KR101799308B1 - Brake disc comprising a plurality of pillar - Google Patents

Brake disc comprising a plurality of pillar Download PDF

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Publication number
KR101799308B1
KR101799308B1 KR1020150142859A KR20150142859A KR101799308B1 KR 101799308 B1 KR101799308 B1 KR 101799308B1 KR 1020150142859 A KR1020150142859 A KR 1020150142859A KR 20150142859 A KR20150142859 A KR 20150142859A KR 101799308 B1 KR101799308 B1 KR 101799308B1
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KR
South Korea
Prior art keywords
stage
filler
pillars
pillar
cross
Prior art date
Application number
KR1020150142859A
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Korean (ko)
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KR20170043284A (en
Inventor
오병기
유창범
박현진
선향선
Original Assignee
서한산업(주)
한국프랜지공업 주식회사
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Priority to KR1020150142859A priority Critical patent/KR101799308B1/en
Publication of KR20170043284A publication Critical patent/KR20170043284A/en
Application granted granted Critical
Publication of KR101799308B1 publication Critical patent/KR101799308B1/en

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    • 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
    • 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
    • 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

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

Abstract

The present invention relates to a brake disk. A brake disk according to the present invention includes a hub connected to a wheel of a vehicle and a pair of plates extending radially from the hub and facing each other and spaced a predetermined distance in parallel, Wherein the plurality of pillar assemblies are spaced apart from each other by a predetermined angle in the circumferential direction about a rotation axis of the brake band, and each of the pillar assemblies is provided with a plurality of pillar assemblies At least five pillars are radially outwardly directed from the rotating shaft, and at least two pillars among the five pillars forming the pillars are disposed symmetrically with respect to each other.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a brake disk having a plurality of pillars,

The present invention relates to a brake disc having a plurality of pillars.

Generally, automobiles can travel at a high speed, and various systems for safety of driver and / or passenger are being developed. Among these stabilizers, the brake system is the most basic and important system that provides braking power to the moving vehicle.

The brake disk of the automobile brake system generally includes a hub connected to the wheels of the automobile and a brake band connected to the hub. Here, the brake band has a pair of plates facing each other.

In this case, the brake band converts the kinetic energy of the wheels of the automobile into heat energy by friction. At this time, the heat generated in the brake band by the heat energy may cause deformation or damage of the brake disk at a very high temperature. Accordingly, techniques have been developed to cause air flow between the plates of the brake band during braking to lower the temperature of the brake band by heat transfer.

6 shows a structure of a brake disc 10 disclosed in Korean Patent Laid-Open Publication No. 10-2012-0101449 (hereinafter referred to as "prior patent").

Referring to FIG. 6, the brake disk 10 has a hub 12 and a brake band connected to the hub 12. The hub 12 is connected to a wheel (not shown) by a fastening hole 14. Further, a plurality of pillars 16, 18 are provided between the plates of the brake band.

The filler of the prior patent is composed of three stages radially outward from the rotation axis of the brake disc 10 as shown in Fig. The first inner filler 16A and the second outer filler 16B are formed in an approximately oval shape and the outer third filler 18 has a deformed elliptical shape. According to the filler structure of the above-mentioned prior patent, the flow of air from the rotating shaft of the brake disk 10 toward the outside is caused during braking.

However, the filler structure of the prior patent is composed of three stages with a relatively small number of stages. Furthermore, the pillars at each stage have an elliptical shape and are disposed in the longitudinal direction radially outward from the rotational axis, A large flow resistance is generated. Accordingly, the filler structure of the prior patent greatly degrades the heat transfer efficiency, so that the heat generated in the brake band can not be effectively released.

1. Korean Patent Publication No. 10-2012-0101449

In order to solve the above-mentioned problems, the present invention has been made to solve the above problems, and it is an object of the present invention to provide a brake disk capable of effectively reducing heat generated in a brake band of a brake disk, And to provide the above-mentioned objects.

It is an object of the present invention to provide a hybrid vehicle having a hub connected to a wheel of a vehicle and a pair of plates extending radially from the hub and parallel to each other and spaced a predetermined distance apart from each other, And a plurality of pillar assemblies each having a plurality of pillar assemblies forming a ventilation channel, the plurality of pillar assemblies being spaced apart from each other by a predetermined angle in the circumferential direction about a rotation axis of the brake band, Wherein at least two pillars among the five pillars constituting the pillar assembly are arranged symmetrically with respect to each other, characterized in that at least two pillars among the five pillars constituting the pillar assembly are arranged symmetrically with respect to each other do.

