WO2011085749A1 - Brake disk - Google Patents

Brake disk Download PDF

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Publication number
WO2011085749A1
WO2011085749A1 PCT/EP2010/007201 EP2010007201W WO2011085749A1 WO 2011085749 A1 WO2011085749 A1 WO 2011085749A1 EP 2010007201 W EP2010007201 W EP 2010007201W WO 2011085749 A1 WO2011085749 A1 WO 2011085749A1
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WO
WIPO (PCT)
Prior art keywords
friction ring
openings
brake
brake disc
brake disk
Prior art date
Application number
PCT/EP2010/007201
Other languages
German (de)
French (fr)
Inventor
Oliver Lembach
Ralph Mayer
Original Assignee
Daimler Ag
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 Daimler Ag filed Critical Daimler Ag
Publication of WO2011085749A1 publication Critical patent/WO2011085749A1/en

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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
    • F16D65/128—Discs; Drums for disc brakes characterised by means for cooling
    • 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
    • F16D65/78—Features relating to cooling
    • F16D65/84—Features relating to cooling for disc brakes
    • F16D65/847—Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
    • 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
    • F16D2065/1316—Structure radially segmented
    • 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 invention relates to a brake disk for a motor vehicle according to the preamble of patent claim 1.
  • Brake disks are known from the prior art, the brake disk pot having a plurality of radially extending passage openings in its outer wall. These are in particular one-piece brake discs
  • Gray cast iron The openings in the shell wall usually serve to save weight and to position a core in the mold.
  • Brake disk can be found in DE 42 33 424 A1.
  • one-piece cast brake discs are used less and less in modern motor vehicles.
  • composite brake disks are increasingly used instead, which combine a friction ring of a tribologically particularly resilient material, such as gray cast iron, with a brake disk pot made of a particularly lightweight material, such as aluminum or magnesium.
  • Friction rings are also often designed as internally ventilated friction rings, which have two friction ring halves between which a system of air ducts for
  • Ventilation and cooling of the friction ring and thus to remove the heat generated during braking frictional heat extends.
  • the cooling of the friction ring when using alternative materials instead of gray cast iron, especially in friction rings of ceramic materials.
  • the present invention is therefore an object of the invention to provide a brake disc of the type mentioned, which is particularly good coolable in operation.
  • Such a brake disc for a disc brake of a motor vehicle, in particular a passenger car, comprises a brake disc hub and a friction ring.
  • a brake disc hub In a jacket wall of the brake disk hub, a plurality of radially extending passage openings is provided.
  • the friction ring likewise has a plurality with respect to a rotational symmetry axis of the brake disk
  • Each group of openings of the friction ring is associated with a passage opening of the jacket wall, which is arranged at least substantially in line with the openings of the respective group of the friction ring.
  • Hub area improved.
  • the air does not accumulate in the hub area, but is discharged through the brake disc hub again.
  • the passage openings of the brake disk hub are round and / or oval and / or formed as elongated holes.
  • the concrete design of the holes depends on the rib or knob arrangement in the cooling channels of the friction ring, perforation holes in the friction ring of the
  • the brake disc is designed as a composite brake disc, wherein the brake disc hub is made of a different material than the friction ring.
  • the brake disc hub is made of a different material than the friction ring.
  • particularly lightweight brake discs can be obtained, since the brake disc hub, in contrast to the friction ring does not have to consist of tribologically highly stressed materials.
  • Cast iron can be used, for example, deep-drawn aluminum or magnesium sheets, so as to obtain very lightweight brake discs with still very good strength.
  • the friction ring consists of two axially spaced friction ring halves, between which at least one ventilation channel is formed, in which open the openings of the friction ring.
  • Such a so-called internally ventilated brake disc allows a particularly good cooling of the friction ring. Air can flow through the cooling channels of the friction ring in the friction ring, ie between the friction ring halves and exit through the openings of the friction ring again. Through the passage openings of the jacket wall of the brake disk hub, the outflowing air finally reaches the hub region of the brake disk and can flow from there into the environment.
  • Such a brake disc thus achieves a particularly high air mass flow rate and thus a particularly efficient cooling of the friction ring.
  • Fig. 2 is a sectional view through an embodiment
  • FIG. 3 shows a plan view of the brake disk according to FIG. 2;
  • Fig. 4 is a perspective view of the brake disk hub for the
  • Fig. 5 is a perspective view of the friction ring according to the brake disc
  • Brake disc is designed as a one-piece cast iron component. Friction ring 12 and Disc brake cup 14 of the brake disc 10 are thus made in one piece. in the
  • Brake disk chamber 14 are provided radially extending openings 16, can flow through the air in the hub portion 18 of the brake disk 10.
  • the friction ring 12 also has radially extending cooling channels 20.
  • FIG. 2 shows a section through a brake disk according to the invention designated as a whole by 22.
  • the brake disk 22 has a two-part design and comprises a separate friction ring 24 and a brake disk cup 26 separated therefrom.
  • the friction ring 24 is embodied as an internally ventilated friction ring and consists of two friction ring halves 27, 28 which are connected to one another via knobs 30 are. Between the knobs 30 cooling channels 32 are formed.
  • the cooling channels 32 communicate with the surfaces 36, 38 of the friction ring halves 27, 28 via openings 34 extending in the axial direction.
  • the friction ring 24 is positively connected to the brake disk hub 26.
  • the brake disk cup 26 has radially extending passage openings 42 in its casing wall 44.
  • Other axial openings 46 which can be seen in the plan view in Fig. 3, serve to fix the brake disc 22 to the hub of
  • the bores 34 of the friction ring 24 are combined to form groups 48, the bores 34 of each of which run on a spiral path toward the center 50 of the brake disk. Between two respective groups 48, a web 52 separating the friction ring halves 27, 28 is provided.
  • Each opening 42 in the jacket wall 44 of the brake disk cup 26 is assigned a group 48 of openings 34 of the friction ring 24. While driving the

