| 摘要 |
PURPOSE:To perform wide-angled deviation, by a method wherein, in a flow direction controlling device comprising a nozzle, a guide wall, and a bias shielding wall, a flow control part, which intercepts a part of a flow running between the bias shielding plate and the nozzle, is mounted to the whole periphery of the nozzle. CONSTITUTION:In a flow direction controlling device which comprises a circular nozzle 6, having a throttle 7, a guide wall 8, and a bias shield plate 9, a nozzle projection part 12 (flow control part), projecting toward the upper stream side of a flow passage, is provided on the whole periphery of the nozzle 6. This eliminates the need to locate a deviation plate in a blow-down flow, resulting in prevention of deterioration in an airflow and prevention of disturbance of a flow, and in excellent adhesion which permits provision of wide-angled deviation. |
