Internal-combustion engines – Reciprocating cylinder – Two-cycle
Patent
1976-08-09
1978-08-01
Garrett, Robert E.
Internal-combustion engines
Reciprocating cylinder
Two-cycle
91400, 92108, 92117R, F02B 5900
Patent
active
041036514
ABSTRACT:
An engine of the air-cooled, super-charged type which includes a stationary piston, a cylinder movable relative to the piston and operable in a first position to provide a compression chamber between adjoining ends of the cylinder and piston. In a second position, the compression chamber is opened to provide purging air flow from a compressor stage. A cooling air flow is provided about the surfaces of the cylinder and piston in both positions of the cylinder and during its travel between those positions.
In a different embodiment of the engine, the internal combustion portion of the engine just described above is combined with a gas turbine stage. Upon firing of the fuel in the compression chamber and the subsequent opening of the chamber, the flow of hot gases is applied to provide a further rotative force to the turbine wheel.
In a still further embodiment of the invention, no timed ignition of the fuel is required but, during the compression stroke of the cylinder, the fuel is ignited in a diesel engine mode of operation.
An additional embodiment of the invention also includes a standard gas turbine engine stage adapted to receive a separate pressurized flow from the compressor to add to the smoothness and to the power output of the combined engine.
REFERENCES:
patent: 1044096 (1912-11-01), Sorg
patent: 1177126 (1916-03-01), Miller
patent: 1211339 (1917-01-01), Outerbridge
patent: 1844478 (1932-02-01), Omo
patent: 2040453 (1936-05-01), Weber
patent: 2458672 (1949-01-01), Zoch
patent: 2786458 (1957-03-01), Luttrell
Dumont Harry R.
Garrett Robert E.
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