| 摘要 |
<p>A flow path (2) for the pressure gas which is to be connected to a pressure gas feeder is formed almost rectilinearly, a liquid reservoir chamber (19) to be connected to a pressure liquid feeder is provided in the flow path (2) for the pressure gas. The sectional area of the flow path (2) for the pressure fluid is gradually reduced to form an accelerating portion, an injection port (23) for a liquid injection nozzle (18) communicating with the liquid reservoir chamber (19) is provided in the acceleration portion and a gas injection port (29) is formed on the outside to enclose the injection port (23) of the liquid injection nozzle (18). A powder and granular material may be mixed into the pressure gas or the pressure liquid, or a detergent may be added into the pressure liquid. <IMAGE></p> |
