| 摘要 |
<p>The spray gun for cleaning comprises a conduit (4) for supply of alkaline soln., connected to a nozzle tube (6) through whic water flows at any pressure. In front of the nozzle outlet (2) is mounted a switchable injector member (3). The injector member may be surrounded by a channel (3a) from which holes (3b, 3c) lead into the injector member, and a baffle member (3d) may be mounted in the injector member. The pipe for supply of concentrated alkaline soln. may lead directly into the injector member, or it may lead into the nozzle tube at (8) and leave it again at another point (9). The injector member is supplied with the alkaline soln. by suction, and its movable mounting allows cleaning either with water and alkaline soln. or with just water.</p> |
