Centrifugal pendulum device

Patent metadata

Field	Value
Publication number	US-10094444-B2
Application number	US-201415023661-A
Country	US
Kind code	B2
Filing date	Sep 8, 2014
Priority date	Sep 26, 2013
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

A centrifugal pendulum device-for a damper device and/or a torque transfer device has a pendulum mass carrier rotatable around an axis of rotation, on which a plurality of pendulum masses movable relative to the pendulum mass carrier are suspended in the circumferential direction, wherein an individual pendulum mass is suspended by a single guide element on the pendulum mass carrier, and a counter bearing supports this individual pendulum mass individually on the pendulum mass carrier. Another centrifugal pendulum device has a pendulum mass carrier rotatable around an axis of rotation, on which a plurality of pendulum masses movable relative to the pendulum mass carrier are suspended in the circumferential direction, wherein the centrifugal pendulum device is designed in such a way that at least two pendulum masses exhibit different vibration and/or oscillation behavior during operation.

First claim

What is claimed is:

1. A centrifugal pendulum device for a damper device or a torque transfer device comprising:
a pendulum mass carrier rotatable around an axis of rotation;
a plurality of pendulum masses movable in a circumferential direction in relation to the pendulum mass carrier being suspended on the pendulum mass carrier, at least one individual pendulum mass of the plurality of pendulum masses being suspended on the pendulum mass carrier via a single guide element; and
a counter bearing supporting the individual pendulum mass being additionally on the pendulum mass carrier, the counter bearing being radially outside of the single guide element and being arranged and configured for sliding along a bearing surface of the pendulum mass carrier,
wherein at least one of the pendulum masses is suspended bifilarly on the pendulum mass carrier and the counter bearing and the bearing surface assigned thereto are lacking on the pendulum mass carrier.

2. The centrifugal pendulum device as recited in claim 1 wherein:
the individual pendulum mass is suspended monofilarly on the pendulum mass carrier via the single guide element;
a single guideway of the individual pendulum mass being provided in the circumferential direction of the individual pendulum mass and centered in the individual pendulum mass;
the individual pendulum mass and the single guideway being designed mirror symmetrical in reference to a centerline of the individual pendulum mass extending in a radial direction; or
the single guideway of the individual pendulum mass extends from a center section radially outward within the pendulum mass.

3. The centrifugal pendulum device as recited in claim 2 wherein the single guideway of the individual pendulum mass extends from a center section radially outward within the pendulum mass in an arc shape.

4. The centrifugal pendulum device as recited in claim 1 wherein the pendulum mass carrier includes a plurality of guideways for the pendulum masses, wherein:
all of the guideways of the pendulum mass carrier for the pendulum masses being provided rotationally symmetrically to each other in reference to a guideway directly adjacent in the circumferential direction;
all of the guideways of the pendulum mass carrier for the pendulum masses are directly adjacent to each other at 180°, 120°, 90°, 72°, 60°, 51.4° or 45°; or
at least one of the guideways of the pendulum mass carrier extends from a center section radially inward within the pendulum mass carrier.

5. The centrifugal pendulum device as recited in claim 4 wherein the guideway of the pendulum mass carrier extends from a center section radially inward within the pendulum mass carrier in an arc shape.

6. The centrifugal pendulum device as recited in claim 1 wherein the pendulum mass carrier has a bearing surface upon which the counter bearing is actable.

7. The centrifugal pendulum device as recited in claim 1 wherein the bearing surface is provided on an outer circumferential edge of the pendulum mass carrier.

8. The centrifugal pendulum device as recited in claim 1 wherein the counter bearing is configured to mechanically pre-tension radially outward the individual pendulum mass, the individual pendulum mass firmly connected mechanically to the counter bearing.

9. The centrifugal pendulum device as recited in claim 8 wherein the counter bearing is a spring support having a radial spring.

10. The centrifugal pendulum device as recited in claim 8 wherein the counter bearing is a roller bearing.

11. The centrifugal pendulum device as recited in claim 1 wherein
guideways of the pendulum mass carrier, guideways of the pendulum masses or bearing surfaces of the pendulum mass carrier are designed in such a way that at a minimal oscillation angle of the centrifugal pendulum device, a guide element and the counter bearing assigned thereto lie on a straight connecting line that runs through the axis of rotation, or
at an oscillation angle of the centrifugal pendulum device greater than the minimal oscillation angle, the straight connecting line of the guide element and the counter bearing assigned thereto does not run through the axis of rotation.

12. The centrifugal pendulum device as recited in claim 1 wherein monofilar and bifilar suspensions of the pendulum masses alternate with each other in the circumferential direction on the pendulum mass carrier, and
one of the pendulum masses having bifilar suspension in the circumferential direction in reference to an arc length covers a larger section than a further pendulum mass having monofilar suspension, or
one of the pendulum masses having bifilar suspension has a greater mass than a further pendulum mass having monofilar suspension.

13. A trapezoidal centrifugal pendulum device comprising the centrifugal pendulum device as recited in claim 1 .

14. A drivetrain of a motor vehicle comprising the centrifugal pendulum device as recited in claim 1 .

15. A centrifugal pendulum device for a damper device or a torque transfer device comprising:
a pendulum mass carrier rotatable around an axis of rotation, and
a plurality of pendulum masses movable in a circumferential direction in relation to the pendulum mass carrier being suspended on the pendulum mass carrier,
the plurality of pendulum masses including at least two first pendulum masses and at least two second pendulum masses, each of the first pendulum masses including two first mass halves each including two guideways for circumferentially movably supporting the first pendulum masses on the pendulum mass carrier, each of the second pendulum masses including two second mass halves each including only a single guideway for circumferentially movably supporting the second pendulum masses on the pendulum mass carrier.

16. The centrifugal pendulum device as recited in claim 1 wherein the pendulum mass carrier includes a first pair of guideways for bifilar suspension of a first of the pendulum masses and a second pair of guideways for bifilar suspension of a second of the pendulum masses, the first pair of guideways being provided rotationally symmetrically the second pair of guideways, the first and second pairs of guideways being offset from each other by 180°, 120°, 90°, 60° or 45°.

17. A centrifugal pendulum device for a damper device or a torque transfer device comprising:
a pendulum mass carrier rotatable around an axis of rotation;
a plurality of pendulum masses movable in a circumferential direction in relation to the pendulum mass carrier being suspended on the pendulum mass carrier, at least one individual pendulum mass of the plurality of pendulum masses being suspended on the pendulum mass carrier via a single guide element; and
a counter bearing supporting the individual pendulum mass being additionally on the pendulum mass carrier,
wherein a further pendulum mass is also suspended bifilarly on the pendulum mass carrier by two guide elements.

Assignees

• Schaeffler Technologies Ag

Inventors

• Movlazada Parviz
• Maienschein Stephan

Classifications

• F16F15/145 Primary

  Masses mounted with play with respect to driving means thus enabling free movement over a limited range · CPC title

• F16F2228/08

  pre-stressed · CPC title