Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Kabushiki Kaisha Toyota Jidoshokki

Masataka Miyazaki

Hiroki Matsuoka

Shigeru Kobayashi

Hiroaki Ito

Tatsuhisa Yokoi

Shigehiro Matsuno

Yasuhiko Otsubo

Takayoshi Inaba

Kazutaka Fujii

Keimei Fujita

Atsushi Hoshimiya

Hiroyuki Miyazaki

A pressure detection mechanism for a catalyst of an engine, in which the catalyst includes an upstream NSR catalyst and a downstream DPNR catalyst stored in a catalyst casing, which includes a DPNR front pressure detection pipe connected to a space formed by the NSR catalyst, the DPNR catalyst and the catalyst casing, a DPNR rear pressure detection pipe downstream of the DPNR catalyst connected to a space formed by the DPNR catalyst and the catalyst casing, and a pressure difference transducer connected to the DPNR front pressure detection pipe and the DPNR rear pressure detection pipe.

Pressure detection mechanism for exhaust emission control device of internal combustion engine

In an exhaust purifying apparatus, a fuel adding valve () supplies unburned fuel to an exhaust passage () of a diesel engine () so that particulate matter collected in a catalytic converter () is burned and removed. The supply of unburned fuel from the fuel adding valve () is executed even after an electronic control unit () determines that particulate matter in the catalytic converter () has been burned and removed. This reduces the amount of particulate matter remaining unburned in the catalytic converter ().

Exhaust purifying apparatus and exhaust purifying method for internal combustion engine

Growing community of inventors

Aichi-ken, Japan

Masataka Miyazaki