Oil supply conduit through stator lamination stack for electrified turbocharger
AssigneeBorgWarner Inc.
InventorBrock Fraser
Life of this patent
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Abstract
A number of variations may include a product comprising: an electrified turbocharger comprising: an electric motor surrounding a portion of a shaft constructed and arranged to selectively drive the shaft, wherein the electric motor further comprises a stator comprising a lamination stack; a housing surrounding the electric motor, wherein the housing includes a plurality of channels constructed and arranged to lubricate a first bearing; and wherein the lamination stack is constructed and arranged to include at least one conduit to pass oil through the electric motor to a second bearing.
Claims18
A product comprising:
- an electrified turbocharger comprising:
- a turbocharger shaft;
- an electric motor surrounding a portion of the turbocharger shaft constructed and arranged to selectively drive the turbocharger shaft, wherein the electric motor further comprises a stator comprising a lamination stack;
- a housing surrounding the electric motor, wherein the housing includes a plurality of channels constructed and arranged to lubricate a first turbocharger shaft bearing;
- and
- wherein the lamination stack is constructed and arranged to include at least one conduit to pass oil through the electric motor to a second turbocharger shaft bearing.
A method for a bearing lubrication system for an electric turbocharger comprising:
- providing a turbocharger shaft;
- providing an electric motor comprising a stator and a housing;
- providing the stator with a first oil conduit and a second oil conduit extending through the stator;
- feeding oil to one end of a turbocharger housing so that oil is supplied to a first bearing and through the first oil conduit and the second oil conduit so that oil is supplied to a second bearing, wherein the turbocharger shaft extends through the stator and the stator housing.
Dependencies are inferred from the claim text.