DRIPPER Russian patent published in 2006 - IPC A01G27/02 

FIELD: agriculture; drop irrigation.

SUBSTANCE: proposed dripper has housing with inlet and outlet. Spherical protection chamber is made on inner surface of inlet, outlet hole arranged coaxially relative to chamber, and channels. Channels are made in form of de Laval nozzles cut along axis whose diverging parts pint to spherical protection chamber. Diaphragm provided with holes is installed for displacement over spherical protection chamber, outlet hole and channels. Dripper has upper threaded cover, float, circular chamber, additional diaphragm and lower threaded cover. Upper threaded cover is provided with inlet hole. Inner space of upper threaded cover is made conical float in form of hollow ball is freely fitted over diaphragm. Circular chamber is made concentrically to outlet hole and spherical protection chamber on bottom part of housing inlet. Circular chamber communicates with spherical protection chamber by converging parts of channels made in form of de Laval nozzles cut along axis. Main and additional diaphragms are of equal size and identical design. Holes in each diaphragm are made with displacement towards circular periphery edge. Inlet hole in upper threaded cover, outlet hole of housing and drain hole in lower threaded cover are coaxial. Replaceable diffuser is fitted in drain hole of lower threaded cover. Widened part diffuser is pointed towards additional diaphragm. Said widened part of diffuser has ring edge interrupted by radially orientated cuts. Depth of cuts and height of diffuser are at ratio of 1:(3-8). Lower cover is furnished with litter trap under additional diaphragm. It is arranged at housing outlet and is installed for displacement. Ring edge of diffuser is mated with additional diaphragm from rear side.

EFFECT: provision of uniform rate of watering and reliability of drop irrigation.

7 cl, 1 dwg