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US 10,704,565 B2Granted
Side-channel pump
AssigneeSterling Industry Consult GmbH
InventorHeiner Kösters
Life of this patent
Estimating the term…
Abstract
A side-channel pump having a pump housing in which an operating chamber which is provided with a side channel and a motor are arranged, and having an impeller in the operating chamber which rotates with a shaft which is driven by the motor. A cooling circuit extends from the operating chamber to the motor and from the motor to a suction portion of the pump, wherein the cooling circuit is supplied from an operating chamber whose outlet side is connected to an outlet opening of the side-channel pump. Using the pump, gas can be drawn in without the pump becoming overheated.
Claims11
A side-channel pump comprising:
- a shaft rotatably supported in a pump housing and driven by a motor;
- a plurality of operating chambers arranged within the pump housing, each operating chamber provided with a side channel;
- an impeller provided within each of the plurality of operating chambers and rotatable therein, each impeller operatively connected to the shaft;
- and
- a cooling circuit extending from one of the plurality of operating chambers to the motor, and from the motor to a suction portion of the side-channel pump, wherein the one of the plurality of operating chambers is connected to an outlet opening of the side-channel pump,
- wherein the suction portion is arranged in the one of the plurality of operating chambers, and
- wherein the cooling circuit opens into the one of the plurality of operating chambers via a gap formed between the shaft and a portion of the pump housing surrounding the shaft, wherein the gap is defined by the shaft and the portion of the pump housing.
4 more elements
Dependencies are inferred from the claim text.