Torsional vibration damper with spoke springs

The torsional vibration damper addresses spoke spring overloading by employing a positive-locking connection with limited rotation and additional friction elements, enhancing robustness and damping effectiveness.

DE102024132816B4Active Publication Date: 2026-05-21SCHAEFFLER TECHNOLOGIES AG & CO KG
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
SCHAEFFLER TECHNOLOGIES AG & CO KG
Filing Date
2024-11-11
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing torsional vibration dampers face issues with spoke springs being overloaded due to excessive twisting angles between inner and outer components, leading to potential damage and reduced effectiveness in reducing vibrations.

Method used

A torsional vibration damper design featuring spoke springs with a positive-locking connection that allows limited rotation within a defined clearance angle, preventing further rotation upon reaching the angle limit, and incorporating additional friction elements to enhance damping.

Benefits of technology

The design protects spoke springs from overloading, enhances robustness, and improves the effectiveness of vibration damping by allowing controlled rotation and generating friction to dampen resonant vibrations.

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Abstract

The invention relates to a torsional vibration damper (10) for reducing torsional vibrations in a drive train of a vehicle, comprising an inner component (14) rotatable about an axis of rotation (12), several circumferentially spaced spoke springs (16), an outer component (18) rotatably connected to the inner component (14) via the spoke springs (16) and rotatable to a limited extent relative to the inner component (14) against a spring force of the spoke springs (16), and at least one friction element (42) arranged frictionally between the inner component (14) and the outer component (18), wherein at least one of the spoke springs (16) is coupled to the friction element (42) by forming a free angle (50) which allows rotation between the spoke spring (16) and the at least one friction element (42).
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Citation Information

Patent Citations

  • DE102015213653A1

  • DE102016207100A1

  • DE102016207130A1

  • DE102017106566A1

  • US3285096A