Pump
AssigneeLG Innotek Co., Ltd.
InventorHyun Shik CHO
Life of this patent
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Abstract
A pump comprises: a motor housing; a stator disposed in the motor housing; a rotor disposed in the stator; a shaft coupled to the rotor; a pump housing coupled to the motor housing; an outer gear disposed in the pump housing; an inner gear disposed within the outer gear and coupled to the shaft; a bearing housing disposed between the rotor and pump housing; and first and second bearings disposed in the bearing housing, wherein the first and second bearings have different outer diameters, and the bearing housing is arranged to at least partially overlap the rotor in a direction perpendicular to the axial direction.
Claims21
-10. (canceled)
A pump comprising:
- a motor housing;
- a stator disposed in the motor housing;
- a rotor disposed in the stator;
- a shaft coupled to the rotor;
- a pump housing coupled to the motor housing;
- an outer gear disposed in the pump housing;
- an inner gear disposed within the outer gear and coupled to the shaft;
- a bearing housing disposed between the rotor and pump housing;
- and
- first and second bearings disposed in the bearing housing,
- wherein the first and second bearings have different outer diameters,
- wherein the bearing housing is arranged to at least partially overlap the rotor in a direction perpendicular to an axial direction of the shaft,
- wherein the bearing housing includes a first region in which the first bearing is disposed on an inner side, and a second region in which the second bearing is disposed on the inner side, and
- wherein a diameter of the first region is different from a diameter of the second region.
A pump comprising:
- a motor housing;
- a stator disposed in the motor housing;
- a rotor disposed in the stator;
- a shaft coupled to the rotor;
- a pump housing coupled to the motor housing;
- an outer gear disposed in the pump housing;
- an inner gear disposed within the outer gear and coupled to the shaft;
- a bearing housing disposed between the rotor and pump housing;
- and
- first and second bearings disposed in the bearing housing,
- wherein the first and second bearings have different outer diameters,
- wherein the bearing housing includes a first space where the first bearing is placed and a second space where the second bearing is placed, and
- wherein an inner diameter of the first space and an inner diameter of the second space are different from each other.
Dependencies are inferred from the claim text.