Mitsubishi Jidosha Kogyo Kabushiki Kaisha

Mitsubishi Jukogyo Kabushiki Kaisha

Yasuaki Kumagai

Yoichiro Kono

Hiroshi Ogita

Nobuaki Takeda

Shinji Nakayama

Hiroshi Oikawa

Hiroshi Nakagawa

Masayoshi Nakashima

Kiyoshi Miyajima

Two filters provided in an exhaust path of an internal combustion engine are used to simultaneously collect particulate in an exhaust gas and are alternately refreshed. When a refresh timing of the filters comes, a determination is made as to which of the filters has a larger accumulation amount. The plurality of filters are refreshed in an order from the filter determined as having the larger accumulation amount, and variation of accumulation amounts of particulate of the filters is corrected, so that both of the filters are refreshed within a tolerable temperature range.

Apparatus and method for removing particulates in exhaust gas of an

An exhaust gas purifier for a diesel engine is positioned in the middle of an inlet system for supplying air to a combustion chamber. The exhaust gas purifier includes an HC (hydrocarbon) supply source, and a zeolite catalyst converter, which is activated by the hydrocarbon as a reduction agent to crack NOx (oxides of nitrogen) in the exhaust gas, for thereby purifying the exhaust gas.

Zeolite converter for diesel engine

Particulate purging apparatus for diesel engine exhaust

An exhaust emission purifier for a diesel engine has a particulate trap disposed in the exhaust emission passage of the diesel engine for entrapping particulates contained in exhaust gases emitted from the diesel engine, the particulate trap being housed in a canning container. An electric heater is disposed in the canning container upstream of the particulate trap for heating the exhaust gases to a temperature which is high enough to burn particulates entrapped by the particulate trap. A heat conductor/converter device disposed in the canning container upstream of the electric heater for absorbing heat radiated from the electric heater and discharging the absorbed heat into air flowing from a position upstream of the canning container into the particulate trap. The heat generated by the electric heater is efficiently utilized to heat the air introduced into the particulate trap for reliably and quickly igniting and burning the entrapped particulates.

Exhaust emission purifier for diesel engines

Growing community of inventors

Yokohama, Japan

Yasuaki Kumagai