US 9,810,162 B2
Actuating device for changeover valves of an internal combustion engine and internal combustion engine
Michael Paul, Weissach (DE)
Assigned to Dr. Ing. h.c. F. Porsche Aktiengesellschaft, (DE)
Filed by Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Stuttgart (DE)
Filed on Mar. 21, 2016, as Appl. No. 15/75,821.
Claims priority of application No. 10 2015 106 315 (DE), filed on Apr. 24, 2015.
Prior Publication US 2016/0312714 A1, Oct. 27, 2016
Int. Cl. F02D 15/02 (2006.01); F02B 75/04 (2006.01); F16C 7/06 (2006.01)
CPC F02D 15/02 (2013.01) [F02B 75/045 (2013.01); F16C 7/06 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An actuating device for changeover valves of an internal combustion engine having an adjustable compression ratio, each changeover valve being 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 having a pick-off means that can be actuated by the actuating device, the actuating device comprising: a selector fork for each changeover valve and for each pick-off means to be actuated, the selector forks being secured on at least one support structure, and being moveable from a first selection position into a second selection position against a restoring force of at least one return element, wherein the restoring force of the at least one return element moves the selector forks automatically in a direction of the first selection position.