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US 2020/0300348 A1Published application
Differential overmolded ring gear
OwnerCarl A. KOERSCHNER, Adam TURNER +2inventors
InventorsCarl A. KOERSCHNER, Adam TURNER, Hosam Z. ABDU, Charles V. Rupert
Life of this patent
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Abstract
A differential assembly is disclosed herein. The differential assembly includes a ring gear and a case. The ring gear and case may comprise dissimilar materials. The ring gear may include a ferrous material and may be overmolded by the case. The case may include a non-ferrous material. Teeth may be formed in the ring gear. The teeth may be hardened through induction heating.
Claims20
A differential assembly comprising:
- a ring gear comprising:
- a main body comprising a ferrous material;
- and
- one or more protrusions extending from an inner surface of the ring gear towards a general center of the ring gear;
- and
- a case attached to the ring gear and comprising a non-ferrous material, wherein at least a portion of the case contacts the protrusions operatively securing the case to the ring gear.
3 more elements
A ring gear for a differential assembly comprising:
- a main body comprising an outer surface and an inner surface, wherein the inner surface comprises one or more geometric formations disposed proximal a center of the ring gear, wherein the one or more geometric formations operatively secure the ring gear with a case of the differential assembly.
A method of forming a differential assembly, the method comprising:
- providing a ferrous ring gear;
- and
- overmolding the ferrous ring gear with a non-ferrous case.
Dependencies are inferred from the claim text.