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

Abstract

The invention relates to a brake disk (22) for a disk brake of a motor vehicle, in particular a passenger car, comprising a brake disk hub (26) and a friction ring (24), wherein a lateral wall (44) of the brake disk hub (26) comprises a plurality of radially extending passages (42), wherein the friction ring (24) comprises a plurality of groups (48) of openings (34) extending in the axial direction, said groups being arranged rotationally symmetrically around an axis (50) of rotational symmetry of the brake disk (22), wherein a passage (42) of the lateral wall (44) is associated with each group (48) of openings (34) of the friction ring (24), said passage opening being arranged at least substantially in a line with the openings (34) of the respective group (48) of the friction ring (24).

Description

Bremsscheibe  brake disc
Die Erfindung betrifft eine Bremsscheibe für einen Kraftwagen nach dem Oberbegriff von Patentanspruch 1. The invention relates to a brake disk for a motor vehicle according to the preamble of patent claim 1.
Aus dem Stand der Technik sind Bremsscheiben bekannt, deren Bremsscheibentopf eine Mehrzahl von radial verlaufenden Durchgangsöffnungen in seiner Mantelwandung aufweist. Hierbei handelt es sich insbesondere um einteilige Bremsscheiben aus Brake disks are known from the prior art, the brake disk pot having a plurality of radially extending passage openings in its outer wall. These are in particular one-piece brake discs
Grauguss. Die Öffnungen in der Mantelwand dienen in der Regel zur Gewichtseinsparung und zur Positionierung eines Kerns in der Gießform. Ein Beispiel einer solchen Gray cast iron. The openings in the shell wall usually serve to save weight and to position a core in the mold. An example of such
Bremsscheibe ist der DE 42 33 424 A1 zu entnehmen. Brake disk can be found in DE 42 33 424 A1.
Einteilige gegossene Bremsscheiben finden in modernen Kraftwagen jedoch immer weniger Verwendung. Aus Leichtbauerwägungen werden stattdessen zunehmend Verbundbremsscheiben eingesetzt, die einen Reibring aus einem tribologisch besonders belastbaren Material, wie beispielsweise Grauguss, mit einem Bremsscheibentopf aus einem besonders leichten Material, wie Aluminium oder Magnesium, kombinieren. However, one-piece cast brake discs are used less and less in modern motor vehicles. For lightweight construction considerations, composite brake disks are increasingly used instead, which combine a friction ring of a tribologically particularly resilient material, such as gray cast iron, with a brake disk pot made of a particularly lightweight material, such as aluminum or magnesium.
Reibringe sind zudem oftmals als innenbelüftete Reibringe ausgestaltet, welche zwei Reibringhälften aufweisen, zwischen denen sich ein System von Luftkanälen zur Friction rings are also often designed as internally ventilated friction rings, which have two friction ring halves between which a system of air ducts for
Belüftung und Kühlung des Reibrings und damit zur Abfuhr der in Bremsbetrieb entstehenden Reibungswärme erstreckt. Von besonderer Bedeutung ist die Kühlung des Reibringes bei der Verwendung alternativer Materialien anstelle von Grauguss, insbesondere bei Reibringen aus keramischen Materialien. Ventilation and cooling of the friction ring and thus to remove the heat generated during braking frictional heat extends. Of particular importance is the cooling of the friction ring when using alternative materials instead of gray cast iron, especially in friction rings of ceramic materials.
Der vorliegenden Erfindung liegt somit die Aufgabe zugrunde, eine Bremsscheibe der eingangs genannten Art bereitzustellen, welche im Betrieb besonders gut kühlbar ist. The present invention is therefore an object of the invention to provide a brake disc of the type mentioned, which is particularly good coolable in operation.
