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.:
Date of Patent:
Mar. 09, 2021
Filed:
Apr. 17, 2015
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Masamichi Yagai, Hitachinaka, JP;
Atsushi Hohkita, Hitachinaka, JP;
Hiroyuki Yamada, Hitachinaka, JP;
Masayuki Suganami, Hitachinaka, JP;
Satoshi Usui, Hitachinaka, JP;
Atsuji Saito, Hitachinaka, JP;
Kenichirou Tokuo, Hitachinaka, JP;
Yuta Saso, Hitachinaka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Abstract
To increase a valve-opening pressure at which a pressure relief valve is opened in order to deal with a higher pressure of the fuel, a large pressure relief valve is installed in a high-pressure fuel supply pump. This upsizes the high-pressure fuel supply pump. A pressure relief valve is installed in a discharge joint. This can provide a high-pressure fuel supply pump that is not large too much and sufficiently performs a relief function by efficiently using the excessive space in the pump even when the fuel pressure is increased.