Internal-combustion engines – Combined devices – Generating plants
Patent
1974-09-20
1976-08-24
Croyle, Carlton R.
Internal-combustion engines
Combined devices
Generating plants
418175, F02B 5300
Patent
active
039760375
ABSTRACT:
A rotary engine has an annular stator and an externally rotating rotor, as well as an internally counter-rotating hollow shaft. Compression and expansion chambers are defined at the boundaries between the stator and said rotor and shaft respectively. Triangular valves are provided in circumaxially spaced openings in the stator so as to selectively place the compression and expansion chambers in communication with one another. Each such valve is pivotally mounted adjacent one of its apexes, and has inner and outer sealing surfaces defined adjacent its other two apexes respectively. The outer sealing surface engages the rotor to define the expansion chamber, whereas the inner sealing surface engages the hollow shaft to define the compression chamber. A hollow post pivotally supports each valve and provides fluid for lubrication and cooling to the interior of the valve. The rotor and hollow shaft are preferably made each in one piece, and the valve itself is preferably made of two pieces to accommodate varying thermal rates of expansion between the stator, the rotor and the shaft. The triangular valves are self operating in response to rotation of the rotor and shaft which are driven in opposite directions through a planetary gear system.
REFERENCES:
patent: 1790256 (1931-01-01), Wright
patent: 1849398 (1932-03-01), Bracco
patent: 2500458 (1950-03-01), Hinckley
patent: 2699151 (1955-01-01), Barrett
patent: 3008457 (1961-11-01), Mezzetta
patent: 3230938 (1966-01-01), Hojnowski
Croyle Carlton R.
Koczo, Jr. Michael
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