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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 10393077 B1

PDFFull Text
Date of Patent:
Aug. 27, 2019

Filed:

Mar. 24, 2016

Fuel pump

Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Daiji Furuhashi, Kariya, JP;

Hiromi Sakai, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Theresa Trieu

Int. Cl.
CPC ...
F03C 2/00 (2006.01); F03C 4/00 (2006.01); F04C 2/00 (2006.01); F04C 18/00 (2006.01); F02M 37/08 (2006.01); F02M 37/10 (2006.01); F04C 2/10 (2006.01); F04C 14/10 (2006.01); F04C 15/00 (2006.01);
U.S. Cl.
CPC ...
F02M 37/08 (2013.01); F02M 37/10 (2013.01); F04C 2/10 (2013.01); F04C 2/102 (2013.01); F04C 14/10 (2013.01); F04C 15/00 (2013.01); F04C 15/0065 (2013.01); F04C 15/0076 (2013.01); F04C 2210/203 (2013.01); F04C 2270/16 (2013.01);
Abstract

A fuel pump includes: an outer gear; an inner gear that is meshed with the outer gear and includes a receiving hole; a rotatable shaft; a contact portion that is formed to be contactable with the receiving hole; and a pump housing that rotatably receives the outer gear and the inner gear and includes a first housing component and a second housing component, between which the inner gear is held in the axial direction. At least one of the receiving hole and the contact portion includes a tilt surface, which is tilted relative to the axis direction. When the rotatable shaft is rotated to a drive rotation side, the receiving hole contacts the contact portion through the tilt surface, so that the receiving hole is urged in a circumferential direction and is also urged toward the first housing component in the axial direction.

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