Valve timing controller

Details Valve timing controller Valve timing controller

2006-12-12

2006-12-12

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090110, C123S090170, C251S129010

Reexamination Certificate

active

07146944

ABSTRACT:
The valve timing controller is driven by a motor. The valve controller has a control circuit and a driving circuit. The driving circuit receives a control signal generated by the control circuit and an engine rotation speed signal. The driving circuit supply a current to the motor to drive it based on the engine rotation speed represented by engine rotation speed signal and a target variation of the motor rotation speed represented by the control signal.

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patent: 6129061 (2000-10-01), Okuda et al.
patent: 6799553 (2004-10-01), Takenaka et al.
patent: 6953013 (2005-10-01), Tani
patent: 4-105906 (1992-09-01), None
patent: 5-308794 (1993-11-01), None
patent: 11-324625 (1999-11-01), None

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