Patent ID: 6273037
Filing Date: 2001-08-14
Classification: F02B,F02M,Y02T

Abstract:
In an internal combustion engine having a crankcase, a cylinder connected to the crankcase, a compressed air assisted fuel injection system connected between the crankcase and the cylinder, and a reciprocating piston head located in the cylinder, wherein the improvement comprises:the compressed air assisted fuel injection system having a conduit system with a first aperture into the cylinder forming a fuel and compressed air injection port and a second aperture which, based upon position of the piston in the cylinder, is connectable to pressure inside the crankcase, the second aperture forming a compressed air entrance and blow off port, wherein the piston head opens and closes the two ports as the piston head reciprocates in the cylinder, wherein the first and second apertures are spaced relative to each other and the piston head is sized and shaped such that the piston head substantially simultaneously opens the compressed air entrance and blow off port and closes the fuel and compressed air injection port, and wherein the blow off port remains open as the piston head moves to and through a top dead center position.