At least one of the five pillars forming the filler aggregate may have an airfoil shape in cross section. For example, the filler of the first stage among the five stages of fillers forming the filler aggregate may be arranged such that its cross section has an airfoil shape and its cross section is narrowed outward in the radial direction from the rotation axis of the brake band have.

The pillars of the second stage and the pillars of the fourth stage among the five stages of pillars forming the filler aggregate may have elliptical cross sections and be arranged symmetrically with respect to each other. In this case, each of the second and fourth stages may be composed of a pair of pillars, and may be radially arranged symmetrically with respect to the center of the pillar assembly.

Further, the filler of the third stage among the fillers of the five stages forming the filler aggregate may have a rhombic or rectangular shape in cross section.

On the other hand, the filler of the fifth stage among the fillers of the five stages forming the filler aggregate may have a triangular shape in cross section. In this case, the fifth-stage filler may be disposed such that the cross-section thereof becomes narrower toward the inside in the radial direction toward the rotation axis of the brake band. The cross-sectional area of the fifth-stage filler may be larger than the cross-sectional area of other fillers.

It is another object of the present invention to provide a vehicle comprising a hub coupled to a wheel of a vehicle and a pair of plates extending radially from the hub and parallel to each other and spaced a predetermined distance apart from each other, And a plurality of pillar assemblies each having a plurality of pillar assemblies formed therebetween, the pillar assemblies being spaced from each other by a predetermined angle in the circumferential direction about the pivot axis of the pawl bands, Wherein the first end filler has an airfoil shape in cross section and is arranged such that its cross section is narrowed toward the outside in the radial direction from the rotation axis of the brake band And the pillars of the second stage and the pillars of the fourth stage are each composed of a pair of pillars, And the fifth-stage filler has a triangular cross-section, and the fifth-stage filler has a cross-sectional area that is different from that of the other fillers Sectional area and is arranged such that its cross section is narrowed inward radially toward the rotation axis of the brake band.

According to the brake disk of the present invention having the above-described configuration, at least five stages of pillars are provided between the plates of the brake band, thereby causing a relatively strong air flow between the pillars during braking of the vehicle, thereby improving heat transfer efficiency The heat generated in the brake band can be effectively released.

Further, according to the brake disk of the present invention, at least two or more pillars are disposed symmetrically with respect to each other, so that the brake disk can be mounted irrespective of the rotational direction of the vehicle wheel, so that the mounting time of the brake disk can be reduced, have.

In addition, according to the brake disk of the present invention, the first end filler positioned closest to the rotation axis of the brake band adopts the airfoil shape in which the cross section is narrowed toward the outside, so that during the braking, The inflow of air can be more easily generated through the space between the pillars, and the inflow amount of air can be increased.

Further, according to the brake disk of the present invention, the cross-sectional area of the five-stepped pillar located at the outermost periphery is made larger than the cross-sectional area of the other pillar, so that the natural frequency of the brake disk is increased to prevent the braking force from being weakened or damaged by resonance.

1 is a perspective view of a brake disc according to an embodiment of the present invention,
FIG. 2 is a plan view showing a filler in FIG. 1,
Figures 3 and 4 are enlarged views of a portion of the filler structure of Figure 2,
FIG. 5 is a graph comparing natural frequencies of a brake disk according to an embodiment of the present invention and a brake disk according to the prior art,
6 is a view showing a pillar structure of the brake disk of the prior patent.

Hereinafter, a brake disk according to the present invention will be described in detail with reference to the drawings.

1 is a perspective view of a brake disk 1000 according to an embodiment of the present invention.

Referring to FIG. 1, the brake disk 1000 includes a hub 100 connected to a wheel (not shown) of a vehicle, and a hub 100 extending radially from the hub 100, A plurality of filler assemblies having a pair of plates 310 and 330 disposed parallel to each other with a predetermined distance therebetween and forming a ventilation channel 302 between the pair of plates 310 and 330, and a brake band 300 having a pillar cluster 400 (see FIG. 2).

The hub 100 may have a fastening hole 110 to be coupled to a wheel (not shown) of an automobile. The hub 100 is coupled to the wheel of the automobile and rotates together with the wheel.

The brake band 300 is connected to the hub 100 at a substantially central opening thereof and has a shape radially extending in a radial direction at the hub 100. Since the brake band 300 serves to provide braking force by friction, it can be made of metal having suitable strength, for example, cast iron.

Specifically, the brake band 300 may include a pair of plates 310 and 330 facing each other and spaced apart from each other by a predetermined distance. The plate includes a first plate 310 and a second plate 330 and a plurality of pillar assemblies 400 described later are provided between the first plate 310 and the second plate 330.

