Apparatus for damping torsional vibrations
First Claim
1. Apparatus for damping torsional vibrations, comprising:
- input and output members arranged to carry out rotary movements with and relative to each other; and
at least one damper operating between and arranged to oppose at least some rotary movements of said members relative to each other, said damper comprising at least one energy storing device, wherein said input and output members respectively comprise primary and secondary flywheels, said damper further comprising at least one input element receiving torque from said primary flywheel and an output element rotatable relative to said at least one input element and arranged to transmit torque to said secondary flywheel, said at least one energy storing device being interposed between portions of said at least one input element and said output element to yieldably oppose rotation of said at least one input element and said output element relative to each other, said apparatus further comprising a first torque transmitting connection between said input member and said at least one input element and a second torque transmitting connection between said output element and said output member, said at least one energy storing device being located at a smaller radial distance from said axis than either of said torque transmitting connections.
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Accused Products
Abstract
Apparatus for damping torsional vibrations in the power train of a motor vehicle has two coaxial flywheels one of which is driven by the engine and the other of which can transmit torque to the input shaft of a transmission by way of a friction clutch. The flywheels are rotatable relative to each other against the resistance of a damper. Certain features of the apparatus reside in the dimensioning and distribution of its parts in the radial and axial directions of the flywheels to reduce the dimensions of the apparatus. The torque transmitting connection between at least one pair of neighboring rotary parts of the apparatus employs a slip clutch which yields when the applied torque exceeds a certain value. An intermittently or continuously active hysteresis device is utilized to operate in parallel with the energy storing springs of the damper.
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Citations
77 Claims
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1. Apparatus for damping torsional vibrations, comprising:
- input and output members arranged to carry out rotary movements with and relative to each other; and
at least one damper operating between and arranged to oppose at least some rotary movements of said members relative to each other, said damper comprising at least one energy storing device, wherein said input and output members respectively comprise primary and secondary flywheels, said damper further comprising at least one input element receiving torque from said primary flywheel and an output element rotatable relative to said at least one input element and arranged to transmit torque to said secondary flywheel, said at least one energy storing device being interposed between portions of said at least one input element and said output element to yieldably oppose rotation of said at least one input element and said output element relative to each other, said apparatus further comprising a first torque transmitting connection between said input member and said at least one input element and a second torque transmitting connection between said output element and said output member, said at least one energy storing device being located at a smaller radial distance from said axis than either of said torque transmitting connections. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
- input and output members arranged to carry out rotary movements with and relative to each other; and
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70. Apparatus for damping torsional vibrations, comprising:
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input and output members arranged to carry out rotary movements with and relative to each other; and
at least one damper operating between and arranged to oppose at least some rotary movements of said members relative to each other, said damper comprising at least one energy storing device, wherein said input and output members respectively comprise primary and secondary flywheels, said damper further comprising at least one input element receiving torque from said primary flywheel and an output element rotatable relative to said at least one input element and arranged to transmit torque to said secondary flywheel, said at least one energy storing device being interposed between portions of said at least one input element and said output element to yieldably oppose rotation of said at least one input element and said output element relative to each other, said apparatus further comprising a first torque transmitting connection between said input member and said at least one input element and a second torque transmitting connection between said output element and said output member, said at least one energy storing device being located at a first radial distance from said axis and each of said connections being located at a greater second radial distance from said axis, where, in said apparatus, said flywheels are rotatable about a common axis, the apparatus further comprising means for fastening said input member to a rotary output component of a prime mover, and means for centering said flywheels relative to each other, said centering means being located at a third radial distance from said axis and said fastening means being located at a greater fourth radial distance from said axis.
