Title:
EXHAUST PURIFIER
Document Type and Number:
WIPO Patent Application WO/2016/002663
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an exhaust purifier (1) which is capable of restoring a pressure difference (ΔP) and a purification rate (NOx removal efficiency) of a NOx catalyst (14) to the initial states thereof. An exhaust purifier (1) for removing particulate matter adhered to a NOx catalyst (14) by injecting pressurized air using an air injection nozzle (16) into a housing (13) of a catalyst reactor (12) in which the NOx catalyst (14) serving as a catalyst is positioned, wherein the particulate matter is removed by increasing the pressure inside the catalyst reactor (12) to a prescribed pressure (ΔIP) within a prescribed interval of time (t) by operating an injection valve (17) for supplying pressurized air.
Inventors:
FUKUI YOSHINORI (JP)
TAKAHATA YASUYUKI (JP)
YAMAGUCHI YOSHIHIRO (JP)
TAKAHATA YASUYUKI (JP)
YAMAGUCHI YOSHIHIRO (JP)
Application Number:
PCT/JP2015/068542
Publication Date:
January 07, 2016
Filing Date:
June 26, 2015
Export Citation:
Assignee:
YANMAR CO LTD (JP)
International Classes:
F01N3/20; B01D53/86; B01D53/90
Foreign References:
| JPH09112248A | 1997-04-28 | |||
| JPH03130522A | 1991-06-04 | |||
| JP2003155911A | 2003-05-30 | |||
| JP2005201061A | 2005-07-28 |
Other References:
See also references of EP 3163040A4
Attorney, Agent or Firm:
YANO Juichiro (JP)
Juichiro Yano (JP)
Juichiro Yano (JP)
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