Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Patent
1999-05-11
2000-09-19
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
123 9031, 123198D, F01L 1300
Patent
active
06119641&
ABSTRACT:
A device for adjusting a valve stroke course of a gas exchange valve includes a first camshaft which is coupled mechanically to a crankshaft, a second camshaft which is coupled mechanically to the first camshaft, an actuating drive which sets the phase of the second camshaft relative to the first camshaft and a transmission member which transmits the stroke of the camshafts to the gas exchange valve. An apparatus and a method for controlling the device have an actuating drive sensor which detects the angle of rotation of a drive shaft of the actuating drive. Furthermore, the apparatus has a determination unit which determines a quantity characterizing the valve stroke course as a function of the angle of rotation.
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Klingseis Bernhard
Koch Achim
Greenberg Laurence A.
Lerner Herbert L.
Lo Weilun
Siemens Aktiengesellschaft
Stemer Werner H.
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