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US 5,310,325 AGranted
Rotary engine with eccentric gearing
OwnerSteve I. Gulyashinventor
Life of this patent
Estimating the term…
Abstract
A rotary engine having a three apex rotor rotatably and eccentrically mounted on a driven shaft. The rotor having a central internal ring gear meshing with an eccentrically mounted pinion gear. The pinion gear drives the driven shaft with a 1:1 ratio and the eccentricities of the rotor and the pinion gear are of equal magnitude and direction so that the gears stay in contact. The eccentricity of the gears is not fixed with respect to the size of the gears. The pinion gear is fixed on a shaft spaced from the driven shaft and supports the ring gear and the rotor as it is driven by the rotor.
Claims20
A rotary engine comprising:
- a housing having two opposing internal faces and a side wall joining said faces;
- a driven shaft having an axis of rotation orthogonally extending substantially through the center of at least one of said opposing internal faces, the driven shaft having a lobe portion eccentric to said axis and located in the housing;
- a rotor rotatably mounted on said lobe portion and having an internal ring gear substantially co-axial with said lobe portion;
- a pinion gear meshing with the ring gear and eccentrically fixed on a pinion shaft, the pinion gear having the same eccentricity as said lobe portion, the pinion shaft extending orthogonally through one of said opposing internal faces of the housing and being rotatable therein;
- and
- drive means for transmitting torque between said pinion shaft and the driven shaft so that as the rotor is turned, the rotor substantially follows said side wall of the housing.
3 more elements
A rotary engine comprising:
- a housing defining a cavity of substantially dual-lobed epitrochoidal shape;
- a driven shaft having an axis of rotation orthogonally extending substantially through the center of the housing, the driven shaft having a lobe portion eccentric to said axis and located in the housing;
- a rotor having three apexes substantially at 120 degrees to one another, the rotor rotatably mounted on said lobe portion and having a ring gear substantially coaxial with said lobe portion;
- a pinion gear meshing with the ring gear and fixed eccentrically on a rotatable pinion shaft, the pinion shaft offset from the driven shaft, said eccentricity of the pinion gear substantially equal to said eccentricity of said lobe portion;
- and
- drive means coupled to said pinion shaft and the driven shaft for transmitting torque between the two so that as the rotor rotates, said apexes of the rotor trace said dual-lobed epitrochoidal shape.
3 more elements
Dependencies are inferred from the claim text.