BRAKE DISK

• US 20100089710A1
• Filed: 10/06/2009
• Published: 04/15/2010
• Est. Priority Date: 10/14/2008
• Status: Abandoned Application

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Franke, Michael
• Application Number:
  US12/574,189
• Publication Number:
  US 20100089710A1
• Time in Patent Office: Days
• US Class Current: 188/218.XL
• CPC Class Codes: F16D 2065/1328 internal cavities, e.g. cooling channels
• CPC Class Codes: F16D 2065/1344 permanent, e.g. by casting
• CPC Class Codes: F16D 2065/136 with relative movement radially
• CPC Class Codes: F16D 2200/0013 Cast iron
• CPC Class Codes: F16D 2200/003 Light metals, e.g. aluminium
• CPC Class Codes: F16D 2200/0039 Ceramics
• CPC Class Codes: F16D 2250/0015 around inserts
• CPC Class Codes: F16D 65/12 Discs; Drums for disc brakes

Abstract

A brake disk has a friction ring and a disk chamber connected to the friction ring via connecting links. The connecting links are made of ceramic material, in this instance. Aluminum oxide or zirconium oxide may be used in this connection, for example.

Claims

1. A brake disk comprising:

a friction ring having a circumferential wall;

a supporting structure; and

a plurality of connecting links situated at a circumference of the supporting structure and connected to the supporting structure, the connecting links extending into the circumferential wall of the friction ring, the connecting links being made of ceramic material.

2. The brake disk according to claim 1, wherein a density of the ceramic material is between 3.9 and 6 g/cm³.

3. The brake disk according to claim 1, wherein a bending strength of the ceramic material is between 340 and 120 MPa.

4. The brake disk according to claim 1, wherein the ceramic material is aluminum oxide (Al₂O₃).

5. The brake disk according to claim 1, wherein the ceramic material is zirconium oxide (ZrO₂).

6. The brake disk according to claim 5, wherein the ceramic material is ZrO₂—

3Y20A.

7. The brake disk according to claim 5, wherein the ceramic material is ZrO₂—

3Y.

8. The brake disk according to claim 1, wherein the ceramic material is silicon carbide.

9. The brake disk according to claim 8, wherein the ceramic material is LPS-SiC.

10. The brake disk according to claim 1, wherein the brake disk is a ventilated brake disk.