Wind machine for protecting harvests against frost and heat and for controlling the distribution of chemicals used in agriculture

摘要

A wind machine for protecting harvests against frost and heat and for controlling the distribution of chemicals used in agriculture, of the type comprising a tower whose upper part may rotate about a vertical axis relative to the base 2 and to which there is fixed a casing 9 supporting a propeller 10 rotating about an axis which is slightly inclined towards the bottom and a set of nozzle sprayers 22, comprises a first motor 17 for driving the propeller and a second motor 8 for causing the upper part to rotate relative to the base, and is equipped with a means for controlling the speed. The nozzle sprayers may be of the water and air type fed by an air pump under high pressure and by a water pump 33 under low pressure situated at the base of the tower, by means of a double-sealed rotary distribution box 5, or of the type fed by water sent by a high-pressure pump. IMAGE