Intake manifold assembly for four-cycle internal combustion engi

Details Intake manifold assembly for four-cycle internal combustion engi Intake manifold assembly for four-cycle internal combustion engi

1995-10-02

1997-01-28

Okonsky, David A.

Internal-combustion engines

Intake manifold

For in-line engine

12318442, 12318447, F02M 3510

Patent

active

055969615

ABSTRACT:
An intake manifold assembly is disclosed for an internal combustion engine. The intake manifold assembly includes an intake manifold of a predetermined length and includes a plenum having an interior wall surface and a predetermined cross-sectional area in a plane transverse to the length of the plenum. An air inlet is located mid-way of the length of the plenum, and the air inlet is generally circular in cross-section. A plurality of outlet portions, each having an outlet port in air flow communication with the plenum, each of the outlet ports being substantially equally spaced along the length of said plenum. A cross-sectional area of the outlet port of each outlet portion is substantially equal to the cross-sectional flow area of the plenum and of the air inlet portion. A diverter partition extends integrally from the inner wall of the plenum in a direction toward the mid-point of the air inlet to divert incoming air flow and evenly distribute the air flow to each of the respective outlet ports.

REFERENCES:
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patent: 3667432 (1972-06-01), Greathouse
patent: 3811416 (1974-05-01), Gospodar et al.
patent: 3945357 (1976-03-01), Ableitner
patent: 4430977 (1984-02-01), Shimada
patent: 4653440 (1987-03-01), Fukuhara et al.
patent: 4848280 (1989-07-01), Ohtsuka et al.
patent: 5074258 (1991-12-01), Hitomi et al.

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