Toyota Jidosha Kabushiki Kaisha

Futaba Industrial Co., Ltd.

Taiki Teramoto

Akira Yamamoto

Takato Ishihata

Takehiro Miura

An exhaust silencer device which is interposed in an exhaust passage in a vehicle to reduce exhaust noise comprises a sub-muffler which is interposed in the exhaust passage and has an expansion chamber formed therein; an inlet pipe which is airtightly inserted through an inlet opening of the sub-muffler; and an outlet pipe which is airtightly inserted through an outlet opening of the sub-muffler, wherein the inlet pipe and the outlet pipe are formed with openings (small apertures, non-joined portions) only in their upper half area and their lower half area is sealed without having the openings.

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Toyota, Japan

Taiki Teramoto