Pressure reducing valve

A pressure reducing valve and pressure technology, which is applied in the field of pressure reducing valves, can solve the problems of cost increase and other problems, and achieve the effects of improving sealing performance, reducing cost and realizing weight reduction
CN101790657AInactive Publication Date: 2010-07-28KEIHIN CORP
1 Cites 9 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
KEIHIN CORP
Publication Date
2010-07-28
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A pressure reducing valve in which a diaphragm rod interconnected with a valve body of a valve mechanism is connected to the center of a diaphragm whose peripheral edge is held between a body and a diaphragm cover. The diaphragm (28) is constructed from a disc-shaped rubber plate whose thickness at least at its peripheral edge is uniform in a natural state. The peripheral edge of the diaphragm (28) is compressed and held between a flange (17b) of the diaphragm cover (17) and a holding surface (91) of the body (16), and thus the diaphragm cover (17) is fixed to the body (16). In this state, that portion of the diaphragm (28) which is located between the flange (17b) and the holding surface (91) and at which the gap between them is the smallest is located on the inside radially of that portion of the diaphragm (28) at which the gap is the largest. The construction reduces the weight and cost of the pressure reducing valve, improves sealing ability of the diaphragm, and prevents the diaphragm from coming out of place.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a pressure reducing valve, wherein the peripheral portion of the diaphragm is clamped between the main body of the housing valve mechanism and the diaphragm cover fixed to the main body, and a pressure acting chamber is formed between the diaphragm and the main body , and a spring chamber is formed between the diaphragm and the diaphragm cover, the spring accommodated in the spring chamber is compressed and arranged between the diaphragm case and the diaphragm, and the central part of the diaphragm The connected diaphragm rod is connected to the spool of the valve mechanism. Background technique

[0002] In Patent Document 1, there is known a pressure reducing valve in which a peripheral portion of a diaphragm is sandwiched between a partition wall member and a bottomed cylindrical diaphragm cover, the partition wall member constitutes a part of the main body, and the diaphragm The cover is formed by performing die mol...

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