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US 2005/0089712 A1Published application
CVT housing having wear-resistant bore
AssigneeGeneral Motors Corporation
InventorsYucong Wang, Sime Stavreski, Jasbir Singh
Life of this patent
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Abstract
A continuously variable transmission (CVT) includes an aluminum housing member having a bore formed therein. A rotatable pulley member is supported on a bearing within the bore. The bore includes a layer of thermal spray coating for improved wear resistance so that the bore supports the bearing without a steel sleeve therebetween.
Claims22
A transmission comprising:
- an aluminum housing member having a bore formed therein;
- a rotatable member supported on a bearing within the bore;
- and
- wherein said bore includes a layer of thermal spray coating for improved wear resistance so that the bore supports the bearing without a steel sleeve therebetween.
1 more element
A continuously variable transmission (CVT) comprising:
- an aluminum housing member having a bore formed therein;
- a rotatable pulley member supported on a bearing within the bore;
- wherein said bore includes a layer of thermal spray coating for improved wear resistance so that the bore supports the bearing without a steel sleeve therebetween;
- and
- wherein said thermal spray coating comprises a steel alloy.
2 more elements
A method of manufacturing a continuously variable transmission (CVT) comprising:
- casting an aluminum housing member with a bore formed therein;
- providing a thermal spray coating on the I. D. surface of the bore for improved wear resistance;
- and
- positioning a bearing directly against the I.D. surface of the bore for supporting a rotatable pulley member without a sleeve positioned between the bearing and the I.D. surface.
1 more element
Dependencies are inferred from the claim text.