Precise pressure regulating valve

A precision pressure regulating valve and pressure regulating technology, applied in the field of pressure regulating valves, can solve the problems of air resistance small hole blocking and complexity, and achieve the effects of not easy blocking, lower requirements and high sensitivity

Active Publication Date: 2013-04-03
WUXI PNEUMATIC TECH INST
View PDF7 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the existing precision pressure regulating valve is extremely complicated, and the processing technology of the

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
  • Precise pressure regulating valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0018] figure 1 It is a structural schematic diagram of the present invention. The pressure regulating valve includes a pressure regulating knob 1, a pressure regulating stud 2, a first sealing ring 5, a first valve body 6, a metal diaphragm box 7, a pilot valve core 8, a pilot valve core seat 9, a second valve body 10, Orifice 11, corrugated diaphragm 12, input port 13, third valve body 14, main valve core return spring 15, main valve core seat 16, second sealing ring 17, third sealing ring 18, output port 19, main Valve core 20, steel ball 21, corrugated diaphragm hard core 22, corrugated diaphragm preload spring 23, pilot spool return spring 24, diaphragm upper chamber 25, diaphragm lower chamber 26, fourth sealing ring 27, output pressure feedback The hole 28, the pilot cavity 29, the feedback cavity 30, the input cavity 31, and the retaining ring 32 consti...

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 relates to a pressure regulating valve which is simple in structure, high in pressure regulating accuracy and low in processing technology of a valve and filtering accuracy of an air source. The pressure regulating valve comprises a feedback cavity, a membrane upper cavity, a membrane lower cavity, an input port and an output port, wherein the feedback cavity and the membrane lower cavity are communicated through an output pressure feedback hole, the membrane upper cavity is internally provided with a throttling hole which is communicated with atmosphere, the membrane upper cavity and the membrane lower cavity are separated by a membrane, the inlet port and the output port are both communicated with the membrane lower cavity, a first through hole is formed between the feedback cavity and the membrane upper cavity, the opening size of the first through hole is regulated through a first flow regulating device, a second through hole is formed between the input port and the membrane lower cavity, and the opening size of the second through hole is regulated through a second flow regulating device. Compared with an existing precise pressure regulating valve, the pressure regulating valve disclosed by the invention only comprises one rubber membrane and three branch valve blocks, the flexibility is high, and the working temperature range is wide.

Description

technical field [0001] The invention relates to a pressure regulating valve, in particular to a pressure regulating valve for precisely controlling the output pressure. Background technique [0002] In a pneumatic system, the pressure required to input pneumatic components such as pneumatic valves and cylinders is generally lower than the pressure of the air source. The gas pressure is adjusted to the pressure required by the pneumatic components and then supplied to the pneumatic components. Paper tension control, screen tensioning, pneumatic positioning and many other fields require a precision pressure regulating valve with a pressure regulation accuracy of 0.1% or more, also known as a precision pressure reducing valve. However, the structures of the existing precision pressure regulating valves are extremely complicated, and the processing technology of the valve and the filtering precision of the air source are very high, otherwise the air resistance small hole is eas...

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
IPC IPC(8): F16K17/32
Inventor 方清华王春丽张连仁
Owner WUXI PNEUMATIC TECH 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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap