Liquid seal pump of the helical screw type
AssigneeJets AS
InventorOlav Hofseth
Life of this patent
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Abstract
Liquid seal pump of the helical screw type including a pump housing (3) with an inlet (2), an outlet (6), and within the housing provided a helical screw rotor (7) driven by means of a motor (8). The outlet (6) of the pump (3) is provided with a sealing liquid tank (4) for supplying of liquid to the pump and thereby maintaining the liquid seal under idle running of the pump.
Claims6
Liquid seal pump of the helical screw type, for use in vacuum drainage systems and with long time idle running of the pump, including a pump housing (3) with an inlet (2), outlet (6) and within the housing provided helical screw rotor (7) driven by means of a motor (8) wherein the outlet (6) of the pump (3) is provided with a sealing liquid tank (4) for the supply of liquid to the pump and thereby maintaining the liquid seal under the idle running of the pump.
Dependencies are inferred from the claim text.