Apparatus for delivering a controllable variable flow of pressur

Details Apparatus for delivering a controllable variable flow of pressur Apparatus for delivering a controllable variable flow of pressur

1989-10-13

1991-05-21

Capossela, Ronald C.

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of...

60486, 417429, F16D 3102

Patent

active

050164406

ABSTRACT:
Apparatus is provided for delivering a controllable, variable flow of pressurized fluid. Conduits define a circulating fluid flow system, the flow system passing through a transducer for transferring energy as a mechanical input or output to or from pressurized fluid circulating in the system. At least first and second volumetric pumps are connected to conduits of the flow system in parallel relation to each other and in flow communication with the transducer. An operating shaft, preferably a single shaft, engages the first and second pumps. Valves and piping are provided for selectively shunting and isolating the first and second pumps from the fluid flow system. Thus, energy applied to the fluid flow system through either the shaft or transducer may be applied to the other of the shaft or transducer with variable pressure and flow velocity in the flow system, depending on whether one or both of the pumps are in operating mode with the flow system.

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