PROBLEM TO BE SOLVED: To provide an electrostatic atomization generator which charges fine particles with an average particle diameter of several microns or less and can discharge the fine particles.SOLUTION: An electrostatic atomization generator 10 has a liquid nozzle section 20 which discharges a liquid column 38 to a release space and is formed of an insulator material, a liquid conduit section 18 which guides a pressurized liquid to the liquid nozzle section and is formed of the insulator material, a liquid side electrode 16 which is arranged inside of the liquid conduit section and is brought into contact with the liquid, and a gas nozzle section 24 arranged in the periphery of the liquid nozzle portion. The electrostatic atomization generator further includes a gas conduit section 36 which acts a gas flow from the gas nozzle section at an atomization point P of the liquid column discharged to the release space from the liquid nozzle section to atomize the liquid column and produce an atomized flow 40 being a flow of a gas flow containing fine particle and is formed of the insulator material, and an induction electrode 26 which is arranged so as to surround the atomization point positioned in the release space and has such a ring shape that an electrode conductor 28 formed of the conductor material is covered with the insulator material； and applies a predetermined voltage between the electrode on the liquid side and the induction electrode from a power source section 54 to discharge the atomized flow of the charged fine particles.SELECTED DRAWING: Figure 1【課題】平均粒子径を数ミクロン以下とする微粒子を帯電して放出可能とする静電噴霧発生装置を提供する。【解決手段】静電噴霧発生装置10は、液体柱38を解放空間に放出する絶縁体材質の液体ノズル部20と、加圧液体を液体ノズル部に導く絶縁体材質の液体導管部18と、液体導管部の内部に配置され、液体と接触する液体側電極16と、液体ノズル部の周囲に配置される気体ノズル部24を有し、液体ノズル部から解放空間に放出される液体柱の噴霧化点Pにおいて、気体ノズル部からの気体流を作用させることにより液体柱を微粒子化して微粒子を含んだ気流の流れである噴霧流40を生成する絶縁体材質の気体導管部36と、開放空間に位置する噴霧化点を囲んで配置され、導体材質の電極導体28を絶縁体材質で被覆したリング形状を持つ誘導電極26を備え、電源部54から液体側電極と誘導電極間に所定電圧を与えることで帯電した微粒子の噴霧流を放出させる。【選択図】図１
