Patent Number: 7,820,123

Title: Device for the purification of exhaust gas

Abstract: As a device for the purification of exhaust gas, a three-way catalyst A purifying hydrocarbon, carbon monoxide and nitrogen oxide in the vicinity of theoretical air-fuel ratio is disposed at an upstream side of the exhaust gas and an adsorption catalyst B provided with zeolite effective for the adsorption of hydrocarbon is disposed at a downstream side of the exhaust gas.

Inventors: Ikeda; Takuya (Yokohama, JP), Kamikubo; Maki (Yokosuka, JP)

Assignee: Nissan Motor Co., Ltd.

International Classification: B01D 53/94 (20060101); F01N 3/10 (20060101)

Expiration Date: 2018-10-26 0:00:00