| 摘要 |
A device comprising fluid receiving means (40) for receiving the delivered fluid at a determinable flow rate from a pump, spray tip means (50) in fluid communication with the fluid receiving means (40) for receiving the delivered fluid at a predeterminable flow rate from a pump, spray tip means (50) in fluid communication with said fluid receiving means (40) which comprises a hollow body (48) having a fluid passage (90) therethrough, valve means (86, 110, 112) for selectively opening and closing said fluid passage (90) and for establishing a variable area orifice (88) therein, piston means (72) reciprocatively mounted within said body (48) and having at least one control orifice (94) therein for moving said valve means and for modulating the orifice area (88) to regulate the fluid pressure within said passage (90) and for regulating the velocity of the fluid flowing from said variable area (88) orifice independent of the quantity of flow therethrough.
|
