Patents by Inventor Pehr Söderberg

Pehr Söderberg 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).

  • Patent number: 7617679
    Abstract: An arrangement for recirculation of exhaust gases of a supercharged combustion engine. A return line which connects an engine exhaust line to an air inlet line for air supply to the combustion engine, to recirculate exhaust gases via the return line. A first EGR cooler in which the recirculating exhaust gases in the return line are cooled, as a first step, by a first coolant in a first cooling system. A second EGR cooler in which the recirculating exhaust gases in the return line are cooled, as a second step, by a second coolant in a second cooling system, and the second coolant is adapted to be at a temperature substantially corresponding to the temperature of the ambient surroundings when it is led into the second EGR cooler. A charge air cooler for the inlet line, a radiator for the second cooling system to cool the exhaust gases and a radiator element for cooling the second coolant.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: November 17, 2009
    Assignee: Scania CV AB (publ)
    Inventors: Zoltan Kardos, Pehr Söderberg, Erik Söderberg, Hans Wikstrom, Rickard Pettersson, Roland Ivarsson
  • Patent number: 7533637
    Abstract: Method for cooling in a motor vehicle comprising: cooling at least the vehicle engine by a liquid-based cooling system in which coolant is cooled by air in a first heat exchange element which is by the vehicle radiator; heating the cab of the motor vehicle by heating air by using a coolant in a separate second cab exchange element and supplying the heated air to the cab by a fan. The second cab heat exchange element is arranged in a separate cooling configuration by which coolant in the second heat exchange element is cooled by air which is thereafter supplied to spaces other than the cab. There are also devices for accomplishing such cooling, such heating, such heat exchange and such supplying of air.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: May 19, 2009
    Assignee: Scania CV AB (publ)
    Inventor: Pehr Söderberg