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. 15, 2009
Filed:
Sep. 11, 2006
Zhili Gerald Liu, Madison, WI (US);
Thaddeus Alan Swor, St. Paul, MN (US);
James Alan Debilzen, Brooklyn, WI (US);
Casey Lee Severance, Madison, WI (US);
Zhili Gerald Liu, Madison, WI (US);
Thaddeus Alan Swor, St. Paul, MN (US);
James Alan Debilzen, Brooklyn, WI (US);
Casey Lee Severance, Madison, WI (US);
Cummins Filtration IP Inc., Minneapolis, MN (US);
Abstract
A thermophoresis-resistant dilution apparatus for dilution of gas from an emission source, such as a combustion engine, for example a gasoline, diesel or natural gas engine. The apparatus is designed to simulate atmospheric dilution, mixing and cooling processes, enabling sampled emission gas and dilution air to thoroughly mix and cool to ambient temperature, allowing some volatile and semi-volatile gas-phase organics to nucleate, condense and coagulate to their usual aerosol phase. The apparatus is designed to resist thermophorectic forces acting on the particulate matter in the sampled emission gas, thereby preventing particulate matter losses. In addition, the apparatus evenly distributes the dilution air into the sampled gas for improved mixing.