To provide a stirring blade for mixing gases can quickly stir and mix gases in an exhaust gas duct to which two or more kinds of gases are introduced, and be easily manufactured as it has a simple structure.
This stirring blade disposed in the exhaust gas duct to which two or more kinds of gases are introduced to mix the gases, is composed of a set of two sheets of rectangular plate bodies 2, 2 mounted on a shaft 12 orthogonally to the longitudinal direction at a center of the duct 10, and two sheets of rectangular plate bodies 2, 2 are mounted in a state that they are intersected with each other on the shaft in a side view of the duct, and obliquely twisted in the same direction to the longitudinal direction in a plane view of the duct. An projection area to the duct cross-sectional direction of the intersected two sheets of rectangular plate bodies 2, 2 is preferably within a range of 15-30% to a cross-sectional area of the duct 10.
COPYRIGHT: (C)2010,JPO&INPIT
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Fumio Yamamoto
Yukine Sekine