Hyundai Motor Company

Kia Motors Corporation

Jie Won Park

Jin Ha Lee

Yeon-Su Kim

Ho-In Lee

Yong-Kwon Chung

Hyokyung Lee

Myung Jong Lee

A method for controlling an exhaust gas purification system that can effectively implement desulfation of a selective catalytic reduction (SCR) device. The method for controlling an exhaust gas purification system, in which a diesel particulate filter (DPF) and an SCR device are combined, may include calculating a sulfur poisoning amount of the SCR device and an amount of soot loading in the DPF; and increasing a temperature of the SCR device to a desulfation temperature when the sulfur poisoning amount is greater than a first predetermined value and the amount of soot loading is less than a second predetermined value.

Method for controlling exhaust gas purification system

A catalyst for diesel particle filter includes a platinum (Pt)-neodymium (Nd) alloy that is carried in silica, a preparation method thereof and a soot reduction device for diesel engine including the same, wherein the catalyst for diesel particle filter can maintain high catalyst activity and implement high nitrogen monoxide (NO) conversion efficiency even though it is used under the high temperature or vulcanization condition for a long time.

Catalyst for diesel particle filter, preparation method of the same, and soot reduction device of diesel engine including the same

An exhaust system may include an exhaust line through which exhaust gas that is formed in an engine is exhausted, a nitrogen oxide purification catalyst that is disposed on the exhaust line to reduce nitrogen oxide that is included in the exhaust gas, an injector to additionally inject fuel into the exhaust line or a cylinder, and a fuel cracking catalyst that is disposed between the injector and the nitrogen oxide purification catalyst to crack the fuel that is injected through the injector, to transform the injected fuel into a high efficiency reducing agent, and to raise the temperature of the latter part thereof through an oxidation reaction.

Exhaust system

Growing community of inventors

Suwon, South Korea

Jie Won Park