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. 09, 2021
Filed:
Jun. 17, 2020
Applicant:
Vitesco Technologies Gmbh, Hannover, DE;
Inventors:
Gerhard Eser, Hemau, DE;
Florian Kleiner, Kehlheim, DE;
Erwin Achleitner, Obertaubling, DE;
Gerhard Haft, Maxhütte-Haidhof, DE;
Assignee:
Vitesco Technologies GmbH, Hannover, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 25/08 (2006.01); B01D 53/04 (2006.01); B01D 53/94 (2006.01); B60K 15/03 (2006.01); F01N 3/029 (2006.01); F01N 3/10 (2006.01); F01N 3/22 (2006.01); F01N 3/24 (2006.01); F02D 41/22 (2006.01);
U.S. Cl.
CPC ...
F02M 25/0836 (2013.01); B01D 53/0446 (2013.01); B01D 53/0454 (2013.01); B01D 53/9454 (2013.01); B60K 15/03 (2013.01); F01N 3/029 (2013.01); F01N 3/101 (2013.01); F01N 3/22 (2013.01); F01N 3/24 (2013.01); F02D 41/22 (2013.01); F02M 25/0854 (2013.01); B01D 2253/102 (2013.01); B01D 2257/702 (2013.01); B01D 2259/401 (2013.01); B01D 2259/40086 (2013.01); B01D 2259/4516 (2013.01); F02D 2041/225 (2013.01);
Abstract
The disclosed embodiments relate to a device for operating a tank ventilation system of an internal combustion engine. This device has a fuel tank, an activated carbon filter for collecting and buffering fuel vapors escaping from the fuel tank, a purge air pump and a control unit. The outlet of the purge air pump is connected to the intake tract of the internal combustion engine via a first tank venting valve and connected to the exhaust tract of the internal combustion engine via a second tank venting valve.