Oil deflector
AssigneeGM Global Technology Operations LLC
InventorMalay Maniar
Life of this patent
Estimating the term…
Abstract
An oil deflector includes a segment array extending radially from a sleeve portion defining a longitudinal axis and configured for mounting on a shaft. The segment array includes a plurality of segments arranged circumferentially relative to the longitudinal axis and defines at least one oil diverting feature configured to create a pressure differential proximate the segment array or across a surface of the segment array during rotation of the oil deflector about the longitudinal axis. The segment array may define an oil diverting feature configured as a radially tapered peripheral surface, an axially inclined annular surface, at least one slot inclined relative to an annular surface of the array, and/or a combination of these configured to divert oil axially and/or radially from the oil deflector during rotation by the shaft in use.
Claims20
An oil deflector comprising:
- a sleeve portion defining a longitudinal axis;
- and
- a segment array extending radially from the sleeve portion;
- the segment array including a plurality of segments distributed circumferentially relative to the longitudinal axis;
- wherein each segment of the plurality of segments defines a peripheral face, a leading end, and a trailing end;
- wherein the peripheral face is defined by a radius which increases from the leading end of the segment to the trailing end of the segment;
- and
- wherein the segment array defines an oil diverting feature configured to create a pressure differential proximate the segment array during rotation of the oil deflector about the longitudinal axis.
An oil sealing system for a turbocharger including a turbocharger shaft, the oil sealing system comprising:
- an oil deflector including:
- a sleeve portion defining a longitudinal axis and configured to be rotatably mounted to the turbocharger shaft;
- a segment array extending radially from the sleeve portion;
- the segment array including:
- a plurality of segments circumferentially distributed relative to the longitudinal axis;
- an offset face extending radially between each respective segment of the plurality of segments and another segment of the plurality of segments;
- wherein said another segment is circumferentially adjacent the respective segment;
- wherein the offset face and the longitudinal axis are co-planar;
- and
- wherein:
- each respective segment of the plurality of segments extends radially from the sleeve portion and defines a peripheral face;
- and
- the peripheral face of each respective segment is radially tapered and configured to divert oil radially from the peripheral face during rotation of the oil deflector by the turbocharger shaft.
An oil sealing system for a turbocharger including a turbocharger shaft, the oil sealing system comprising:
- an oil deflector including:
- a sleeve portion defining a longitudinal axis and configured to be rotatably mounted to the turbocharger shaft;
- a segment array extending radially from the sleeve portion;
- the segment array including:
- a plurality of segments circumferentially distributed relative to the longitudinal axis;
- each of the segments of the plurality of segments defining a first annular face and a second annular face;
- wherein the first annular face is axially offset from the second annular face relative to the longitudinal axis;
- wherein the first annular face includes a leading edge extending radially from the sleeve portion and a trailing edge extending radially from the sleeve portion;
- wherein the leading edge and the trailing edge are perpendicular to each other;
- a slot extending radially between each respective segment of the plurality of segments and another segment of the plurality of segments;
- wherein:
- the respective segment and the another segment are circumferentially adjacent segments which are separated by the slot;
- the slot is defined by the leading edge of the respective segment and the trailing edge of said another segment;
- and
- the slot extends from the first annular face to the second annular face and is configured to divert oil axially during rotation of the oil deflector by the turbocharger shaft.
Dependencies are inferred from the claim text.