Differential gear assembly and method
AssigneeMeritor Heavy Vehicle Systems Cameri SpA
InventorsRoberto Gianone, Milenko Kvrgic, Hussein Kalaoui
Life of this patent
Estimating the term…
Abstract
An assembly of a crown wheel and a differential casing of a differential gear assembly is adapted to welding. The differential casing has a circular flange with an axially extending lip engaged in a circular groove of the crown wheel, which is further relieved at a radially outer side to give clearance for a high energy welding beam. An interface between the crown wheel and the circular flange is in one example a frusto-conical surface, which presents an oblique angle to the welding beam.
Claims15
An assembly of a differential casing and a crown wheel comprising:
- a casing having a rotational axis and a generally radially extending circular flange, wherein the generally radially extending circular flange has an axially protruding lip at a periphery thereof;
- and
- a crown wheel having a circular recess for engagement with the axially protruding lip at an interface, wherein the circular recess extends radially outwardly of the axially protruding lip to expose a radially outer side of the interface for welding,
- wherein said interface is a first interface, the casing having a circular radial shoulder with a radially outwardly facing surface, and
- wherein the crown wheel has a radially inwardly facing surface for engagement with the radially outwardly facing surface of the circular radial shoulder at a second interface different from the first interface.
An assembly of a differential casing and a crown wheel comprising:
- a casing having a rotational axis and a generally radially extending circular flange, wherein the generally radially extending circular flange has an axially protruding lip at a periphery thereof;
- and
- a crown wheel having a circular recess for engagement with the axially protruding lip at an interface, wherein the circular recess extends radially outwardly of the axially protruding lip to expose a radially outer side of the interface for welding, wherein the interface is at an oblique angle to the rotational axis and is consituted by adjacent coplanar circular faces of the axially protruding lip and the circular recess.
Dependencies are inferred from the claim text.