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:
Oct. 19, 2004
Filed:
Jan. 09, 2001
Applicant:
Inventors:
Anders Andreasson, Frolunda, SE;
Guy Richard Chandler, Little Eversden, GB;
Claus Friedrich Goersmann, Cambridge, GB;
James Patrick Warren, Cambridge, GB;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B 2/100 ;
U.S. Cl.
CPC ...
C01B 2/100 ;
Abstract
Selective catalytic reduction of NO in combustion gases, especially from diesel engines, utilizes a system incorporating an oxidation catalyst to convert at least a portion of NO to NO , a particulate filter downstream of the oxidation catalyst, a source of reductant such as NH or urea for injection downstream of the particulate filter, and an SCR catalyst located downstream of the point of injection of the reductant. Considerable improvements in NO conversion are observed.