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    • 2. 发明专利
    • LIQUID SPRAYING NOZZLE
    • JPS60133913A
    • 1985-07-17
    • JP24085883
    • 1983-12-22
    • NIPPON STEEL CORPYAMADA IND
    • MAEDA TADAHIKOTAKEDA NAOJIICHIMARU TSUNEICHI
    • B05B1/30B05B1/32B05B12/00B21B45/02B21B45/08
    • PURPOSE:To save the consumption quantity of a fluid to be sprayed and the power cost for driving a feed pump by automatically spraying the fluid and stopping the spraying by changing the pressure of the fluid to be sprayed in a nozzle. CONSTITUTION:When a fluid for spraying, pressurized to a desired spraying pressure, is supplied to a liquid inflowing port 1, it enters a gathering port 20 through a pressurizing chamber 10 to press the stepped surface 17 of a piston 4 and the frontened 3a surface of a poppet 3. The whole body of a piston valve 5 is then moved to the port 1 side against a pressing force of the piston 4 of a spring mechanism 8 to separate the front end surface 3a from a seat ring 22, and the inlet of a liquid spraying port 2 is released to spray the liquid to a body to be sprayed. When the supply of liquid is stopped or the liquid is supplied by making its pressure lower than a desired spraying pressure, the valve 5 is moved to the port 2 side by the pressing force of mechanism 8. The spraying of the fluid is stopped by press attaching the front end 3 surface 3a to the ring 22 and closing the inlet of spraying port 2.