F - Mech Eng,Light,Heat,Weapons – 01 – N
Patent
F - Mech Eng,Light,Heat,Weapons
01
N
172/14, 317/2.1,
F01N 3/00 (2006.01) B01D 53/94 (2006.01) B03C 3/019 (2006.01) B03C 3/06 (2006.01) B03C 3/70 (2006.01) F01N 3/01 (2006.01) F01N 3/022 (2006.01) F01N 3/027 (2006.01) F01N 3/031 (2006.01) F01N 3/28 (2006.01) F01N 9/00 (2006.01) F01N 13/02 (2010.01) F01N 3/021 (2006.01) F01N 3/06 (2006.01) F01N 3/30 (2006.01) F02B 1/04 (2006.01) F02B 3/06 (2006.01)
Patent
CA 2001226
DIESEL ENGINE EXHAUST OXIDIZED ABSTRACT OF THE DISCLOSURE A device for connection to a diesel engine to collect soot and other particulate emissions before the exhaust is discharged to atmosphere. When the filter becomes loaded with particulates to the point where it either may not function properly or otherwise interferes with the vehicle's operation, a forced regeneration cycle is induced. During forced regeneration a valve mechanism at the inlet to the device is operated to divert flow from the main flow path into a by-pass passage, and an electric power heater is energized elevating the temperature of the filter to burn off the accumulated particulate material. The valve mechanism is duty cycled as the forced regeneration process continues. As the process concludes, the valve open time increases and this increase is monitored to terminate the duty cycle operation so that the main passage through the device is now open. The main passage through the device contains a series of nested vanes which take the axial flow of particulate-containing exhaust and direct it outwardly through the filter which is located just after the vanes. In certain embodiments an electrostatic precipitator precedes the filter to enhance soot collection efficiency.
Kammel Refaat A.
Macrae & Co.
LandOfFree
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