Cataler Corporation

Nobuaki Bando

Tsuyoshi Ito

Chihiro Kasuya

Kohei Takasaki

Tomohito Mizukami

Akio Kubota

Naoki Yokoyama

Hiroshi Ono

Yuji Matsuhisa

A perforated metallic base material for purging exhaust is obtained by laminating a wavy foil having pores and a flat foil having pores and forming the same into a cylindrical shape, wherein the wavy foil and/or the flat foil has axially perforated portions having pores throughout the axial direction of the cylindrical shape and axially non-perforated portions not having pores overall in the axial direction of the cylindrical form.

Metallic base material for exhaust purging, and exhaust purging device using same

An exhaust gas purification device has a metal substrate and a catalyst layer on the metal substrate, wherein the metal substrate is a wound body of one or a plurality of metal foils, at least one of the one or a plurality of metal foils is a perforated metal foil having holes, the catalyst layer contains noble metal catalyst particles and a carrier for carrying the noble metal catalyst particles, and more noble metal catalyst particles are present in the catalyst layer on side surfaces of holes, which face an upstream side of an exhaust gas flow, than in the catalyst layer on side surfaces of holes, which face a downstream side of the exhaust gas flow.

Exhaust gas purification device using metal substrate and production method therefor

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Kakegawa, Japan

Nobuaki Bando