Patent ID: 6412478
Filing Date: 2002-07-02
Classification: F01M

Abstract:
A breather mountable on a cylinder head of a crankcase of an engine for separating oil from the crankcase blow-by, comprising:a rocker cover mountable to the cylinder head of the crankcase, the rocker cover defining a cavity therein; a plate positioned within the cavity of the rocker cover for separating the cavity into first and second portions, the plate having a first opening for allowing the crankcase blow-by to flow between the first and second portions of the cavity and a drain hole for allowing oil to drain from the second cavity to the first cavity; an oil separator positioned within the second portion of the cavity and having first and second sides, the oil separator dividing the second portion of the cavity into a first upper chamber and a second lower chamber; a first set of baffles projecting from the first side of the oil separator into the upper chamber; and a second set of baffles projecting from the second side of the oil separator into the lower chamber; wherein the second set of baffles engages the plate; and wherein oil in the crankcase blow-by clings to the oil separator and the first and second sets of baffles as the crankcase blow-by flows therepast.