| 摘要 |
<p>- Surface treatment by spraying. - The device for spraying a liquid substance, of the type comprising an applicator (13) intended to be connected to a feed pump supplying a flow of pressurised fluid, delivered to a nozzle (14) mounted on the applicator and producing, via a calibrated orifice (17), a jet (19) of droplets, is characterised in that it comprises, in front of and at some distance away from the calibrated orifice of the nozzle, a screen (18) which can be moved relatively and the base of which is provided with a chute (20) for recovering and recycling that part of the jet which is possibly masked by the screen. - Application to agricultural spray machinery. <IMAGE></p> |
