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. 27, 2007

Filed:

Mar. 11, 2004
Applicants:

Daisuke Watari, Tokyo, JP;

Masamichi Yano, Tokyo, JP;

Inventors:

Daisuke Watari, Tokyo, JP;

Masamichi Yano, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 41/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

The body of a valve has an orifice that internally connects a high-pressure passage through which a refrigerant flows in and a low-pressure passage through which the refrigerant flows out. The valve includes a valve plug for adjusting the flow rate of the refrigerant flowing in the orifice, an operating rod for moving the valve plug in a valve opening direction, and a temperature sensing drive unit for driving the operating rod. A support ring for constraining the spherical valve plug is located on the upper-stream side of the high-pressure passage with respect to the orifice. The support ring is formed of a circular annular portion capable of elastic deformation and vibration-proof springs. The springs support the valve plug.


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