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US 9,790,987 B2Granted
Bearing arrangement
AssigneeMahle International GmbH
InventorsMichael Kreisig, Falk Schneider
Life of this patent
Estimating the term…
Abstract
A bearing arrangement for a camshaft may include a bearing ring arranged between two functional elements. The bearing ring may be supported with respect to the functional elements via axial front sides. At least one of the axial front sides of the bearing ring and a side of the respective functional elements in sliding contact with the axial front side may have a polymer coating.
Claims20
A bearing arrangement for a camshaft, comprising:
- a bearing ring arranged between two receiving elements, the bearing ring including lateral shoulders and supported with respect to the receiving elements via axial front sides, and a polymer coating disposed on an axially facing contact surface of at least one of (i) the axial front sides of the bearing ring and (ii) a side of the respective receiving elements in sliding contact with the axial front sides;
- wherein the bearing ring includes a double-T-shaped cross-section forming an I-shaped cross section having the lateral shoulders projecting radially outwards;
- and wherein the polymer coating has a base material and includes a dispersion of polytetrafluoroethylene particles in a concentration of 1-15% by volume.
An internal combustion engine, comprising:
- a camshaft having a longitudinal axis and at least two receiving elements each having an opening received by the camshaft;
- and a bearing arrangement, the bearing arrangement including a bearing ring arranged between the at least two receiving elements in an axial direction of the longitudinal axis, the bearing ring including lateral shoulders and supported with respect to the at least two receiving elements via at least two axial front sides, and a polymer coating disposed on an axially facing contact surface of at least one of (i) the at least two axial front sides of the bearing ring and (ii) a side of the respective receiving elements in sliding contact with the at least two axial front sides;
- wherein the bearing ring includes a double-T-shaped cross-section forming an I-shaped cross section having the lateral shoulders projecting radially outwards;
- wherein the polymer coating includes a dispersion of polytetrafluoroethylene particles in a concentration of 1-15% by volume;
- and wherein at least one axial front side of the at least two axial front sides includes a plurality of oil supply grooves spaced apart circumferentially and extending radially with respect to the longitudinal axis.
2 more elements
Dependencies are inferred from the claim text.