Pressure compensator for an irrigation sprinkler

Details Pressure compensator for an irrigation sprinkler Pressure compensator for an irrigation sprinkler

1999-01-20

2000-11-14

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

239542, 239570, B05B 130

Patent

active

061457604

ABSTRACT:
This invention relates to a pressure compensator (11) for use with irrigation devices (8) where the pressure compensator (11) is used to control a flow of water. The compensator (11) comprises elastomeric disc (15), a substantially concave seating surface (13) which is covered by the disc (15), the seating surface (13) having a peripheral edge (22) against which the disc (15) locates, and at least one recess portion (26) on the periphery on the seating surface (13) that results in an aperture between the disc (15) and the seating surface (13) when no force is applied to the disc (15), and which provides flow control resulting from the edge of the disc (15) flexing into the recess (26) when force is applied to the disc (15). Significantly less force is required to flex the edge of the disc (15) into the recess (26) which results in control of fluid flow at much lower pressures by comparison known fluid control devices.

REFERENCES:
patent: 3777980 (1973-12-01), Allport
patent: 4502631 (1985-03-01), Christen
patent: 4724870 (1988-02-01), Molbae et al.

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