Patent ID: 6210135
Filing Date: 2001-04-03
Classification: F01C,F02B

Abstract:
An internal combustion rotary engine comprising:a housing, a rotor includingan outer rotor assembly mounted for rotation within the housing about an axis of the housing, said outer rotor assembly having an internal volume, said outer rotor assembly including a piston assembly comprising at least one pair of diametrically opposed pistons within the internal volume mounted to rotate with the outer rotor assembly, andan inner rotor assembly disposed within internal volume of said outer rotor assembly and mounted so as to rotate with respect to said outer rotor assembly, said inner rotor assembly including a piston assembly comprising at least one pair of diametrically opposed pistons mounted for rotation with the inner rotor assembly, said pistons of said inner and outer rotor assemblies dividing the internal volume into a plurality of pairs of diametrically opposed sub-chambers, said rotor including said rotor assemblies being rotatable without contacting an inner surface of said housing, being provided with water cooling means, and being provided with lubricating means anda mechanism including crankshaft and gear structure and linkages for interconnecting said inner and outer rotor assemblies for rotation of said inner and outer piston assemblies in the same direction at recurrently variable speeds, whereby at least one pair of diametrically opposite sub-chambers decrease in volume, and for each complete revolution of said pairs of diametrically opposed pistons, a plurality of operating cycles being completed including successive power, exhaust, intake and compression phases, said mechanism being constructed and arranged such that reaction forces generated during an operating cycle are substantially taken-up by said linkages.