Abstract: The present invention relates to a catalytic converter apparatus for purifying exhaust gas from an internal combustion engine for vehicles. The catalytic converter apparatus includes a first catalytic converter that holds a first catalyst and that is to be coupled to a side of the engine, and a second catalytic converter that holds a second catalyst and that is coupled to a rear of the first catalytic converter. Each of the first and second catalysts has a catalytic support on which a wash coat layer having a thickness equal to or less than 0.2 mm is formed. The wash coat layer includes a first wash coat layer and a second wash coat layer, and each of the first and second wash coat layers has voids therein. This catalytic converter apparatus achieves an improved purification property with a small number of cells and a small amount of noble metal.

Abstract: The present invention relates to an exhaust gas purification apparatus which has an enhanced property of purifying exhaust gas from an internal combustion engine for vehicles, and which is configured to decrease the exhaust gas pressure of the engine. The exhaust gas purification apparatus includes an engine head block, where exhaust pipes combine, has a side on which an exhaust outlet is formed, a first catalytic converter that holds a first catalyst and that is to be coupled to a side of the engine head block, a second catalytic converter that holds a second catalyst and that is coupled to a rear of the first catalytic converter, an exhaust pipe that couples the engine head block to the first catalytic converter. Moreover, the first and second catalysts withstand a temperature equal to/more than 800° C.

Abstract: The present invention relates to a catalytic converter apparatus for purifying exhaust gas from an internal combustion engine for vehicles. The catalytic converter apparatus includes a first catalytic converter that holds a first catalyst and that is to be coupled to a side of the engine, and a second catalytic converter that holds a second catalyst and that is coupled to a rear of the first catalytic converter. Each of the first and second catalysts has a catalytic support on which a wash coat layer having a thickness equal to or less than 0.2 mm is formed. The wash coat layer includes a first wash coat layer and a second wash coat layer, and each of the first and second wash coat layers has voids therein. This catalytic converter apparatus achieves an improved purification property with a small number of cells and a small amount of noble metal.