초록 ▼

An exhaust gas cleaning device for an internal combustion engine comprises a housing provided with an inlet port which is communicated with an exhaust pipe of an internal combustion engine and an outlet port, two particulates collecting members disposed in two independent exhaust gas flowing passage

An exhaust gas cleaning device for an internal combustion engine comprises a housing provided with an inlet port which is communicated with an exhaust pipe of an internal combustion engine and an outlet port, two particulates collecting members disposed in two independent exhaust gas flowing passages which are communicated with the inlet port through an inlet chamber and with the outlet port through an outlet chamber, a butterfly valve provided in the inlet chamber for alternately directing the exhaust gases into either one of the exhaust gas flowing passages and a heated air supplying means for burning off the particulates collected by the particulates collecting members, which is provided with a heated air outlet port opening into the inlet chamber so as to be opposed to the inlet port with the butterfly valve therebetween.

대표청구항 ▼

An exhaust gas cleaning device for collecting and burning particulates contained within exhaust gases discharged from an internal combustion engine, comprising: a housing provided with an exhaust gas inlet chamber which is communicated with an exhaust gas inlet port, an exhaust gas outlet chamber wh

An exhaust gas cleaning device for collecting and burning particulates contained within exhaust gases discharged from an internal combustion engine, comprising: a housing provided with an exhaust gas inlet chamber which is communicated with an exhaust gas inlet port, an exhaust gas outlet chamber which is communicated with an exhaust gas outlet port, and two independent exhaust gas flowing passages which are formed between said exhaust gas inlet chamber and said exhaust gas outlet chamber so as to be communicated therewith; a pair of particulates collecting members for collecting said particulates, which are made of heat resistant material having air permeability; each of said collecting members being disposed within each of said exhaust gas flowing passages; an exhaust gas diverter valve which is disposed within said inlet chamber so as to be opposed to said exhaust gas inlet port for alternately directing the exhaust gas flowing from said exhaust gas inlet port to either one of said exhaust gas flowing passage while blocking the exhaust gases to the other flowing passage; a heated air supplying means for burning off said particulates collected in said collecting member disposed in said other flowing passage; said exhaust gas diverter valve being composed of a butterfly valve which is supported by a valve shaft in the central portion of said inlet chamber so as to turn by a predetermined degree clockwise and counterclockwise; and said heated air supplying means comprising a heated air outlet port which opens into said exhaust gas inlet chamber so as to be opposed to said exhaust gas inlet port with said butterfly valve between.