초록 ▼

An exhaust gas cleaning device for collecting carbon particulates in the exhaust gases, is disclosed. The device is provided with a filter member formed of a material having interconnected pores and an electric heater which is buried within the exhaust gas inlet end portion of the filter member. Acc

An exhaust gas cleaning device for collecting carbon particulates in the exhaust gases, is disclosed. The device is provided with a filter member formed of a material having interconnected pores and an electric heater which is buried within the exhaust gas inlet end portion of the filter member. According to the exhaust gas cleaning device of the present invention, the carbon particulates collected in the inlet end portion of the filter member is directly heated by means of the electric heater which is provided in the inlet end portion of the filter member. Therefore, carbon particulates can be ignited by a small amount of electric power.

대표청구항 ▼

An exhaust gs cleaning device including a casing having an inlet and outlet for collecting carbon particulates in exhaust gases emitted from a diesel engine and for heating and burning the collected carbon particulates, comprising: a filter member positioned in said casing and which collects carbon

An exhaust gs cleaning device including a casing having an inlet and outlet for collecting carbon particulates in exhaust gases emitted from a diesel engine and for heating and burning the collected carbon particulates, comprising: a filter member positioned in said casing and which collects carbon particulates in exhaust gases flowing therethrough; said filter member being formed of heat resistant porous material having interconnected fine pores; said filter member being composed of two filter elements having different cell densities and which closely contact with each other; one of said two filter elements having a higher cell density being arranged on the upstream side of the other filter element on the inlet side of said casing; an electrical heating means which heats and burns the collected carbon particulates; said heating means being provided with at least one heater wire which is buried within said filter element having a higher cell density; and a heating means operating means which supplies an electric current to said electrical heating means when the amount of carbon particulates collected by said filter member reaches a predetermind amount.