Diese Aufgabe wird durch eine Bremsscheibe mit den Merkmalen des Patentanspruchs 1 gelöst. Eine solche Bremsscheibe für eine Scheibenbremse eines Kraftwagens, insbesondere eines Personenkraftwagens, umfasst einen Bremsscheibentopf und einen Reibring. In einer Mantelwandung des Bremsscheibentopfes ist eine Mehrzahl von radial verlaufenden Durchgangsöffnungen vorgesehen. Erfindungsgemäß besitzt der Reibring ebenfalls eine Mehrzahl bezüglich einer Rotationssymmetrieachse der Bremsscheibe This object is achieved by a brake disc having the features of patent claim 1. Such a brake disc for a disc brake of a motor vehicle, in particular a passenger car, comprises a brake disc hub and a friction ring. In a jacket wall of the brake disk hub, a plurality of radially extending passage openings is provided. According to the invention, the friction ring likewise has a plurality with respect to a rotational symmetry axis of the brake disk
rotationssymmetrisch angeordneter Gruppen von jeweils in axialer Richtung verlaufender Öffnungen. Jeder Gruppe von Öffnungen des Reibrings ist eine Durchgangsöffnung der Mantelwandung zugeordnet, die zumindest im Wesentlichen in einer Linie mit den Öffnungen der jeweiligen Gruppe des Reibrings angeordnet ist. rotationally symmetrically arranged groups of each extending in the axial direction openings. Each group of openings of the friction ring is associated with a passage opening of the jacket wall, which is arranged at least substantially in line with the openings of the respective group of the friction ring.
Durch die Kombination von Öffnungen im Bremsscheibentopf und im Reibring sowie durch die spezielle Anordnung der Gruppen von Öffnungen des Reibrings relativ zu den Öffnungen der Mantelwandung des Bremsscheibentopfes kann eine besonders gute Durchströmung der Bremsscheibe mit Luft erzielt werden. Insbesondere wird so ein besonders guter Luftaustausch zwischen der Bremsscheibenaußenseite und dem The combination of openings in the brake disk chamber and in the friction ring and by the special arrangement of the groups of openings of the friction ring relative to the openings of the jacket wall of the brake disk hub, a particularly good flow through the brake disc can be achieved with air. In particular, a particularly good air exchange between the brake disc outside and the
Nabenbereich verbessert. Im Gegensatz zu bekannten Bremsscheiben staut sich die Luft nicht im Nabenbereich, sondern wird durch den Bremsscheibentopf wieder abgeführt. Durch die Zuordnung der Gruppen von Öffnungen im Reibring zu den Öffnungen in der Mantelwandung wird die Strömung aus den Kühlkanälen des Reibrings, die mit den Öffnungen des Reibrings in Verbindung stehen, zum Nabenbereich weiter optimiert. Hub area improved. In contrast to known brake discs, the air does not accumulate in the hub area, but is discharged through the brake disc hub again. By assigning the groups of openings in the friction ring to the openings in the jacket wall, the flow from the cooling channels of the friction ring, which are in communication with the openings of the friction ring, further optimized to the hub region.
In einer bevorzugten Ausführungsform der Erfindung sind die Durchgangsöffnungen des Bremsscheibentopfes rund und/oder oval und/oder als Langlöcher ausgebildet. Die konkrete Gestaltung der Löcher hängt dabei von der Rippen- bzw. Noppenanordnung in den Kühlkanälen des Reibrings, von Perforationsbohrungen im Reibring, von der In a preferred embodiment of the invention, the passage openings of the brake disk hub are round and / or oval and / or formed as elongated holes. The concrete design of the holes depends on the rib or knob arrangement in the cooling channels of the friction ring, perforation holes in the friction ring of the
Spannungsverteilung in der Bremsscheibe, vom Hauptwärmeeintrag, der durch die Lage und Größe des Druckschwerpunkts des Belagaufdrückens im Bremsbetrieb, sowie von der Anbindungsgeometrie zwischen Reibring und Bremsscheibentopf ab. Weitere Kriterien zur Geometriebestimmung der Öffnungen sind die Strömungsverhältnisse um die Bremsscheibe, der Bedarf an Luftmassendurchsatz zur Kühlung der Bremsscheibe sowie die Festigkeit der Bremsscheibe insgesamt. Distribution of stress in the brake disk, from the main heat input, which depends on the position and size of the center of pressure of the lining pressing in braking mode, as well as on the connection geometry between the friction ring and the brake disk cup. Further criteria for geometry determination of the openings are the flow conditions around the brake disc, the demand for air mass flow rate for cooling the brake disc and the strength of the brake disc as a whole.
