| 摘要 |
PURPOSE:To spray a fluid uniformly along the axial direction of a tubular body by dispersing the fluid, sprayed from an opening of the tubular body, in the axial direction in an expansion chamber, in a fluid injection system for preventing the scattering of cutting oil and chips to a machine tool. CONSTITUTION:When a fluid supply source is operated and air is fed into a tubular body 10, this air is jetted into an expansion chamber 31 constituted in space between a side wall 10b and a surrounding body 20. This air is con verged in the expansion chamber 31 with plural pieces of nozzles 21, after passing through a throttle passage 30. The air fed to the inside of the expansion chamber 31 is regulated of its flow as in arrow A, B, C directions by the throt tle passage 30, namely, dispersed in the axial direction of the tubular body 10. Then, this air is sprayed to the outside via a discharge port 40b of a funnel means 40. When a coolant supply pump connected to a coolant supply pipe 50 is operated, a coolant is discharged from plural discharge port 51 to an interval between a taper part 40b of this funnel means 40 and the surrounding body 20, thus the coolant is sprayed outside via a discharge port 40c. |
