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AssigneeToyota Jidosha Kabushiki Kaisha
InventorsKoichiro Nakatani, Shinya Hirota, Yoshimitsu Henda, Kazuhiro Itoh, Takamitsu Asanuma, Koichi Kimura, Shunsuke Toshioka, Yasuaki Nakano, Akira Mikami
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A device for purifying the exhaust gas of an internal combustion engine is disclosed. The device comprises a particulate filter carrying an active-oxygen releasing agent that can cause the sulfur poisoning, a SOx trap unit arranged upstream of the particulate filter, and a bypass means for making the exhaust gas mainly bypass said particulate filter when SOx is released from the SOx trap unit. Further, an exhaust choke valve for an exhaust brake is arranged between the SOx trap unit and the exhaust gas branch portion of the bypass means.
A device for purifying the exhaust gas of an internal combustion engine comprising a particulate filter carrying an active-oxygen releasing agent that can cause the sulfur poisoning, a SOx trap unit arranged upstream of said particulate filter, and a bypass means for making the exhaust gas mainly bypass said particulate filter when SOx is released from said SOx trap unit, wherein an exhaust choke valve for exhaust brake is arranged between said SOx trap unit and the exhaust gas branch portion of said bypass means.
Dependencies are inferred from the claim text.