Title:
EXPANSION VALVE
Document Type and Number:
Japanese Patent JP2016023896
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an expansion valve capable of suppressing occurrence of noise due to self-excited vibration of a valve.SOLUTION: An expansion valve includes: an inlet port introducing high-pressure liquid refrigerant; a valve chamber communicating with the inlet port; a valve hole provided in the valve chamber; an outlet port deriving refrigerant expanded at the valve hole toward the outside; a valve member opening/closing the valve hole by contacting to/separating from a valve seat provided at an inlet of the valve hole; a support member supporting the valve member; and a coil spring provided in the valve chamber and energizing the support member toward the valve hole. The expansion valve further includes pressure delay member dividing the valve chamber into a support surface side area and a back surface side area.SELECTED DRAWING: Figure 1
Inventors:
YANAGISAWA HIDE
HAYAKAWA JUNYA
HAYAKAWA JUNYA
Application Number:
JP2014149924A
Publication Date:
February 08, 2016
Filing Date:
July 23, 2014
Export Citation:
Assignee:
FUJI KOKI KK
International Classes:
F25B41/06; F16K31/68; F16K47/02
Attorney, Agent or Firm:
Patent Business Corporation Daiichi International Patent Office
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