Torque converter lockup clutch structure
AssigneeAllison Transmission, Inc.
InventorsJezrah Horen, Michael Rietdorf
Life of this patent
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Abstract
A torque converter assembly that has a turbine assembly, a pump assembly, and a clutch assembly that selectively rotationally couples the turbine assembly to the pump assembly. The clutch assembly also has at least one clutch disk and a backing plate assembly defining a backing plate surface and formed by a first plate and a second plate coupled to one another. The first plate and the second plate are coupled to each other at a first radius and a second radius, the second radius being substantially adjacent to the backing plate surface.
Claims20
A backing plate assembly, comprising:
- a first member;
- a second member coupled to the first member at least at two radially spaced locations;
- and
- a backing plate defined in the second member,
- wherein the backing plate is aligned with at least one clutch plate to resist substantial axial movement as a piston applies an axial force to the at least one clutch plate.
A method of forming a backing plate assembly, comprising:
- forming a first member;
- forming a second member;
- and
- coupling the first member to the second member at least at a first location and a second location, the first location being radially spaced from the second location.
Dependencies are inferred from the claim text.