Patent ID: 6067957
Filing Date: 2000-05-30
Classification: F02B,F02D,Y02T

Abstract:
A two cycle, crankcase compression, direct cylinder injected internal combustion engine comprised of an engine body defining a plurality of cylinder bores, a piston reciprocating in each of the cylinder bores, a cylinder head affixed to one end of the engine body for closing the cylinder bores and defining with said pistons and said cylinder bores a plurality of combustion chambers, a crankcase chamber formed at the other end of said cylinder bores, a plurality of scavenge ports each interconnecting said crankcase chamber with a respective one of said combustion chambers and opened and closed by said reciprocation of the respective one of said pistons in the respective of said cylinder bores for admitting an air charge to said combustion chamber, a plurality of exhaust ports each formed in a respective one of the cylinder bores for discharging burned combustion products from said combustion chambers, said exhaust ports being opened and closed by the reciprocation of said pistons in said cylinder bores, a plurality of fuel injectors each spraying fuel directly into a respective one of said combustion chambers for combustion therein, means for sensing a demand for a substantial change in engine speed, and means for effecting a change in engine speed by effecting a change in fuel injection to a cylinder subsequent to the cylinder being supplied with fuel at the time the change in speed is called for.