The pillar assembly 400 connects the first plate 310 and the second plate 330 to each other and further forms a vent channel 302 between the first plate 310 and the second plate 330 . The air generated in the brake band 300 is effectively discharged to the outside by friction by inducing a flow of air through the ventilation channel 302 when the automobile brakes.

FIG. 2 shows a state in which the first plate 310 is removed from the view of FIG. 1 to show the filler aggregate 400, and the filler aggregate 400 is provided on the second plate 330.

Referring to FIG. 2, the pillar assembly 400 is spaced apart from the pivot axis of the brake band 300 by a predetermined angle in the circumferential direction. In other words, the plurality of pillar assemblies 400 are arranged in the circumferential direction about the rotation axis of the brake band 300.

At this time, in the brake disk 1000 according to the present invention, each of the pillar assemblies 400 includes at least five stages of pillars radially outward from the rotation axis of the brake band 300.

FIG. 3 is an enlarged view of the filler assembly 400 as a partial enlarged view of FIG.

Referring to FIG. 3, the pillar assembly 400 includes at least five stages of pillars radially outward from the rotation axis of the brake band 300. Here, the term " fifth stage " may be defined as the number of pillars disposed radially outward from the rotation axis of the brake band 300. [ The term "first stage", "second stage", "third stage", "fourth stage" and "fifth stage" to be described later refer to the number of stages of the filler, And the fifth stage pillar 450 means a pillar which is located farthest away from the rotation axis of the brake band 300. The pillar 450 is a pillar located nearest to the rotation axis of the brake band 300. [ Therefore, the lower the number of the pillars, the closer to the rotation axis of the brake band 300, and vice versa, the higher the number of the pillars is, the farther away from the rotation axis of the brake band 300.

In the present embodiment, the pillar assembly 400 includes at least five stages of pillars radially outward from the rotation axis of the brake band 300. By adopting a relatively larger number of filler structures than conventional brake discs, a turbulent flow can be generated between the filler structures during braking of the vehicle, resulting in more efficient air flow.

In this case, at least one of the five pillars forming the filler aggregate 400 may have a so-called 'air foil shape' in cross section. The airfoil shape can reduce the flow resistance by smoothly flowing the air therebetween.

For example, in the case of the present embodiment, the first end filler 410 among the five-step fillers forming the filler aggregate 400 may have an airfoil shape in cross section. In this case, the first end pillar 410 may be disposed such that the cross section of the first end pillar 410 is narrowed toward the outside in the radial direction from the rotation axis of the brake band 300, as shown in FIG. When the first end pillar 410 positioned closest to the rotation axis of the brake band 300 has the shape of an airfoil whose cross section is narrowed toward the outside, The inflow of air can be more easily generated through the space between the two-stage pillars 420, and the inflow amount of air can be increased.

On the other hand, in the present embodiment, at least two pillars among the five pillars forming the pillars aggregate 400 may be arranged symmetrically with respect to each other.

For example, among the five pillars forming the filler aggregate 400, the second pillars 420 and the fourth pillars 440 may have an elliptical cross section and may be disposed symmetrically with respect to each other . The second end pillar 420 and the fourth end pillar 440 are each composed of a pair of pillars 420A and 420B and 440A and 440B, Can be arranged symmetrically with respect to each other.

3, the pair of second stage pillars 420A and 420B and the pair of fourth stage pillars 440A and 440B are radially disposed about the substantially central portion of the pillar assembly 400 do.

Accordingly, the first end pillar 410 is disposed at a symmetrical position with respect to the fifth end pillar 450 described later, and the second end pillar 420 and the fourth end pillar 440 are disposed at symmetrical positions . The first end pillar 410 and the fifth end pillar 450 are disposed at mutually symmetrical positions, although their cross sectional shapes are different.

As a result, the filler aggregate 400 has a substantially symmetrical shape centering on the center portion of the second end pillar 420 and the fourth end pillar 440. Such a structure can smoothly induce the flow of air regardless of the direction of rotation of the vehicle wheel during braking. This will be described in detail later.
The spacing between the fillers 420 of the second stage forming a symmetry with respect to a virtual reference line (line indicated by a dotted line) in one filler aggregate 400 becomes narrower in the radial direction, The interval between the pillars 440 of the fourth stage forming the symmetry with respect to the imaginary reference line becomes wider in the radial direction,
The pair of second-stage pillars 420 and the pair of fourth-stage pillars 440 are radially arranged around the central portion of the pillar assembly 400, and the longitudinal direction of the pillars 420 at the second stage, The longitudinal directions of the pillars 440 are inclined with respect to the imaginary reference line to form a predetermined angle. The longitudinal direction of the pillars 420 of the second stage and the longitudinal direction of the pillars 440 of the fourth stage The longitudinal direction is directed in a direction different from the center direction of the hub.

