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:
Jul. 14, 2020
Filed:
May. 14, 2019
Mahle International Gmbh, Stuttgart, DE;
Patrick Altherr, Stuttgart, DE;
Thorsten Ihne, Stuttgart, DE;
Mahle International GmbH, , DE;
Abstract
A valve drive of an internal combustion engine may include a camshaft, at least one cam follower, and a hydraulic actuating element. The camshaft may include at least one first cam structured as a brake cam and a second cam structured as an exhaust cam. The at least one first cam may have a reduced cam lift relative to the second cam. The at least one cam follower may be connected to an exhaust valve of the internal combustion engine via a rocker. The hydraulic actuating element may include a plunger that is adjustable to an extended position and a retracted position. When the plunger is in the extended position, the hydraulic actuating element may be operatively connected to the brake cam providing a braking stroke. When the plunger is in the retracted position, the hydraulic actuating element may be operatively disconnected from the brake cam providing a cylinder cutout.