Sickleless internal gear wheel pump with sealing elements inserted into the tooth tips
AssigneeVoith Turbo GmbH & Co. KG
InventorsFranz Arbogast, Peter Peiz
Life of this patent
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Abstract
A sickleless gear wheel pump includes an internally geared hollow wheel including a plurality of tooth tips. A pinion includes a plurality of tooth tips and meshes with the hollow wheel. The hollow wheel and pinion are rotatably disposed in a housing. The housing has a suction connection and a pressure connection. The hollow wheel has openings for a medium to be pumped therethrough. Each tooth tip of the plurality of tooth tips of the hollow wheel has a profile groove in which there is present a sealing element that is radially moveable during rotation of the hollow wheel and pinion and which is in sliding seal-off engagement with a respective tooth tip of the plurality of tooth tips of the pinion. Each sealing element is metallic.
Claims2
A sickleless gear wheel pump, comprising:
- an internally geared hollow wheel including a plurality of tooth tips;
- a pinion including a plurality of tooth tips and meshing with the hollow wheel;
- the hollow wheel and pinion being rotatably disposed in a housing;
- the housing having a suction connection and a pressure connection;
- the hollow wheel having openings for a medium to be pumped therethrough;
- each tooth tip of the plurality of tooth tips of the hollow wheel having a profile groove, in which there is present a sealing element that is radially movable during rotation of the hollow wheel and pinion and which is in sliding seal-off engagement with a respective tooth tip of the plurality of tooth tips of the pinion;
- wherein each said sealing element is metallic.
Dependencies are inferred from the claim text.