Intake manifold having integrated features

摘要

A vehicle fuel intake system ( 10 ) includes an intake manifold ( 14 ), an injector pack assembly ( 18 ) and an air cleaner assembly ( 16 ). The injector pack assembly ( 18 ) includes an encapsulated lead frame ( 36 ) that provides electrical communication to fuel injectors ( 26 ). The intake manifold defines a fuel rail ( 22 ) and a cavity ( 24 ). Fuel vapors permeating from the fuel rail ( 22 ) are trapped in the cavity ( 24 ) and channeled back into the air intake passages ( 20 ). The air cleaner assembly ( 16 ) includes a filter ( 28 ) for absorbing fuel vapor emissions from unburned fuel escaping a non-operating engine ( 12 ). An actuator ( 30 ) moves the filter ( 28 ) between an open and closed position. Once the engine begins operation, the actuator ( 30 ) opens the filter ( 28 ) to allow unrestricted airflow through the intake manifold ( 14 ).