In weiterer Ausgestaltung der Erfindung ist die Bremsscheibe als Verbundbremsscheibe ausgebildet, bei welcher der Bremsscheibentopf aus einem anderen Material besteht als der Reibring. Hierdurch können besonders leichte Bremsscheiben erhalten werden, da der Bremsscheibentopf im Gegensatz zum Reibring nicht aus tribologisch hoch beanspruchbaren Materialien bestehen muss. Anstelle von Bremsscheibentöpfen aus Guss können beispielsweise tiefgezogene Aluminium- oder Magnesiumbleche verwendet werden, um so besonders leichte Bremsscheiben mit immer noch sehr guter Festigkeit zu erhalten. In a further embodiment of the invention, the brake disc is designed as a composite brake disc, wherein the brake disc hub is made of a different material than the friction ring. As a result, particularly lightweight brake discs can be obtained, since the brake disc hub, in contrast to the friction ring does not have to consist of tribologically highly stressed materials. Instead of brake disk pots Cast iron can be used, for example, deep-drawn aluminum or magnesium sheets, so as to obtain very lightweight brake discs with still very good strength.
Vorzugsweise besteht der Reibring aus zwei axial beabstandeten Reibringhälften, zwischen welchen wenigstens ein Belüftungskanal ausgebildet ist, in welchen die Öffnungen des Reibrings münden. Eine solche so genannte innenbelüftete Bremsscheibe ermöglicht eine besonders gute Kühlung des Reibrings. Luft kann durch die Kühlkanäle des Reibrings in den Reibring, also zwischen die Reibringhälften einströmen und durch die Öffnungen des Reibrings wieder austreten. Durch die Durchgangsöffnungen der Mantelwandung des Bremsscheibentopfes gelangt die ausströmende Luft schließlich in den Nabenbereich der Bremsscheibe und kann von dort in die Umgebung abströmen. Eine solche Bremsscheibe erreicht also einen besonders hohen Luftmassendurchsatz und damit eine besonders effiziente Kühlung des Reibrings. Preferably, the friction ring consists of two axially spaced friction ring halves, between which at least one ventilation channel is formed, in which open the openings of the friction ring. Such a so-called internally ventilated brake disc allows a particularly good cooling of the friction ring. Air can flow through the cooling channels of the friction ring in the friction ring, ie between the friction ring halves and exit through the openings of the friction ring again. Through the passage openings of the jacket wall of the brake disk hub, the outflowing air finally reaches the hub region of the brake disk and can flow from there into the environment. Such a brake disc thus achieves a particularly high air mass flow rate and thus a particularly efficient cooling of the friction ring.
Im Folgenden soll die Erfindung und ihre Ausführungsformen anhand der Zeichnungen näher erläutert werden. In the following, the invention and its embodiments will be explained in more detail with reference to the drawings.
Hierbei zeigen: Hereby show:
Fig. 1 eine Schnittdarstellung durch eine Bremsscheibe nach dem Stand der 1 is a sectional view through a brake disc according to the prior
Technik;  Technology;
Fig. 2 eine Schnittdarstellung durch ein Ausführungsbeispiel Fig. 2 is a sectional view through an embodiment
erfindungsgemäßen Bremsscheibe;  brake disk according to the invention;
Fig. 3 eine Draufsicht auf die Bremsscheibe gemäß Fig. 2; FIG. 3 shows a plan view of the brake disk according to FIG. 2; FIG.
Fig. 4 eine perspektivische Ansicht des Bremsscheibentopfes für die Fig. 4 is a perspective view of the brake disk hub for the
Bremsscheibe gemäß Fig. 2; und  Brake disc according to FIG. 2; and
Fig. 5 eine perspektivische Ansicht des Reibringes für die Bremsscheibe gemäß Fig. 5 is a perspective view of the friction ring according to the brake disc
Fig. 2.  Fig. 2.
Eine im Ganzen mit 10 bezeichnete, dem Stand der Technik entsprechende A designated as a whole with 10, the prior art
Bremsscheibe ist als einteiliges Graugussbauteil ausgeführt. Reibring 12 und Bremsscheibentopf 14 der Bremsscheibe 10 sind also einstückig ausgeführt. Im Brake disc is designed as a one-piece cast iron component. Friction ring 12 and Disc brake cup 14 of the brake disc 10 are thus made in one piece. in the
