INTERNAL COMBUSTION ENGINE WITH PRESSURE CONTROL PROCESS LIMITER

摘要

A two-stroke internal combustion engine of the type having separate fuel and oil pumps delivering their outputs for mixture prior to entering the carburetor, the oil pump having a variable output relative to the fuel pump output, and means responsive to the amplitude of the pressure wave in the engine crankcase to vary the output of the oil pump to optimize the fuel/oil ratio for the operating conditions.