Title:
EXPANSION VALVE
Document Type and Number:
Japanese Patent JP2018035993
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an expansion valve capable of suppressing generation of noise caused by vibration of a valve member even when receiving force in the direction of oscillation of a support member that supports the valve member.SOLUTION: An expansion valve includes: a power element; a valve body having a valve chamber, a valve hole communicated with the valve chamber, a valve seat formed in an opening on the valve chamber side of the valve hole and the like; a valve member disposed to come into contact with the valve seat; a support member for supporting the valve member; a valve rod for driving the valve member; and a vibration isolation spring with which an outer peripheral surface of the support member slidably contacts. The vibration isolation spring includes at least: a cylindrical or annular body portion; a first sliding arm coming into contact with the outer peripheral surface of the support member at a first height in the central axis direction the body portion; and a second sliding arm coming into contact with the outer peripheral surface of the support member at a second height different from the first height in the central axis direction the body portion.SELECTED DRAWING: Figure 4
Inventors:
YAMAGUCHI TOMOYA
KOBAYASHI KAZUTO
KOBAYASHI KAZUTO
Application Number:
JP2016169044A
Publication Date:
March 08, 2018
Filing Date:
August 31, 2016
Export Citation:
Assignee:
FUJI KOKI KK
International Classes:
F25B41/06; F16K31/68; F16K47/02
Domestic Patent References:
| JP2004293779A | 2004-10-21 |
Foreign References:
| US4542852A | 1985-09-24 |
Attorney, Agent or Firm:
Patent Business Corporation Daiichi International Patent Office