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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 9512836 B1

PDFFull Text
Date of Patent:
Dec. 06, 2016

Filed:

Jun. 15, 2015

Fuel pump for an internal combustion engine

Applicant:

Cummins Inc., Columbus, IN (US);

Inventors:

Anthony A. Shaull, Columbus, IN (US);

Wesley R. Thayer, Columbus, IN (US);

Assignee:

Cummins Inc., Columbus, IN (US);

Attorney:

Foley & Lardner LLP

Primary Examiner:

Alexander Comley

Assistant Examiner:

Nathan Zollinger

Int. Cl.
CPC ...
F02M 59/46 (2006.01); F04B 49/22 (2006.01); F16K 15/02 (2006.01); F04B 53/10 (2006.01); F04B 19/22 (2006.01); F02M 37/00 (2006.01); F02M 63/00 (2006.01); F04B 7/04 (2006.01); F04B 49/24 (2006.01); F04B 53/14 (2006.01); F04B 53/16 (2006.01);
U.S. Cl.
CPC ...
F04B 53/109 (2013.01); F02M 37/0023 (2013.01); F02M 59/464 (2013.01); F02M 63/0033 (2013.01); F04B 7/04 (2013.01); F04B 19/22 (2013.01); F04B 49/22 (2013.01); F04B 49/24 (2013.01); F04B 49/243 (2013.01); F04B 53/10 (2013.01); F04B 53/1087 (2013.01); F04B 53/1092 (2013.01); F04B 53/14 (2013.01); F04B 53/16 (2013.01); F16K 15/025 (2013.01); F16K 15/026 (2013.01);
Abstract

A high-pressure fuel pump for an internal combustion engine. The high-pressure fuel pump includes an improved configuration that beneficially simplifies certain features of the high-pressure fuel pump. The fuel pump possesses an inlet check valve positioned along an inlet fuel circuit and an outlet fuel circuit of the high-pressure pump that provides a path for a low-pressure inlet fuel flow to and a path for a high-pressure output fuel flow from a pumping chamber of the fuel pump. Because of the configuration of the inlet check valve and the outlet check valve, the complexity of high-pressure fuel pump is beneficially reduced, decreasing the cost of components and assembly and improving the life and reliability of high-pressure fuel pump.

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