| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an air nozzle capable of improving the uniformity of the flow rate of a blown-off gas in a gas blown-off port. <P>SOLUTION: The air nozzle 10 includes: three chambers C1, C2, C3; a connection flow passage connecting between the chambers; a supply flow passage 12 for supplying the gas to the upstream end chamber C1; and an blown-off flow passage for blowing off the gas from the downstream end chamber C3; wherein the gas is blown-off from the blown-off flow passage along the width direction of paper. Each of the blown-off flow passage and the connection flow passage is a plate-like tube extended in the width direction. Also, each of the upstream end chamber C1 and the intermediate chamber C2 has a cylindrical outer peripheral wall extended along the width direction, and in the outer peripheral wall, introduction ports I1, I2 for introducing the gas and delivery ports D1, D2 extended in the width direction are formed. The delivery ports D1, D2 are formed in the outer peripheral wall so as to be opposed to the turning direction of the turning flow SwF2, SwF3 of the gas turning along the inner peripheral surface of the outer peripheral wall. <P>COPYRIGHT: (C)2012,JPO&INPIT |
