| 摘要 |
A liquid ejection device for a pressure-cleaning apparatus, comprising a housing with means for receiving a liquid supply tube, a tubular body having a multiple of axially orientated flow channels, a first end inserted in concentric connecting means in the housing for connecting the tubular body, and a second end with an ejection nozzle, and means for regulation of the pressure of the liquid spray ejected through the tubular body, wherein said regulation means is provided in the housing upstream of the connecting means and includes a valve member having a threaded portion by which it is rotatably mounted, and a flow passage for feeding one or more of the flow channels of the tubular body with pressurised liquid. By the invention, a liquid ejection device is provided with a pressure regulation that may be adjusted to any pressure between a minimum and a maximum pressure due to the threaded mounting of the valve member.
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