AIR INTAKE MANIFOLD FOR AN INTERNAL COMBUSTION ENGINE

摘要

An air intake manifold for an internal combustion engine including a mounting flange through which a plurality of intake ducts open. Blow-by gases from the crankcase of the engine are introduced into the intake ducts through channels or passageways communicating with the ducts adjacent a face of the mounting flange which is fastened to the cylinder head of the engine. Connecting means also are provided through which the blow-by gases are introduced into the channels or passageways. The invention provides a simple design for feeding blow-by gases into the air intake manifold and fox assuring uniform filling of the individual intake ducts with blow-by gases which lubricate the intake valves due to their slight oil content.