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Torsion oscillation damper with journal bearing

A sliding bearing, shock absorber technology, applied in the direction of springs/shock absorbers, bearings, couplings, etc., can solve problems such as damage, insufficient cycle, rapid wear of sliding bearings and/or large increase in friction coefficient

Inactive Publication Date: 2008-02-06
VALEO EMBRAYAGES SAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] [08] However, it should be noted that commonly used plain bearings, especially metal plain bearings, which allow drive chains to work, wear out quickly over time
In fact, these slide bearings wear rapidly and / or have a large increase in the coefficient of friction after a certain number of cycles which is not enough to allow the use of a double-damped flywheel thus equipped under operating conditions corresponding to the present technical specifications. not enough

Method used

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  • Torsion oscillation damper with journal bearing
  • Torsion oscillation damper with journal bearing

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Embodiment Construction

[0059] [59] As mentioned above, Figure 1 shows the device used to perform the "D20" test.

[0060] [60] FIG. 2 shows a detail shown in FIG. 1, in which the main flywheel 11, the auxiliary flywheel 12, the axial bearing 13 and the radial bearing 14 are shown.

[0061] [61] FIG. 3 shows an axial bearing 13 having a substantially annular shape. According to the present invention, the axial bearing is composed of a selected polyamide-based material that contains lubricant and does not contain fiber material.

[0062] [62] In order to determine the materials that can form the bearings that make the shock absorber meet the current technical specifications, many materials have been tested under the above-mentioned "D20" test conditions.

[0063] [63] Table 1 summarizes the results of the test using axial bearings. As listed in rows 2 to 4 in the table, the constituent materials of the axial bearing are based on a matrix and contain one or more A lubricant, and optionally reinforcing fibe...

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PUM

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Abstract

A torsion oscillation damper comprises: an input element and an output element. The input element and the output element are connected by a sliding bearing and able to rotate coaxially. At least an accumulator disposed between the input element and the output element prevents the relative rotation between two parts. The sliding bearing is constituted by the polyamide group material including the lubricant and is not containing the fiber material approximately.

Description

Technical field [0001] [01] The present invention relates to a torsional vibration damper, which has at least one input part and one output part, which are connected to each other by a sliding bearing and can rotate coaxially. At least one accumulator is located between the input part and the output part, and the accumulator prevents the relative rotation of the two parts. [0002] [02] The present invention particularly relates to a dual damping flywheel (called DVA) especially used in motor vehicles, which includes a main inertia flywheel as an input component, and which includes a pair of inertia flywheel as an output component, wherein the two flywheels pass The sliding bearings are supported and centered one on top of the other. Background technique [0003] [03] The accumulator is usually composed of springs, which are arranged between the flywheels, so that the flywheels are connected in rotation, and there is an angular travel between the two flywheels. [0004] [04] In o...

Claims

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Application Information

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IPC IPC(8): F16D3/12F16F15/10F16F15/30F16C33/20C08L77/02C08K3/30C08L27/18C08L83/04C08K3/04
CPCF16F15/13178F16C33/20F16C33/201F16C2202/50F16C2208/32F16C2208/60F16C2361/55F16F15/12F16F15/131
Inventor P·梅罗F·迪索M·马莱
Owner VALEO EMBRAYAGES SAS
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