DROP IRRIGATION APPARATUS Russian patent published in 2006 - IPC A01G25/02 

FIELD: agricultural engineering, in particular, equipment for drop irrigation of perennial farm crops.

SUBSTANCE: apparatus has casing with inlet opening, air opening, and water discharge opening. Apparatus is equipped with water lock valve and float. Casing is divided into working and adjustable chambers arranged one above another. Apparatus is further provided with pressure chamber having inlet opening and air opening, float and water lock valve. Water lock valve is made in the form of ring with ribs arranged in concentric circles, central water discharge openings and membrane above ribs. Working chamber disposed between pressure chamber and adjustable chamber is provided with float and water lock valve formed as ring with ribs arranged in concentric circles, central water discharge opening and membrane above ribs. Adjustable chamber defined by water pressure valve of working chamber is closed with threaded cover within casing. Threaded cover is equipped in its bottom part with helical water outlet having water discharge holes at its peripheral part.

EFFECT: enhanced reliability in operation and improved quality of irrigation.

7 cl, 1 dwg