Gas separation: processes – Filtering – With cleaning of filter
Reexamination Certificate
2011-03-22
2011-03-22
Smith, Duane (Department: 1776)
Gas separation: processes
Filtering
With cleaning of filter
C055S523000, C055S302000, C422S177000
Reexamination Certificate
active
07909916
ABSTRACT:
Provided is a method for performing maintenance of a particulate which can reliably remove combustion residue by means of backwash air without use of hot water and the like while cutting equipment expenses, so that substantial increase in exhaust pressure and deterioration of fuel economy during operation can be prevented.When maintenance of the particulate filter4is to be performed, a filler13is filled to each of passages8with outlets unplugged with plugs9so as to reduce an inner volume of the passage8, and then backwash air12is blown into the passages8with the unplugged outlets.
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Kunishima Eiji
Muramatsu Toshikatsu
Ohya Toshiki
Ozawa Jun
Hino Motors Ltd.
McKenzie Thomas Bennett
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Smith Duane
Tokyo Roki Co., Ltd.
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