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:
Sep. 15, 2026
Filed:
May. 30, 2022
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd., Sagamihara, JP;
Kensho Kato, Tokyo, JP;
MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD., Sagamihara, JP;
Abstract
A fuel pump comprising: a pump head (); a plunger barrel () provided with a support hole () and having one end portion side of the support hole () in the axial direction fastened to the pump head (); a plunger () supported by the support hole () so as to move along the axial direction; a pressurizing chamber () defined by one end portion of the support hole () and one end portion of the plunger () in the axial direction; a fuel discharge passage () having one end portion communicating with the pressurizing chamber (); a fuel suction passage () having one end portion communicating with the fuel discharge passage; and a recessed portion () provided to at least one of the inner surface of the one end portion of the support hole () and the outer surface of one end portion of the plunger ().