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:
Aug. 09, 2016
Filed:
Oct. 29, 2009
Satoshi Usui, Hitachinaka, JP;
Shingo Tamura, Hitachinaka, JP;
Katsumi Miyazaki, Hitachinaka, JP;
Hiroyuki Yamada, Hitachinaka, JP;
Satoshi Usui, Hitachinaka, JP;
Shingo Tamura, Hitachinaka, JP;
Katsumi Miyazaki, Hitachinaka, JP;
Hiroyuki Yamada, Hitachinaka, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
A high-pressure fuel pump includes a pump housing formed with a recess, a cylinder combined with the pump housing to define the recess as a pressurizing chamber, a holder securing the cylinder to the pump housing, and a plunger sliding against the cylinder to pressurize fluid in the pressurizing chamber. The holder includes an outer cylindrical surface portion fitted to an attachment fitting hole of an engine block of an internal combustion engine, and a cylindrical fitting portion fitted to an outer circumference of the cylinder. The outer cylindrical surface portion and the cylindrical fitting portion are formed in a single piece resulting from machining one and the same member.