Engine air intake device

Details Engine air intake device Engine air intake device

2006-11-07

2006-11-07

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Intake manifold

For engine having radiating cylinders

C123S184590

Reexamination Certificate

active

07131416

ABSTRACT:
An engine air intake device comprises a collector divided by a partition wall into first and second volume chambers, first and second upstream intake pipe portions, a plurality of first and second downstream branch pipes, and a first communication valve. The first and second upstream intake pipe portions are connected to an upstream side of the first and second volume chambers, respectively. The first and second downstream branch pipes extend from the first and second volume chambers, respectively, to respective intake ports of first and second banks of first and second cylinders, respectively. The first communication valve is mounted to the partition wall in a position that does not interfere with a path of a main flow of intake air inside the collector and configured and arranged to allow communication between the first volume chamber and the second volume chamber when the first communication valve is open.

REFERENCES:
patent: 5027769 (1991-07-01), Yoshida et al.
patent: 5408962 (1995-04-01), Tallio et al.
patent: 6722335 (2004-04-01), Nomura et al.
patent: 6978755 (2005-12-01), Yamamoto et al.
patent: 02108818 (1990-04-01), None
patent: 06-002625 (1994-01-01), None
patent: 10-037750 (1998-02-01), None

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