Patent ID: 7886713

Claim:
A lower intake manifold assembly, comprising: a housing including a plurality of first flow apertures; at least one runner insert attached to the housing, said runner insert having a plurality of second flow apertures, each of said second flow apertures arranged downstream of and aligned with respect one of said first flow apertures, the at least one runner insert including a plurality of alignment fins that each extend from an upstream face of the runner insert into a respective one of said first flow apertures of said housing such that said alignment fins are insertably received into said housing; a plurality of support rails and a plurality of second flow apertures, each of the second flow apertures aligned with a respective one of the first flow apertures; and a flap assembly including a shaft rotatably supported on the support rails between the housing and the runner insert, the shaft having attached thereto a plurality of flaps, each of the flaps aligned with a respective first aperture and a respective second flow aperture to form a charge motion control valve.