The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 2009
Filed:
May. 24, 2005
Zoltan Kardos, Södertälje, SE;
Pehr Söderberg, Södertälje, SE;
Erik Söderberg, Stockholm, SE;
Hans Wikstrom, Johanneshov, SE;
Rickard Pettersson, Rönninge, SE;
Roland Ivarsson, Nykvarn, SE;
Zoltan Kardos, Södertälje, SE;
Pehr Söderberg, Södertälje, SE;
Erik Söderberg, Stockholm, SE;
Hans Wikstrom, Johanneshov, SE;
Rickard Pettersson, Rönninge, SE;
Roland Ivarsson, Nykvarn, SE;
Scania CV AB (publ), , SE;
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.