Power plants – Pressure fluid source and motor – Cyclically operable reciprocating or oscillating motor or...
Patent
1988-01-13
1988-11-15
Garrett, Robert E.
Power plants
Pressure fluid source and motor
Cyclically operable reciprocating or oscillating motor or...
60407, 60495, 91 4R, 417375, 417397, 417401, F15B 1302, F15B 2104
Patent
active
047839619
ABSTRACT:
An energy recovery system is disclosed for recovering energy of highly pressurized natural gas when it is depressurized prior to distribution. The system includes a processing vessel which defines a bounded volume. The vessel is partially filled with water. A shaft extends through an aperture formed in the processing vessel with the shaft reciprocally moveable through said aperture. A conduit connects the high pressure natural gas to a gas inlet disposed within the processing vessel. The inlet is disposed beneath the level of the water within the vessel. Gas flows from the inlet in a predetermined path toward the water level. An exhaust conduit connects an outlet of the processing vessel to an expansion tank. The outlet is disposed above the water level within the vessel. A lift chamber is connected to the shaft and has an opening disposed to admit gas flowing along the predetermined path. The chamber is sized for gas collected within the chamber to urge the shaft to move toward the water level. Valves are provided for releasing collected gas from the chamber when the shaft has moved to a predetermined location. As a result, the shaft continuously reciprocates within the processing vessel as pressurized gas flows to the expansion tank for depressurization. The reciprocating movement of the shaft is utilized to translate the mechanical movement into usable energy for performing work.
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Garrett Robert E.
Kapsalas George
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