WO2009003659A2 - Disque de frein à ailettes de refroidissement - Google Patents

Disque de frein à ailettes de refroidissement Download PDF

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Publication number
WO2009003659A2
WO2009003659A2 PCT/EP2008/005297 EP2008005297W WO2009003659A2 WO 2009003659 A2 WO2009003659 A2 WO 2009003659A2 EP 2008005297 W EP2008005297 W EP 2008005297W WO 2009003659 A2 WO2009003659 A2 WO 2009003659A2
Authority
WO
WIPO (PCT)
Prior art keywords
cooling fins
brake disc
radial
cooling
disc according
Prior art date
Application number
PCT/EP2008/005297
Other languages
German (de)
English (en)
Other versions
WO2009003659A3 (fr
Inventor
Heinz-Jürgen GASPERS
Thomas B. Merkel
Original Assignee
Faiveley Transport Witten Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Faiveley Transport Witten Gmbh filed Critical Faiveley Transport Witten Gmbh
Publication of WO2009003659A2 publication Critical patent/WO2009003659A2/fr
Publication of WO2009003659A3 publication Critical patent/WO2009003659A3/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D2065/13—Parts or details of discs or drums
    • F16D2065/1304—Structure
    • F16D2065/1328—Structure internal cavities, e.g. cooling channels

