Invention Grant
- Patent Title: Variable lift valve train of an internal combustion engine
- Patent Title (中): 内燃机的可变升程气门机构
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Application No.: US14624837Application Date: 2015-02-18
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Publication No.: US09540970B2Publication Date: 2017-01-10
- Inventor: Markus Popp , Jan Pfannenmuller
- Applicant: Schaeffler Technologies AG & Co. KG
- Applicant Address: DE Herzogenaurach
- Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
- Current Assignee: SCHAEFFLER TECHNOLOGIES AG & CO. KG
- Current Assignee Address: DE Herzogenaurach
- Agency: Volpe and Koenig, P.C.
- Priority: DE102014203001 20140219
- Main IPC: F01L1/34
- IPC: F01L1/34 ; F01L13/00

Abstract:
A method for operating an internal combustion engine with a sliding cam valve train that has a cam part (2) with three adjacent cams of different lifts (H, M, L) and a groove-shaped connecting link path with two path sections (S1, S2) that lift in both axial directions of the cam part and are arranged completely one behind the other around the circumference is provided. An actuator (10) selectively couples two actuator pins (7, 8) in the connecting link path, in order to move the cam part. The base position of the cam part should be moved into a desired axial position during the operation of the internal combustion engine through successive coupling of the actuator pins in the connecting link path.
Public/Granted literature
- US20150233271A1 VARIABLE LIFT VALVE TRAIN OF AN INTERNAL COMBUSTION ENGINE Public/Granted day:2015-08-20
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