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:
Jun. 22, 2010
Filed:
Feb. 15, 2006
Hirohisa Suwabe, Tochigi-ken, JP;
Hiroshi Funabashi, Tokyo, JP;
Hirohisa Suwabe, Tochigi-ken, JP;
Hiroshi Funabashi, Tokyo, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Hino Motors Ltd., Tokyo, JP;
Abstract
An apparatus for cleaning an exhaust gas containing nitrogen oxide and particulate matter and discharged from a diesel engine, wherein the apparatus comprises a porous ceramic honeycomb filter and an SCR catalytic converter in this order from upstream, wherein the honeycomb filter has pluralities of flow paths partitioned by porous cell walls and a catalyst supported by the porous cell walls, with desired flow paths sealed by plugs, and wherein at least one plug on the side of an exhaust gas inlet is separate inward from an exhaust gas inlet end. A ratio D/V of the diameter D (mm) of the honeycomb filter to the displacement V (liter) of the diesel engine is preferably 15 mm/liter or more. The honeycomb filter and an SCR catalytic converter are preferably contained in one case.