Patent ID: 6009846
Filing Date: 2000-01-04
Classification: F02M,Y10S

Abstract:
A combination apparatus for use with an internal combustion engine for silencing and filtering air flow, separating air-contaminant mixtures, and regulating vacuum within the engine and apparatus, the apparatus comprising:an annular housing having an outer wall;an air filter joined to the annular housing;a channel in the housing defining a central axis, having on one end of the channel a primary gas inlet coupled to the air filter, and having on the opposite end of the channel a primary gas outlet, and having a channel wall, the channel wall having inside and outside surfaces;a secondary inlet port through the outer wall;a secondary outlet port defining an opening in the channel wall such that there is no straight line flow path between the secondary inlet and the secondary outlet;an oil drain that extends through the outer wall between the secondary inlet and secondary outlet for passing collected oil to an engine crankcase; anda vacuum regulator disposed within the housing between the secondary inlet and outlet ports to both control the amount of vacuum within the housing to permit oil transfer from the oil return passage, and to control the amount of vacuum imposed on the secondary inlet.