Denso Corporation

Cataler Corporation

Yoshiyasu Andoh

Kenichi Taki

Akimasa Hirai

Tomoaki Nakano

Shingo Nakata

Yuji Yabuzaki

Masakazu Murata

A hexagonal-cell honeycomb catalyzer is for purifying an exhaust gas. The catalyzer comprising a support that has a plurality of cells and a purification layer that has an HC absorption layer and a three-way catalyst layer. The HC absorption layer is formed on the honeycomb-formed surface of each wall of the support. The three-way catalyst layer is formed on the surface of the HC absorption layer. Provided that the HC absorption layer has a thickness aand the three-way catalyst layer has a thickness bat a thin portion of the purification layer of which thickness is minimum and the HC absorption layer has a thickness aand the three-way catalyst layer has a thickness bat a thick portion of the purification layer of which thickness is maximum, a ratio of a/band a ratio of a/bare both within a range of 1/20 to 5/1.

Hexagonal-cell honeycomb catalyzer for purifying exhaust gas

Growing community of inventors

Kakamigahara, Japan

Yoshiyasu Andoh