Valve controller

Details Valve controller Valve controller

2006-10-17

2006-10-17

Trieu, Thai-Ba (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090110, C123S321000, C123S090180, C251S129110, C251S264000, C251S249500, C701S101000, C701S105000

Reexamination Certificate

active

07121240

ABSTRACT:
The valve controller is driven by a motor. The valve controller has a control circuit and a driving circuit. The driving circuit drives a motor based on a control signal generated by the control circuit and a rotational position signal generated by a rotational position sensor. The driving circuit generates a rotation number signal representing an actual rotation number of the motor according to the rotational position signal, and transfers the rotation number signal to the control circuit.

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patent: U-4-105906 (1992-09-01), None
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