| 摘要 |
<p>A swirl effect for a high pressure spray cleaner has a conical jet housing (11) with a rotating element (5) with the lower end on a pivot mounting (19) and with the upper end with a water inlet (8). The upper part of the rotating element has a profiled outer surface (16) to create a water film between the element and the inside of the jet housing. This reduces frictional wear and provides an improved swirl effect.</p> |
