Control circuit for engine speed governor with power take off

Details Control circuit for engine speed governor with power take off Control circuit for engine speed governor with power take off

1980-07-14

1983-02-08

Cox, Ronald B.

Internal-combustion engines

Engine speed regulator

Having condition responsive means with engine being part of...

123353, 123361, 180179, 180174, F02D 1110

Patent

active

043722652

ABSTRACT:
A control circuit for a speed governor is disclosed which provides governing action of one type for operation in a normal engine speed governing mode and governing action of a different type for engine operation in a power take off (PTO) mode. In the normal mode, the throttle control means is actuated between wide open throttle and a close throttle reference position. In the PTO mode the throttle control means is actuated between an open throttle reference position and the close throttle reference position. An overspeed sensing circuit is operative to allow the throttle control means to be driven past the close throttle reference position in an overspeed condition. A PTO selector switch is provided which is operative to provide different governed speeds for the PTO and normal modes. A PTO initiating circuit causes the throttle control means to be driven to the close throttle reference position and it operatively connects an oscillator circuit with the logic means to modulate the motor energization and thereby operate the motor at reduced speed in the PTO mode.

REFERENCES:
patent: 3722485 (1973-03-01), Ohtani
patent: 3722614 (1973-03-01), Sakakibara
patent: 3885644 (1975-05-01), Seidler
patent: 4090480 (1978-05-01), Kasiewicz
patent: 4181103 (1980-01-01), Sturdy
patent: 4188926 (1980-02-01), Fleischer
patent: 4245599 (1981-01-01), Des Lauriers

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