Definitions

  • the present invention relates to a brake disk which has a plane-side friction ring part which has an outer edge and an inner edge and on which radial elongate cooling ribs are arranged, between which run ventilation channels.
  • Brake discs of the type mentioned are known to the skilled worker and familiar.
  • the brake discs can be made in one piece or two parts.
  • Two-piece brake disks comprise a first disk half and a second disk half, which are each formed in a semicircular or semi-annular manner, and are brought together in a parting plane in order to form a ready-to-use brake disk.
  • the brake disk can be arranged due to their split design on shafts, which does not allow an axial structure of the brake discs due to the geometric configuration of the shaft.
  • the internal ventilation of the brake discs is made possible by comprising a first friction ring part and a second friction ring part, and the friction ring parts are arranged plane-parallel to each other with a certain distance. Between the two friction ring parts a plurality of radial cooling fins are arranged, between which in turn run ventilation channels. Through the brake disk rotation cooling air is through the Ventilation channels passed to prevent excessive heating of the entire brake disc due to implementation of the braking power.
  • DE 7 536 273 U discloses, for example, an internally ventilated brake disk which has two friction disks.
  • the two friction discs are connected by a plurality of radially extending ribs which extend in the axial direction of the brake disc between the friction discs.
  • the ribs can be tapered radially outward in their cross section. Between the ribs radially extending ventilation channels are formed.
  • DE 4 436 653 A1 discloses radial cooling fins, which are located in the inner region, that is, on the inner edge of the friction ring parts. Between the radial cooling fins and the outer edge or outer region of the friction ring parts also further cooling fins are arranged.
  • cooling fins are arranged at a distance from the radial cooling fins between the radial cooling ribs and the outer edge of the friction ring part.
  • the brake disc according to the invention thus has two types of cooling ribs.
  • radial cooling ribs which extend radially from the outer edge in the direction of the inner edge.
  • These previously known radial cooling fins are formed shortened.
  • These shortened radial fins are combined according to the invention with cooling fins by these fins are arranged in the interior.
  • the cooling fins thus represent a kind of interruption of the radial ribs.
  • the core idea of the invention is to provide ventilation channels which are delimited both by radial cooling ribs and by cooling ribs which are positioned in the interior of friction ring parts.
  • the advantage of the invention is that a reduction of the inlet flow losses and the material stresses is achieved by such an arrangement.
  • a reduction of the ventilation power loss is also achieved.
  • the cooling fins are plane-parallel and / or ellipsoidal and / or wing profile-like cooling fins.
  • An advantageous embodiment of the invention provides that the cooling ribs are arranged relative to the radial cooling ribs in angular positions between 0 ° and 90 °. This different angle setting of the cooling fins is used to ensure a more uniform ventilation of the rib channels.
  • the invention also provides that brake disk cams are arranged between the cooling fins.
  • These cams may be in the form of connecting cams, for example, make the connection between the brake disc and a disc color.
  • the cams protrude radially out of the brake disc.
  • the shape of the cam interacts with the arrangement and shape of the cooling fins in such a way that the operational safety is ensured even for high operating loads due to impact stress and thermal loads.
  • more than one cooling fin is located between the cams.
  • at least two radial elongated cooling ribs and at least two cooling ribs may have different lengths to one another.
  • cooling fins are arranged offset from each other and the radial shorten elongated cooling fins in the direction of rotation of the brake disc to the respective cam out. It is also provided in the context of the invention that the cooling fins are arranged arcuately, wherein the immediately adjacent to the cams arranged cooling fins have the greatest distance to the inner edge.
  • Practicable variants of the invention also provide that the radial elongated cooling fins taper inwardly in their cross section and the radial elongated cooling fins and the cooling fins are curved.
  • FIG. 1 shows a schematic representation of a plan view of a section of a friction ring part, the view showing the arrangement of the elongate radial cooling ribs and the cooling ribs in the form of ellipsoidal cooling ribs, as well as the brake disk cam.
  • the brake disk shown in Figure 1 is provided with the reference numeral 100.
  • This consists in principle of two plane-side friction ring parts, wherein in FIG. 1 only one friction ring part 10 is shown.
  • the friction ring parts form the friction surfaces of the brake disk 100.
  • the friction ring part 10 is delimited by an inner edge 11 and an outer edge 12.
  • the radial elongate cooling ribs 13, 14, 15 contribute to the mechanical connection between the friction ring part 10 and a second, not shown, friction ring part of the brake disc.
  • ellipsoidal cooling fins 20, 21 spaced from the radial elongated cooling fins 13, 14, 15 are arranged. Between the radial elongated cooling fins 13, 14, 15 and between the radial elongated cooling fins 13, 14, 15 and the ellipsoidal cooling fins 20, 21 are ventilation channels 16, 17, 18, 19.
  • the ellipsoidal cooling fins 20, 21 are relative to the radial elongated cooling fins 13, 14, 15 arranged in different angular settings. Both the radial elongate cooling ribs 13, 14, 15 and the ellipsoidal cooling ribs 20, 21 have different lengths relative to one another and are surrounded by transition radii 26, 27. In addition, the ellipsoidal cooling fins 20, 21 are arranged offset from each other.
  • the friction ring part 10 has cams 22, 23, 24, between which the ellipsoidal cooling fins 20, 21 are arranged.
  • the cams 22, 23, 24 are located between the radial elongated cooling fins 13, 14, 15 and the outer edge 11, wherein the cams 22, 23, 24 spaced from the radial elongated cooling fins 13, 14, 15 are arranged.
  • the ellipsoidal cooling fins 20, 21 are arranged in an arcuate manner between the cams 22, 23, 24, wherein the ellipsoidal cooling fins 20, 21 arranged directly next to the cams 22, 23, 24 have the greatest distance from the inner edge 12 ,
  • the radial elongated cooling ribs 13, 14, 15 shorten in the direction of rotation of the brake disc 100 to the respective cams 22, 23, 24.
  • the cams have receiving bores 25 as well as radial and tangential transition radii 28, 29.
  • the present invention is not limited in its execution to the above-mentioned, preferred embodiment. On the contrary, a number of variants are conceivable which make use of the illustrated solution even with fundamentally different designs.
  • the ellipsoidal cooling fins 20, 21 may have another than the arcuate arrangement shown in Figure 1.
  • the elongated radial cooling fins 13, 14, 15 above the cams 22, 23, 24 have different lengths.
  • the shape of the radial elongated cooling fins 13, 14, 15 and the ellipsoidal cooling fins 20, 21 experience different design.
  • the radial elongate cooling fins 13, 14, 15 may taper inwardly in their cross-section and, like the ellipsoidal cooling fins 20, 21, may be curved.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un disque de frein (100) comprenant une bague de friction plane (10) présentant un bord extérieur (11) et un bord intérieur (12), et sur laquelle sont disposées des ailettes de refroidissement longitudinales radiales (13, 14, 15) entre lesquelles s'étendent des canaux de ventilation (16, 17). En vue d'améliorer le rapport puissance de refroidissement/puissance dissipée, l'invention est caractérisée en ce qu'il est prévu, entre les ailettes de refroidissement longitudinales radiales (13, 14, 15) et le bord intérieur (12), des ailettes de refroidissement (20, 21) qui sont montées à distance des ailettes de refroidissement longitudinales radiales (13, 14, 15).
PCT/EP2008/005297 2007-07-03 2008-06-27 Disque de frein à ailettes de refroidissement WO2009003659A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200720009345 DE202007009345U1 (de) 2007-07-03 2007-07-03 Bremsscheibe mit Kühlrippen
DE202007009345.4 2007-07-03

