Device for controlling a liquid flow
OwnerGertjan Roelof Bouwkampinventor
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Abstract
A device for controlling a liquid flow by a gas pressure. The device includes a pressure chamber, in which an overpressure, an underpressure or atmospheric pressure may prevail. The pressure in the pressure chamber can be used for allowing the liquid flow to pass or for stopping the liquid flow. Furthermore the liquid flow can be limited to a predetermined rate of flow. The device may interalia be used in sewage systems, hydraulic engineering works and irrigation works.
Claims9
A device for controlling a liquid flow passing through the device, which device forms a system of communicating vessels comprising a pressure chamber with a flow threshold, an outer vessel and an inner vessel placed upstream from the pressure chamber and an inner vessel and an outer vessel placed downstream from the pressure chamber, whereby during operation the liquid flow can be controlled by means of the pressure of a gas present in the pressure chamber, and gas for creating a pressure in the pressure chamber being transported into the pressure chamber due to turbulence created in the liquid flow when entering the device, said gas being transported with the liquid into the pressure chamber from the outer upstream vessel to the inner upstream vessel and first means being present for allowing the entry of gas into the pressure chamber.
Dependencies are inferred from the claim text.