Electrically driven pump and domestic appliance having the pump
First Claim
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1. A pump, comprising:
- a pumping chamber having an inlet and an outlet (14);
a stationary shaft;
an impeller disposed in said pumping chamber and rotatable about said stationary shaft;
a rotor of an electrical machine, said rotor connected to said impeller, disposed in said pumping chamber and rotatable about said stationary shaft, said rotor having a central through-passage through which a flow path from said inlet to said outlet runs; and
at least one annular bearing mounting said impeller on said stationary shaft and rotating with said impeller, said at least one annular bearing having an inner surface with at least one axial channel.
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Abstract
A pump includes a pump chamber in which an impeller and a rotor of an electric machine connected to the impeller, are disposed. A flow path runs from an inlet to an outlet of the pump chamber through a central passage of the rotor.
35 Citations
8 Claims
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1. A pump, comprising:
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a pumping chamber having an inlet and an outlet (14);
a stationary shaft;
an impeller disposed in said pumping chamber and rotatable about said stationary shaft;
a rotor of an electrical machine, said rotor connected to said impeller, disposed in said pumping chamber and rotatable about said stationary shaft, said rotor having a central through-passage through which a flow path from said inlet to said outlet runs; and
at least one annular bearing mounting said impeller on said stationary shaft and rotating with said impeller, said at least one annular bearing having an inner surface with at least one axial channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification