Single-entry screw pump
AssigneeITT Bornemann GmbH
InventorDavid Johannes Blatt
Life of this patent
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Abstract
A single-entry screw pump with a housing which has an inlet and an outlet for a medium to be pumped, with two spindles which are rotatably mounted in the housing in slide bearings, the spindles each have a screw thread on their outer circumference between the slide bearings, the screw threads of the spindles engage with one another and convey the medium from the inlet to the outlet, the housing has a sleeve section in which the screw threads of the spindles are positioned, the sleeve section has a suction-side inlet opening and a pressure-side outlet opening, wherein the media flow from the inlet to the inlet opening is guided along the pressure-side slide bearing in a hydraulically equalising manner and from the outlet opening to the outlet along the suction-side slide bearing.
Claims20
A single-entry screw pump comprising:
- a housing comprising:
- an inlet;
- an outlet;
- and
- a sleeve section comprising an inlet opening and an outlet opening;
- and
- two or more spindles, wherein the two or more spindles are rotatably mounted in the housing between a first slide bearing and a second slide bearing, wherein the two or more spindles comprise screw threads on their outer circumference, wherein the screw threads are positioned within the sleeve section and engage with one another and convey a medium from the inlet to the outlet and along the first slide bearing and the second slide bearing to provide hydraulic equalization, wherein an end face of the first slide bearing is proximate to the inlet and an opposite end face of the first slide bearing is proximate to the outlet opening.
A single-entry screw pump comprising:
- a housing comprising:
- an inlet;
- an outlet;
- and
- a sleeve section comprising an inlet opening and an outlet opening;
- and
- two or more spindles, wherein the two or more spindles are rotatably mounted in the housing between a first slide bearing and a second slide bearing, wherein the two or more spindles comprise screw threads on their outer circumference, wherein the screw threads are positioned within the sleeve section and engage with one another and convey a medium from the inlet to the outlet and along the first slide bearing and the second slide bearing to provide hydraulic equalization, wherein an end face of the second slide bearing is proximate to the inlet opening and an opposite end face of the second slide bearing is proximate to the outlet.
Dependencies are inferred from the claim text.