Other

Yoshitada Kodama

Kazuhiko Shiratani

Naohisa Oyama

Carbon-containing suspended particulates in exhaust gas from an internal combustion engine are collected by a heat-resistant filter, and are burned on the filter. It is determined whether there is a need to increase the temperature of the heat-resistant filter. If it is necessary to increase the filter temperature, the dynamic pressure on the filter is increased. The conceivable cases where a filter temperature increase is needed includes a case where the exhaust gas temperature is low, a case where the filter is clogged to some extent, etc. If the dynamic pressure on the heat-resistant filter is increased, the filter temperature rises. Therefore, particulates can be effectively removed from exhaust gas while the clogging of the heat-resistant filter is avoided.

Growing community of inventors

Gamagouri, Japan

Yoshitada Kodama