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:
May. 18, 2021

Filed:

May. 17, 2018
Applicant:

Aisin Aw Co., Ltd., Anjo, JP;

Inventors:

Tetsuya Shimizu, Anjo, JP;

Toru Sugiyama, Anjo, JP;

Masaya Iwata, Okazaki, JP;

Assignee:

AISIN AW CO., LTD., Anjo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 17/04 (2006.01); F16K 17/06 (2006.01); F16K 15/04 (2006.01); F16K 27/02 (2006.01);
U.S. Cl.
CPC ...
F16K 17/044 (2013.01); F16K 17/06 (2013.01); F16K 15/044 (2013.01); F16K 17/048 (2013.01); F16K 17/0473 (2013.01); F16K 27/02 (2013.01); Y10T 137/7925 (2015.04);
Abstract

A relief valve that includes a tube; a valve configured to slide along an inner wall of the tube in an axial direction, and a spring that urges the valve, wherein the valve has a hydraulic pressure receiving surface on a first axial side that is one side in the axial direction, and a spring abutment against which the spring abuts, on a second axial side opposite to the first axial side, and the tube has a discharge oil passage having an opening in the inner wall and extending through the inner wall in a radial direction.


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