Cataler Corporation

Toyota Jidosha Kabushiki Kaisha

Yuki Kido

Hiromasa Suzuki

Masahide Miura

Isao Chinzei

Sho Hoshino

Shogo Shirakawa

Minoru Ito

Takahiro Nishio

Suguru Matsui

Kazuma Nakada

Shin Nakayama

Etsuko Ohara

A production method of an exhaust gas purification device includes the steps of supplying a solution containing a catalyst metal from a shower nozzle to an upper part of a honeycomb substrate, coating the honeycomb substrate with the solution, and firing the honeycomb substrate coated with the solution, wherein the shower nozzle has a plurality of discharge openings for discharging the solution and a guard which surrounds the plurality of discharge openings.

Manufacturing method for exhaust gas purification device

Provided is an exhaust gas purification catalyst capable of reducing a noble metal amount while maintaining a catalyst performance, which comprises a substrate and at least three catalyst coating layers formed on the substrate, the first and third catalyst coating layers contain Pd as a catalyst metal and are formed in a range of a predetermined length from an upstream end surface in an exhaust gas flow direction, and the second catalyst coating layer contains Rh as a catalyst metal and is formed in a range of a predetermined length from a downstream end surface in the exhaust gas flow direction.

Exhaust gas purification catalyst

Growing community of inventors

Kakegawa, Japan

Yuki Kido