Nippondenso Co., Ltd.

Shigeru Maehara

Takeshi Matsui

Tetsuya Nakamura

Senta Tojo

Tetsuya Toyao

Hiromasa Aoki

Toshiki Matsumoto

Kanehito Nakamura

Kinji Hodaira

Yushi Fukuda

Atsushi Okajima

Tatsuya Fujita

Naoki Nagata

It is the primary object of the present invention to provide a catalyst converter which can hold a sufficient amount of catalyst to raise the temperature thereof to the catalyst activation temperature in a short time without enlarging the metal carrier itself. The metal carrier 1 is arranged in the course of an exhaust manifold 3 of an engine 2 and is composed of an alternating winding of a flat sheet 7 and a corrugated sheet 8, wherein slit parts 9 are formed in the flat sheet 7 and the corrugated sheet 8 of the metal carrier 1 in an end portion thereof, on the side the engine 2.

Metal carrier

A self-heat generating type honeycomb filter is mounted in an exhaust pipe line of an engine, and a plane plate and a corrugated plate are layered, then wound, and the first slit portion and second slit portion having openings, respectively, are formed between an up-stream and down stream side end portions of the plane and corrugated plates. An electric current is applied between the up-stream and down stream side end portions, to heat the first and second slit portions. Accordingly, a self-heat generation type catalytic converter capable of realizing both high resistance and low thermal capacity, and further ensuring a reduction in thermal conduction, and durability, and raising the temperature up to the sufficient level with less power consumption, can be provided.

Self-heat generation type honeycomb filter and its apparatus

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Kariya, Japan

Shigeru Maehara