Rotary heat exchangers in the form of turbines

Details Rotary heat exchangers in the form of turbines Rotary heat exchangers in the form of turbines

1974-04-01

1976-09-07

Davis, Jr., Albert W.

Power plants

Combustion products used as motive fluid

With exhaust treatment

165 86, 165107, F02C 708

Patent

active

039786609

ABSTRACT:
One of two axially spaced annular heat exchangers, interconnected in a closed circuit traversed by a fluidic heat carrier, serves to preheat a flow of ambient air downstream of a compressor which impels that flow toward a combustion chamber where an air-fuel mixture is ignited to drive a turbine coupled with the compressor. The other heat exchanger, which extends radially beyond the first-mentioned heat exchanger to create a thermosiphon effect for the circulation of the carrier, abstracts residual heat from the expanding gas flow downstream of the turbine. In one embodiment, the compressor and the turbine are interconnected by a central shaft surrounded by a coaxial tubular member which carries the two heat exchangers; in another embodiment this relationship is reversed.

REFERENCES:
patent: 3266564 (1966-08-01), Sabatiuk
patent: 3355883 (1967-12-01), Beam, Jr.
patent: 3465518 (1969-09-01), Erwin

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