Differenzdrucksventuri und Verbindungskupplung für Abgasrückführung

摘要

An adjustable recirculation exhaust gas pressure differential venturi (53) and coupler adapted to be coupled between an exhaust (28) and an intake (26) of an automotive-type engine and which receives exhaust gases from the exhaust for recirculation back through the intake. A valve (34) having a chamfered orifice is located within the tubular coupler for controlling the flow of exhaust gases through the coupler thus controlling the pressure differential therein. The coupler (36) is a two piece (49,44) assembly with a telescopic connection which allows for axial and rotational adjustments.