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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 10352283 B1

PDFFull Text
Date of Patent:
Jul. 16, 2019

Filed:

Jul. 08, 2014

Internal combustion engine fuel, preferably diesel fuel, feed pump assembly

Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Manuel Tavani, Bitritto, IT;

Rocco Guarino, Modugno, IT;

Fabio Damiani, Modugno, IT;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:

Michael Best & Friedrich LLP

Primary Examiner:

Patrick Hamo

Assistant Examiner:

Joseph S Herrmann

Int. Cl.
CPC ...
F02M 59/46 (2006.01); F02M 59/06 (2006.01); F02M 59/10 (2006.01); F02M 59/44 (2006.01); F04B 1/04 (2006.01); F04B 53/10 (2006.01);
U.S. Cl.
CPC ...
F02M 59/46 (2013.01); F02M 59/06 (2013.01); F02M 59/102 (2013.01); F02M 59/442 (2013.01); F02M 59/464 (2013.01); F04B 1/0452 (2013.01); F04B 1/0456 (2013.01); F04B 53/1025 (2013.01); F04B 53/1087 (2013.01);
Abstract

Internal combustion engine fuel, preferably diesel fuel, feed pump assembly, the pump assembly () comprising a pump body (); at least one cylinder () formed in the pump body () and extending along an axis (A); a seat () formed in the pump body (), at one end of the cylinder (); an intake valve () for selectively controlling fuel feed into the cylinder (), which is housed inside the seat () and in turn comprises a valve body (); and an annular seal () extending around the axis (A) and fitted inside the seat () between the valve body () and the pump body (); the pump assembly () being characterized in that the valve body () is positioned contacting the annular seal () along a contact surface () of the valve body () and close to a surface portion adjacent to a radially inner peripheral edge () of the seal (); the valve body () having an annular step () along another surface portion adjacent to a radially outer peripheral edge () of the seal ().

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