Internally ventilated motor vehicle brake disc made of fibre composite material

Patent metadata

Field	Value
Publication number	US-9255618-B2
Application number	US-201314378104-A
Country	US
Kind code	B2
Filing date	Feb 14, 2013
Priority date	Feb 14, 2012
Publication date	Feb 9, 2016
Grant date	Feb 9, 2016

Abstract

An internally ventilated motor vehicle brake disc which includes at least in parts of a fiber composite material, having two parallel friction surfaces on one or more friction rings with cooling channels, wherein the friction ring or rings are arranged on a brake disc hub in a non-rotating manner, and wherein the two friction surfaces include fiber composite material, a disc-shaped carrier for the friction surfaces is provided parallel to the friction surfaces, and wherein the carrier is connected to the brake disc hub as one piece.

First claim

The invention claimed is:

1. An internally ventilated motor vehicle brake disk, which comprises at least in parts of a fiber composite material, comprising two mutually parallel friction surfaces on one or more friction rings with cooling channels, wherein the friction ring or rings are arranged concentrically and for conjoint rotation on a brake disk hub, which is provided concentrically with a wheel rotational axis, and the friction surfaces are arranged orthogonally with respect to the wheel rotational axis, wherein the two friction surfaces are comprised of fiber composite material, in that a disk-shaped carrier for the friction surfaces is provided parallel to the friction surfaces, and wherein the carrier is connected integrally to the brake disk hub, and wherein the fiber composite material is provided in a multi-filament arrangement, with filaments of each friction surface and filaments of the carrier engaged positively with one another through axially oriented filament connection sections, such that each filament connection section is in a form of a multi-filament axial laid fiber structure.

2. The internally ventilated motor vehicle brake disk as claimed in claim 1 , wherein the two friction surfaces are formed from identical fiber composite material, and the carrier is formed from a fiber composite material or from a metallic material.

3. The internally ventilated motor vehicle brake disk as claimed in claim 1 , wherein the two friction surfaces are formed from a carbon fiber composite material, and the carrier is formed from a glass fiber composite material or from an aluminum material.

4. The internally ventilated motor vehicle brake disk as claimed in claim 1 , wherein the fiber composite material is designed as a long-fiber woven fabric or knitted fabric that can be deformed three dimensionally without creasing.

5. The internally ventilated motor vehicle brake disk as claimed in claim 4 , wherein the woven fabric or knitted fabric is of tubular design.

6. The internally ventilated motor vehicle brake disk as claimed in claim 1 , wherein the cooling channels are each provided as radially open pockets between the friction surface and the carrier, and the cooling channels have a rectangular ventilation cross section.

7. The internally ventilated motor vehicle brake disk as claimed in claim 6 , wherein the ventilation cross section of the cooling channels increases from radially on the inside to radially on the outside.

8. The internally ventilated motor vehicle brake disk as claimed in claim 6 , wherein the carrier is of meandering, bent, folded or offset, design to form the pockets for the cooling channels, and wherein folding axes are arranged in a star shape, starting from the wheel axis, which coincides with a center of the carrier.

9. The internally ventilated motor vehicle brake disk as claimed in claim 1 , wherein the filament connection sections have positive fiber fixing, from at least one of crimping, knotting, weaving and interlinking, of the adjacent fiber filaments.

10. The internally ventilated motor vehicle brake disk as claimed in claim 1 , wherein an axially aligned cooling hole, which passes through the carrier and the friction surface, is provided in each case in a center of a filament connection section.

11. The internally ventilated motor vehicle brake disk as claimed in claim 1 , wherein at least one friction surface is provided with a friction surface coating.

Assignees

• Continental Teves & Ag & Co Ohg
• Continental Teves Ag & Co Ohg

Inventors

• Beer Wilhelm
• Frank Wolfgang
• Hollstein Frank
• Stauzebach Bianca

Classifications

• F16D65/127

  characterised by properties of the disc surface; Discs lined with friction material · CPC title

• F16D2065/1348

  resilient · CPC title

• F16D2065/132

  layered · CPC title

• F16D2065/1328

  internal cavities, e.g. cooling channels · CPC title

• F16D65/128 Primary

  characterised by means for cooling · CPC title