| 摘要 |
The invention concerns an assembly (1) comprising: a unit spraying water under pressure, comprising a high pressure pump (12); a unit spraying a granular material under pressure, comprising a motor (10) and an air compressor (11) driven by said motor (10); a clutch (13) whereof one plate (13a) is blocked on the motor (10) shaft and the other plate (13b) is connected to the pump (12), so as to actuate said pump; and means capable of being switched between a position for engaging the clutch (13) plates (13a, 13b) and, simultaneously, blocking the motor (10) gas control in a position wherein the motor (10) operates at maximum rate for actuating the pump (12) without damaging it, and a reverse position, for disengaging said plates and releasing the gas control.
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