Oil separator

Abstract

An oil separator that removes oil from ventilation gases flowing between a crankcase and an intake manifold of an internal combustion engine. The oil separator includes a housing having an inlet and an outlet. The housing includes a guide wall having a plurality of holes to allow gases to flow therethrough between the inlet and the outlet. A plate is movably coupled to the housing for movement between a closed position blocking the flow of gases through the holes in the guide wall and an open position spaced apart from the guide wall to allow gases to flow through at least one of the holes in the guide wall. A diaphragm has a movable portion coupled to the plate. The diaphragm defines a substantially closed volume continuous with the intake manifold so that pressure changes in the intake manifold causes corresponding displacement of the movable portion and the plate relative to the housing.

Dependencies are inferred from the claim text.