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:
Nov. 07, 2017
Filed:
Mar. 21, 2016
Dr. Ing. H.c. F. Porsche Aktiengesellschaft, Stuttgart, DE;
Michael Paul, Weissach, DE;
Abstract
An actuating device () is provided for changeover valves () of an internal combustion engine having an adjustable compression ratio. Each changeover valve () is used to control a hydraulic oil flow in hydraulic chambers of an eccentric adjusting device of a respective connecting rod () of the internal combustion engine. Each changeover valve () has a pick-off element () that can be actuated by the actuating device (). The actuating device () has a selector fork () for each changeover valve () and hence for each pick-off element () to be actuated. The selector forks are secured on a support structure () and can be moved from a first selection position into a second selection position against the restoring force of a return element (), and wherein the restoring force of the return element () moves the selector forks () automatically in the direction of the first selection position.