Internal-combustion engines – Combined devices – Generating plants
Patent
1975-01-20
1976-10-12
Croyle, Carlton R.
Internal-combustion engines
Combined devices
Generating plants
123 805, 418 36, 418121, F02B 5300
Patent
active
039851109
ABSTRACT:
A multi-stroke engine for converting energy into torque is described including two rotors and a housing along surfaces of revolution of genus 1 about same axis. In the preferred configuration a cavity of revolution is used, generated by the revolution of a rectangle about the axis, two sides of the rectangle being parallel to the axis; one half of the cylindrical surface generated by the side nearest the axis is allocated to each rotor, while the surface generated by the other three sides of the rectangle is allocated to the housing. n substantially similar diaphragms having azimouthal thickness substantially equal to 90
.degree. extend from each rotor at azimouthal angles 360
across the cavity of revolution and are interleaved with the diaphragms of the other rotor so that the diaphragms divide the cavity of revolution in 2n chambers the volume of half of the chambers increasing while the volume of the others is equally decreasing as the rotors are pressured to rotate with respect to each other. The chambers are assigned to execute sequential strokes of predetermined cycles; cycles involving 2, 4, 8 and 10 strokes are described with the complex cycles also used for converting heat in unburned hydrocarbons, and heat trapped on the walls of the chambers and in the hot exhaust gases to useful torque. The average rotational motion of the rotors is combined through a differential gear assembly into rotation of a center shaft. Means are provided for limiting the reverse rotation of the rotors, the rotors execute average rotational displacements equal to 180
.degree. per power stroke. A plate rotating with speed equal to the center shaft serves to program the particular cycle, to sequence strokes and to advance the stroke pattern. Means are also described for sealing the volumes between chambers, for lubricating surfaces in relative motion, for cooling and for starting the engine. Relatively lightweight, small volume, and efficient power plants are described when the engine is combined with auxiliary components normally used with such power plants as hydrostatic, geothermal gaseous pressure, steam, gasoline, and Diesel power plants.
REFERENCES:
patent: 987929 (1911-03-01), Thomas
patent: 1024166 (1912-04-01), Weed
patent: 1695704 (1928-12-01), Archer
patent: 2154095 (1939-04-01), Jones
patent: 2420136 (1947-05-01), Hill
patent: 2687609 (1954-08-01), Mallinckrodt
patent: 3292602 (1966-12-01), Stewart
Casey William J.
Croyle Carlton R.
Doundoulakis Helias
Koczo, Jr. Michael
Michalos Constantine
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