EXHAUST PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE

摘要

The objective of the present invention is to suppress biasing of an additive supplied into the exhaust from an internal combustion engine, thus more evenly dispersing the additive. Thus, this exhaust purification device for an internal combustion engine is provided with: an exhaust purification catalyst that is provided to the exhaust pathway of the internal combustion engine; a supply section that supplies the additive to the exhaust purification catalyst; and a dispersion section (5) that disperses the additive and is provided between the exhaust purification catalyst and the supply section. The dispersion section (5) is provided with a first gas flow forming section (54) and a second gas flow forming section (55). The first gas flow forming section (54) and the second gas flow forming section (55) are formed in a manner so as to cause the mutual interference of a first gas flow that has passed through the first gas flow forming section (54) and a second gas flow that has passed through the second gas flow forming section (55).