Torque control for a fluid operated motor

Details Torque control for a fluid operated motor Torque control for a fluid operated motor

1980-03-20

1982-03-09

Cohan, Alan

Motors: expansible chamber type

Torque responsive motive fluid control

91358R, 91364, 173 8, B25B 2314

Patent

active

043183344

ABSTRACT:
A torque control for a fluid operated motor includes a first gear to be driven through operation of the motor and a second gear in driving engagement with said motor and maintained in a generally stationary position during normal operation thereof. The torque control further includes a drive mechanism connected to the first gear and to a load to be rotationally driven through operation of the motor. A valve is provided in the fluid supply to the motor to open and close the supply of fluid thereto. Disconnect means is operatively connected to the second gear and the valve to maintain said valve in an open position to permit supply of fluid to said motor when the second gear is stationary. The second gear rotates when the torque required from the motor to rotate the load exceeds a predetermined magnitude to move the disconnect means relative to the valve to close the valve to terminate the supply of fluid to the motor.

REFERENCES:
patent: 1815345 (1931-07-01), Colman
patent: 2784703 (1951-03-01), Davis
patent: 3612236 (1971-10-01), Fernstrom
patent: 3766990 (1973-10-01), Eckman
patent: 3767320 (1973-10-01), Theis

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