Patent ID: 6557533
Filing Date: 2003-05-06
Classification: F02B,F02M,Y02T

Abstract:
An internal combustion engine comprising a cylinder body, at least one cylinder bore being defined within said cylinder body, a piston being mounted for reciprocation within said cylinder bore, said piston being connected to a crankshaft, said crankshaft being disposed within a crankchamber defined in part by a crankcase member, a cylinder head being mounted to said cylinder body, a combustion chamber being defined by said cylinder head, said cylinder body and said piston, an air intake passage extending into said combustion chamber, at least one camshaft being disposed within a cam chamber defined at least in part by said cylinder head, a lubricant system adapted to provide lubricant to said engine, a vapor separator communicating with said cam chamber and removing vapors from said cam chamber, said vapor separator also communicating with said air intake passage, a fuel supply system communicating with a charge former adapted to supply fuel to air inducted into said combustion chamber through said air intake passage, said fuel supply system comprising a fuel vapor separator, said fuel vapor separator communicating with said cam chamber such that fuel vapor and lubricant vapor can mix prior to removal from said cam chamber by said vapor separator.