Prime-mover dynamo plants – Miscellaneous – Drive gearing
Patent
1989-12-26
1991-11-19
Pellinen, A. D.
Prime-mover dynamo plants
Miscellaneous
Drive gearing
290 40R, 322 93, H02P 900
Patent
active
050668668
ABSTRACT:
An electrical apparatus for use with a motor vehicle electrical system, which includes an engine-driven alternator, provides a switching circuit for switching the system between a normal-power state and a high-power state. In the normal-power state, the apparatus provides the nominal electrical power needed by the vehicle electrical system and battery. In the high-power state, the apparatus causes the engine-driven alternator to produce a higher voltage and a higher power output for external loads, while still providing the nominal electrical power for the vehicle electrical system and the vehicle battery. In the normal-power mode of operation, the vehicle voltage regulator sees the full voltage generated by the vehicle alternator. In the high-power mode of operation, the vehicle voltage regulator sees only a reduced portion of the full voltage generated by the vehicle alternator. The increased power output from the alternator can be rectified into a high-voltage DC current or can be converted to 60 HZ 110-volt AC power by means of a cycloconverter, for example. A control circuit senses load current in the high-power mode of operation and causes the engine to operate at an increased speed to maintain the increased power output. The control circuit reduces the engine speed to idling speed when there is no load current.
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Hoover Robert L.
Pellinen A. D.
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