DUST SHEET FOR REDUCING BRAKE NOISE AND BRAKE SYSTEM COMPRISING A DUST SHEET
The invention relates to a dust sheet for a vehicle brake configured for reducing brake noise, to a disk brake system comprising a dust sheet and to a method for making a dust sheet, wherein the dust sheet comprises, at least in a section, two or more layers.
1 . A dust sheet for a vehicle brake, configured for reducing brake noise, wherein the dust sheet comprises, at least in a section, two or more layers.
2 . The dust sheet according to claim 1 , wherein at least two adjacent layers of the two or more layers are arranged at a distance from each other to form one or more cavities.
3 . The dust sheet according to claim 2 , wherein a width of at least one cavity of the one or more cavities is at least 0.1 mm or at least 0.2 mm and/or at most 0.5 mm or at most 0.3 mm.
4 . The dust sheet according to claim 2 , wherein one or more webs extend within at least one cavity of the one or more cavities, the webs connecting the two adjacent layers.
5 . The dust sheet according to claim 4 , wherein the dust sheet comprises at least two webs having a different size from each other and/or a different material from each other.
6 . The dust sheet according to claim 4 , wherein the one or more webs are arranged in such a way that they divide the cavity in which they are arranged into several sections, in particular sections of different sizes.
7 . The dust sheet according to claim 2 , wherein at least one cavity of the one or more cavities is filled with a filling material, in particular with a solid material or a foam or a gel or a powder.
8 . The dust sheet according to claim 1 , wherein at least two adjacent layers of the two or more layers are in surface contact with each other.
9 . The dust sheet according to claim 1 , wherein a thickness of at least one of the two or more layers is at least 0.2 mm or at least 0.4 mm or at least 0.5 mm and/or at most 1.2 mm or at most 1 mm.
10 . The dust sheet according to claim 1 , wherein the two or more layers include at least two layers with a different thickness from each other.
11 . The dust sheet according to claim 1 , wherein at least one of the two or more layers comprises or consists of one or more of:
a temperature resistant plastic,
a temperature resistant matrix material, in particular a textile-like matrix material.
12 . The dust sheet according to claim 1 , wherein the dust sheet is devoid of metal.
13 . The dust sheet according to claim 1 , wherein the two or more layers include at least two layers that are made of a different material from each other.
14 . The dust sheet according to claim 1 , wherein at least one layer of the two or more layers is made from a material that is flexible and/or soft and/or designed as a textile-like fabric or web.
15 . The dust sheet according to claim 14 , wherein the at least one layer that is made from a material that is flexible and/or soft and/or de-signed as a textile-like fabric or web is in surface contact with a further layer of the two or more layers, in particular glued thereto.
16 . The dust sheet according to claim 14 , wherein the at least one layer that is made from a material that is flexible and/or soft and/or de-signed as a textile-like fabric or web has a thickness of at least 0.2 mm and/or at most 0.5 mm.
17 . The dust sheet according to claim 1 , wherein at least one of the two or more layers has a coating on at least one side.
18 . A disk brake system comprising a dust sheet according to claim 1 , wherein the dust sheet is configured in such a way that its eigenfrequencies are different from eigenfrequencies of neighbouring brake components, in particular from eigenfrequencies of the brake disk.
19 . Method for making a dust sheet according to claim 1 , comprising additive manufacturing and/or joining at least two of the two or more layers, in particular by welding or gluing.