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Frictional part with a zig-zag or undulating circumferential groove in the frictional surface

A technology of friction components and friction surfaces, applied in the direction of friction linings, friction clutches, clutches, etc., can solve the problems of limited controllability of friction action devices and undesired torque transmission, and achieve the effect of improving wear characteristics

Active Publication Date: 2012-11-14
BORGWARNER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, it has been found that the controllability of the friction action device is limited when using known friction components
Furthermore, the known groove patterns create a high drag moment, which results in an undesired torque transmission even if the friction parts of the friction means are not frictionally engaged with each other

Method used

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  • Frictional part with a zig-zag or undulating circumferential groove in the frictional surface
  • Frictional part with a zig-zag or undulating circumferential groove in the frictional surface
  • Frictional part with a zig-zag or undulating circumferential groove in the frictional surface

Examples

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Embodiment Construction

[0048] figure 1 with figure 2 A first embodiment of a friction component 2 for a friction device according to the invention is shown. The shown friction component 2 is designed in this variant as a plate for a multi-plate clutch or multi-plate brake and has a friction lining carrier 4 . The friction lining carrier 4 is embodied as an annular steel disk which extends in the plane of the drawing and has an inner edge 6 and an outer edge 8 . A drive profile, preferably an internal toothing, is provided on the inner edge 6, which is only schematically represented in the figures and which is integral with the annular disc. The internal toothing serves to rotationally fixedly connect the friction part 2 to a disk carrier, but enables an axial movement of the friction part 2 along the disk carrier. The present friction part 2 is thus a so-called inner disc. However, it should be noted that the friction part 2 according to the invention could also be an outer disc, wherein then a...

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Abstract

The present invention relates to a frictional part (2) for a device operating in a frictionally engaged fashion, said part having an annular frictional surface (30) comprising an inner edge (32) and an outer edge (34), wherein a circumferential first groove (40) is provided extending in the frictional surface (30) between radially interior and radially exterior deflection points (44, 42) in a zig-zag or undulating fashion, a plurality of second grooves (54) is provided that originate from the inner edge (32) and extend to the exterior deflection points (42), and a plurality of third grooves (56) is provided that extend from the outer edge (34) into the circumferential first groove (40). According to the invention, the third grooves (56) open at opening points (58) disposed between the deflection points (42, 44) in the circumferential first groove (40).

Description

technical field [0001] The invention relates to a friction element, such as a friction plate for a friction action device such as a multi-plate clutch, which has an annular friction surface with an inner edge and an outer edge. A first circumferential groove is provided in the friction surface, the first circumferential groove extending between the radially inner and radially outer deflection points in a zigzag or undulating manner. Background technique [0002] The prior art discloses friction components for friction action devices, in particular plates for multi-plate clutches, which essentially consist of an annular friction lining carrier and a friction lining, which is attached On at least one side of the friction lining carrier, an annular friction surface is formed. The friction lining generally comprises a fibrous material produced from a paper-containing material or otherwise produced from carbon. In contrast, the friction lining carrier is generally formed from a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D13/64F16D13/72
CPCF16D2069/004F16D13/72F16D13/648
Inventor E·法布里修斯V·雷涅
Owner BORGWARNER INC
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