Particulate trap for diesel engines

Details Particulate trap for diesel engines Particulate trap for diesel engines

F - Mech Eng,Light,Heat,Weapons

01

N

F01N 3/035 (2006.01) F01N 3/022 (2006.01) F01N 3/023 (2006.01) F01N 3/28 (2006.01)

Patent

CA 2312609

A particulate trap that burns and removes particulate matters (particles, consisting mainly of carbon particles, contained in the exhaust gas of a diesel engine of a car) trapped by a filter without using a specifically provided heat source such as a burner or an electric heater even when the car is running in ordinary urban areas, i.e., when the exhaust gas is low in temperature. In the particulate trap, a catalytic converter 3, formed of a metallic porous body hav- ing a three-dimensional network structure, carrying an oxidizing catalyst is placed upstream of a filter 4 that traps particulate matters. The catalytic con- verter 3 oxidizes NO in the exhaust gas into NO2, which in turn burns and re- moves particulate matters trapped by the filter 4.

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