Toyota Jidosha Kogyo Kabushiki Kaisha

Hideaki Akamatsu

Fumiyoshi Noda

Shinichiro Mizusawa

Yuji Watanabe

This invention relates to a catalyst assembly for cleaning an exhaust gas wherein the catalyst and the carrier therefor are secured inside a catalyst muffler by means of expandable ceramic material. This invention also provides a method for making such a catalyst assembly.

Catalyst assembly for cleaning an exhaust gas

An internal combustion engine comprising a first exhaust valve arranged in an exhaust port in the exhaust system of said internal combustion engine, and a second exhaust valve arranged in the exhaust port downstream from said first exhaust valve, the timing of the opening of the first exhaust valve being earlier than that of the second exhaust valve, whereby the two valves temporarily form a secondary combustion chamber therebetween.

Growing community of inventors

Susono, Japan

Hideaki Akamatsu