Power plants – Motive fluid energized by externally applied heat – Power system involving change of state
Patent
1979-09-04
1982-05-04
Chambers, A. Michael
Power plants
Motive fluid energized by externally applied heat
Power system involving change of state
60649, 60671, F01K 2506
Patent
active
043275532
ABSTRACT:
A gas powered motor has a reservoir for liquefied gas, a supply passage from the reservoir leading through one side of a heat exchanger to the motor and a container holding a buffer substance in heat conductive relationship with the reservoir. The buffer substance acts to supply heat to the liquefied gas while undergoing a chemical, physical crystallographic or other change of state to assist in maintaining the supply of gas to the motor from the reservoir. The motor exhaust leads to a vessel containing a condensing buffer substance which absorbs, persorbs or otherwise associates with the gas accompanied by a release of heat. The condensing buffer substance is in heat conductive relation with the other side of the heat exchanger in the gas supply to the motor to superheat the gas supplied. The condensing buffer substance is capable of releasing the gas when subjected to reduced pressure by a pump provided which may be the gas motor run in reverse to extract the gas from the vessel and return it to the reservoir. In another embodiment the condensing buffer substance comprises an isothermal heat sink provided, for example, by a concentrated salt solution.
REFERENCES:
patent: 3872672 (1975-03-01), Rein
patent: 3987632 (1976-10-01), Pereda
patent: 4092830 (1978-06-01), Rilett
patent: 4195485 (1980-04-01), Brinkerhoff
patent: 4224799 (1980-09-01), Rilett
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