| 摘要 |
PROBLEM TO BE SOLVED: To provide fluid equipment and an orifice hole size changing method capable of easily forming an orifice hole having an accurate inside diameter and capable of easily changing orifice hole size. SOLUTION: A female screw 634 is formed in two inner holes 632 and 632, which are respectively communicated with a connection tube 83 through a crossing inner hole 633 bored in a lower board 63 of a device main body 6 at one end and opened in a recessed part 631 at the other end. An orifice member 4, which is communicated with a hexagonal hole provided with a hexagonal rod spanner 16 inside thereof and formed with a through hole 412 having an inside diameter corresponding to the orifice hole, is screwed to the female screw 634 for installation. Finally, a cover member 15 is screwed to the other end opening of each of the inner holes for sealing. Air supplied from the connecting tube is blown into the oil, which is stored in the recessed part, from a tip opening 413 through the through hole 412 (orifice hole). Orifice members for exchange, which are respectively formed with a through hole having a different inside diameter, are prepared, and exchanged with the installed orifice member to change orifice hole size. COPYRIGHT: (C)2004,JPO
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