| 摘要 |
PROBLEM TO BE SOLVED: To shorten such time that an exhaust gas-cleaning catalyst arranged on the downstream side of an HC adsorption member is raised to activation temperature. SOLUTION: In the device for cleaning exhaust gas, an HC adsorption member 1 is arranged on the upstream side of the flow path of exhaust gas and an exhaust gas-purifying catalyst 2 is arranged on the downstream side thereof. The end face of the HC adsorption member 1 opposed to exhaust gas flow is formed into a truncated cone shape and also a hole part 14, which is opened in the end face and extended into the inner part of a honeycomb base material, is formed. A comparatively large part of exhaust gas reaching the ed face on the upstream side of the HC adsorption member 1 pass through the hole part 14 and therefor exhaust gas rapidly reaches the exhaust gas leaning catalyst 2 and the temperature of the same is rapidly raised. |
