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:
Sep. 08, 2020
Filed:
Jan. 24, 2018
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Harald Elendt, Altendorf, DE;
Dimitri Schott, Wachenroth, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
The invention relates to a variable valve drive of an internal combustion engine, comprising at least one functionally identical gas exchange valve per cylinder, the valve stroke of which is specified by at least one primary cam and at least one secondary cam of a camshaft. The valve stroke can be selectively transmitted to the at least one gas exchange valve by a switchable cam follower which has a primary lever and a secondary lever. A coupling element of the switchable cam follower is designed as a coupling pin which is guided in a transverse bore of the primary follower, which can be moved into an opposite coupling bore of the secondary lever by a switching pin. An outer end of the switching pin is connected to a switching rod via a connecting element, the switching rod arranged parallel to the camshaft and longitudinally movable by an actuator.