초록 ▼

An exhaust passage extends from an internal combustion engine to conduct exhaust from the engine. A filter is disposed in the exhaust passage to filter particles out of the exhaust. A burner is disposed in the exhaust passage upstream of the filter to burn off the particles deposited on the filter.

An exhaust passage extends from an internal combustion engine to conduct exhaust from the engine. A filter is disposed in the exhaust passage to filter particles out of the exhaust. A burner is disposed in the exhaust passage upstream of the filter to burn off the particles deposited on the filter. Fuel is supplied to the burner for a preset time when the filter clogs. The supplied fuel is ignited in the burner. In the case where the fuel supplied to the burner ceases to burn prior to the end of the preset time, the fuel supply to the burner is interrupted.

대표청구항 ▼

A method of clearing an automotive exhaust filter of clogging, combustion particulates, comprising the steps of: (a) supplying fuel to a burner disposed in an exhaust passage upstream of the filter; (b) igniting the supplied fuel; (c) detecting whether the fuel supplied to the burner is burning; (d)

A method of clearing an automotive exhaust filter of clogging, combustion particulates, comprising the steps of: (a) supplying fuel to a burner disposed in an exhaust passage upstream of the filter; (b) igniting the supplied fuel; (c) detecting whether the fuel supplied to the burner is burning; (d) if the fuel is not burning after ignition, cutting off the supply of fuel to the burner and repeating the steps (a), (b), and (c); and (e) if the fuel continues to burn for a predetermined period of time after ignition, cutting off the fuel supply to the burner.