Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2005-09-28
2008-11-18
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090150, C123S347000, C464S160000
Reexamination Certificate
active
07451730
ABSTRACT:
In a method for setting the rotary-angle position of the camshaft of a reciprocating piston internal combustion engine relative to the crankshaft, in which the crankshaft has a drive connection to the camshaft via an adjusting gear which is embodied as a triple shaft gear with a drive shaft which is fixed to the crankshaft, an output shaft which is fixed to the camshaft and an adjusting shaft, a phase angle signal for the rotary-angle position of the camshaft relative to the crankshaft is registered. Travel up to a stop is carried out, during which a stop element which is connected to the drive shaft is moved towards a counterstop element which is connected to the camshaft.
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Dell Helko
Nguyen Minh Nam
Stork Holger
Chang Ching
Lucas & Mercanti LLP
Schaeffler KG
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