| 摘要 |
PURPOSE:To shorten the distance between orifices and consequently obtain a favorable mixing state by a method wherein at least one orifice is positioned in a throughhole under the state that a bar-like valve body to open and close respective orifices is located at its rear dead center so as to bring the respective orifices in the open state. CONSTITUTION:Both liquids A and B are circulated by means of circulating pumps. After that, orifices 42 and 52 of respective nozzles 41 and 51 are opened by shifting a first bar-like valve body 52 to its rear dead center. At the same time, circulating passages 46 and 56 for liquid A and B are closed by shifting a second and a third bar-like valve body 47 and 57 to their bottom dead centers. Further, by shifting a shifting rod 54 downward, a nozzle 51 for liquid B is projected in a first throughhole 23. Under the state just mentioned above, the liquid A and B are injected under high pressure from the respective orifices 42 and 52 so as to collide with each other just before the tip surface of the first bar-like valve body 25 in order to mix with each other. Thus, the distance between the orifice 42 for liquid A and the orifice 52 for liquid B becomes shorter, resulting in keeping the initial jetting velocities of the respective liquids and consequently facilitating mixing of both the liquids.
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