| 摘要 |
The invention relates to a sprayer ( 1 ), comprising a pneumatic turbine ( 5 ), capable of rotating a bowl ( 6 ), the turbine being connected to a pressurized gas supply line ( 11 ), for driving said turbine and to a drive gas exhaust line ( 12 ). The exhaust line ( 12 ) is equipped with an inner sleeve ( 13 ) which defines the exhaust gas flow volume (V 13 ), an annular gap (E) with a non-zero thickness being provided between the outer surface of the sleeve ( 13 ) and the inner surface of the line ( 12 ). The structure is compatible with a temperature gradient between the optionally low-temperature exhaust gas flow volume (V 13 ) and the material ( 2 ) which forms the exhaust line ( 12 ), the risk of condensation being thus limited.
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