CATALYTIC CONVERTER OF INTERNAL COMBUSTION ENGINE AND APPARATUS FOR PURIFYING EXHAUST GAS PROVIDED WITH THE SAME

摘要

A catalytic converter of an internal combustion engine may include: at least one inlet channel having an end through which an exhaust gas is flowed into and the other end which is blocked; at least one outlet channel having an end which is blocked and the other end through which the exhaust gas is discharged; and a wall defining a boundary between neighboring inlet channel and outlet channel, and adapted to flow the exhaust gas from the inlet channel to the outlet channel, wherein the wall includes a single-layered portion formed at an end portion and having a three-way catalyst layer, and a multi-layered portion being the portion other than the single-layered portion and having a three-way catalyst layer, a hydrocarbon trap layer and an insulating layer. An apparatus of purifying an exhaust gas is also provided.

主权项

1. A catalytic converter of an internal combustion engine, comprising:
at least one inlet channel having an end through which an exhaust gas flows into and an other end which is blocked; at least one outlet channel having an end which is blocked and an other end through which the exhaust gas is discharged; and a wall defining a boundary between a neighboring inlet channel and outlet channel, and adapted to direct the exhaust gas from the inlet channel to the outlet channel; wherein the wall includes a single-layered portion formed at an end portion and having a three-way catalyst layer, and a multi-layered portion being the portion other than the single-layered portion and having a three-way catalyst layer, a hydrocarbon trap layer and an insulating layer.