Torsional vibration damper with interleaf
AssigneeWallace Murray Corporation
InventorRobert C. Bremer, Jr.
Life of this patent
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Abstract
A torsional vibration damper for internal combustion engines. An annular inertia member is attached to a hub by an annular elastic member assembly having an interleaf. In one embodiment, the interleaf is thicker at the middle than at its ends. In another embodiment the interleaf is thinner at its middle than at its ends. The elastomer is radially deformed at different axial portions. Axial movement of the inertia member relative to the hub is inhibited, as is sliding out of the elastomer from the inertia and hub members.
Claims16
A torsional vibration damper of the type defined by a hub adapted to be rotatably coupled to the crankshaft of an internal combustion engine, the hub carrying on its outer periphery an inertia member coupled to it by elastomer, an annular interleaf within the elastomer to divide it into two annular elements which sandwich the interleaf, the outer radial surface of the hub and the inner radial surface of the inertia member each define a cylinder, the improvement comprising, the interleaf being of non-uniform cross-section to thereby radially deform the elastomer different amounts at different axial positions therealong.
A torsional vibration damper of the type defined by a hub adapted to be rotatably coupled to the crankshaft of an internal combustion engine, the hub carrying on its outer periphery an inertia member coupled to it by elastomer, an annular interleaf within the elastomer to divide it into two annular elements which sandwich the interleaf, the improvement comprising at least one of the radial distances between the inertia member inner surface and interleaf and the radial distances between the interleaf and the outer surface of the hub varying over the axial extent of the surface contact of the elastomer and the interleaf.
A torsional vibration damper of the type defined by a hub adapted to be rotatably coupled to the crankshaft of an internal combustion engine, the hub carrying on its outer periphery an inertia member coupled to it by elastomer, the outer surface of the hub being curved, the inner surface of the inertia member being curved, said curved surfaces being complementary, the improvement comprising, an interleaf of uniform radial cross-section positioned in said elastomer and extending from one axial face thereof to the other axial face of the elastomer, said interleaf being parallel at all axial portions thereof with the complementary surfaces of the hub and the inertia member.
Dependencies are inferred from the claim text.