Power plants – Motive fluid energized by externally applied heat – Noncommunicating heat transferring motive fluid system
Patent
1976-09-24
1978-01-31
Ostrager, Allen M.
Power plants
Motive fluid energized by externally applied heat
Noncommunicating heat transferring motive fluid system
60669, F01K 2302, F01K 1104
Patent
active
040708624
ABSTRACT:
A cascaded, two-fluid, rotary Rankine cycle engine is provided having improved efficiency and being capable of operating with a power fluid which is solid at ambient temperature. The engine comprises a rotatable annular boiler containing a first boiler liquid and means to heat this first boiler liquid to generate pressure vapor in the boiler, an expander system for extracting work from the vapor, an annular condenser rotatable with the boiler for condensing the exhaust vapor from the expander, said condenser having heat exchange tubes over which the exhaust vapor is passed to heat a second liquid contained in the tubes to generate pressure vapor therein, the second liquid having a lower boiling point than the first liquid, means for returning the vapor condensate to the boiler, a second expander system for extracting work from the pressure vapor in the heat-exchanging tubes, a rotatable second condenser for condensing the exhaust vapor from the second expander, and means for returning the vapor condensate from the second condenser to the heat-exchange tubes.
REFERENCES:
patent: 1961786 (1934-06-01), Roe
patent: 3266246 (1966-08-01), Heller
patent: 3613368 (1971-10-01), Doerner
patent: 3769796 (1973-11-01), Bechtold
Doerner William Allen
Van Buskirk Oral R.
E. I. Du Pont de Nemours and Company
Ostrager Allen M.
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