Meanwhile, among the five pillars constituting the pillar assembly 400, the third pillars 430 are configured such that their cross-sections have a rhombic or rectangular shape. The third stage pillar 430 is disposed between the pair of second stage pillars 420A and 420B and the pair of fourth stage pillars 440A and 440B described above, Similarly, the third stage pillar 430 is disposed between any one pillar assembly 400A and the adjacent pillar assembly 400B.

Of the five pillars forming the pillar assembly 400, the fifth pillars 450 may have a triangular cross section. In this case, the cross-sectional area of the fifth-stage pillar 450 may be larger than the cross-sectional area of the first-stage pillar 410 to the fourth-stage pillar 440. As described above, when the cross-sectional area of the fifth-stage pillar 450 is maximized, the natural frequency of the brake band 300 can be increased, so that the braking force of the brake disc 1000 due to resonance can be reduced, .

The fifth-stage pillar 450 may be disposed such that its cross-section is narrower toward the inside in the radial direction toward the rotation axis of the brake band 300. [ As a result, the amount of air discharged from the brake band 300 can be increased, and the heat transfer efficiency can be improved.

Meanwhile, as shown in FIG. 3, the filler aggregate 400 is disposed at a distance of about 18 degrees in the circumferential direction about the neighboring filler aggregate and the baseline. Herein, the reference line may be defined as a virtual line extending in the radial direction perpendicular to the rotation axis of the brake band 300, and is shown passing through the center of the pillar assembly 400 as shown in FIG.

In this case, the angle of circumferential spacing of the two adjacent pillar assemblies 400 is approximately 18 degrees, so that approximately 20 pillar assemblies 400 are formed along the circumference of the brake band 300, .

4 is a view showing the flow of air passing between the pillar assemblies 400 in the pillar assembly 400 having the above-described structure. The flow of air is divided into a first flow, denoted by reference numeral 500 and a second flow, denoted by reference numeral 510, according to the rotational direction of the car wheel.

Referring to FIG. 4, the first flow 500 or the second flow 510 begins in a space between the first stage filler 410 and the second stage filler 420. In this case, since the first end pillar 410 positioned closest to the rotation axis of the brake band 300 has an airfoil shape whose cross section is narrowed toward the outside, the first end pillar 410, The inflow of air can be more easily generated through the space between the two-stage pillars 420, and the inflow amount of air can be increased.

As described above, by arranging the pair of second stage pillars 420A and 420B and the pair of fourth stage pillars 440A and 440B, the first flow 500 ) Or the second flow 510 is triggered. Accordingly, it is possible to smoothly induce the flow of air inside the filler aggregate 400 regardless of the rotational direction of the automobile wheel. This means that there is no limitation in the direction when connecting the brake disk 1000 according to the present embodiment to the wheels of the vehicle, thereby making it easier to perform the coupling process of the brake disk 1000. [

The first flow 500 or the second flow 510 may be formed between the fifth stage filler 450 and the fourth stage filler 440 or between the fourth stage filler 440 and the third stage filler 430 Through the space between them.
Here, the air flow area due to the gap between the first and second pillars 410 and 420 becomes narrower toward the air discharge direction, and the flow area of the air after passing between the second pillars 420 becomes narrower 400 and then the air flow area between the fourth pillars 410 and the fifth pillars and between the fourth pillars 440 and the third pillars 430 becomes narrow and when the air is discharged, Air may branch off in front of the fourth pillar 440 and may escape between the fifth pillar 450 and the fourth pillar 440 and a part of the air may escape between the third pillar 430 and the fourth pillar 440.

The present inventor has conducted an experiment for comparing the natural frequencies of the brake disk 1000 according to the present embodiment and the brake disk 100 according to the aforementioned prior art.

FIG. 5 is a diagram comparing natural frequencies of a brake disk according to an embodiment of the present invention and a brake disk of the prior art. FIG. 5A is a diagram for explaining the natural frequency of the brake disk according to an embodiment of the present invention, and FIG. 5B is a diagram for identifying the natural frequency of the brake disk of the prior patent.

5A and 5B, the natural frequency of the brake disk 1000 according to the present embodiment is calculated to be approximately 1896 Hz, and the natural frequency of the brake disk 100 of the prior patent is 1823 Hz It can be seen that the natural frequency is increased by about 4% or more. Therefore, it is possible to prevent the braking force from being weakened by resonance or the damage of the brake disc.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. You can do it. It is therefore to be understood that the modified embodiments are included in the technical scope of the present invention if they basically include elements of the claims of the present invention.

