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Internally ventilated brake disc for motor vehicle disc brake and method for manufacturing the brake disc

A technology of disc brakes and brake discs, applied in the directions of brake components, brake discs, brake types, etc., can solve the problems affecting brake cooling, differential friction value characteristics, etc., and achieve the effect of cost saving

Inactive Publication Date: 2015-10-28
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has proven to be a disadvantage here that the NAO pads firstly have worse friction value properties after elevated temperature loading, while the use of "dust caps" adversely affects brake cooling

Method used

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  • Internally ventilated brake disc for motor vehicle disc brake and method for manufacturing the brake disc
  • Internally ventilated brake disc for motor vehicle disc brake and method for manufacturing the brake disc
  • Internally ventilated brake disc for motor vehicle disc brake and method for manufacturing the brake disc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047] figure 1 and figure 2 Brake discs are shown, which are collectively denoted by reference number 10 .

[0048] The brake disk 10 comprises a first friction ring 12 with an outer friction surface 14 and a second friction ring 16 arranged parallel to the first friction ring 12 and having an inner friction surface 18 as well as a cup-shaped connecting region 20 .

[0049] A plurality of cooling channels 22 are provided in a known manner between the first and second friction rings 12 , 16 .

[0050] especially by figure 1 It can be seen that a plurality of grooves 24 oriented in the radial direction r are formed in the outer friction surface 14 of the first friction ring 12 . These grooves 24 are regularly distributed in the circumferential direction, and in the present invention are spaced from each other by an angle of 60°.

[0051] Furthermore, especially by image 3 It can be seen that the radially inner end and the radially outer end of the groove 24 are closed. ...

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Abstract

The brake disc (10) has front friction ring (12) and rear friction ring which are respectively provided on outer friction surface (14) and inner friction surface. Several cooling channels are formed between the friction rings. The through-openings (26) are formed in order to extend from the bottom of grooves (24) to cooling channel. A baffle edge is formed on the outer diameter of front friction ring which is geared to rear friction ring. An independent claim is included for manufacturing method of ventilated brake disc for disc brake of motor vehicle.

Description

technical field [0001] The invention relates to an internally ventilated brake disk for a motor vehicle disk brake and to a method for producing such a brake disk. Background technique [0002] During braking, friction between the brake pads / linings and the brake disc produces wear matter which forms brake dust particles and accumulates in particular in the visible region of the rim well. This rim dirt is considered to be a particularly annoying nuisance. [0003] In order to avoid or reduce rim fouling, various methods are known in the prior art, such as using special brake pads with reduced friction values ​​(so-called NAO pads) or placing so-called NAO pads between the rim and the brake system. The "dust cover" acts as a barrier and visible protection. It has been found to be disadvantageous here that the NAO pads firstly have poorer frictional value properties after elevated temperature exposure, and that the use of "dust caps" has a negative effect on brake cooling. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D65/12B22C9/22B23C3/28
CPCF16D65/128F16D65/0031F16D2065/1328F16D2069/004
Inventor C·亨奇克
Owner AUDI AG