| 摘要 |
A spray nozzle for high pressure water applications such as automatic car washes is needed which is capable of dispersing water over a large surface area, which is free from pulsation, and delivers spray with a suitable washing action. These requirements are met by a rotating spray nozzle assembly (10) having a hollow distribution arm (12) radially attached to a hollow rotating shaft (14). Attached to distribution arm (12) are a plurality of spray nozzles (13). Pressurized water from water chamber (16) sequentially activates, via inlets, bevelled end pistons (24) which in turn drive cylindrical wedge cam (31). Cylindrical wedge cam (31) circumscribes and is attached to hollow rotating shaft (14). The hollow rotating shaft (14) derives its rotation from the action of bevelled end pistons (24). Hollow rotating shaft (14) includes an interior shaft partition (38), venturi (28), first inlet (23), second inlet (25), and third inlet (27), which interact with a plurality of passages to determine the flow path and rotation of spray nozzle assembly (10). |
