Title:
CLEANING METHOD FOR PARTICULATE FILTER
Document Type and Number:
Japanese Patent JP3941550
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cleaning method capable of uniformly and efficiently washing the whole area of a particulate filter with water to efficiently wash away combustion residues having high viscosity and many SOF components, and surely avoiding the degradation of catalytic performance and breakage of the particulate filter.
SOLUTION: In this cleaning method for a particulate filter 4 provided in the middle of an exhaust pipe and collecting particulates in exhaust gas, water or vapor of >80°C is sprayed onto the particulate filter 4 at an injection pressure of 0.5-2 MPa and to attain a liquid phase condition at the time of the attainment of washing away combustion residues 12.
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Inventors:
Hiroshi Funahashi
Hisaki Tsusaka
Toshiki Oya
Hisaki Tsusaka
Toshiki Oya
Application Number:
JP2002062214A
Publication Date:
July 04, 2007
Filing Date:
March 07, 2002
Export Citation:
Assignee:
Hino Motors Ltd.
International Classes:
F01N3/02; B01D41/04; (IPC1-7): F01N3/02; B01D41/04
Domestic Patent References:
| JP7096120A | ||||
| JP9253439A | ||||
| JP4189652A |
Attorney, Agent or Firm:
Tsunemitsu Yamada
Seiichi Otsuka
Seiichi Otsuka