Patent ID: 8601990
Filing Date: 2013-12-10
Classification: F01L,H01F

Abstract:
1. A valve operating device for an internal combustion engine, comprising at least one acuating device ( 10 ) which is provided to adjust an axially displaceable cam element ( 12 ) by means of at least one slotted guide track ( 13 , 14 ) and at least one actuating plunger ( 17 ) movable into the guide track ( 13 , 14 ), and a safety unit ( 15 ) which is provided to move the cam element ( 12 ) into a defined basic safety position in at least one operating mode, the safety unit ( 15 ) including a safety guide track ( 11 ) arranged on the cam element ( 12 ), the actuating device ( 10 ) including a bimetallic temperature dependent spring ( 18 ) acting on the actuating plunger ( 17 ) so as to engage the safety guide track ( 11 ) for moving the cam element ( 12 ) into the defined basic safety position upon occurrence of an error, and also for holding the plunger in engagement with the safety guide track ( 11 ) as long as the engine operating temperature is below a predetermined value.