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:
Apr. 30, 2019
Filed:
Feb. 27, 2015
Scania Cv Ab, Södertälje, SE;
Magnus Nilsson, Årsta, SE;
Henrik Birgersson, Stockholm, SE;
Scania CV AB, Södertälje, SE;
Abstract
Methods and systems are provided for treatment of an exhaust stream that comprises nitrogen oxides NO. The method comprises supplying a first additive to the exhaust stream as a first reduction of a first amount of nitrogen oxides NOreaching a first device, arranged to impact the first amount of nitrogen oxides NO. The method also comprises supplying a second additive to the exhaust stream, which is used as a second reduction of a second amount of nitrogen oxides NOreaching a second device, arranged to reduce the second amount of nitrogen oxides NO. At least one of the first supply and the second supply is controlled, based on a total ability for the first device to provide the first reduction, and for the second device to provide the second reduction, so that a required total reduction on the nitrogen oxides NOin the exhaust stream is provided.