The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 05, 2002

Filed:

Mar. 18, 2002
Applicant:
Inventors:

Masakatsu Minowa, Tokyo, JP;

Kazuhiko Watanabe, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 4/104 ; G05D 2/300 ;
U.S. Cl.
CPC ...
F25B 4/104 ; G05D 2/300 ;
Abstract

A heat transmission retardant member is formed of a cup-like shaped resin material utilizing nylon or polyacetals, comprising a collar , and a thick-walled cylinder portion having at the lower end thereof a tapered portion . Said retardant member contacting the outer surface of a heat-sensing driven member . Said retardant member is mounted to said driven member so as to cover the outer surface thereof and being mounted outside the second refrigerant passage , said cylinder portion defining a space between the exterior of the driven member and the interior of said cylinder portion . By the existence of the activated carbon , the hunting phenomenon and the invasion of the refrigerant to a lower chamber is prevented, and the heat from the heat transmission retardant member is transmitted to the heat sensing driven member via space which enables to provide a further retardation to the response of the valve to the temperature change of the refrigant exiting the evaporator. The hunting is further suppressed effectively.


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