Company Filing History:
Years Active: 2006-2011
Title: Innovations of Jong-Hwan Lee in Emission Reduction Technologies
Introduction
Jong-Hwan Lee is a notable inventor based in Rochester Hills, MI (US), recognized for his contributions to emission reduction technologies. He holds a total of 6 patents, showcasing his commitment to advancing engineering solutions in the automotive industry.
Latest Patents
One of Jong-Hwan Lee's latest patents describes a method and apparatus designed to selectively reduce NOx emissions from internal combustion engines. This innovative exhaust aftertreatment system includes an injection device that dispenses a hydrocarbon reductant upstream of a silver-alumina catalytic reactor device. The control system determines the NO concentration and hydrocarbon/NOx ratio based on selected parameters of the exhaust gas feedstream, dispensing the hydrocarbon reductant during lean engine operation. Additionally, he has developed a method to control elements of the feedstream during lean operation, where the hydrocarbon reductant may include engine fuel. Another significant patent involves the hydrocarbon-assisted, selective catalytic reduction of NOx constituents in lean-burn engine exhaust. This process benefits from the passage of exhaust over a staged catalyst bed, which includes a first stage of an alumina-supported silver catalyst for the oxidation of NO to NO2 and partial oxidation of added hydrocarbon to an aldehyde. Downstream, a second catalyst is selected for the reaction of hydrocarbon and aldehyde species with NO to reduce it to nitrogen, with gamma-alumina and BaY zeolite being examples of suitable second-stage catalysts.
Career Highlights
Jong-Hwan Lee is currently employed at GM Global Technology Operations, Inc., where he continues to innovate and develop technologies aimed at reducing harmful emissions from vehicles. His work is pivotal in addressing environmental concerns associated with internal combustion engines.
Collaborations
Throughout his career, Jong-Hwan Lee has collaborated with esteemed colleagues, including Byong Kwon Cho and Steven Jeffrey Schmieg, contributing to a dynamic and innovative work environment.
Conclusion
Jong-Hwan Lee's contributions to emission reduction technologies reflect his dedication to improving automotive engineering and environmental sustainability. His innovative patents and collaborative efforts position him as a key figure in the field of automotive emissions research.