BRAKE DUST PARTICLE FILTER WITH WATER/SLUDGE DRAIN

Abstract

A brake dust particle filter for an assembly with a brake disc is provided with a ring section-shaped housing that at least partially surrounds the brake disc in a mounted state. The housing has a housing interior. The housing is made of a metal material. The housing interior has a lowermost point and has at the lowermost point an axially embodied drainage cutout for drainage of a fluid out of the housing interior. The housing has an outwardly positioned, mostly axially expanding guide arranged at the drainage cutout for guiding the fluid. An assembly with a brake disc and a brake caliper arranged at the brake disc is provided with such a brake dust particle filter that is arranged at least partially in a bottom region of the brake disc.

Claims

1. A brake dust particle filter for an assembly with a brake disc, wherein the brake dust particle filter comprises: a housing comprising a shape of a ring section and configured to at least partially surround the brake disc in a mounted state, wherein the housing comprises a housing interior, wherein the housing comprises or is comprised of a metal material; wherein the housing interior comprises a lowermost point and comprises at the lowermost point an axially embodied drainage cutout configured to drain a fluid out of the housing interior; wherein the housing comprises an outwardly positioned, mostly axially expanding guide arranged at the drainage cutout and configured to guide the fluid.

2. The brake dust particle filter according to claim 1, wherein the guide and the housing are formed together as one piece.

3. The brake dust particle filter according to claim 2, wherein the guide is closed in a circumferential direction thereof.

4. The brake dust particle filter according to claim 3, wherein the guide is tubular.

5. The brake dust particle filter according to claim 2, wherein the guide is open in a circumferential direction thereof.

6. The brake dust particle filter according to claim 5, wherein the guide is formed as a groove.

7. The brake dust particle filter according to claim 1, wherein the guide is inclined relative to the horizontal.

8. The brake dust particle filter according to claim 1, further comprising a filter medium, wherein the drainage cutout is covered at least partially by the filter medium.

9. The brake dust particle filter according to claim 8, wherein the drainage cutout is covered completely by the filter medium.

10. The brake dust particle filter according to claim 8, wherein the filter medium is a metal grid and/or a metal nonwoven.

11. The brake dust particle filter according to claim 1, wherein the housing is comprised of a multi-part configuration.

12. The brake dust particle filter according to claim 1, wherein the housing is comprised of a two-part configuration.

13. The brake dust particle filter according to claim 1, wherein, in an area surrounding the lowermost point of the housing interior, a wall of the housing is inclined in a direction toward the lowermost point of the housing interior.

14. The brake dust particle filter according to claim 13, wherein the wall of the housing is a radial circumferential side.

15. The brake dust particle filter according to claim 1, wherein the housing comprises a housing wall comprising at least one filter cutout with a filter medium.

16. The brake dust particle filter according to claim 15, wherein the housing wall is a circumferential side of the housing.

17. The brake dust particle filter according to claim 1, wherein a wall of the housing facing the housing interior comprises constructively provided depressions and/or elevations.

18. The brake dust particle filter according to claim 17, wherein the depressions are flow grooves and/or the elevations are guide ribs.

19. The brake dust particle filter according to claim 1, wherein a wall of the housing facing the housing interior comprises a surface coating configured to prevent fluid and/or solid bodies from adhering to the wall of the housing and/or to promote drainage of the fluid on the wall of the housing.

20. An assembly comprising: a brake disc; a brake caliper arranged at the brake disc; a brake dust particle filter according to claim 1 arranged at least partially in a bottom region of the brake disc.

21. The assembly according to claim 20, further comprising a cover plate forming a part of the housing of the brake dust particle filter.

22. The assembly according to claim 20, further comprising a wheel rim, wherein the guide of the housing extends mostly axially to a wheel rim inner edge of the wheel rim and/or is oriented toward wheel rim spokes of the wheel rim to enable a targeted rinsing of the wheel rim spokes.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0030] FIG. 1 shows a first embodiment of an assembly with a wheel rim.

[0031] FIG. 2 shows a section illustration II-II of the assembly with a wheel rim of FIG. 1.

[0032] FIG. 3 shows a plan view of a second embodiment of an assembly with a wheel rim.

