Pumps – Condition responsive control of pump drive motor – By stopping pump in response to leakage into or from system
Patent
1980-03-31
1981-10-06
Croyle, Carlton R.
Pumps
Condition responsive control of pump drive motor
By stopping pump in response to leakage into or from system
417 44, 417319, 417374, F04B 4910
Patent
active
042932815
ABSTRACT:
A compressor system which may be mounted for mobile use including dual power systems for driving the compressor. An electric motor is located in driving relationship to the compressor so that air is compressed when the rotor shaft of the motor is rotated. Rotation of the rotor shaft may be accomplished either by energizing the stator of the motor or by driving the rotor directly from an associated engine, coupled thereto by means of an electromagnetic clutch. If desired, the engine may also be utilized to drive a generator in order to provide electrical power to other devices. The control circuit may include safety interlocks which prevent energization of both the electric motor and the electromagnetic clutch simultaneously. Other safety devices may also be employed to disconnect power from the motor and the clutch, as necessary, if certain contaminants are sensed in the compressed air, to shut off the engine for over-limit conditions of temperature, air pressure, and the like.
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Bissell Henry M.
Croyle Carlton R.
Look Edward
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