FOUR-WAY VALVE - MITSUBISHI ELECTRIC CORP

Title:

FOUR-WAY VALVE

Document Type and Number:

WIPO Patent Application WO/2006/075433

Kind Code:

A1

Abstract:

A four-way valve of simple structure that even in the flow of high-temperature refrigerant and low-temperature refrigerant in close vicinity of each other, inhibits the occurrence of any heat loss due to heat leakage therebetween. There is provided a four-way valve comprising housing member (5) furnished with valve chest (51); valve seat (6) having seat surface portion (61) disposed in the valve chest (51); second flow channel (2) for passage of low-temperature fluid and first flow channel (1) for passage of high-temperature fluid at given timing both drawn outside the valve chest (51) through the valve seat (6), the first flow channel (1) and second flow channel (2) having respective openings (1a,2a) adjacent to each other at the seat surface portion (61) of the valve seat (6); and valve body (7) disposed in a fashion movable on the seat surface portion (61) of the valve seat (6), wherein between the first flow channel (1) and second flow channel (2) at position close to the openings (1a,2a), there is disposed thermal resistance part (8) capable of inhibiting any heat transfer between these flow channels.

Inventors:

YOSHIMURA SUSUMU (JP)
WAKAMOTO SHINICHI (JP)
NAKASHIMA SHINJI (JP)
SEKIYA TAKASHI (JP)

Application Number:

PCT/JP2005/020175

Publication Date:

July 20, 2006

Filing Date:

November 02, 2005

Export Citation:

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Assignee:

MITSUBISHI ELECTRIC CORP (JP)
YOSHIMURA SUSUMU (JP)
WAKAMOTO SHINICHI (JP)
NAKASHIMA SHINJI (JP)
SEKIYA TAKASHI (JP)

International Classes:

F16K11/065; F16K3/00; F16K11/02; F16K27/00; F16K51/00; F25B41/04

Foreign References:

JP2002221375A	2002-08-09
JPH056264U	1993-01-29
JPS61241571A	1986-10-27
JPH11166640A	1999-06-22
JPH10160009A	1998-06-16
JP2000009366A	2000-01-14
JPS5549104U	1980-03-31
JPH11201297A	1999-07-27
JP2003254453A	2003-09-10

Other References: