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:
Sep. 17, 2024

Filed:

Nov. 25, 2020
Applicant:

Fujikoki Corporation, Tokyo, JP;

Inventors:

Yutaro Aoki, Tokyo, JP;

Junya Hayakawa, Tokyo, JP;

Yusuke Takahashi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 41/33 (2021.01); F16K 31/00 (2006.01); F25B 41/335 (2021.01);
U.S. Cl.
CPC ...
F25B 41/335 (2021.01); F16K 31/002 (2013.01);
Abstract

Provided are a power element and an expansion valve using same that are capable of obtaining a desired temperature/flow rate characteristic while being low cost. A power element includes a diaphragm; an upper lid member that is joined to one side of an outer circumferential portion of the diaphragm and forms a pressure working chamber PO with the diaphragm; an annular support point adjustment member that is joined to another side of an outer circumferential portion of the diaphragm; a receiving member that is joined to the support point adjustment member and forms a refrigerant inflow chamber LS with the diaphragm, and a stopper member housed in the refrigerant inflow chamber LS, wherein the diaphragm is capable of coming into contact with a support point of the support point adjustment member.


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