Patents by Inventor Eive Tord Ronny Allansson

Eive Tord Ronny Allansson 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).

  • Methods of controlling reductant addition
    Patent number: 7861516
    Abstract: An exhaust system for a vehicular lean-burn internal combustion engine includes a NOx reduction catalyst, a source reductant, means (20) for contacting the catalyst with the reductant, means for sensing the temperature of the exhaust gas and/or the catalyst bed and means, when in use, for controlling reductant addition. The reductant addition control means supplies an amount of reductant to the catalyst at a rate corresponding to a measured temperature value of the exhaust gas and/or catalyst bed, which temperature value has been pre-determined to correlate, in use, with an amount of NOx in the exhaust gas.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: January 4, 2011
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Eive Tord Ronny Allansson, Anders Klas Andreasson, Claus Friedrich Goersmann, Mats Lavenius, Martyn Vincent Twigg, Andrew Peter Walker