Patents by Inventor J{umlaut over (u)}rgen Z{umlaut over (u)}rbig

J{umlaut over (u)}rgen Z{umlaut over (u)}rbig has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and device for operating an internal combustion engine operating with an excess of air
    Patent number: 6173568
    Abstract: A bypass leads away from the exhaust pipe and the bypass flow is set with an electrically actuable exhaust gas valve. Under certain operating states of the internal combustion engine, in particular when the load is increasing rapidly or during warmup, a portion or the entire exhaust gas flow is diverted through a combined hydrolysis/adsorption catalytic converter in the bypass line. The NOx contained in the exhaust gas is adsorbed in a particularly favorable manner.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: January 16, 2001
    Assignee: Siemens Aktiengesellschaft
    Inventors: J{umlaut over (u)}rgen Z{umlaut over (u)}rbig, Rainer Tost, Winfried Dölling, Reinhard Latsch