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US 4,224,799 AGranted
Gas-operated motor systems
OwnerJohn W. Rilettinventor
Life of this patent
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Abstract
A gas-operated motor system of the stored energy type--as disclosed in U.S. Pat. No. 4,092,830--in which the gas exhausted from the motor is ducted to a chamber during operation of the motor and thereafter compressed back into the gas reservoir vessel. Recompression may be achieved e.g. by providing the exhaust gas chamber with a movable piston, or by running the motor in the reverse mode as a compressor.
Claims10
A fluid pressure operated motor system comprising:
- a fluid pressure operated motor;
- a reservoir vessel adapted to contain pressurized fluid;
- a passage for the supply of pressure fluid from said vessel to a working chamber of the motor;
- a container holding a buffer substance in heat exchange relationship with said pressure fluid;
- an exhaust chamber arranged to receive the pressure fluid exhausted from the motor during operation thereof;
- and means for recompressing the exhaust from said exhaust chamber back into the reservoir vessel when said motor is not performing a work output function.
3 more elements
Dependencies are inferred from the claim text.