Power plants – Combustion products used as motive fluid – With gear – pressure exchanger – or screw-type compressor
Patent
1978-07-20
1980-09-16
Croyle, Carlton R.
Power plants
Combustion products used as motive fluid
With gear, pressure exchanger, or screw-type compressor
60 3976, 60727, F02C 500
Patent
active
042222311
ABSTRACT:
An engine includes a generally cylindrical housing divided into inlet, combustion chamber, and power housing portions. A shaft is rotatably mounted in the housing. A compressor element is mounted on the shaft for rotation in the inlet portion, an intake and exhaust valve rotor element is mounted on the shaft for rotation in the combustion chamber portion, and a power element is mounted on the shaft for rotation in the power housing. The valve rotor is provided to regulate the flow of compressed air into and out of the combustion chamber. Fuel injection and ignition are suitably timed to occur generally between intake valve closing and exhaust valve opening. Combustion products exit through the exhaust valve into the power rotor. These products rotate the power rotor to drive the compressor and valve rotors. The working surfaces of the compressor and power rotors are helices. The pitch of the compressor rotor helix decreases between the inlet end of the housing and the combustion chamber. The pitch of the power rotor helix increases from the exhaust valve toward an exhaust port. A compressed air storage, or accumulator, portion is provided between the inlet portion and the combustion chamber portion of the housing. A reed valve separates the accumulator from the compressor housing portion to provide a more constant pressure source for the engine at higher operating speed.
REFERENCES:
patent: 969221 (1910-09-01), Thompson
patent: 3175359 (1965-03-01), Szlechter
patent: 3932987 (1976-01-01), Munzinger
Croyle Carlton R.
Look Edward
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