Torsional vibration damper with centrifugal pendulum

A technology of torsional vibration damper and shock absorber, which is applied in the field of torsional vibration damper and can solve problems such as insufficient moment of inertia of pendulum mass

Pending Publication Date: 2020-12-29
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this pendulum mass arrangement, the moment of inertia of the pendulum mass may be insufficient

Method used

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  • Torsional vibration damper with centrifugal pendulum
  • Torsional vibration damper with centrifugal pendulum

Examples

Experimental program
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Effect test

Embodiment Construction

[0028] figure 1 It is a half section of the torsional vibration damper 10 in a special embodiment of the present invention. The torsional vibration damper 10 is a dual-mass flywheel, and the dual-mass flywheel is installed in an automobile powertrain system for reducing torsional vibration. The torsional vibration damper 10 comprises a damper input 12 rotatable about an axis of rotation A, which can be connected via a threaded connection 14 to a drive element, for example an internal combustion engine.

[0029] The damper input 12 includes a primary flywheel 16 with a flywheel ring gear 20 and a primary flywheel mass 22 on the outer circumference 18 , as well as a cover plate 23 connected to the primary flywheel 16 . The shock absorber input 12 is integrally formed with a shock absorber housing 24 , which consists of a primary flywheel 16 and a cover plate 23 and at least partially defines an inner space 25 . The inner space 25 is preferably filled with a lubricating fluid, ...

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Abstract

The invention relates to a torsional vibration damper (10) for reducing torsional vibrations. The torsional vibration damper comprises a damper shell (24), which at least partially defines an interior(25), at least one spring element (28), a damper input (12), which can be rotated about an axis of rotation (A), and a damper output (30), wherein the damper output can be rotated to a limited extentagainst the damper input (12) against the action of at least one spring element (28), and a centrifugal pendulum (44) having a pendulum mass carrier (46) and at least one pendulum mass (48), which ismounted on the pendulum mass carrier (46) and can be pivoted to a limited extent along a pendulum path, wherein the spring element (28) and the pendulum mass (48) are arranged in the interior (25), and wherein the pendulum mass (48) is arranged so as to overlap the spring element (28) in the radial direction by a radial dimension (L) and in the axial direction by an axial dimension (B).

Description

technical field [0001] The invention relates to a torsional vibration damper with a centrifugal pendulum according to the general concept of claim 1 . Background technique [0002] A torsional vibration damper is known, for example, from DE 10 2014 225 663 A1. It describes a torsional vibration damper designed as a dual-mass flywheel. The dual-mass flywheel has a housing delimiting an interior space, in which a hub flange is arranged, on which a centrifugal pendulum with a plurality of pendulum masses distributed over the circumference is fastened . Dual-mass flywheels include a primary flywheel mass and a secondary flywheel mass that can twist relative to each other against the force of a plurality of arcuate damping springs. The arc-shaped damping spring is arranged in the same inner space as the pendulum mass. The pendulum mass is arranged radially inside the arc-shaped damping spring. In such a pendulum mass arrangement, the moment of inertia of the pendulum mass ma...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): F16F15/14
CPCF16F15/145F16F15/134F16F15/123
InventorP·施特拉塞尔D·艾赖纳
OwnerSCHAEFFLER TECH AG & CO KG