Pump and liquid supplying apparatus
First Claim
1. A pump comprising:
- a pump part including an impeller having a plurality of blades for sucking and discharging a liquid;
a pump case accommodating the pump part;
a rotor installed to the impeller to rotate the impeller;
a motor part accommodating a stator disposed around an outer periphery of the rotor to drive the rotor and a driving circuit for controlling the stator;
a partition member for isolating the motor part from the pump part to protect the motor part therefrom, a reservoir space disposed in the impeller;
an extra passage provided between the rotor and the partition member and connected to the reservoir space to introduce the liquid thereto from the blades; and
one or more reflux passages, formed at the impeller, for flowing the liquid in the reservoir space back to the blades.
2 Assignments
0 Petitions
Accused Products
Abstract
A pump includes a pump part provided with an impeller having a plurality of blades for sucking and discharging a liquid; a pump case accommodating the pump part; a rotor installed to the impeller to rotate the impeller; a motor part accommodating a stator disposed around an outer periphery of the rotor to drive the rotor and a driving circuit for controlling the stator; a partition member for isolating the motor part from the pump part to protect the motor part therefrom. The pump further includes a reservoir space disposed in the impeller; an extra passage provided between the rotor and the partition member and connected to the reservoir space to introduce the liquid thereto from the blades; and one or more reflux passages, formed at the impeller, for flowing the liquid in the reservoir space back to the blades.
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Citations
8 Claims
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1. A pump comprising:
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a pump part including an impeller having a plurality of blades for sucking and discharging a liquid; a pump case accommodating the pump part; a rotor installed to the impeller to rotate the impeller; a motor part accommodating a stator disposed around an outer periphery of the rotor to drive the rotor and a driving circuit for controlling the stator; a partition member for isolating the motor part from the pump part to protect the motor part therefrom, a reservoir space disposed in the impeller;
an extra passage provided between the rotor and the partition member and connected to the reservoir space to introduce the liquid thereto from the blades; andone or more reflux passages, formed at the impeller, for flowing the liquid in the reservoir space back to the blades. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification