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.

Date of Patent:
Jul. 12, 2022

Filed:

Sep. 21, 2018
Applicant:

Daimler Ag, Stuttgart, DE;

Inventor:

Matthias Lahr, Schwaebisch Gmuend, DE;

Assignee:

Daimler AG, Stuttgart, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L 1/047 (2006.01); F01L 1/18 (2006.01); F01L 1/22 (2006.01); F01L 1/26 (2006.01); F01L 13/06 (2006.01); F01M 9/10 (2006.01);
U.S. Cl.
CPC ...
F01L 1/047 (2013.01); F01L 1/18 (2013.01); F01L 1/22 (2013.01); F01L 1/26 (2013.01); F01L 13/06 (2013.01); F01M 9/10 (2013.01);
Abstract

A valve train includes a camshaft which has a cam group having a firing cam and a braking cam. A first cam follower is assigned to the firing cam with the first cam follower being provided in a firing mode for actuating a gas exchange valve. A second cam follower is assigned to the braking cam which is provided in a braking mode for actuating the gas exchange valve. A changeover device is provided to changeover between the firing mode and the braking mode. The camshaft has a separate switching cam which, in at least one operating mode, is provided to act directly on a switching element of the changeover device and which is provided for a direct changeover between the firing mode and the braking mode.


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