Patents by Inventor Pehr Soderberg

Pehr Soderberg 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
  • Publication number: 20080053090
    Abstract: An arrangement for recirculation of exhaust gases of a supercharged combustion engine. The arrangement comprises an exhaust line operable to lead exhaust gases out from the combustion engine, an inlet line operable to lead air at above atmospheric pressure to the combustion engine, a return line which connects the exhaust line to the inlet line so that via the return line, it is possible to recirculate exhaust gases from the exhaust line to the inlet line. An EGR cooler in which the recirculating exhaust gases in the return line are cooled by a coolant before they are mixed with the air in the inlet line. The exhaust gases in the EGR cooler are cooled by a circulating coolant which is adapted to being at a temperature substantially corresponding to the temperature of the surroundings of the engine when the coolant is led into the EGR cooler.
    Type: Application
    Filed: May 24, 2005
    Publication date: March 6, 2008
    Applicant: SCANIA CV AB (PUBL)
    Inventors: Zoltan Kardos, Pehr Soderberg, Erik Soderberg, Hans Wikstrom, Rickard Pettersson, Roland Ivarsson
  • Publication number: 20080047267
    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: Application
    Filed: May 24, 2005
    Publication date: February 28, 2008
    Inventors: Zoltan Kardos, Pehr Soderberg, Erik Soderberg, Hans Wikstrom, Rickard Pettersson, Roland Ivarsson
  • Publication number: 20070266964
    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: Application
    Filed: June 28, 2005
    Publication date: November 22, 2007
    Inventor: Pehr Soderberg