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US 11,965,439 B1Granted
Variable camshaft timing sun gear cushion ring
AssigneeBorgWarner Inc.
InventorDouglas Perry
Life of this patent
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Abstract
An electrically-controlled camshaft phaser with a gearbox assembly, including a sun gear having outwardly-facing gear teeth; at least one planet gear, having outwardly-facing gear teeth, that moves radially relative to an axis of sun gear rotation; at least one pin that carries the planet gear; and a deformable outer ring, carried by the sun gear, that engages the planet gear and moves the planet gear radially toward a ring gear.
Claims3
An electrically-controlled camshaft phaser with a gearbox assembly, comprising:
- a sun gear having outwardly-facing gear teeth in between one axial end and another axial end of the sun gear;
- a circumferential groove formed in the sun gear between the axial ends;
- at least one planet gear, having outwardly-facing gear teeth, that moves radially relative to an axis of the sun gear rotation;
- at least one pin that carries the at least one planet gear;
- and
- a deformable outer ring formed from a compressible material that when the compressible material is compressed provides an opposite-direction return force, received within the circumferential groove, that engages the at least one planet gear and moves the at least one planet gear radially toward a ring gear in response to the opposite-direction return force, wherein the deformable outer ring engages a hub surface of the at least one planet gear.
3 more elements
Dependencies are inferred from the claim text.