logo

For the Inventor, By the Inventor

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.

Patent No.:

US 8763634 B1

PDFFull Text
Date of Patent:
Jul. 01, 2014

Filed:

Jul. 10, 2012

Relief device for oil pump

Applicants:

Nobuyuki Akaishi, Saitama, JP;

Masataka Ikawa, Saitama, JP;

Yasuhiro Ueta, Saitama, JP;

Takuji Ishioka, Saitama, JP;

Hidehiko Kamiyama, Tochigi, JP;

Takuya Yamazaki, Tochigi, JP;

Yoshiro Umezawa, Gunma, JP;

Hirokazu Inoue, Gunma, JP;

Yoshitaka Kurokawa, Gunma, JP;

Inventors:

Nobuyuki Akaishi, Saitama, JP;

Masataka Ikawa, Saitama, JP;

Yasuhiro Ueta, Saitama, JP;

Takuji Ishioka, Saitama, JP;

Hidehiko Kamiyama, Tochigi, JP;

Takuya Yamazaki, Tochigi, JP;

Yoshiro Umezawa, Gunma, JP;

Hirokazu Inoue, Gunma, JP;

Yoshitaka Kurokawa, Gunma, JP;

Assignees:

Honda Motor Co., Ltd., Tokyo, JP;

Yamada Manufacturing Co., Ltd., Kiryu-Shi, Gunma-Ken, JP;

Attorney:

McGinn IP Law Group, PLLC

Primary Examiner:

John Rivell

Assistant Examiner:

R K Arundale

Int. Cl.
CPC ...
F16K 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A relief device includes a relief housing constituted by a relief inflow portion, a valve passage portion, a recess, and an oil discharge portion having a relief hole; a relief valve having a small-diameter portion between a first large-diameter portion and a second large-diameter portion; and a spring elastically biasing the relief valve toward the relief inflow portion. The recess is formed at a position that is closer to the relief inflow portion side than to the oil discharge portion, the axial length of the recess is larger than the axial length of the first large-diameter portion of the relief valve, and the shortest axial distance between the recess and the relief hole is less than the axial length of the small-diameter portion.

Find Patent Forward Citations

Quick Actions:

Akaishi, Nobuyuki. (2014). Relief device for oil pump (U.S. Patent No. 8763634). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8763634

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…