Patent ID: 8555830

Claim:
A combustible fluid-operated orbital engine, comprising: one or more cylinders in which each cylinder has a longitudinal axis and is carried on a rotating cylinder wheel for orbital motion and is adapted to receive the combustible fluid, the cylinder wheel being rotatable about an axle along an first axis of rotation, wherein at least a portion of the one or more cylinders intersects the first axis during its orbital motion; and one or more corresponding pistons carried on a counter-rotating piston wheel for opposite orbital motion, the piston wheel being rotatable about an axle along an second axis of rotation parallel to the first axis, wherein at least a portion of the one or more pistons intersects the second axis during its orbital motion, each of the pistons having a cooperating cylinder and having throughout its movement the same longitudinal axis as its cooperating cylinder to oppose and sequentially enter and completely withdraw from its cooperating cylinder on the same longitudinal axis.