Intake manifold for internal combustion engine

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

2006-08-15

2006-08-15

Solis, Erick R (Department: 3747)

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

C123S184240, C123S184260

Reexamination Certificate

active

07089921

ABSTRACT:
An intake manifold (1) of a multi-cylinder internal combustion engine comprises a single pipe portion (4), a collector (5) connected to the pipe portion (4), and a plurality of branch pipes (6) branching from the collector (5) to each cylinder. The pipe portion (4) and the collector (5) divided into a plurality of spaces (1a, 1b) by a partitioning member (12). Blow-by gas is equally distributed to each cylinder using a simple structure comprising a discharge vent (3) for blow-by gas in the pipe portion (4) extending over the partitioning member (12) and being equal to the two spaces (1a, 1b). It is preferred that a notch (8) is formed facing the discharge vent (3) on the partitioning member (12).

REFERENCES:
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patent: 6807957 (2004-10-01), Ko
patent: 7017562 (2006-03-01), Jeon
patent: 11-82197 (1999-03-01), None

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