Umlaufkolben-Brennkraftmaschine

摘要

In a rotary-piston internal-combustion engine in which two sets of pistons rotate about a common axis while in sealing engagement with a cylindrical casing wall, and the two sets are connected so that the pistons of one set rotate at uniform speed and those of the other set rotate at cyclically varying speed to expand and contract combustion chambers circumferentially bounded by the pistons, the uniformly rotating pistons are fixedly fastened to the radial end walls of the casing, and motion is transmitted between the two sets by crankshafts journaled in a gear carrier fixedly fastened to one of the end walls and oscillating a mounting sleeve for the pistons of the other set. The crankshafts are rotated by respective gears meshing with a ring gear fastened to the normally stationary cylindrical casing wall.