F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
123/42
F02B 47/00 (2006.01) F01N 3/025 (2006.01) F01N 3/027 (2006.01) F01N 3/032 (2006.01) F01N 9/00 (2006.01) F01N 3/32 (2006.01) F02B 3/06 (2006.01)
Patent
CA 1216200
- 15 - ABSTRACT A method is disclosed of regenerating a filter used to extract and collect particulates from the exhaust gas of a diesel engine. When the pressure of the exhaust gas, measured at a station immediately upstream from the filter, exceeds a predetermined variable maximum allowable pressure, the following three steps are initiated. (1) The exhaust gas is bypassed around the filter and a flow of combustion supporting gas is conveyed to and through the filter at a low flow rate; (2) the temperature of the combustion supporting gas is raised to a level effective to ignite at least a leading portion of the particulate collection in the filter; and (3) the temperature of the heated gases exiting from the filter is measured, and when such temperature exceeds a predetermined level, the flow of heated gas is shut off and the regeneration cycle terminated.
445484
Rao Vemulapalli D.n.
Wade Wallace R.
Ford Motor Company Of Canada Limited
Sim & Mcburney
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