Publications (2)

Publication Number Publication Date
WO2009003659A2 true WO2009003659A2 (fr) 2009-01-08
WO2009003659A3 WO2009003659A3 (fr) 2009-02-26

Family

ID=38460912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/005297 WO2009003659A2 (fr) 2007-07-03 2008-06-27 Disque de frein à ailettes de refroidissement

Country Status (2)

Country Link
DE (1) DE202007009345U1 (fr)
WO (1) WO2009003659A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8770355B2 (en) 2007-09-28 2014-07-08 Faiveley Transport Witten Gmbh Brake disk
US9587690B2 (en) 2013-04-12 2017-03-07 Wabtec Holding Corp. Brake disc assembly for a wheel
EP2462359B1 (fr) 2009-08-07 2017-05-10 Freni Brembo S.p.A. Disque de frein ventilé
US10619689B2 (en) 2016-12-12 2020-04-14 Westinghouse Air Brake Technologies Corporation Ventilated brake disc
FR3136817A1 (fr) * 2022-06-20 2023-12-22 Renault S.A.S. Disque de frein ventilé

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331683A1 (de) * 1992-09-17 1994-03-24 Toyota Motor Co Ltd Scheibenbremsen-Rotor
DE4436653A1 (de) * 1993-10-18 1995-04-20 Brembo Spa Bremsscheibe
US20010002638A1 (en) * 1999-12-07 2001-06-07 Akebono Brake Industry Co., Ltd Ventilated disc
US20040188196A1 (en) * 2001-05-10 2004-09-30 Gavin Stephen Patrick Self-ventilating disc brake rotor
WO2004102029A1 (fr) * 2003-05-15 2004-11-25 Freni Brembo, S.P.A. Bande de freinage de disque ventile pour freins a disques
WO2005052403A1 (fr) * 2003-11-28 2005-06-09 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Disque a frein monobloc

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331683A1 (de) * 1992-09-17 1994-03-24 Toyota Motor Co Ltd Scheibenbremsen-Rotor
DE4436653A1 (de) * 1993-10-18 1995-04-20 Brembo Spa Bremsscheibe
US20010002638A1 (en) * 1999-12-07 2001-06-07 Akebono Brake Industry Co., Ltd Ventilated disc
US20040188196A1 (en) * 2001-05-10 2004-09-30 Gavin Stephen Patrick Self-ventilating disc brake rotor
WO2004102029A1 (fr) * 2003-05-15 2004-11-25 Freni Brembo, S.P.A. Bande de freinage de disque ventile pour freins a disques
WO2005052403A1 (fr) * 2003-11-28 2005-06-09 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Disque a frein monobloc

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8770355B2 (en) 2007-09-28 2014-07-08 Faiveley Transport Witten Gmbh Brake disk
EP2462359B1 (fr) 2009-08-07 2017-05-10 Freni Brembo S.p.A. Disque de frein ventilé
US9587690B2 (en) 2013-04-12 2017-03-07 Wabtec Holding Corp. Brake disc assembly for a wheel
US10619689B2 (en) 2016-12-12 2020-04-14 Westinghouse Air Brake Technologies Corporation Ventilated brake disc
FR3136817A1 (fr) * 2022-06-20 2023-12-22 Renault S.A.S. Disque de frein ventilé
WO2023247190A1 (fr) * 2022-06-20 2023-12-28 Renault S.A.S Disque de frein ventilé

Also Published As

Publication number Publication date
WO2009003659A3 (fr) 2009-02-26
DE202007009345U1 (de) 2007-08-30

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