| 摘要 |
<p>A spraying machine for area-proportionate dispersion of spray-solution, e.g. a pesticide, is provided with a spray-solution circuit consisting of a tank 3, a spraying mechanism 5, as well as a pump 1 and pressure control valve 2. Furthermore, it has a speed signal transmitter 6 and a control unit 7 connected with the pressure control valve. The speed signal transmitter is formed as speed-proportionate pressure signal-producing unit (6), while the control unit (7) is formed as pressure transmitter capable to transfer the speed proportionate pressure signals of the pressure signal-producing unit (6) to the spray-solution circuit. A hand wheel acts on the control unit to allow adjustment of the degree of spring prestress. <IMAGE></p> |
