Radial vibration dampers for rotating shafts
First Claim
1. A radial vibration damper comprising:
- a first inertia member and a second inertia member fixedly connected to one another to define an annular channel having a radially facing, open side;
a spring damper material seated in the annular channel in axial compression between the first inertia member and the second inertia member;
wherein the spring damper material has a compressible portion thereof protruding from the annular channel through the radially facing, open side and the compressible portion is exposed for contact in radial compression against a shaft;
wherein the compressible portion exposed for contact in radial compression against the shaft defines a gap separating the shaft a distance apart from the first and second inertia members.
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Accused Products
Abstract
Radial vibration dampers (RVD'"'"'s) press-fittable to a shaft and shaft systems incorporating RVD'"'"'s are disclosed herein. The RVD'"'"'s include a first inertia member and a second inertia member fixedly connected to one another to define an annular channel having a radially facing, open side and a spring damper material seated in the annular chamber and axially compressed between the two inertia members. The spring damper material has a compressible portion protruding from the radially facing, open side so that, when the compressible portion is compressed against a shaft, the spring damper material defines a gap between the shaft and the inertia members. The RVD may be press-fittable inside a hollow shaft or to the outside of a hollow or solid shaft. The RVD'"'"'s disclosed herein have first vibration mode shapes that are radial in nature and decoupled from latter vibration modes.
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Citations
20 Claims
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1. A radial vibration damper comprising:
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a first inertia member and a second inertia member fixedly connected to one another to define an annular channel having a radially facing, open side; a spring damper material seated in the annular channel in axial compression between the first inertia member and the second inertia member; wherein the spring damper material has a compressible portion thereof protruding from the annular channel through the radially facing, open side and the compressible portion is exposed for contact in radial compression against a shaft; wherein the compressible portion exposed for contact in radial compression against the shaft defines a gap separating the shaft a distance apart from the first and second inertia members. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A radial vibration damper comprising:
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a first inertia member and a second inertia member fixedly connected to one another to define an annular channel having a radially facing, open side; a spring damper material seated in the annular channel in axial compression between the first inertia member and the second inertia member; wherein the spring damper material has a compressible portion thereof protruding from the annular channel through the radially facing, open side and the compressible portion is exposed for contact in radial compression against a shaft, the spring damper material defines a gap between the shaft and the first and second inertia members; wherein the spring damper material includes a first rib protruding therefrom compressed by contact with the first inertia member and a second rib protruding therefrom compressed by contact with the second inertia member, and includes a main body between the first rib and the second rib that includes a stiffness portion and the compressible portion; wherein the compressible portion is more proximal to the radially facing, open side of the annular channel, and the stiffness portion is stiffer than the compressible portion. - View Dependent Claims (18, 19)
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20. A radial vibration damper comprising:
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a first inertia member and a second inertia member fixedly connected to one another to define an annular channel having a radially facing, open side; a spring damper material seated in the annular channel in axial compression between the first inertia member and the second inertia member; wherein the spring damper material has a compressible portion thereof protruding from the annular channel through the radially facing, open side and the compressible portion is exposed for contact in radial compression against a shaft, the spring damper material defines a gap between the shaft and the first and second inertia members; wherein the spring damper material comprises a main body defined by a first ring of a compressible material in contact with a surface of the shaft and a second ring of a stiffness material seated adjacent to the first ring, a third ring compressed between the main body and the first inertia member, and a fourth ring compressed between the main body and the second inertia member.
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Specification