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. 01, 2014
Filed:
Mar. 24, 2009
Yasuko Suzuki, Kawasaki, JP;
Hiroaki Fujita, Kawasaki, JP;
Satoshi Hiranuma, Kawasaki, JP;
Shinichi Saito, Kawasaki, JP;
Yasuko Suzuki, Kawasaki, JP;
Hiroaki Fujita, Kawasaki, JP;
Satoshi Hiranuma, Kawasaki, JP;
Shinichi Saito, Kawasaki, JP;
Abstract
Disclosed is an exhaust purification device for an internal combustion engine provided with a venturi-shaped mixing chamber () upstream of a NOx catalyst (), said mixing chamber () formed continuously from a tapering part () along which the radius decreases in the downstream direction, a waist part () at which the radius is at smallest, and a widening part () along which the radius increases in the downstream direction. A vane plate () and an aqueous urea solution spray nozzle () are arranged inside the tapering part (). The ratio (a/b) of the distance (a) between the vane plate () and the center of the waist part () and the distance (b) between the center of the waist part () and the mouth of the NOx catalyst () is set between 0.5 and 1.0.