Split plenum intake manifold with variable runners

Details Split plenum intake manifold with variable runners Split plenum intake manifold with variable runners

1997-01-16

1998-06-09

Okonsky, David A.

Internal-combustion engines

Intake manifold

For engine having radiating cylinders

12318455, 12318456, F02M 3510, F02B 2702

Patent

active

057620369

ABSTRACT:
An intake manifold assembly (10) for use with an internal combustion engine. The manifold assembly (10) includes three main components, a cover (12), base (14) and runner beam (16). The cover (12) and base (14) mate to form cavity (18), encompassing a variable plenum (54) upstream of variable runners (52) formed by runner beam (16) and the variable runners (52). The variable plenum (54) of the exemplary embodiment is selectively split into two sections by a divider wall (34) and middle runner blade (48a). Rotation of the runner beam (16) causes a change in the length and/or cross-sectional area of the variable intake runners (52) as well as changing the variable plenum (54), thus varying the tuning of the intake flow into the engine, to optimize engine operation.

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