Denso Corporation

Yugo Osaka

Hideto Takeda

Akihiro Matsuyama

Noriyuki Kobayashi

An exhaust gas purification device includes an exhaust pipe defining an exhaust passage, a first SOadsorption portion having a first SOadsorption material provided in the exhaust passage, a second SOadsorption portion having a second SOadsorption material provided in the exhaust passage, and a NOcatalyst provided downstream of the first SOadsorption portion and the second SOadsorption portion in the exhaust passage. The first SOadsorption material is configured to adsorb SOin the combustion gas at a temperature lower than a first set temperature. The second SOadsorption material is configured to store SOin the combustion gas at a temperature equal to or higher than a second set temperature, and the stored SOcan be kept at a temperature lower than the second set temperature. Therefore, the exhaust gas purification device can adsorb SOin the exhaust gas with high efficiency.

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Nagoya, Japan

Yugo Osaka