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US 11,002,159 B1Granted
Timing wheel attachment for camshaft phaser
AssigneeSchaeffler Technologies AG & Co. KG
InventorTimothy Simon
Life of this patent
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Abstract
A camshaft phaser is provided that includes a stator, a rotor having a plurality of vanes that form fluid chambers with the stator, and a timing wheel attached to the rotor via a spline joint arranged between the rotor and timing wheel. The spline joint is configured to prevent axial and radial movement of the timing wheel relative to the rotor.
Claims20
A camshaft phaser comprising:
- a rotational axis;
- a stator;
- a rotor having a plurality of vanes that form fluid chambers with the stator, the rotor configured to be non-rotatably connected to a camshaft of an internal combustion engine;
- and
- a timing wheel attached in a pre-defined orientation to the rotor by a spline joint arranged between the timing wheel and rotor, the spline joint configured to prevent axial, radial, and rotational movement of the timing wheel relative to the rotor.
2 more elements
A rotor for a camshaft phaser, the rotor comprising:
- a plurality of vanes configured to form fluid chambers with a stator;
- a plurality of fluid passages configured to fluidly connect the fluid chambers with a fluid pressure source;
- a plurality of splines configured to:
- i) engage a timing wheel;
- and, ii) prevent axial, radial, and rotational movement of the timing wheel relative to the rotor.
2 more elements
A method for installing a timing wheel to a rotor of a camshaft phaser, comprising:
- orienting the timing wheel to:
- i) a pre-determined rotational position relative to the rotor;
- and, ii) align a first rotational axis of the timing wheel to a second rotational axis of the rotor;
- the timing wheel having a first radial outer surface with a first outer diameter;
- and
- applying an axial force to the timing wheel to attach it to the rotor, the axial force overcoming an interference fit between the first radial outer surface and a first radial inner surface of the rotor to move the timing wheel axially relative to the rotor, the first radial inner surface configured with a plurality of splines configured to engage the first radial outer surface, and the splines configured to prevent axial, radial, and rotational movement of the timing wheel relative to the rotor.
3 more elements
Dependencies are inferred from the claim text.