Internal-combustion engines – Combined devices – Generating plants
Patent
1975-03-10
1976-01-27
Freeh, William L.
Internal-combustion engines
Combined devices
Generating plants
418 68, F02B 5300
Patent
active
039345599
ABSTRACT:
The rotary engine includes a casing having a spherical cavity, or working sphere, therein and an engine shaft rotatably mounted in the casing. A driven cylindrical member, or drum, having four combustion chambers therein is rotatably mounted within the casing bisecting the spherical cavity, and said driven member is connected to the engine shaft. A hollow driving circular member, or plate, operatively connected to the driven cylindrical member by passing through the center thereof and is mounted within the spherical cavity, or working sphere, of the casing. The intersection of the driven cylindrical member by the driving circular member forms four spherical wedge-shaped variable volumes referred to as "compression-expansion" chambers, within the working sphere. It is the expansion of the ignited gases within the compression-expansion chambers that drives the circular member, or plate, which in turn rotates the driven cylindrical member, or drum, that drives the engine shaft. Within the hollow circular driving member are four variable volume air "intake compartments" supplied with fresh air through rotating valves on stationary air intake tubes. Air in the intake compartment, after being compressed, is forced into the compression-expansion chamber through plate transfer port holes. The maximum expanded volume of air drawn into the intake compartment is considerably greater than the rated displacement of the combined volumes of the combustion chamber plus the compression-expansion chamber in the working sphere. Part of this air is used to scavenge the combustion chamber of residual burnt exhaust gases, which in passing through the exhaust manifold fosters the process of "after-burning" that reduces pollutants in the exhaust to the outer air. The remaining volume of air in the intake compartment, (still greater than the rated displacement) is then compressed in the combustion chamber, thereby maintaining a high level of "volumetric efficiency" even at high engine speeds.
REFERENCES:
patent: 1880131 (1932-09-01), Gray
patent: 2043544 (1936-06-01), Kempthorne
patent: 2069646 (1937-02-01), Cohen
patent: 3176667 (1965-04-01), Hammer
patent: 3549286 (1970-12-01), Moriarty
Freeh William L.
Koczo, Jr. Michael
Sphero International Company
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