Patent ID: 8424505

Claim:
Variable-volume rotary device, an efficient two-stroke spherical engine with an inner spherical cavity and comprising of inlet and exhaust ports and a bypass flow path, within the housing, a rotary displacement member with spherical outer configurations and capable of revolving around the center point of the spherical inner surface of the housing is mounted, the casing of the displacement member, mating with the spherical inner surface of the housing, controls the opening and closing of the intake and exhaust ports as well as the bypass flow path, said rotary displacement member is equipped with a centrally disposed, disc-shaped partition that forms a mutually isolated division in the housing cavity and has two pivot vanes, splitting the housing cavity further into four isolated quadrants, the volume of which vary during gyration, within the housing, bearing power take-off shafts, the shaft axes of which cross the center point of the spherical inner surface of the housing, are affixed to said two pivot vanes at obtuse angles comprising a central rotary disc defined on one side by a sphere mating with the inner spherical surface of the housing, and on other sides by two planes, to each of these sides a larger spherical projection and a smaller spherical projection concentric to the inner spherical surface of the housing and of different radii are attached, the two pivot vanes are similar in shape to orange segments with outer surfaces corresponding to the spherical inner surface of the housing and their inner vane spherical surfaces mate with the outer surfaces of the larger spherical projection and the smaller spherical projection, in turn, their two side surfaces are defined by planes that intersect each other at an acute angle and cross the center point of the housing, the two pivot vanes being connected to the central rotary disc on its opposing sides and along its mutually perpendicular diameters, allowing for rotary movement, inlet and exhaust ports being arranged such that, while the rotary displacement member is in motion, the inlet port only connects to a quadrant of the inner spherical cavity of the housing defined by the smaller spherical projection of the central rotary disc, whereas the exhaust port is connected only to a quadrant of the inner spherical cavity of the housing that is defined by the larger spherical projection of the central rotary disc, the bypass flow path being connected to the compartment of the inner spherical cavity of the housing defined by the smaller spherical projection of the smaller radius of the central rotary disc with the compartment of the inner spherical cavity of the housing defined by the larger spherical projection of the larger radius of the central rotary disc.