Intake passage structure for an internal combustion engine

Details Intake passage structure for an internal combustion engine Intake passage structure for an internal combustion engine

1997-05-09

1998-09-22

Okonsky, David A.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123593, F02M 3510

Patent

active

058099611

ABSTRACT:
An intake passage structure for an internal combustion engine has a first passage portion where a throttle valve is disposed and a second passage portion, downstream of the fist passage portion, where a mesh member is disposed. A relationship S.sub.1 .ltoreq..alpha.S.sub.2 holds between a cross-sectional area S.sub.1 of the first passage portion and a cross-sectional area S.sub.2 of the second passage portion where .alpha. is an open area rate of the mesh member. A clearance may be provided between a periphery of the mesh member and an inside surface of the intake pipe where the mesh member is disposed.

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patent: 5323753 (1994-06-01), Cikanek, Jr. et al.
patent: 5388559 (1995-02-01), O'Keefe
patent: 5623900 (1997-04-01), Topfer et al.

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