GB1362801A - Aircraft disc brakes - Google Patents

Aircraft disc brakes

Info

Publication number
GB1362801A
GB1362801A GB4658271A GB4658271A GB1362801A GB 1362801 A GB1362801 A GB 1362801A GB 4658271 A GB4658271 A GB 4658271A GB 4658271 A GB4658271 A GB 4658271A GB 1362801 A GB1362801 A GB 1362801A
Authority
GB
United Kingdom
Prior art keywords
carbon
pads
rotor
iron
stator
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4658271A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dunlop Ltd
Original Assignee
Dunlop Ltd
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 Dunlop Ltd filed Critical Dunlop Ltd
Priority to GB4658271A priority Critical patent/GB1362801A/en
Priority to AU47351/72A priority patent/AU457552B2/en
Priority to FR7235343A priority patent/FR2158866A5/fr
Priority to US05/480,415 priority patent/US3951240A/en
Publication of GB1362801A publication Critical patent/GB1362801A/en
Expired legal-status Critical Current

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
    • F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
    • F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
    • F16D55/36—Brakes with a plurality of rotating discs all lying side by side
    • F16D55/40—Brakes with a plurality of rotating discs all lying side by side actuated by a fluid-pressure device arranged in or one the brake
    • 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
    • F16D65/122—Discs; Drums for disc brakes adapted for mounting of friction pads
    • 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
    • F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
    • F16D65/126—Discs; Drums for disc brakes characterised by the material used for the disc body the material being of low mechanical strength, e.g. carbon, beryllium; Torque transmitting members therefor
    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • F16D69/027—Compositions based on metals or inorganic oxides
    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D2055/0004—Parts or details of disc brakes
    • F16D2055/0058—Fully lined, i.e. braking surface extending over the entire disc circumference
    • 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
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D2069/002—Combination of different friction materials

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Braking Arrangements (AREA)

Abstract

1362801 Multi-disc brakes; discs DUNLOP Ltd 29 Sept 1972 [7 Oct 1971] 46582/71 Heading F2E An aircraft braking system includes a stack of interleaved rotor and stator discs co-operating pairs of which are both carbon based and non- carbon based friction pairs. Fig. 1 shows a single unit having rotors 1, 2 and stators 3, 4, 5: the rotors 1, 2 are slidably keyed to a rotatable portion of the aircraft wheel and stators 3, 4, 5 are slidably keyed to a non- rotatable portion of the wheel support structure and the brake is actuated by a series of circumferentially spaced hydraulic cylinders 14 in a support 15. As shown, rotor 1 and stator 3 have iron based friction facings 6, 7, 12, rotor 2 and stator 5 have carbon based friction facings 8, 9, 13 whilst the central stator 4 has an iron based facing 10 to engage iron based rotor facing 7 and a carbon based facing 11 to engage carbon based rotor facing 8. The carbon based materials are for example, mixtures of moulded carbon and graphite crystalline structures, or pure carbon or graphite or graphite fibres in a carbon or graphite matrix: the non-carbon based material can have a minor proportion of carbon or graphite but consists mainly of sintered mixtures of metal and ceramics, for example an iron-based material may consist, by volume, of approximately 70% iron and 30% ceramic; other non-carbon based friction material such as bronze or ceramic based materials may be used in place of or in addition to the iron based material. The friction facings are conveniently applied to the rotors and stators as a series of circumferentially spaced pads. In Figure 2 (not shown) iron based pads are mounted in dove-tailed recesses in each side of a rotor or stator backing member which is sandwiched between the pads, but in Fig. 3 (not shown) the pads extend right through the rotor or stator. Fig. 4 shows a suitable method of mounting carbon based friction pads 30 on one side of a rotor or stator 31 and iron based pads 32 on the other side: the carbon pads 30 have protrusions 33 located in recesses 34 in the iron based pads 32. Fig. 5 illustrates an alternative construction in which the outer portion 35 of each pad 36 is made from an iron based material and the inner portion 37 is made from carbon based material with gaps 38, and the two portions in use will engage corresponding portions on an adjacent friction member of the same material. The aircraft braking system may have units as described above or alternatively half of the brake unit may comprise carbon-based friction pairs only, and the other half non-carbon based friction pairs only.
GB4658271A 1971-10-07 1971-10-07 Aircraft disc brakes Expired GB1362801A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB4658271A GB1362801A (en) 1971-10-07 1971-10-07 Aircraft disc brakes
AU47351/72A AU457552B2 (en) 1971-10-07 1972-10-04 Improvements in disc brakes
FR7235343A FR2158866A5 (en) 1971-10-07 1972-10-05
US05/480,415 US3951240A (en) 1971-10-07 1974-06-18 Frictional disc arrangement for a disc brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4658271A GB1362801A (en) 1971-10-07 1971-10-07 Aircraft disc brakes

Publications (1)

Publication Number Publication Date
GB1362801A true GB1362801A (en) 1974-08-07

Family

ID=10441815

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4658271A Expired GB1362801A (en) 1971-10-07 1971-10-07 Aircraft disc brakes

Country Status (2)

Country Link
FR (1) FR2158866A5 (en)
GB (1) GB1362801A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749061A1 (en) * 1976-11-03 1978-05-18 Courtaulds Ltd COMPOSITE MATERIAL

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3722031A1 (en) * 1987-07-03 1989-01-12 Bayerische Motoren Werke Ag BRAKE DISC
FR2624232B1 (en) * 1987-12-04 1991-11-22 Elf France BRAKING DEVICE OF A ROTATING ELEMENT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2749061A1 (en) * 1976-11-03 1978-05-18 Courtaulds Ltd COMPOSITE MATERIAL

Also Published As

Publication number Publication date
AU4735172A (en) 1974-04-26
FR2158866A5 (en) 1973-06-15

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee