Patent ID: 8434449
Filing Date: 2013-05-07
Classification: F01C

Abstract:
1. A rotary piston device comprising: A. a housing; B. a piston chamber that is inside said housing, said piston chamber being rotationally symmetric with respect to a primary rotation axis that is stationary with respect to said housing; C. at least two rotary assemblies each individually rotationally suspended with respect to said primary rotation axis within said piston chamber, at least one of said rotary assemblies comprising: D. two opposing flywheels each outside adjacent said primary and secondary bearing disks, said two opposing flywheels being rotationally suspended with respect to a secondary rotation axis in said housing, wherein said secondary rotation axis is stationary with respect to said housing and in a primary offset to said primary rotation axis, each of said two opposing flywheels comprising a radial guide; and E. two opposing driving pistons per said at least one of said rotary assemblies, each of said two opposing driving pistons joined with a respective one of said crank joints and rotationally suspended with respect to said tertiary rotation axis while being radial guided by a respective one of said radial guides; and wherein: said secondary bearing disk of one of said rotary assemblies is rotationally suspended concentrically inside said primary bearing disk of one other of said rotary assemblies.