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:
Jun. 23, 2015
Filed:
Oct. 18, 2011
Peter Loman, Sollentuna, SE;
Ola Hall, Stockholm, SE;
Daniel Ryrfeldt, Hägersten, SE;
SCANIA CV AB, , SE;
Abstract
An exhaust post-treatment device () for a vehicle () for reducing nitrogen oxides present in the exhaust gases () of the vehicle () by supply of liquid reducing agent () to the exhaust gases () in an exhaust pipe (). The device () locally warms a surface () within the exhaust pipe () by a Peltier element () by using thermal energy from the exhaust gases () to vaporize liquid reducing agent () which reaches the surface (), thereby avoiding the formation of deposits of reducing agent within the exhaust pipe (). Also a method for post-treatment of exhaust gases from vehicles with an exhaust post-treatment device () including a Peltier element ().