EXHAUST GAS TREATMENT DEVICE AND EXHAUST GAS TREATMENT METHOD

Japanese Patent JP3894938

B2

PROBLEM TO BE SOLVED: To provide a compact exhaust gas treatment device mountable on a vehicle capable of thermally efficiently regenerating a filter with avoiding drop of elimination rate and runaway combustion of PM at a time of filter regeneration by using cohesion function and dust collecting function by corona discharge and dust collecting function of the filter, and an exhaust emission control method.
SOLUTION: This device includes a charging cohesion part 10 charging collection object composition in exhaust gas of an internal combustion engine by corona discharge and cohering the same, a filter part 20 collecting the cohered composition, a bypass passage 40 bypassing the filter part 20 and a flow passage change over means 41 changing over at least most part of flow of exhaust gas to the filter part 20 or the bypass passage 40. At least most part of flow of exhaust gas is changed over to the bypass passage 40 when rotation speed of the internal combustion engine is predetermined rotation speed or less and load is predetermined load or less.

Junichi Kasai
Yoshinori Tamura
Masashi Kabe
Mitsuhiko Itaya
Kenta Naito
Akatsuki Senbayashi
Akira Mizuno

JP2005086503A

March 22, 2007

March 24, 2005

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Isuzu Motors Limited
Nissin Electric Co., Ltd.
Akira Mizuno

F01N3/02; B01D53/94; B03C3/155; B03C3/36; B03C3/40; B03C3/41; B03C3/49; F01N3/20; F01N3/24

JP8500521A
JP4358714A
JP2001280121A
JP2003328731A
JP2001525902A

Shinichi Ogawa
Takashi Noguchi
Kazuhiko Saishita

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