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US 2024/0335773 A1Published application
Screen filter suction nozzle
AssigneeNetafim, Ltd.
InventorAMIT GILBOA
Life of this patent
Estimating the term…
Abstract
A suction nozzle for a screen filter has an inlet orifice at its distal side through which liquid is arranged to flow into the nozzle during a cleaning operation. The orifice has a longitudinal extension and a width of the orifice changes along its longitudinal extension.
Claims20
A screen filter having a filter axis (X), and comprising:
- an outer housing extending along the filter axis (X);
- a screen located in the outer housing and configured for removing dirt from liquid flowing through the outer housing, the screen being formed about the filter axis (X);
- and
- a cleaning assembly for cleaning the screen, the cleaning assembly comprising:
- one or more suction nozzles arranged for reciprocating movement back and forth along the filter axis (X) while simultaneously rotating about said filter axis (X), each suction nozzle comprising an internal passageway terminating in an orifice through which the suction nozzle opens out towards the screen;
- wherein:
- each orifice has a longitudinal extension (L) extending parallel to the filter axis (X), a radially directed central nozzle axis (Z) perpendicular to the longitudinal extension (L);
- and
- a width (W) of the orifice changes along its longitudinal extension (L).
6 more elements
A screen filter suction nozzle comprising:
- an internal passageway terminating in an orifice, the orifice having a longitudinal extension (L), a width (W) measured along a width direction (Dw) perpendicular to the longitudinal extension (L), and a central nozzle axis (Z) perpendicular to both longitudinal extension (L) and the width direction (Dw);
- wherein:
- the width (W) of the orifice changes along its longitudinal extension (L);
- and
- in cross-sections of the suction nozzle taken perpendicular to the central nozzle axis (Z), the internal passageway has a constant cross-sectional shape matching that of the orifice, for at least 50% of the length of the suction nozzle.
2 more elements
Dependencies are inferred from the claim text.