NITROGEN GENERATOR OF ARTIFICIAL ICE CRYSTALS Russian patent published in 2013 - IPC A01G15/00 

FIELD: agriculture.

SUBSTANCE: invention relates to the field of technical means for generating ice crystals and can be used to control the meteorological processes. The nitrogen generator of artificial ice crystals comprises a Dewar vessel with liquid nitrogen placed in the airplane. The vessel comprises a cover and clips for its mounting, the delivery line, the drain branch pipe and the device for forced supply of liquid nitrogen through the delivery line to the sprayer. One end of the line is equipped with a sprayer and put overboard of the airplane, and the other end through the cap is inserted into the Dewar vessel. The device for forced supply of liquid nitrogen to the sprayer also contains an electric actuator placed on the cover with the lowered rotating shaft. The rotating shaft is enclosed in a cup which with its open end is attached to the electric actuator, and with the closed end is immersed in liquid nitrogen. At the bottom of the cup there is an opening along the axis through which the end of a rotating shaft is passed outwards. At the bottom of the cup a centrifugal pump is placed. The pump casing with pumping and suction branch pipes is attached to the end of the cup, and the rotor wheel with blades is attached to the end of the rotating shaft protruding from the cup. The open end of the pumping branch pipe is connected to the delivery line with a sprayer.

EFFECT: simplified design of the device is provided, as well as improvement of reliability and safety of its operation.

3 cl, 2 dwg