Air induction unit for internal combustion engine

Details Air induction unit for internal combustion engine Air induction unit for internal combustion engine

1998-05-20

2000-02-15

McMahon, Marguerite

Acoustics

Sound-modifying means

Housing or enclosure

12318421, 12318461, F02M 3510

Patent

active

060241888

ABSTRACT:
An air induction unit is composed of an air filter, a resinous intake manifold for inducting air filtered by the air filter into intake ports of the engine, a resinous case and a resinous cap. The air filter, intake manifold and fuel injectors are disposed inside the resinous case and the resinous cap. The resinous case and the resinous cap have respectively double-wall structure composed of inside walls and outside walls and noise-and-heat-insulation members between the inside walls and the outside walls.

REFERENCES:
patent: 5259356 (1993-11-01), Karlsson et al.
patent: 5269143 (1993-12-01), Cikanek et al.
patent: 5477819 (1995-12-01), Kopec
patent: 5538571 (1996-07-01), Miyajima
patent: 5575247 (1996-11-01), Nakayama et al.

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