Bremsscheibentopf 14 sind radial verlaufende Öffnungen 16 vorgesehen, durch die Luft in den Nabenbereich 18 der Bremsscheibe 10 einströmen kann. Der Reibring 12 weist ebenfalls radial verlaufende Kühlkanäle 20 auf. Brake disk chamber 14 are provided radially extending openings 16, can flow through the air in the hub portion 18 of the brake disk 10. The friction ring 12 also has radially extending cooling channels 20.
Fig. 2 zeigt einen Schnitt durch eine im Ganzen mit 22 bezeichnete erfindungsgemäße Bremsscheibe. Im Gegensatz zur Bremsscheibe gemäß Fig. 1 ist die Bremsscheibe 22 zweistückig ausgebildet und umfasst einen separaten Reibring 24 und einen von diesem getrennten Bremsscheibentopf 26. Der Reibring 24 ist als innenbelüfteter Reibring ausgeführt und besteht aus zwei Reibringhälften 27, 28 die über Noppen 30 miteinander verbunden sind. Zwischen den Noppen 30 sind Kühlkanäle 32 ausgebildet. Über in axialer Richtung verlaufende Öffnungen 34 stehen die Kühlkanäle 32 mit den Oberflächen 36, 38 der Reibringhälften 27, 28 in Verbindung. Über einen Zahnkranz 40 ist der Reibring 24 formschlüssig mit dem Bremsscheibentopf 26 verbunden. FIG. 2 shows a section through a brake disk according to the invention designated as a whole by 22. In contrast to the brake disk according to FIG. 1, the brake disk 22 has a two-part design and comprises a separate friction ring 24 and a brake disk cup 26 separated therefrom. The friction ring 24 is embodied as an internally ventilated friction ring and consists of two friction ring halves 27, 28 which are connected to one another via knobs 30 are. Between the knobs 30 cooling channels 32 are formed. The cooling channels 32 communicate with the surfaces 36, 38 of the friction ring halves 27, 28 via openings 34 extending in the axial direction. About a sprocket 40, the friction ring 24 is positively connected to the brake disk hub 26.
Der Bremsscheibentopf 26 weist radial verlaufende Durchgangsöffnungen 42 in seiner Mantelwandung 44 auf. Weitere axiale Öffnungen 46, die in der Draufsicht in Fig. 3 erkennbar sind, dienen zum Fixieren der Bremsscheibe 22 an der Nabe des The brake disk cup 26 has radially extending passage openings 42 in its casing wall 44. Other axial openings 46, which can be seen in the plan view in Fig. 3, serve to fix the brake disc 22 to the hub of
zugeordneten Rades. Wie Fig. 3 erkennen lässt, sind die Bohrungen 34 des Reibrings 24 zu Gruppen 48 zusammengefasst, deren Bohrungen 34 jeweils auf einer Spiralbahn auf den Mittelpunkt 50 der Bremsscheibe zu verlaufen. Zwischen zwei jeweiligen Gruppen 48 ist ein die Reibringhälften 27, 28 trennender Steg 52 vorgesehen. assigned wheel. As can be seen in FIG. 3, the bores 34 of the friction ring 24 are combined to form groups 48, the bores 34 of each of which run on a spiral path toward the center 50 of the brake disk. Between two respective groups 48, a web 52 separating the friction ring halves 27, 28 is provided.
Jeder Öffnung 42 in der Mantelwandung 44 des Bremsscheibentopfes 26 ist dabei eine Gruppe 48 von Öffnungen 34 des Reibrings 24 zugeordnet. Im Fahrbetrieb des Each opening 42 in the jacket wall 44 of the brake disk cup 26 is assigned a group 48 of openings 34 of the friction ring 24. While driving the
Kraftwagens strömt Luft in die von den Stegen 52 begrenzten Kanäle zwischen den Lochgruppen 48 ein und tritt aus den Öffnungen 34 an die Oberflächen 36, 38 des Reibrings 24. Durch die Öffnungen 42 in der Mantelwandung 44 des Motor vehicle flows air into the limited by the webs 52 channels between the groups of holes 48 and exits the openings 34 to the surfaces 36, 38 of the friction ring 24. Through the openings 42 in the jacket wall 44 of the
Bremsscheibentopfes 26 tritt die Luft schließlich in den Nabenbereich 54 der Disc brake cup 26 finally enters the air in the hub portion 54 of the
Bremsscheibe ein und kann von dort abgeführt werden. Hierdurch wird insgesamt eine besonders gute Durchströmung der Bremsscheibe 22 mit Luft erzielt. Brake disc and can be removed from there. As a result, a particularly good flow through the brake disc 22 is achieved with air overall.

