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.:
Date of Patent:
Mar. 23, 2021
Filed:
Dec. 15, 2017
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Alessandro De Luca, Palese Macchie-Bari, IT;
Luigi Fiorentino, Modugno, IT;
Ottavio Corizzo, Rolla Imperiale, IT;
Tobias Reiser, Ehningen, DE;
Valeria Cecilia Belgiovine, Modugno, IT;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 59/46 (2006.01); F04C 15/06 (2006.01); F04B 53/10 (2006.01); F04B 1/0421 (2020.01); F04B 1/0452 (2020.01);
U.S. Cl.
CPC ...
F02M 59/462 (2013.01); F04B 53/10 (2013.01); F04C 15/064 (2013.01); F02M 2200/02 (2013.01); F02M 2200/04 (2013.01); F04B 1/0421 (2013.01); F04B 1/0452 (2013.01);
Abstract
The invention relates to a pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine, comprising at least one cylinder (), a piston () which is displaceably arranged in the cylinder (), and a pressure valve () for selectively controlling the supply of fuel to the internal combustion engine, wherein the pressure valve () has a closure part () provided with a cavity () that opens to the outside on an end surface () facing the piston () of the closure part ().