IP Library Granted Patent US 8,657,692
Granted Patent B2
US 8,657,692 · App. 13/354,075 · Granted Feb 25, 2014

Torsion vibration damper and damping device and torque transmission device

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Quick Facts
Patent No.
US 8,657,692
App. No.
13/354,075
Granted
Feb 25, 2014
Kind
B2
Abstract

A torsion vibration damper for a drive train of a motor vehicle, in particular a drive train of a hybrid vehicle, comprising: a spring support and a force transmission flange configured rotatable relative to the spring support, wherein at least one compression spring is provided between the spring support and the force transmission flange for transferring a mechanical torque, wherein a housing of the spring support is configured so that in a radial direction of the torsion vibration damper, at least one longitudinal end of the compression spring is supported at/in the spring support housing and/or a clearance remains between windings of a center section of the compression spring and a wall of the spring support.

Claims (31)

1. A torsion vibration damper for a drive train of a motor vehicle, in particular a drive train of a hybrid vehicle, comprising:

a spring support ( 10 ) and a force transmission flange ( 20 ) configured rotatable relative to the spring support ( 10 ), wherein at least one compression spring ( 30 ) is provided between the spring support ( 10 ) and the force transmission flange ( 20 ) for transferring a mechanical torque,

wherein a housing ( 12 ) of the spring support ( 10 ) is configured so that in a radial direction of the torsion vibration damper ( 1 ) at least one longitudinal end of the compression spring ( 30 ) is supported at/in the spring support housing ( 12 ) and/or a clearance ( 40 ) remains between windings of a center section of the compression spring ( 30 ) and a wall of the spring support ( 10 ):

wherein the compression spring ( 30 ) is a straight compression spring ( 30 ), wherein the spring support housing ( 12 ) includes a u-shaped ring channel ( 130 ) in which the straight compression spring ( 30 ) is partially received in a radial direction and in an axial direction of the torsion vibration damper ( 1 ),

wherein an actuation hook ( 142 ) is provided for a support and/or an actuation of the straight compression spring ( 30 ) in the u-shaped ring channel ( 130 ) of the spring support housing ( 12 ) caused by the spring support housing ( 12 ), wherein a respective longitudinal end of the straight compression spring ( 30 ) contacts the actuation hook or is contactable at the actuation hook, and

wherein the actuation hook ( 142 ) is provided at a support device ( 14 ) which is in particular configured as a support ring ( 14 ) which is attached in the spring support housing ( 12 ), wherein the actuation hook ( 114 ) of the support device ( 14 ) extends into the u-shaped ring channel ( 130 ).

2. The torsion vibration damper recited in claim 1 wherein the respective longitudinal end of the compression spring ( 30 ) is partially enveloped in circumferential direction by the spring support housing ( 12 ), wherein the spring support housing ( 12 ) includes a protrusion ( 122 ), in particular an embossing ( 122 ) for enveloping the compression spring ( 30 ), wherein a respective longitudinal end of the compression spring ( 30 ) is contactable or contacted at the protrusion or embossing,

wherein the protrusion ( 122 ) is provided in a radially outer portion of the spring support housing ( 12 ) so that it extends inward into the spring support housing ( 12 ).

3. The torsion vibration damper recited in claim 1 ,

wherein a flange hook ( 202 ) of the force transmission flange ( 20 ) is actuatable by the straight compression spring ( 30 ), wherein the force transfer flange is centrally arranged relative to a face of the straight compression spring ( 30 ).

4. The torsion vibration damper recited in claim 1 ,

wherein a flange hook ( 202 ) of the force transmission flange ( 20 ) and a longitudinal end or a longitudinal end section of the compression spring ( 30 ) are configured in a corresponding manner, so that the flange hook ( 202 ) supports the longitudinal end of the compression spring ( 30 ) at least in a radial outward direction,

wherein the flange hook ( 202 ) engages the compression spring ( 30 ) or an end cap ( 36 ) of the compression spring through an engagement pin ( 22 ), or the flange hook ( 202 ) reaches over a protrusion at the compression spring ( 30 ) or the end cap ( 36 ) of the compression spring ( 30 ) at least on the radial outside or vice versa.

5. The torsion vibration damper recited in claim 1 ,

wherein a respective flange hook ( 202 ) includes at least one catch lug ( 204 ) which extends there from substantially in a circumferential or tangential direction of the force transmission flange, wherein the catch lug reaches over the respective compression spring ( 30 ) at least at its longitudinal end on an outside,

wherein reaching over the compression spring ( 30 ) through the catch lug ( 204 ) is provided in an axially offset manner with respect to a center of a cross section of the compression spring and two catch lugs ( 204 ) are provided that are arranged offset relative to the center of the cross section of the compression spring ( 30 ),

wherein two catch lugs ( 204 ) of two adjacent flange hooks ( 202 ) can be connected with one another, wherein a connection portion of the two catch lugs ( 204 ) is configured so that it is lifted off from the compression spring ( 30 ).

6. The torsion vibration damper recited in claim 1 ,

wherein a respective flange hook ( 202 ) includes a formed surface ( 206 ) or a protrusion ( 206 ) at a radially outer portion so that an actuation edge or an actuation surface of the flange hook ( 202 ) is oriented towards a center of the compression spring ( 30 ), and

wherein the engagement edge or the engagement surface of the flange hook ( 202 ) for engaging the compression spring ( 30 ) is configured so that the engagement edge or the engagement surface preferably partially follows approximately a contour of the cross section of the compression spring ( 30 ), wherein the actuation edge or surface is preferably u shaped with a short arm.

7. The torsion vibration damper recited in claim 1 , wherein an actuation hook ( 142 ) of the spring support housing ( 12 ) is arranged so that the actuation hook actuates or supports the compression spring ( 30 ) axially on both sides essentially symmetrically and radially outside of the center of the compression spring ( 30 ), wherein the compression spring ( 30 ) can include an outer spring ( 32 ) and an inner spring ( 34 ).

8. A damping device for a drive train of a motor vehicle including: a torsion vibration damper, turbine damper, pump damper, dual-mass converter, or dual-mass flywheel or a combination thereof, wherein the damping device includes a torsion vibration damper ( 1 ) that is configured according to claim 1 .

9. A torsion vibration damper for a drive train of a motor vehicle, comprising:

a spring support housing forming a circumferentially disposed channel having an approximate U-shape in a cross-section orthogonal to an axis of rotation for the torsion vibration damper, the approximate U-shape having an opening facing in a direction parallel to an axis of rotation for the torsion vibration damper;

a transmission flange rotatable with respect to the spring support housing and including a first portion, substantially parallel to the axis of rotation, located within the circumferentially disposed channel;

a support ring, separate from the spring support housing, fixedly connected to the spring support housing and including a second portion located within the circumferentially disposed channel; and,

a compression spring at least partially located within the circumferentially disposed channel and including first and second ends and a center section between the first and second ends, wherein:

the spring support housing, the transmission flange, and the support ring are fastened to each other only at a point radially inward of the compression spring;

a radially outermost portion of the first end of the compression spring is in contact with the spring support housing;

the first end of the compression spring is engaged with the support ring and the transmission flange; and,

a clearance is present in a radial direction between the spring support housing and a radially outermost portion of the center section of the compression spring.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED ON REEL 037732 FRAME 0347. ASSIGNOR(S) HEREBY CONFIRMS THE APP. NO. 14/553248 SHOULD BE APP. NO. 14/553258. Recorded Oct 11, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 040404/0530 →
MERGER AND CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES AG & CO. KG; SCHAEFFLER VERWALTUNGS 5 GMBH
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 037732/0228 →
CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037732/0347 →