Claims

Patentansprüche  claims
Bremsscheibe (22) für eine Scheibenbremse eines Kraftwagens, insbesondere eines Personenkraftwagens, mit einem Bremsscheibentopf (26) und einem Reibring (24), wobei eine Mantelwandung (44) des Bremsscheibentopfes (26) eine Mehrzahl von radial verlaufender Durchgangsöffnungen (42) aufweist, Brake disc (22) for a disc brake of a motor vehicle, in particular a passenger car, with a brake disc hub (26) and a friction ring (24), wherein a jacket wall (44) of the brake disc hub (26) has a plurality of radially extending passage openings (42),
dadurch gekennzeichnet, dass  characterized in that
der Reibring (24) eine Mehrzahl bezüglich einer Rotationssymmetrieachse (50) der Bremsscheibe (22) rotationssymmetrisch angeordneter Gruppen (48) von jeweils in axialer Richtung verlaufender Öffnungen (34) aufweist, wobei jeder Gruppe (48) von Öffnungen (34) des Reibrings (24) eine Durchgangsöffnung (42) der  the friction ring (24) has a plurality of rotationally symmetrical groups (48) of axially rotatable openings (34) with respect to a rotational symmetry axis (50) of the brake disk (22), each group (48) of openings (34) of the friction ring (48) 24) has a passage opening (42) of the
Mantelwandung (44) zugeordnet ist, die zumindest im Wesentlichen in einer Linie mit den Öffnungen (34) der jeweiligen Gruppe (48) des Reibrings (24) angeordnet ist.  Mantle wall (44) is assigned, which is arranged at least substantially in line with the openings (34) of the respective group (48) of the friction ring (24).
Bremsscheibe nach Anspruch 1 , Brake disc according to claim 1,
dadurch gekennzeichnet, dass  characterized in that
die Durchgangsöffnungen (42) des Bremsscheibentopfes (26) rund und/oder oval und/oder als Langlöcher ausgebildet sind.  the passage openings (42) of the brake disk cup (26) are round and / or oval and / or formed as slots.
Bremsscheibe (22) nach einem der Ansprüche 1 oder 2, Brake disc (22) according to one of claims 1 or 2,
dadurch gekennzeichnet, dass  characterized in that
die Bremsscheibe (22) als eine Verbundbremsscheibe ausgebildet ist, bei welcher der Bremsscheibentopf (26) aus einem anderen Material besteht als der Reibring (24).  the brake disc (22) is designed as a composite brake disc, wherein the brake disc hub (26) consists of a different material than the friction ring (24).
4. Bremsscheibe (22) nach einem der Ansprüche 1 bis 3, 4. Brake disc (22) according to one of claims 1 to 3,
dadurch gekennzeichnet, dass der Reibring (24) aus zwei axial beabstandeten Reibringhälften (27, 28) besteht, zwischen welchen wenigstens ein Belüftungskanal (32) ausgebildet ist, in welchen die Öffnungen (34) des Reibrings (24) münden. characterized in that the friction ring (24) consists of two axially spaced friction ring halves (27, 28), between which at least one ventilation channel (32) is formed, into which open the openings (34) of the friction ring (24).
PCT/EP2010/007201 2010-01-18 2010-11-27 Brake disk WO2011085749A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010004855A DE102010004855A1 (en) 2010-01-18 2010-01-18 brake disc
DE102010004855.0 2010-01-18

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Publication Number Publication Date
WO2011085749A1 true WO2011085749A1 (en) 2011-07-21

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WO2013053432A1 (en) * 2011-10-15 2013-04-18 Daimler Ag Brake disc
WO2013072025A1 (en) * 2011-11-19 2013-05-23 Daimler Ag Slide tool and brake disk

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WO2013053432A1 (en) * 2011-10-15 2013-04-18 Daimler Ag Brake disc
CN103890436A (en) * 2011-10-15 2014-06-25 戴姆勒股份公司 Brake disc
US9441688B2 (en) 2011-10-15 2016-09-13 Daimler Ag Brake disc
KR101732340B1 (en) 2011-10-15 2017-05-04 다임러 아게 Brake disc
CN103890436B (en) * 2011-10-15 2018-02-23 戴姆勒股份公司 Brake disc
WO2013072025A1 (en) * 2011-11-19 2013-05-23 Daimler Ag Slide tool and brake disk
US20140298637A1 (en) * 2011-11-19 2014-10-09 Daimler Ag Slide tool and brake disk
JP2014533812A (en) * 2011-11-19 2014-12-15 ダイムラー・アクチェンゲゼルシャフトＤａｉｍｌｅｒ ＡＧ Manufacturing method of automobile brake disc
KR101545107B1 (en) 2011-11-19 2015-08-17 다임러 아게 Slide tool and brake disk
US9193016B2 (en) 2011-11-19 2015-11-24 Daimler Ag Slide tool and brake disk

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