[0033] FIG. 4 shows a section illustration IV-IV of the assembly with a wheel rim of FIG. 3.

[0034] FIG. 5 shows a side view of the second embodiment of the assembly of FIG. 3 without wheel rim.

[0035] FIG. 6 shows a perspective view of the second embodiment of the assembly of FIG. 3 without wheel rim.

[0036] FIG. 7 shows a side view of a further embodiment of an assembly.

DESCRIPTION OF PREFERRED EMBODIMENTS

[0037] FIG. 1 shows a first embodiment of an assembly 10 with a brake disc 12, a brake caliper 14, a cover plate 16, a wheel rim 18, and a brake dust particle filter 20 which is located in the bottom region of the brake disc 12 in the mounted state. The brake dust particle filter 20 comprises at a lowermost point U a drainage cutout 22 which is arranged at a side of the housing 24 that is parallel to and spaced apart from the brake disc 12.

[0038] FIG. 2 shows a section illustration II-II of the assembly 10 with the wheel rim 18 of FIG. 1. The brake dust particle filter 20 comprises a housing bottom 26 at the radial circumferential side 28 of the housing 20. The housing bottom 26 comprises an incline β relative to the horizontal H toward the lowermost point U.

[0039] FIG. 3 shows a plan view of a second embodiment of an assembly 10 with a brake disc 12, a brake caliper 14, a cover plate 16, a wheel rim 18, and a brake dust particle filter 20. The brake dust particle filter 20 comprises a guide 30 which is arranged or embodied at the drainage cutout 22 at the lowermost point U of the housing 24. Preferably, the guide 30—as presently—can be embodied as one piece together with the housing 24 or a part of the housing 24.

[0040] FIG. 4 shows a section IV-IV of the assembly 10 of FIG. 3. Under certain environmental conditions such as, for example, driving through rain, a carwash, wading or off-road, fluid can penetrate into the assembly 10 through the gaps between the brake disc 12 and the cover plate 16, between the brake disc 12 and the brake dust particle filter 20 as well as through various cutouts in the cover plate 16 and/or the brake dust particle filter 20. When such fluid subsequently remains in the assembly 10, this leads to undesirable sludge accumulation or clogging of the brake dust particle filter 20. The function of the brake dust particle filter 20 is impaired or even completely canceled. In order to ensure the function of the brake dust particle filter 20, it comprises at the lowermost point U of the housing 24, in particular of the housing interior 32, a drainage cutout 22. Fluid and/or solid bodies introduced into the assembly 10 can reach the lowermost point U of the housing 24, in particular of the housing interior 32, via the wall of the housing 24, the wall of the cover plate 16 and/or via the wall of the brake disc 12. The fluid is subsequently guided out of the housing 24 through the axially configured drainage cutout 22 that is embodied mostly parallel to the brake disc 12.

[0041] Guiding of the fluid through the housing interior 32 can be realized particularly effectively when the cover plate 16 is a component of the housing 24 of the brake dust particle filter 20. Due to a flow-optimized configuration of the housing interior 32, it is ensured that a quick drainage of the fluid is realized also across the largest distance between the uppermost point O, opposite the lowermost point U, and the lowermost point U.

[0042] The assembly 10 comprises a guide 30 that is positioned at the housing 24 externally at the drainage cutout 22. The guide 30 extends in this context primarily in axial direction, respectively, parallel to a brake disc rotation axis H, to the wheel rim inner edge 34 and comprises an incline α relative to a plane that is parallel to the horizontal H, respectively, to the brake disc rotation axis and extends through the lowermost point U. The incline α can be adapted in relation to the available installation space, in particular the space between brake dust particle filter 20 and wheel rim well 36. Moreover, there is the possibility of predetermining the flow velocity of the exiting fluid by means of the incline α. This is in particular important in connection with fluids of higher viscosity.

[0043] In the embodiment according to FIG. 4, the guide 30 is open in its circumferential direction, in particular groove-like. Depending on the application situation, the guide 30 can also be embodied closed in its circumferential direction, in particular tubular. Moreover, the cross section of the guide 30 can be of a round, rounded or angular configuration. In an advantageous embodiment, the guide 30 is embodied as one piece together with the housing 24 of the brake dust particle filter 20. This facilitates mounting as well as manufacture of the brake dust particle filter 20. Moreover, the guide 30 can be attached as a separate component at the brake dust particle filter 20 in order to enable a flexible conversion of the assembly 10 to a special application situation or in order to retrofit existing systems with brake dust particle filters 20 without guide 30 (see FIG. 1) in an inexpensive manner.

