Patent ID: 6668809
Filing Date: 2003-12-30
Classification: F01B,F02B,F02G,Y02T

Abstract:
A regenerated internal combustion engine comprising:at least one cylinder, closed at one end by a movable hot piston and closed at the other end by a movable cold piston, said pistons moving in a reciprocating manner and connected to a power output shaft; a thermal regenerator located within said cylinder between said pistons, said regenerator dividing said cylinder into a hot volume and a cold volume, said hot volume lying between said regenerator and said hot piston, and said cold volume lying between said regenerator and said cold piston; at least one exhaust port on said cylinder to permit the flow of exhaust fluid out from said cylinder, said exhaust port located between said cold piston and said thermal regenerator; and at least one intake port on said cylinder to permit the flow of fresh working fluid into said cylinder, said intake port located between said cold piston and said exhaust port.