Constant speed drive

Details Constant speed drive Constant speed drive

1975-02-07

1976-09-28

Scott, Samuel

192 clutches and power-stop control

Clutches

Operators

192104F, 192 85R, 192 56F, F16D 2502

Patent

active

039826155

ABSTRACT:
A constant speed drive system which is automatically controlled according to the load of the pump, fan, etc. driven by the system. Control of the system is achieved by means of a pump or compressor and a diaphragm-actuated spool valve, wherein a reference point or pressure in a spool valve is matched with a pressure, proportional to the speed of the load or output shaft, acting on a diaphragm in the spool valve. The spool valve, in turn, modulates the pressure to a clutch actuator for a clutch located between a constant speed motor and a shaft driving the requisite load.

REFERENCES:
patent: 3155040 (1964-11-01), Shurts et al.
patent: 3447397 (1969-06-01), Black et al.
patent: 3556271 (1971-01-01), Hilpert
patent: 3563355 (1971-02-01), Goodson et al.
patent: 3621955 (1971-11-01), Black et al.
patent: 3653476 (1972-04-01), Allen et al.
patent: 3849027 (1974-11-01), Blake

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