Patent ID: 6340013
Filing Date: 2002-01-22
Classification: F02B,F02F,F02G,Y02T

Abstract:
In a four-stroke internal combustion engine having a cylinder with a piston reciprocating therein between limits defining a top dead center and a bottom dead center, the improvement comprising:means defining a recuperative cylinder head having an internal recuperator coupled to an internal combustion chamber; means for selectively controlling the flow of air from the atmosphere into said cylinder; means for selective control of compressed air passing through said recuperator in a first direction to said combustion chamber; means for adding fuel to said compressed air and for igniting same and for selectively controlling the release of the gaseous ignition products to said cylinder to urge said piston toward said bottom dead center; and means for selectively controlling the flow of said gaseous ignition products from said cylinder via said combustion chamber and said recuperator in reverse to said first direction to release said gaseous products to the atmosphere.