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71. Apparatus for damping torsional vibrations, comprising:
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input and output members arranged to carry out rotary movements with and relative to each other; and
at least one damper operating between and arranged to oppose at least some rotary movements of said members relative to each other, said damper comprising at least one energy storing device, wherein said input and output members respectively comprise primary and secondary flywheels, said damper further comprising at least one input element receiving torque from said primary flywheel and an output element rotatable relative to said at least one input element and arranged to transmit torque to said secondary flywheel, said at least one energy storing device being interposed between portions of said at least one input element and said output element to yieldably oppose rotation of said at least one input element and said output element relative to each other, said apparatus further comprising a first torque transmitting connection between said input member and said at least one input element and a second torque transmitting connection between said output element and said output member, said at least one energy storing device being located at a first radial distance from said axis and each of said connections being located at a greater second radial distance from said axis, where, in said apparatus, said flywheels are rotatable about a common axis, the apparatus further comprising means for fastening said input member to a rotary output component of a prime mover, said fastening means including a radially outer portion disposed at a predetermined radial distance from said axis, said energy storing device including a radially innermost portion disposed at a third radial distance from said axis and said predetermined radial distance approximating said third radial distance. - View Dependent Claims (72)
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73. Apparatus for damping torsional vibrations, comprising:
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input and output members arranged to carry out rotary movements with and relative to each other; and
at least one damper operating between and arranged to oppose at least some rotary movements of said members relative to each other, said damper comprising at least one energy storing device, where, in said apparatus, said input and output members are rotatable about an axis, said apparatus further comprising means for fastening said input member to a rotary output component of a prime mover, said fastening means including a radially outer portion disposed at a predetermined radial distance from said axis and said damper further comprising an input element and an output element, one of said elements including at least one annular part connected to one of said members, and the other of said elements comprising at least one disc-shaped part connected with the other of said members, at least one of said parts including a radially innermost portion disposed at a second radial distance from said axis and said predetermined radial distance approximating said second radial distance, where, further in said apparatus, said at least one of said parts has at least one window for a portion of said at least one energy storing device, said at least one window being provided at said radially innermost portion of said at least one of said parts, and wherein further said at least one window has an open side confronting said axis.
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74. Apparatus for damping torsional vibrations comprising:
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input and output members arranged to carry out rotary movements with and relative to each other; and
at least one damper operating between and arranged to oppose at least some rotary movements of said members relative to each other, said damper comprising at least one energy storing device, where, in said apparatus, said input and output members are rotatable about an axis, said apparatus further comprising means for fastening said input member to a rotary output component of a prime mover, said fastening means including a radially outer portion disposed at a first radial distance from said axis and said damper further comprising an input element and an output element, one of said elements including at least one annular part connected to one of said members, and the other of said elements comprising at least one disc-shaped part connected with the other of said members, at least one of said parts including a radially innermost portion disposed at a greater second radial distance from said axis, where, further in said apparatus, said at least one of said parts has at least one window for a portion of said at least one energy storing device, said at least one window being provided at said radially innermost portion of said at least one of said parts, and wherein further said at least one window has an open side confronting said axis.
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75. Apparatus for damping torsional vibrations, comprising:
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input and output members arranged to carry out rotary movements with and relative to each other; and
at least one damper operating between and arranged to oppose at least some rotary movements of said members relative to each other, said damper comprising at least one energy storing device, said apparatus further comprising a hysteretic damping device operating between said members in parallel with said at least one energy storing device, where, in said apparatus, said members are rotatable about a common axis and said damper further comprises an input element, a first connection between said input element and the input member, an output element, and a second connection between said output element and the output member, said first connection being located at a different radial distance from said axis than said second connection, and said hysteretic damping device being located at an intermediate radial distance from said axis between the respective distances of said first and second connections, said at least one energy storing device being located at a smaller radial distance from said axis than either of said first and second connections. - View Dependent Claims (76)
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77. Apparatus for damping torsional vibrations, comprising:
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input and output members arranged to carry out rotary movements with and relative to each other; and
at least one damper operating between and arranged to oppose at least some rotary movements of said members relative to each other, said damper comprising at least one energy storing device, wherein said input and output members respectively comprise primary and secondary flywheels rotatable about a common axis, said apparatus further comprising means for fastening said primary flywheel to a prime mover, said damper further comprising an input element and an output element, one of said elements including a disc-shaped part and said primary flywheel comprising a wall extending substantially radially of said axis, said disc-shaped part having a radially outer portion and said damper further comprising fastener means securing said radially outer portion of said disc-shaped part to said wall, said wall and said disc-shaped part including portions which are spaced apart from each other in the direction of said axis and further comprising a hysteretic damping device at least a portion of which is disposed between said spaced-apart portions of said wall and said disc-shaped part.
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Specification