PROBLEM TO BE SOLVED: To provide a dispersing unit which is extremely compact in construction, is simple in construction and with which a fine particle fraction can be generated which is as high as possible without suction force loss.SOLUTION: The dispersing unit for a powder inhaler comprises a mouthpiece (10) with an annular channel (12) for the delivery of a stream of particles. The annular channel has an axial inlet (14) and an axial outlet (16), the axial outlet (16) is adjoined by an annular deflection chamber (18), in the annular deflection chamber (18), the axially incoming stream of particles is deflected to a predominantly radial direction of flow. The deflection chamber is adjoined in the axial direction by a rotation chamber (20) with a circular peripheral wall (22) and an axial outlet (24).COPYRIGHT: (C)2013,JPO&INPIT【課題】本発明は粉末吸入器用の分散装置に関する。【解決手段】本発明の粉末吸入器用の分散装置は、粒子の流れを供給するための環状の流路(12)を有するマウスピース(10)を含む。この環状の流路は、軸方向の流入口(14)および軸方向の流出口(16)を有し、この軸方向の流出口(16)には、環状の方向変換チャンバ(18)が隣接する。この方向変換チャンバ(18)内において、軸方向に流入する粒子の流れが主として半径方向の流れに方向変換される。方向変換チャンバには、円周壁(22)および軸方向流出口(24)を有する回転チャンバ(20)が軸方向において隣接する。【選択図】図1