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:
Oct. 08, 2024
Filed:
Aug. 30, 2021
Applicant:
Hitachi Astemo, Ltd., Hitachinaka, JP;
Inventors:
Satoshi Usui, Hitachinaka, JP;
Minoru Hashida, Hitachinaka, JP;
Assignee:
HITACHI ASTEMO, LTD., Ibaraki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 59/46 (2006.01); F02M 55/04 (2006.01);
U.S. Cl.
CPC ...
F02M 55/04 (2013.01); F02M 59/46 (2013.01); F02M 2200/315 (2013.01);
Abstract
A fuel pump includes a damper, a suction valve chamber, a pressurization chamber, a relief valve chamber, a relief valve mechanism, and a shock wave absorber. The shock wave absorber is provided in the relief valve chamber, and is disposed to face the relief valve holder on the downstream side in the direction in which the relief valve holder moves when the relief valve mechanism is released.