Patent ID: 6386838
Filing Date: 2002-05-14
Classification: F01C,F02B,Y02T

Abstract:
A reciprotating rotating internal combustion engine for producing direct hydraulic work, comprising:A) a combustion assembly housing; B) a combustion chamber disposed within the combustion housing; C) at least two pairs of free pistons disposed within the combustion chamber and dividing the combustion chamber into at least four combustion chamber portions, the free pistons moveable between first piston positions and a second piston positions; D) a pumping assembly housing; E) a pumping chamber disposed within the pumping housing; and F) at least two pairs of pump vanes disposed within the pumping chamber and dividing the pumping chamber into at least four pumping chamber portions, the pump vanes coupled to the free pistons so as to be moveable therewith between first pump vane positions and second pump vane positions corresponding to the first and second piston positions respectively; G) wherein the free pistons reciprocate between the first and second piston positions under a combustion event force in either one of the first or second combustion chambers to compress combustion gases in the other one of the first or second combustion chambers and to move the pump vanes between the first and second pump vane positions to drive a working fluid through the pumping chamber.