F - Mech Eng,Light,Heat,Weapons – 01 – N
Patent
F - Mech Eng,Light,Heat,Weapons
01
N
F01N 3/10 (2006.01) F01N 3/025 (2006.01) F01N 3/031 (2006.01) F01N 9/00 (2006.01) F02B 3/06 (2006.01)
Patent
CA 2078096
A B S T R A C T A device for removing particles from diesel engine exhaust gas, comprising: (a) a particle filter through which engine exhaust gas is flown during operation thereof; (b) a burner for liquid fuel having a combustion chamber and being associated with said filter such that during operation of the burner the hot combustion gases thereof flow through said filter so as to burn off filtered particles; (c) a blower for supplying combustion air to said burner; and (d) a pump for supplying the fuel to said burner, c h a r a c t e r i z e d in (e) that a burner is provided which is operable in a large range of the fuel/air ratio and is con- trollable in its power in a large range solely by controlling the fuel supply, (f) said burner including a second combustion chamber section on its downstream side, having a com- bustion air supply connecting piece having at its mouth an orientation with a circumferential component, - 20 - (g) and including a first combustion chamber section on its upstream side, having a connecting piece in which an electrical ignition means is disposed and which is provided with openings for supplying the fuel and a partial combustion air stream, (h) that a partition member having at least one flow opening is provided between said first and second combustion chamber sections, (i) that a temperature sensor is provided in the region of the filter for detecting the tem- perature condition of the filter; and (k) that an electric control is provided having the temperature sensor and the fuel pump of the bur- ner connected thereto, said control being so de- signed that, depending on the detected tempera- ture condition, such a fuel quantity is supplied to the burner that a temperature advantageous for burning off the filtered particles is present at the filter.
Eberspacher J.
Sim & Mcburney
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