Pressure compensating drip irrigation hose

Details Pressure compensating drip irrigation hose Pressure compensating drip irrigation hose

A - Human Necessities

01

G

A01G 25/02 (2006.01) B05B 1/30 (2006.01) B05B 1/34 (2006.01) B05B 15/00 (2006.01)

Patent

CA 2473509

A pressure compensated drip irrigation hose (20) includes a hose having a wall (21) with an inner surface (21 a). A continuous elastomeric strip member (30) is connected to the inner surface (21a). The continuous elastomeric strip member (30) and inner surface (21 a) form a plurality of emitters. The emitters have an inlet section (40), a pressure reducing section (60) which is downstream from the inlet section (40). A pressure responsive section (70) is downstream from the pressure reducing section (60) and the outlet section (80) is downstream from the pressure responsive section (70). The continuous elastomeric strip member (30) is constructed from a material softer than the wall (21).

L'invention concerne un tuyau (20) d'irrigation goutte à goutte à compensation de pression, composé d'un tuyau doté une paroi (21) comportant une surface intérieure (21a). Un élément (30) formé d'une bande élastomère continue est fixé sur cette surface intérieure (21a). Cette bande (30) élastomère continue et la surface intérieure (21a) forment une pluralité de diffuseurs. Ces diffuseurs comprennent une section (40) d'entrée, et une section (60) de réduction de pression située en aval de la section (40) d'entrée. Une section (70) réagissant à la pression est placée en aval de la section (60) de réduction de pression, et la section (80) de sortie est située en aval de cette section (70) réagissant à la pression. La bande (30) élastomère continue est fabriquée à partir d'un matériau plus souple que la paroi (21).

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