air spring is connected with the common spring in series; since the rigidity of the air spring is low, the overall rigidity after series connection is reduced; and since the air spring has the buffering and damping functions due to the compressibility of the air, the steady-state error of the overflow valve can be correspondingly reduced by reducing the pressure overshoot of the overflow valve.

Description

technical field [0001] The invention belongs to the field of hydraulic control components, in particular to a direct-acting overflow valve based on an air spring in the field. Background technique [0002] Due to the advantages of rapid response, pollution resistance, and low cost, overflow valves are widely used in transportation, engineering equipment, military equipment and other fields. The working principle of the common direct-acting relief valve is as follows: figure 1 shown. [0003] The working characteristic of the overflow valve is that when the hydraulic pressure acting on the valve core rises above the pressure regulating spring force, the valve core will leave the valve seat and open the valve port, so the liquid in the valve overflows back to the water tank through the valve port. At this time, the valve has a certain opening degree, and the liquid flow state at the valve port satisfies the pressure flow equation. The inlet pressure of the valve mainly depen...

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): F16K17/06F16K1/38F16K47/00F16F13/00F15B13/02
CPCF15B13/022F16F13/002F16K17/0433F16K17/044F16K47/00
Inventor 杨友胜曾祥峰卢青松杨翊坤
Owner OCEAN UNIV OF CHINA
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com