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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 10669900 B1

PDFFull Text
Date of Patent:
Jun. 02, 2020

Filed:

Jul. 20, 2017

Internal combustion engine having a valve actuation device

Applicant:

Avl List Gmbh, Graz, AT;

Inventors:

Andreas Zurk, Weinburg, AT;

Martin Klampfer, Hitzendorf, AT;

Gernot Hirschl, Althofen, AT;

Assignee:

AVL List GmbH, Graz, AT;

Attorney:

Dykema Gossett PLLC

Primary Examiner:

Jacob M Amick

Int. Cl.
CPC ...
F01L 3/20 (2006.01); F01L 13/06 (2006.01); F01L 1/08 (2006.01); F01L 1/18 (2006.01); F02D 13/04 (2006.01); F01L 13/00 (2006.01); F02D 13/02 (2006.01); F01L 1/344 (2006.01); F01L 1/26 (2006.01); F01L 3/22 (2006.01); F16K 1/54 (2006.01); F01L 3/00 (2006.01);
U.S. Cl.
CPC ...
F01L 3/20 (2013.01); F01L 1/08 (2013.01); F01L 1/181 (2013.01); F01L 1/267 (2013.01); F01L 1/344 (2013.01); F01L 3/22 (2013.01); F01L 13/0047 (2013.01); F01L 13/06 (2013.01); F02D 13/0246 (2013.01); F02D 13/04 (2013.01); F16K 1/54 (2013.01); F01L 2003/11 (2013.01); F01L 2003/25 (2013.01);
Abstract

Aspects of the present disclosure are directed to an internal combustion engine having a valve actuation device and at least one first exhaust valve and one second exhaust valve per cylinder. The first and second exhaust valves may be actuated together in at least one operating area of the internal combustion engine, via an exhaust valve bridge and a first valve lifter, by a first cam lobe of a first exhaust cam arranged on a camshaft. The camshaft having a second exhaust cam with at least one additional cam lobe and at least one second cam lobe A transmission device being arranged in the functional path between the second exhaust cam and the second exhaust valve, the transmission device allowing an idle stroke to be activated or deactivated. The first exhaust cam and the second exhaust cam are configured and arranged to be rotatable relative to one another.

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