Valve driving apparatus driving a valve apparatus at a high volt

Internal-combustion engines – Poppet valve operating mechanism – Electrical system

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25112901, F01L 904

Patent

active

055379605

ABSTRACT:
A valve driving apparatus has a second electric power source in addition to a main electric power source used in an internal combustion engine. The additional electric power source can be connected in series to the main electric power source so as to supply a high voltage to a solenoid used in the valve driving apparatus. The valve driving apparatus has an electromagnetic linear actuator for reciprocating a valve body of the electromagnetic valve apparatus so as to open or close the electromagnetic valve apparatus. The additional electric power source is provided separately from the main power source. A power source switching unit switches a voltage supplied to the electromagnetic linear actuator between the high voltage and a low voltage. The high voltage is generated by connecting the main electrical power source and the additional electric power source in series. The low voltage is generated by either one of the first electric power source and the second electric power source.

REFERENCES:
patent: 4176624 (1979-12-01), Bielecki et al.
patent: 4719882 (1988-01-01), Kreuter
patent: 4754730 (1988-07-01), Campagna

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