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:
Jan. 14, 2014
Filed:
Oct. 21, 2009
Hans Wikström, Johanneshov, SE;
Hans Wikström, Johanneshov, SE;
Scania CV AB, , SE;
Abstract
An arrangement for recirculation of exhaust gases of a combustion engine () in a vehicle (), including an exhaust line () to lead exhaust gases out from the combustion engine (), and a return line () for recirculating part of the exhaust gases in the exhaust line () to the combustion engine (). A high-temperature cooling system () containing a circulating coolant in the form of a liquid medium which, at an intended operating pressure in the high-temperature cooling system (), has a boiling point of at least° C. An EGR cooler () subjects the recirculating exhaust gases in the return line () to a first step of cooling by the circulating high-temperature coolant. A radiator element () cools the high-temperature coolant by air. There is a second cooler cooled by engine coolant which cools gases in the return line. There is an optional third low-temperature cooling system and a further cooler in the third system cooling gases in the return line.