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:
Jul. 09, 2019

Filed:

May. 10, 2016
Applicant:

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

Inventors:

Tatsuro Koga, Kariya, JP;

Noriya Matsumoto, Kariya, JP;

Seiji Tanizawa, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 37/06 (2006.01); F02M 63/00 (2006.01); F02M 59/46 (2006.01); F02M 69/54 (2006.01); F16K 17/08 (2006.01); F02M 55/02 (2006.01);
U.S. Cl.
CPC ...
F02M 59/462 (2013.01); F02M 37/06 (2013.01); F02M 59/46 (2013.01); F02M 63/005 (2013.01); F02M 69/54 (2013.01); F16K 17/085 (2013.01); F02M 55/025 (2013.01); F02M 2200/30 (2013.01);
Abstract

In a high-pressure pump, a relief valve main body has a rod shape. A relief valve seat portion is integrated with an end of a relief valve main body so as to be capable of contacting a relief valve seat. The relief valve main body is inserted into a guide hole portion of a support portion. The guide hole portion slidably supports an outer wall of the relief valve main body so as to guide a reciprocating movement of the relief valve main body in the axial direction. A fuel guide portion is provided at an end portion of the relief valve main body facing the pressurizing chamber and can guide a flow of the fuel in a direction radially outward of the relief valve main body on the way from the pressurizing chamber toward the valve seat portion.


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