[0044] FIG. 5 shows a side view of the second embodiment of the assembly 10 with the brake disc 12, the brake caliper 14, and the brake dust particle filter 20. The brake dust particle filter 20 comprises the externally positioned, mostly axially extending guide 30, the radial circumferential side 28, and the housing bottom 26.

[0045] FIG. 6 shows the second embodiment of the assembly 10 with the brake disc 12, the brake caliper 14, the cover plate 16, and the brake dust particle filter 20 of FIG. 3. A guide 30 extending mostly in axial direction and mostly parallel to the horizontal H is arranged externally at the housing 24 of the brake dust particle filter 20.

[0046] The attachment of the brake dust particle filter 20 can be realized by means of at least one fastener 38, in particular a screw, on an immobile component, in particular the cover plate 16. The housing 24 in this context, depending on the application situation, can be of a one-part or multi-part configuration in order to meet special mounting or servicing requirements. In case of a multi-part embodiment of the housing 24, the connection of the partial housings is realized by means of the fasteners 38 or by specially provided fasteners (not illustrated) between the partial housings. In an advantageous manner, the partial housings are arranged movably relative to each other, in particular foldable, in order to ensure access to the housing interior 32 (see FIG. 4) in the mounting and/or servicing situation, for example, for exchange of the filter medium, without demounting the brake dust particle filter 20.

[0047] The housing 24 of the brake dust particle filter 20 comprises a circumferential side 28 which serves for forming filter cutouts (not shown). At the side of the housing 24 which is facing the housing interior 32 (see FIG. 4), a filter medium (not illustrated) is located for absorbing brake dust particles from the air flowing through the assembly 10 in the operation situation. During the operation, the brake dust in the form of particles is picked up by the air surrounding the brake disc 12 and entrained by it. In this context, the air flows first through the filter medium and subsequently through the filter cutout at the circumferential side 28 of the housing 24. In this context, the brake dust particles are separated in the filter medium.

[0048] FIG. 7 shows the side view of a further embodiment of an assembly 10 wherein a brake dust particle filter 20 comprises a guide 30 which extends axially outwardly in the mounted state in the direction of the wheel rim spokes 40 (compare FIG. 4). With such an embodiment of the guide 30, the introduced fluid being discharged can be directed with a rinsing effect onto the wheel rim spokes 40 in order to clean off contaminations and deposits from the latter.

[0049] In reviewing all of the Figures of the drawing, a brake dust particle filter 20 as well as an assembly 10 with a brake disc 12, a brake caliper 14, in particular a cover plate 16, and the brake dust particle filter 20 is disclosed. The brake dust particle filter 20 in the mounted state is arranged in the bottom region of the brake disc 12 and comprises at its lowermost position U at the housing 24 a drainage cutout 22 in the form of an opening which serves for draining fluids from the housing 24 of the brake dust particle filter 20. The brake dust particle filter 20 can comprise in this context a guide 30 that guides the exiting fluid away from the brake dust particle filter 20 in the direction toward the wheel rim inner edge 34 and/or in the direction toward the wheel rim spokes 40.

LIST OF REFERENCE CHARACTERS

[0050] 10 assembly [0051] 12 brake disc [0052] 14 brake caliper [0053] 16 cover plate [0054] 18 wheel rim [0055] 20 brake dust particle filter [0056] 22 axial drainage cutout [0057] 24 housing [0058] 26 housing bottom [0059] 28 radial circumferential side of the housing 24 [0060] 30 guide [0061] 32 housing interior [0062] 34 wheel rim inner edge [0063] 36 wheel rim well [0064] 38 fastener [0065] 40 wheel rim spokes [0066] U lowermost point [0067] O uppermost point [0068] H horizontal and rotation axis of the brake disc 12 [0069] α incline of the guide 30 relative to the horizontal H [0070] β incline of the housing bottom 26