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.

Date of Patent:
Jan. 05, 2021

Filed:

Mar. 30, 2017
Applicant:

Denso Corporation, Kariya, JP;

Inventors:

Shinichiro Koshimoto, Kariya, JP;

Masaharu Nakaoka, Kariya, JP;

Shinobu Oikawa, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 55/04 (2006.01); F02M 59/36 (2006.01); F02M 59/46 (2006.01); F02M 55/00 (2006.01); F02M 59/44 (2006.01);
U.S. Cl.
CPC ...
F02M 55/04 (2013.01); F02M 55/00 (2013.01); F02M 59/36 (2013.01); F02M 59/44 (2013.01); F02M 59/46 (2013.01); F02M 55/008 (2013.01); F02M 2200/30 (2013.01);
Abstract

A housing-includes a pressurizing chamber. A plunger is moved to increase and decrease a volume of the pressurizing chamber, so that the plunger can pressurize the fuel in the pressurizing chamber. A fuel chamber forming portion is placed on a radially outer side of the plunger and forms a fuel chamber that is communicated with the pressurizing chamber. A pulsation damper is placed in an inside of the fuel chamber and is operable to reduce pressure pulsation of the fuel in the fuel chamber. Fixable portions are placed on a radially outer side of the plunger while each of the fixable portions includes a receiving through-hole. The fixable portions are fixed to an engine with bolts, which are provided to correspond with the receiving through-holes, respectively. The fuel chamber forming portion is displaced from axes of the receiving through-holes.


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