Intake manifold for an internal combustion engine

Details Intake manifold for an internal combustion engine Intake manifold for an internal combustion engine

1991-05-02

1992-07-14

Okonsky, David A.

Internal-combustion engines

Multiple cylinder

F02M 3510

Patent

active

051293684

ABSTRACT:
In an intake manifold, long individual intake pipes (2,2a,2b,2c) lead from a collective intake pipe (1) to the cylinders (3,3a,3b,3c) of an internal combustion engine. A transverse pipe (5) communicates with the individual intake pipes (2,2a,2b,2c) via resonance pipes (6,6a,6b,6c) which lead to the individual intake pipes (2,2a,2b,2c) from the transverse pipe (5). Communication with the transverse pipe (5) is only via the resonance pipes (6,6a,6b,6c). Cutoff devices (7) enable blockage of the connection between the transverse pipe (5) and the individual intake pipes (2,2a,2b,2c) at low engine speeds.

REFERENCES:
patent: 4794885 (1989-01-01), Honda et al.
patent: 4840146 (1989-06-01), Yanagisawa et al.
patent: 4932378 (1990-06-01), Hitomi et al.
patent: 4977865 (1990-12-01), Hiraoka et al.

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