| 摘要 |
The invention provides a handheld rotary accessory ( 10 ) which includes an accessory body ( 12 ), and a water driven turbine ( 16 ) mounted on the accessory body ( 12 ); the water driven turbine ( 16 ) having a turbine wheel ( 20 ) mounted for rotation about a turbine wheel rotational axis ( 22 ), and having a plurality of circumferentially spaced turbine wheel blades ( 46 ) each of which has a radially inner edge and a radially outer edge. The accessory ( 10 ) also includes a turbine feed water arrangement which includes a feed water inlet ( 18 ) which is connectable to a pressurised water supply and a nozzle ( 50 ) connected in flow communication with the feed water inlet ( 18 ), the nozzle ( 50 ) being positioned radially inwardly of the radially inner edges of the blades ( 46 ). The invention extends to a method of rotatably driving a utility accessory which forms part of a handheld rotary accessory.
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