| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a nozzle which is capable of forming a jet stream having an excellent direct advancing property and flowing along the bottom of a tank storing a liquid without whirling up foreign matter deposited on the bottom of the tank. <P>SOLUTION: The nozzle 1 forms the jet stream in the tank 9 storing the liquid and includes a first jetting port 5a for forming a first jet stream Fa to be obliquely jetted to the bottom of the tank 9 and second jetting ports 5b, 5c for forming second jet streams Fb, Fc in the direction to be an angle shallower than an angle at which the first jet stream is formed, with respect to the bottom of the tank 9. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
