To provide a spray nozzle suppressing diffusion of spray to heighten reachability of droplets to an object, and to provide an injector using the same.SOLUTION: A spray nozzle 1A comprises turning air flow paths 11-1,11-2,11-3,11-4,11-5 with fan-shaped cross-sections, provided at an equal interval in a circumferential direction, and radially directing from downward to upward in an axial direction. A turning air flow is formed by the spray nozzle 1A, and diffusion of spray is suppressed by the turning air flow, that is, a spray angle is made small so as to heighten reachability of droplets to an object. Due to that droplets get on the turning air flow and obliquely collide with the object, a feeling of discomfort is reduced.SELECTED DRAWING: Figure 2【課題】噴霧の拡散が抑制され、液滴の対象物への到達性を高くできる噴射ノズル及びこれを用いた噴射装置を提供する。【解決手段】周方向に等間隔で設けられ、軸方向の下方から上方へ螺旋状に向う扇形断面の旋回気流路１１－１、１１－２、１１－３、１１－４、１１－５を有する噴射ノズル１Ａである。噴射ノズル１Ａによって旋回流が形成され、該旋回気流によって噴霧の拡散が抑制、つまり、噴霧角が小さくされるため、液滴の対象物への到達性を高くできる。また、液滴は旋回気流に乗って対象物へ斜めに衝突するので、不快感を低減できる。【選択図】図２
