| 摘要 |
Fuel under pressure is conducted through restricted passages into the piston chamber of a nozzle body having a discharge orifice through which an axially movable valve projects. Pressurization of the piston chamber retracts the valve against a continuous closing bias to establish and control a discharge spray pattern. A signal pressure developed within the spray pattern is sensed at the projecting end of the valve to regulate its orifice opening position.
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