100 ... Hub
300 ... brake band
310 ... first plate
330 ... second plate
400 ... filler aggregate
1000 ... brake disc

Claims (10)

A hub connected to the wheels of the vehicle; And
A brake band extending radially from the hub and having a pair of plates facing each other and spaced a predetermined distance apart and having a plurality of pillar assemblies forming a vent channel between the pair of plates; Respectively,
Wherein the plurality of pillar assemblies are spaced from each other by a predetermined angle in a circumferential direction about a rotation axis of the brake band, and each of the pillar assemblies has at least five pillars extending radially outward from the rotation axis of the brake band,
The fifth-stage filler includes a first-stage filler positioned at the innermost position, a second-stage filler positioned outside the first stage, a third-stage filler positioned outside the second-stage filler, And a fifth-stage filler positioned outside the fourth-stage filler,
One of the pair of pillar assemblies extending in the radial direction from the center of the hub and being symmetrically symmetrical in the circumferential direction on the imaginary reference line passing through the center of the first pillar and the center of the fifth pillar disposed at the outermost pillar, Second, third and fourth pillars and a single first and second filler,
The interval between the pillars of the second stage forming a symmetry with respect to the imaginary reference line in one filler aggregate becomes narrower in the radial direction,
The spacing between the pillars of the fourth stage forming a symmetry with respect to the virtual reference line in one filler aggregate becomes wider toward the radial direction,
The pair of second-stage pillars and the pair of fourth-stage pillars are radially arranged around the central portion of the pillar aggregate,
The longitudinal direction of the pillars of the second stage and the longitudinal direction of the pillars of the fourth stage are inclined relative to the imaginary reference line to form a predetermined angle,
The longitudinal direction of the pillars of the second stage and the longitudinal direction of the pillars of the fourth stage are directed to directions different from the center direction of the hub,
The air flow area due to the gap between the first and second pillars becomes narrower toward the air discharge direction and the flow area of the air after passing between the second pillars becomes wider at the center of the filler aggregate,
The air flow area between the fourth filler and the fifth filler and between the fourth filler and the third filler becomes narrower,
Wherein when air is discharged, the air branches off in front of the fourth pillar to escape between the fifth pillar and the fourth pillar, and a part of the air escapes between the third pillar and the fourth pillar. The method according to claim 1,
Wherein at least one of the pillars of the five stages forming the filler aggregate has an airfoil shape in cross section. 3. The method of claim 2,
Among the five-stage fillers forming the filler aggregate
Wherein the first-stage filler has an airfoil-shaped cross section and is disposed such that its cross-section is narrower in the radial direction from the rotation axis of the brake band toward the outside. delete delete The method according to claim 1,
Among the five-stage fillers forming the filler aggregate
And the third-stage filler has a rhombic or rectangular cross-section. The method according to claim 1,
Among the five-stage fillers forming the filler aggregate
And the fifth-stage filler has a triangular cross-section. 8. The method of claim 7,
And the fifth-stage filler is arranged so that the cross section thereof becomes narrower toward the inside in the radial direction toward the rotation axis of the brake band. 8. The method of claim 7,
And the cross-sectional area of the fifth-stage filler is larger than the cross-sectional area of the other fillers. delete
KR1020150142859A 2015-10-13 2015-10-13 Brake disc comprising a plurality of pillar KR101799308B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150142859A KR101799308B1 (en) 2015-10-13 2015-10-13 Brake disc comprising a plurality of pillar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150142859A KR101799308B1 (en) 2015-10-13 2015-10-13 Brake disc comprising a plurality of pillar

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KR20170043284A KR20170043284A (en) 2017-04-21
KR101799308B1 true KR101799308B1 (en) 2017-11-20

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000274463A (en) * 1999-03-26 2000-10-03 Aisin Takaoka Ltd Disc rotor and disc brake device using the disc rotor
US20090272609A1 (en) * 2006-04-05 2009-11-05 Karthik Raju Nmn Venturi Nozzle Aerodynamic Vent Design
JP2011520080A (en) 2008-05-05 2011-07-14 フレニ ブレンボ エス．ピー．エー． Disc brake band for ventilated disc brakes

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000274463A (en) * 1999-03-26 2000-10-03 Aisin Takaoka Ltd Disc rotor and disc brake device using the disc rotor
US20090272609A1 (en) * 2006-04-05 2009-11-05 Karthik Raju Nmn Venturi Nozzle Aerodynamic Vent Design
JP2011520080A (en) 2008-05-05 2011-07-14 フレニ ブレンボ エス．ピー．エー． Disc brake band for ventilated disc brakes

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