| 摘要 |
<p>The adjustable liquid discharge nozzle has three pre-set discharge rates and a stop position. Adjustment is effected at the outlet, by means of a slide (2) working in a bore (5) of suitable shape. There may be a core sliding in the nozzle body, the core having an axial bore discharging sideways into a groove (6) formed in the core. The body has a chamber of larger diameter (8) than its bore, and through which the liquid flows. There may be two toroidal seals (7, 7') on opposite sides of the groove, working against the walls of the bore.</p> |
