Patent ID: 6418917
Filing Date: 2002-07-16
Classification: F01M

Abstract:
A closed crankcase breather system for an internal combustion engine comprising:a crankvent breather with an inlet, gas outlet and water drain outlet; said crankvent breather operably interposed between a rocker cover breather outlet and a hose leading to an intake system; said crankvent breather located in proximity to a rear end of the engine for receiving heat from said engine; an inlet hose connected to the crankvent inlet and in communication with the rocker cover breather outlet; said crankvent breather further located below said rocker cover breather unit; an oil accumulator in line between the rocker cover breather outlet and the inlet hose, said oil accumulator constructed for separating oil from said crankcase gasses exiting said rocker cover breather outlet and returning said oil through said rocker cover breather outlet into said rocker cover; said oil accumulator having a lower inlet connected to said rocker breather outlet, an upright cylindrical body with a substantially flat top wall and an upper outlet spaced downwardly from said top wall; said oil accumulator and said inlet hose leading to said crankvent breather being covered by a heat insulating material; said lower inlet and said upper inlet being circumferentially spaced at right angles from each other about the cylindrical body and both inlet and outlet have respective longitudinal axis intersecting the longitudinal axis intersecting the longitudinal axis of the cylindrical body; and a mounting flange extending from said cylindrical body substantially planar wit said top wall.