Variable displacement fluid pump with transducer interface

Details Variable displacement fluid pump with transducer interface Variable displacement fluid pump with transducer interface

1986-11-17

1987-12-01

Croyle, Carlton R.

Pumps

Processes

417342, F04B 1700, F04B 3500

Patent

active

047101040

ABSTRACT:
Apparatus for providing a variable supply of water under pressure to an hydraulic ring main pressure fluid circuit in, for example, a coal mine, comprises a reciprocating pump in said ring main and an hydraulic reciprocating motor for driving said pump mechanically coupled to said pump, the motor being operated by a variable displacement pump connected in a closed circuit with said motor.

REFERENCES:
patent: 3733965 (1973-05-01), Braun
patent: 4023363 (1977-05-01), Liebert

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