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:
Jun. 15, 2021
Filed:
May. 28, 2020
Applicant:
Mahle International Gmbh, Stuttgart, DE;
Inventors:
Daniel Schatz, Stuttgart, DE;
Johannes Weinmann, Stuttgart, DE;
Assignee:
MAHLE International GmbH, Stuttgart, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F01M 13/00 (2006.01); F01M 11/10 (2006.01); F02D 41/22 (2006.01); F01M 1/20 (2006.01); F01M 1/02 (2006.01); F01M 13/02 (2006.01); F01M 13/04 (2006.01);
U.S. Cl.
CPC ...
F01M 1/20 (2013.01); F01M 1/02 (2013.01); F01M 13/021 (2013.01); F01M 13/04 (2013.01); F01M 2001/0215 (2013.01); F01M 2013/026 (2013.01);
Abstract
An internal combustion engine for a motor vehicle includes a crankcase ventilation device for removing blow-by gas from a crankcase, a pressure sensor being provided for measuring the gas pressure in said crankcase, and a control unit connected to and in communication with the crankcase ventilation device being configured and/or programmed to run a tightness test for said crankcase ventilation device when the internal combustion engine is switched off.