Electric motor oil pump with integrated bearing support
AssigneeSchaeffler Technologies AG & Co. KG
InventorsNoah Kee, Matthew Payne
Life of this patent
Estimating the term…
Abstract
A bearing carrier may include a hub defining a bearing surface. A rotating assembly may include the bearing carrier and a bearing coupled to the bearing surface. The bearing carrier may also include an annular lip extending from a flange of the hub. The rotating assembly may also include a pump coupler coupled to the annular lip of the bearing carrier. A generator may include the rotating assembly and an oil-pump coupled to the oil-pump coupler. The rotating assembly may also include an electromagnetic rotor. The generator may include an electromagnetic stator which generates electricity in response to a magnetic field induced by the electromagnetic rotor of the rotating assembly.
Claims20
A bearing carrier comprising:
- a rim;
- a hub, wherein the hub is disposed radially inwards of and axially extends from the rim, wherein an inner radius of the hub defines a bearing surface, wherein the bearing surface is coincident to a central axis of the bearing carrier;
- a flange, wherein the flange extends from the hub, wherein the hub is axially disposed between the rim and the flange, wherein the flange defines a centered through hole, wherein the centered through hole is coincident with the central axis;
- an external annular lip, wherein the external annular lip axially extends from the rim away from the hub and the flange, wherein the external annular lip is disposed radially outwards of the hub and the flange, wherein the external annular lip is coincident with the central axis;
- and
- an internal annular lip, wherein the internal annular lip axially extends from the flange towards the rim, wherein the internal annular lip is disposed radially inwards of the hub, wherein the internal annular lip is disposed radially outwards of the centered through hole, wherein the internal annular lip is coincident with the central axis.
A rotating assembly comprising:
- a bearing carrier comprising:
- a rim;
- a hub, wherein the hub is disposed radially inwards of and axially extends from the rim, wherein an inner radius of the hub defines a bearing surface, wherein the bearing surface is coincident to a central axis of the bearing carrier;
- a flange, wherein the flange extends from the hub, wherein the hub is axially disposed between the rim and the flange, wherein the flange defines a centered through hole, wherein the centered through hole is coincident with the central axis;
- an external annular lip, wherein the external annular lip axially extends from the rim away from the hub and the flange, wherein the external annular lip is disposed radially outwards of the hub and the flange, wherein the external annular lip is coincident with the central axis;
- and
- an internal annular lip, wherein the internal annular lip axially extends from the flange towards the rim, wherein the internal annular lip is disposed radially inwards of the hub, wherein the internal annular lip is disposed radially outwards of the centered through hole, wherein the internal annular lip is coincident with the central axis;
- a bearing, wherein the bearing is disposed radially inwards of and coupled to the bearing surface;
- a resolver rotor, wherein the resolver rotor is disposed radially outwards of and coupled to the external annular lip;
- a pump coupler, wherein the pump coupler is disposed radially inwards of and coupled to the internal annular lip;
- a shaft;
- an electromagnetic rotor;
- and
- a rotor carrier, wherein the rim and the shaft are coupled to opposing axial ends of the rotor carrier, wherein the electromagnetic rotor is disposed radially outwards of and coupled to the rotor carrier between the rim and the shaft.
An electric motor comprising:
- a rotating assembly comprising:
- a bearing carrier comprising:
- a rim;
- a hub, wherein the hub is disposed radially inwards of and axially extends from the rim, wherein an inner radius of the hub defines a bearing surface, wherein the bearing surface is coincident to a central axis of the bearing carrier;
- a flange, wherein the flange extends from the hub, wherein the hub is axially disposed between the rim and the flange, wherein the flange defines a centered through hole, wherein the centered through hole is coincident with the central axis;
- an external annular lip, wherein the external annular lip axially extends from the rim away from the hub and the flange, wherein the external annular lip is disposed radially outwards of the hub and the flange, wherein the external annular lip is coincident with the central axis;
- and
- an internal annular lip, wherein the internal annular lip axially extends from the flange towards the rim, wherein the internal annular lip is disposed radially inwards of the hub, wherein the internal annular lip is disposed radially outwards of the centered through hole, wherein the internal annular lip is coincident with the central axis;
- a bearing, wherein the bearing is disposed radially inwards of and coupled to the bearing surface;
- a resolver rotor, wherein the resolver rotor is disposed radially outwards of and coupled to the external annular lip;
- a pump coupler, wherein the pump coupler is disposed radially inwards of and coupled to the internal annular lip;
- a shaft;
- an electromagnetic rotor;
- and
- a rotor carrier, wherein the rim and the shaft are coupled to opposing axial ends of the rotor carrier, wherein the electromagnetic rotor is disposed radially outwards of and coupled to the rotor carrier between the rim and the shaft;
- a housing;
- an oil pump comprising an oil pump shaft and an oil pump stator, wherein the oil pump shaft is coupled to the bearing, wherein the rotating assembly is configured to rotate relative to the oil pump stator, wherein the oil pump stator is coupled to the pump coupler and the housing, wherein the oil pump shaft is configured to rotate with the rotating assembly;
- a resolver stator, wherein the resolver stator is coupled to the housing, wherein the resolver stator is disposed radially outwards of and axially aligned with the resolver rotor;
- and
- an electromagnetic stator, wherein the electromagnetic stator is disposed radially outwards of and axially aligned with the electromagnetic rotor.
Dependencies are inferred from the claim text.