Camshaft phaser with trigger wheel including magnetic material
AssigneeSchaeffler Technologies AG & Co. KG
InventorAndrew Mlinaric
Life of this patent
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Abstract
A camshaft phaser, including: an input element arranged to receive a first rotational torque and rotatable about an axis of rotation; an output element rotatable about the axis of rotation, rotatable with respect to the input element, arranged to non-rotatably connect to a camshaft, and arranged to transmit the first rotational torque to the camshaft; and a trigger wheel non-rotatably connected to the output element, arranged to identify a rotational position of the output element around the axis of rotation, and including a magnetic material with at least one segment having a first magnetic charge, and with at least one segment having a second magnetic charge, opposite the first magnetic charge.
Claims10
A camshaft phaser, comprising:
- an input element:
- arranged to receive a first rotational torque;
- and,
- rotatable about an axis of rotation;
- an output element:
- rotatable about the axis of rotation;
- rotatable with respect to the input element;
- arranged to non-rotatably connect to a camshaft;
- and
- arranged to transmit the first rotational torque to the camshaft;
- and,
- a trigger wheel:
- non-rotatably connected to the output element;
- arranged to identify a rotational position of the output element around the axis of rotation;
- including a circumferentially continuous magnetic material with at least one segment having a first magnetic charge, and with at least one segment having a second magnetic charge, opposite the first magnetic charge;
- and
- including a radially outer circumferential surface facing in a radially outer direction, orthogonal to the axis of rotation, and the circumferentially continuous magnetic material fully covers the radially outer circumferential surface;
- wherein the trigger wheel includes a first surface facing in a first axial direction, the first axial direction being parallel to the axis of rotation;
- wherein the magnetic material includes a first portion covering a segment of the first surface;
- and,
- wherein the first portion is circumferentially discontinuous on the segment of the first surface.
A camshaft phaser, comprising:
- an input element:
- arranged to receive a first rotational torque;
- and,
- rotatable about an axis of rotation;
- an output element:
- rotatable about the axis of rotation;
- rotatable with respect to the input element;
- arranged to non-rotatably connect to a camshaft;
- and
- arranged to transmit the first rotational torque to the camshaft;
- and,
- a trigger wheel:
- non-rotatably connected to the output element;
- arranged to identify a rotational position of the output element around the axis of rotation;
- including a body portion including a first surface facing in a first axial direction, parallel to the axis of rotation, a second surface facing in a second axial direction, opposite the first axial direction, and a radial surface facing in a radially outer direction, orthogonal to the axis of rotation;
- and
- including a magnetic material with at least one segment having a first magnetic charge, and with at least one segment having a second magnetic charge, opposite the first magnetic charge, the magnetic material including a first portion covering a segment of the first surface, a second portion covering a segment of the second surface, and a radial portion overlapping the radial surface of the body portion and connecting the first portion to the second portion.
Dependencies are inferred from the claim text.