This inventor holds 4 USPTO granted patents and 1 EPO patent. Top assignees: Umicore Ag & Co Kg, Degussa Aktiengesellschaft. Active years: 1994-2006.
Company Filing History:
Years Active: 1994-2006
Title: The Innovations of Adolf Schäfer-Sindlinger
Introduction
Adolf Schäfer-Sindlinger is a notable inventor based in Frankfurt, Germany. He has made significant contributions to the field of internal combustion engine technology, particularly in the reduction of nitrogen oxides and particulate matter in exhaust gases. With a total of 4 patents to his name, his work has had a considerable impact on environmental engineering.
Latest Patents
One of his latest patents is a process for reducing nitrogen oxides. This innovative method involves selective catalytic reduction on a reduction catalyst using ammonia. In this process, a fraction of the nitrogen monoxide present in the exhaust gas is oxidized to nitrogen dioxide before the exhaust gas, along with ammonia, is passed over the reduction catalyst. The catalyst contains a zeolite exchanged with transition metals, and the oxidation of nitrogen monoxide is performed in such a way that the exhaust gas contains 30 to 70 vol. % of nitrogen dioxide before contact with the reduction catalyst.
Another significant patent is a method for removing nitrogen oxides and particulates from the lean exhaust gas of an internal combustion engine. This method also addresses low concentrations of sulfur oxides. The exhaust gas stream is passed over a nitrogen oxide storage catalyst and a particulate filter. Here, nitrogen oxides and sulfur oxides are adsorbed by the storage catalyst under lean exhaust gas conditions, while particulate matter is deposited on the particulate filter. The storage catalyst is periodically denitrated by enriching the exhaust gas during the regeneration of the particulate filter.
Career Highlights
Throughout his career, Adolf Schäfer-Sindlinger has worked with prominent companies such as Umicore AG & Co. KG and Degussa Aktiengesellschaft. His experience in these organizations has allowed him to develop and refine his innovative technologies.
Collaborations
He has collaborated with notable coworkers, including Thomas Kreuzer and Egbert Lox. Their combined expertise has contributed to the advancement of technologies aimed at reducing harmful emissions from combustion engines.
Conclusion
Adolf Schäfer-Sindlinger is a distinguished inventor whose work in reducing nitrogen oxides and particulates has made a significant impact on environmental engineering. His patents reflect a commitment to innovation and sustainability in the automotive industry.