Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2008-05-27
2008-05-27
Eshete, Zelalem (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090160, C123S090170, C701S103000
Reexamination Certificate
active
07377240
ABSTRACT:
In a method for controlling an actuating device of a valve element of an intake system and/or an exhaust gas system of the internal combustion using an actuating variable, a periodic compensation signal is applied, at least intermittently, to the actuating device. The compensation signal generates a periodic counterforce at the valve element which is directed in the opposite direction from the periodic force exerted by the undesired disturbing vibrations of the valve element.
REFERENCES:
patent: 2005/0216179 (2005-09-01), Yasui et al.
Buehrle Ralf
Cois Olivier
Lanusse Patrick
Oustaloup Alain
Wagner Alexandre
Eshete Zelalem
Kenyon & Kenyon LLP
Robert & Bosch GmbH
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