| 摘要 |
A high pressure adjustable nozzle utilizes a vented piston valve in cooperation with a low torque hand adjusting cam element and control pin to easily open and close the nozzle orifice. Fluidic line pressure is applied to the fore and aft section of the piston valve to create forces which can adjustably regulate the flow of the nozzle from an infinitely variable full open valve position to a full closed valve position.
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