Power plants – Motor operated by expansion and/or contraction of a unit of...
Patent
1977-04-26
1979-01-16
Ostrager, Allen M.
Power plants
Motor operated by expansion and/or contraction of a unit of...
60682, 60650, F03G 706, F01B 2900
Patent
active
041342658
ABSTRACT:
Method for developing gas pressure to drive an engine consisting of establishing equal cooperating gas portions in separate containers a close circuit; developing pressure change in one of the portions by changing temperature; establishing communication between containers, allowing pressure equalization in containers by gas flow from container given greater pressure to the other; cutting communication between containers after pressure equalization; redeveloping gas pressure change in one container, obtaining relative pressure increase in the container to which gas flowed by changing the temperature in one container; and driving an engine by establishing gas flow communication between the containers through the engine. System comprising pairs of equal capacity gas containers in a circuit, a tube extending between inlet and outlet of each container, and heat exchanger for changing gas temperature; fluid ducts connecting the each container heat exchanger; hot and cold fluid supply lines leading to one duct; hot and cold fluid return lines leading from another duct; individual supply valves selectively connecting hot fluid and cold fluid supply lines to the first duct; individual return valves selectively connecting hot and cold fluid return line from the second duct; mechanism selectively causing supply and return valves of one container to connect hot fluid supply and return lines to the first and second ducts thereof to heat the gas, increase pressure, causing supply and return valves of the other container to connect cold supply and return lines to first and second ducts to cool the gas, reduce pressure; close circuit passage from each container outlet to an engine and back to the inlet of each container; and by-pass passage across the closed circuit for connecting each container outlet to the other container inlet to establish intercommunication between the containers exclusive of the engine.
REFERENCES:
patent: 2164134 (1939-06-01), Hahnle
patent: 2829501 (1958-04-01), Walls
Ostrager Allen M.
Wong James A.
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