Vehicle differential and welding
AssigneeGM Global Technology Operations LLC
InventorsCheonjae Bahk, Peng Shen, Wenying Yang, Kaushik Kalita, Pankaj Kumar Jha, Lala Ram Patel
Life of this patent
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Abstract
A differential for a vehicle includes: a carrier: having a radially outer surface; and being made of a first material having a first ductility; a ring gear: having a radially inner surface that abuts the radially outer surface of the carrier; and being made of a second material having a second ductility, where at least one of (a) the carrier and (b) the ring gear includes an annular groove forming a circle in a lateral surface adjacent to at least one of (a) the radially outer surface of the carrier and (b) the radially inner surface of the ring gear.
Claims20
A differential for a vehicle, comprising:
- a carrier:
- having a radially outer surface;
- and
- being made of a first material having a first ductility;
- a ring gear:
- having a radially inner surface that abuts the radially outer surface of the carrier;
- and
- being made of a second material having a second ductility,
- wherein at least one of (a) the carrier and (b) the ring gear includes an annular groove forming a circle in a lateral surface adjacent to at least one of (a) the radially outer surface of the carrier and (b) the radially inner surface of the ring gear,
- wherein at least one corner of the annular groove is rounded, and
- wherein the at least one corner has a radius of approximately 1 millimeter.
A differential for a vehicle, comprising:
- a carrier:
- having a radially outer surface;
- and
- being made of a first material having a first ductility;
- a ring gear:
- having a radially inner surface that abuts the radially outer surface of the carrier;
- and
- being made of a second material having a second ductility,
- wherein at least one of (a) the carrier and (b) the ring gear includes an annular groove forming a circle in a lateral surface adjacent to at least one of (a) the radially outer surface of the carrier and (b) the radially inner surface of the ring gear,
- wherein the ring gear and the carrier are welded in a circle where the radially inner surface of the ring gear meets the radially outer surface of the carrier,
- wherein a distance between a first center of the weld and a second center of the annular groove in a direction parallel to the lateral surface is greater than a depth of the weld, and
- wherein the distance is approximately 5 millimeters.
A differential for a vehicle, comprising:
- a carrier:
- having a radially outer surface;
- and
- being made of a first material having a first ductility;
- a ring gear:
- having a radially inner surface that abuts the radially outer surface of the carrier;
- and
- being made of a second material having a second ductility,
- wherein at least one of (a) the carrier and (b) the ring gear includes an annular groove forming a circle in a lateral surface adjacent to at least one of (a) the radially outer surface of the carrier and (b) the radially inner surface of the ring gear,
- wherein a width of the annular groove in a direction parallel to the lateral surface is approximately 4 millimeters.
Dependencies are inferred from the claim text.