Pressure regulating valve

Patent metadata

Field	Value
Publication number	US-2016281871-A1
Application number	US-201615070255-A
Country	US
Kind code	A1
Filing date	Mar 15, 2016
Priority date	Mar 26, 2015
Publication date	Sep 29, 2016
Grant date	—

Abstract

A pressure regulating valve includes a valve element placed in a valve chamber, a piston placed in a pressure regulating chamber, a valve seat that partitions between the valve chamber and the pressure regulating chamber, and a valve spring that urges the valve element toward the valve seat. The piston is placed in a position toward which the valve spring urges the valve element. The pressure regulating valve further includes a terminal block provided with the valve chamber and a body member provided with the pressure regulating chamber. The valve seat is held in close contact relation between the terminal block and the body member.

First claim

What is claimed is:

1 . A pressure regulating valve including a valve chamber and a pressure regulating chamber, the pressure regulating valve comprising:
a valve element placed in the valve chamber; a piston placed in the pressure regulating chamber; a valve seat member that partitions between the valve chamber and the pressure regulating chamber; and an urging member that urges the valve element toward the valve seat member, the piston being placed in a position toward which the urging member urges the valve element, wherein the pressure regulating valve further comprises:
an inlet member provided with the valve chamber; and
a body member provided with the pressure regulating chamber, and
the valve seat member is held in close contact relation between the inlet member and the body member.

2 . The pressure regulating valve according to claim 1 , wherein
the inlet member is provided with an inlet-member leading end portion which contacts with the body member, one of the inlet-member leading end portion and the body member is formed with a protrusion and the other is formed with a recess, and the protrusion and the recess are fitted with each other.

3 . The pressure regulating valve according to claim 1 ,
wherein the piston is provided with a rod-like portion having a leading end face which contacts with the valve element, and the rod-like portion is formed to be thinner toward the leading end face.

4 . The pressure regulating valve according to claim 1 , wherein, in a direction perpendicular to an axial direction of the valve chamber, one of an outer peripheral surface of the valve element and an inner wall surface of the valve chamber has a circular or nearly circular cross-section and the other has an odd polygonal cross-section.

5 . The pressure regulating valve according to claim 1 , wherein the body member is made of material having lower pressure resistance than the inlet member.

Assignees

• Aisan Ind

Inventors

• Kobayashi Masahiro
• Fukuda Hideyuki
• Hata Katsuyuki
• Nakamura Kazuhiro

Classifications

• F16K17/12 Primary

  weight-loaded · CPC title

• F16K1/14

  with ball-shaped valve member (check valves F16K15/04) · CPC title

• Y02T10/30

  Use of alternative fuels, e.g. biofuels · CPC title

• G05D16/103

  the sensing element placed between the inlet and outlet (multiple-way valve G05D16/101) · CPC title

• G05D16/0402

  with two or more controllers mounted in series · CPC title