Search International and National Patent Collections

1. (WO2017198922) DEVICE FOR DAMPING TORSIONAL OSCILLATIONS FOR A VEHICLE TRANSMISSION SYSTEM

Pub. No.:    WO/2017/198922    International Application No.:    PCT/FR2017/050991
Publication Date: Fri Nov 24 00:59:59 CET 2017 International Filing Date: Thu Apr 27 01:59:59 CEST 2017
IPC: F16F 15/14
Applicants: VALEO EMBRAYAGES
Inventors: BOUCHE, Gabriel
DAST, Pascal
MALLEY, Matthieu
Title: DEVICE FOR DAMPING TORSIONAL OSCILLATIONS FOR A VEHICLE TRANSMISSION SYSTEM
Abstract:
The invention relates to a pendulum device (5) comprising a mounting (7), rotatably movable and capable of being rigidly connected to the component, and at least one pendulum body (8) movable relative to the mounting (7), the movement of the pendulum body relative to the mounting being guided by at least one rolling member (22) engaging with at least one first raceway (24) rigidly connected to the mounting and at least one second raceway (25) rigidly connected to the pendulum body, the pendulum body comprising first and second pendulum masses (10), and at least one member (20) linking the first and second masses (10) pairing said masses, the linking member being arranged in an opening (21) of the mounting of which one portion of the contour defines the first raceway (24), characterised in that the linking member extends between a first plane (P1) and a second plane (P2) which are tangential to the linking member, the second raceway (25) is defined by the contour of the linking member (20) and extends from a third plane (P3) to a fourth plane (P4) which are secant to the linking member, and a first distance D5 measured between the first plane and the second plane is 1.5 to 3.5 times greater than a second distance D6 measured between the third plane and the fourth plane, the first plane, the second plane, the third plane and the fourth plane being parallel to one another.