Liquid ring pump having a sheet metal valve plate
AssigneeSihi GmbH & Co. KG
InventorsKlaus Domagalla, Siegfried Auschrat
Life of this patent
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Abstract
Liquid-ring gas pump with a working chamber in which an impeller (6) rotates and which is bounded axially by a control plate (7) past which the impeller (6) moves with a small clearance and which has at least one intake and/or discharge opening (21, 22, 23) and is composed of rolled sheet. According to the invention, the edges (26) of the intake and discharge openings are at least in part bent over towards the side facing away from the impeller (6) and are rounded on the side facing the impeller and raised on the side facing away from it.
Claims14
Liquid-ring gas pump with a working chamber in which an impeller (6) rotates about an axis and is bounded at one axial end by a control plate (7) past which the impeller (6) moves with a small clearance, said control plate having at least one intake and discharge opening (21, 22, 23) and being composed of a rolled sheet material, characterized in that the control plate has a generally planar body with intake and discharge openings having peripheral edges at least in part bent out of the plane of said body to provide raised portions extending away from the impeller (6) and rounded portions confronting the working chamber.
Dependencies are inferred from the claim text.