US 11,940,026 B2
Bremsscheibe (brake disc)
Torben Keller, Tuttlingen (DE); and Johann Schmitz, Tuttlingen (DE)
Assigned to SHW Brake Systems GmbH, (DE)
Filed by SHW Brake Systems GmbH, Tuttlingen (DE)
Filed on Aug. 6, 2020, as Appl. No. 16/986,458.
Prior Publication US 2021/0246955 A1, Aug. 12, 2021
Int. Cl. F16D 65/12 (2006.01); F16D 65/02 (2006.01)
CPC F16D 65/128 (2013.01) [F16D 2065/1328 (2013.01); F16D 2065/1392 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A brake disk comprising:
a brake disk chamber;
a friction ring having two friction ring disks;
a plurality of pin-shaped connecting elements configured to connect the brake disk chamber and the friction ring;
a cooling duct being formed between the fiction ring disks, wherein the friction ring disks comprise respective friction surfaces on their outer planar surfaces and respective cooling channel surfaces on their inner planar surfaces, wherein the friction ring comprises a plurality of receiving regions for receiving the pin-shaped connecting elements, and the brake disk chamber is cast to the connecting elements during casting;
wherein a width of a gap existing between the brake disk chamber and the friction ring resulting from the fact that, during casting of the brake disk chamber, at least one section of a lateral surface of the inner diameter of the friction ring comprises a circumferentially closed section due to a material of the brake disc chamber shrinking during solidification, wherein the circumferentially closed section is used as part of a casting mold, wherein the gap has a width of 0.1 to 1.5 mm, wherein an axial extension of that part of the receiving area of the friction ring which extends from the cooling channel surface in the direction of the cooling channel is 4.0 to 7.5 mm, wherein the connecting elements are essentially cylindrical, without outwardly protruding shoulders, or are conical and have a cone angle of 0.6° to 3.6°, and wherein the connecting elements have a diameter of 3.0 to 6.5 mm.