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:
May. 04, 2021
Filed:
Apr. 05, 2018
Applicant:
Robert Bosch Gmbh, Stuttgart, DE;
Inventors:
Thomas Farr, Ludwigsburg, DE;
Yihao Zhu, Stuttgart, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 51/00 (2006.01); F01N 11/00 (2006.01); F04B 49/06 (2006.01); F04B 13/00 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F04B 51/00 (2013.01); F01N 11/00 (2013.01); F04B 13/00 (2013.01); F04B 49/065 (2013.01); F01N 3/2066 (2013.01); F01N 2550/05 (2013.01); F01N 2610/02 (2013.01); F01N 2610/1433 (2013.01); F01N 2610/1473 (2013.01); F01N 2900/1808 (2013.01); F01N 2900/1822 (2013.01); F04B 2201/0803 (2013.01); F04B 2205/09 (2013.01);
Abstract
A method for monitoring the volumetric flow of a metering valve () of a fluidic metering system () of an internal combustion engine, in which at least one feed pump () for feeding a fluid is arranged, the feed pump () being connected to a feed line () and to a return line (), and it being provided in particular that an inner leakage of the feed pump () is determined and that the volumetric flow of the metering valve () is monitored on the basis of ascertained () pressure values on the basis of the determined inner leakage of the feed pump ().