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:
Sep. 22, 1998
Filed:
Apr. 02, 1997
Applicant:
Inventors:
Theodore J Tarabulski, Brewster, NY (US);
Jeremy D Peter-Hoblyn, Cornwall, GB;
James M Valentine, Fairfield, CT (US);
Assignee:
Clean Diesel Technologies, Inc., Stamford, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; F01N / ;
U.S. Cl.
CPC ...
60274 ; 60286 ; 423212 ; 423235 ;
Abstract
Urea or other solid NO.sub.x -reducing reagent is employed in a selective catalytic reduction process on emissions from diesel and lean-burn gasoline engines. The solid reagent is fed to a gas generator that produces a reactant gas by heating. In one embodiment the reactant gas is maintained at elevated temperatures to prevent condensation products from forming. The reactant gas contains ammonia and is fed to the exhaust on an as-needed basis.