초록 ▼

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 c

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.

대표청구항 ▼

[ We claim:] [1.] An air induction unit for an internal combustion engine including an air filter, a resinous filter case for accommodating said air filter, an intake manifold connected to said air filter for inducting air from said air filter to an air induction port of said engine, whereinsaid int

[ We claim:] [1.] An air induction unit for an internal combustion engine including an air filter, a resinous filter case for accommodating said air filter, an intake manifold connected to said air filter for inducting air from said air filter to an air induction port of said engine, whereinsaid intake manifold comprises a passage wall disposed in said filter case to form an inside wall spaced apart from a wall of said filter case, thereby forming a double wall structure, anda noise-and-heat-insulation member is disposed between said inside wall and said wall of said filter case.