SELF-PRESSURE IRRIGATION SYSTEM Russian patent published in 1994 - IPC

FIELD: agricultural engineering. SUBSTANCE: irrigation system has water- distributing sumps 10 and 25 for two irrigation pipeline. Device for supply and control of water rate is made as two-position hydraulic switches of water flow. In middle sump 10 said device is made as curvilinear gate secured on vertical upright at different levels correspondingly displacement of distribution 2 and irrigation 6 and 7 pipelines. Inlet branch pipelines of the irrigation pipelines is installed in the sump at the same level relative to distribution pipeline 2. Vertical upright is provided with rotation handle with rotation fixing member made as a rod secured on the handle and radial recesses on a cover of the sump. The number of recesses are accorded with the number of positions of overlappings of openings of pipelines with curvilinear gates. The curvilinear gates are made in the form of sectors with angles of bell aliquot to 60 deg. EFFECT: enhanced efficiency. 2 cl, 20 dwg