| 摘要 |
<p>PCT No. PCT/GB91/01083 Sec. 371 Date Dec. 24, 1992 Sec. 102(e) Date Dec. 24, 1992 PCT Filed Jul. 3, 1991 PCT Pub. No. WO92/00811 PCT Pub. Date Jan. 23, 1992.A high-pressure water spray gun is disclosed for use, for example, for fire-fighting. The spray gun has a cylindrical body for connection to a supply hose and a spray lead rotatable in the body by water issuing through pairs of jet nozzles around the barrel of the spray head. In each pair of nozzles, the axes of the nozzles are convergent and being closest to each other in a mixing region at, or just outside of, the outer surface of the barrel. At least one nozzle has a non-radial axis. The spray head may be normally housed in the body, being moved to an exposed working position by water pressure against a spring.</p> |
