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:
Aug. 14, 2012
Filed:
Oct. 27, 2009
Z. Gerald Liu, Madison, WI (US);
Jim Clerc, Columbus, IN (US);
Jason Drost, Edgerton, WI (US);
Jim Burke, Columbus, IN (US);
Mihai Chiruta, Madison, WI (US);
Achuth Munnannur, Stoughton, WI (US);
Z. Gerald Liu, Madison, WI (US);
Jim Clerc, Columbus, IN (US);
Jason Drost, Edgerton, WI (US);
Jim Burke, Columbus, IN (US);
Mihai Chiruta, Madison, WI (US);
Achuth Munnannur, Stoughton, WI (US);
Cummins Filtration IP, Inc., Minneapolis, MN (US);
Abstract
According to one embodiment, a reductant injection apparatus includes an injector attachment portion to which a reductant injector is coupleable. The apparatus also includes a perforated tubular portion coupled to the injector attachment portion. The perforated tubular portion includes an inlet, an outlet, and a diverging sidewall extending from the inlet to the outlet. Additionally, a plurality of perforations is formed in the sidewall. A reductant spray can be injected into the perforated tubular portion via the inlet. Further, a portion of a bulk exhaust gas stream can be diverted into the perforated tubular portion through the plurality of perforations, through the perforated tubular element, and out of the perforated tubular portion through the plurality of perforations. The portion of exhaust gas stream can then be rejoined with the bulk exhaust gas stream downstream of the perforated tubular portion.