公开(公告)号：US3659151A

公开(公告)日：1972-04-25

申请号：US3659151D

申请日：1969-12-10

Applicant: TUNZINI SAMES

Inventor： FABRE PIERRE

IPC: B05B5/03 ,  B05B5/02

CPC classification number: B05B5/032

Abstract: This invention concerns a spray nozzle fed with the powder conveyed in an air stream constructed so that expansion of the air conveying the powder is effected in the nozzle and the spread of the spray jet issuing from the nozzle is adjusted by regulating the flow of an auxiliary jet of air which whirls about the air stream conveying the powder. In a specific embodiment the nozzle comprises a conduit having a downstream portion of larger cross-section than the cross-section of an upstream portion thereby forming an expansion chamber in the nozzle; and the jet of whirling air is admitted to the nozzle conduit downstream of the expansion chamber. A conductive core is mounted coaxially in the nozzle conduit and is adapted to be connected to a source of high voltage. The ionization means for ionizing the air conveyed powder are at the outlet of the nozzle.

Abstract translation: 本发明涉及一种喷射喷嘴，其供给在气流中输送的粉末，其构造成使得在喷嘴中实现输送粉末的空气的膨胀，并且通过调节辅助流体的流动来调节从喷嘴发出的喷雾的扩展 围绕输送粉末的气流旋转的空气射流。 在具体实施例中，喷嘴包括具有比上游部分的横截面大的横截面的下游部分的导管，从而在喷嘴中形成膨胀室; 并且旋转空气射流进入膨胀室下游的喷嘴导管。 导电芯同轴地安装在喷嘴管道中，并且适于连接到高压源。 用于离子化输送空气的粉末的电离装置位于喷嘴的出口处。