GB1378995A - Brake apparatus - Google Patents

Brake apparatus

Info

Publication number
GB1378995A
GB1378995A GB1289373A GB1289373A GB1378995A GB 1378995 A GB1378995 A GB 1378995A GB 1289373 A GB1289373 A GB 1289373A GB 1289373 A GB1289373 A GB 1289373A GB 1378995 A GB1378995 A GB 1378995A
Authority
GB
United Kingdom
Prior art keywords
pressure
brake
chamber
eddy current
braking
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
GB1289373A
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.)
KNORR BREMSE GmbH
Knorr Bremse AG
Original Assignee
KNORR BREMSE GmbH
Knorr Bremse 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 KNORR BREMSE GmbH, Knorr Bremse AG filed Critical KNORR BREMSE GmbH
Publication of GB1378995A publication Critical patent/GB1378995A/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
    • F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/58—Combined or convertible systems
    • B60T13/585—Combined or convertible systems comprising friction brakes and retarders
    • B60T13/586—Combined or convertible systems comprising friction brakes and retarders the retarders being of the electric type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H7/00—Brakes with braking members co-operating with the track
    • B61H7/02—Scotch blocks, skids, or like track-engaging shoes
    • B61H7/04—Scotch blocks, skids, or like track-engaging shoes attached to railway vehicles
    • B61H7/06—Skids
    • B61H7/08—Skids electromagnetically operated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H9/00—Brakes characterised by or modified for their application to special railway systems or purposes
    • B61H9/006—Brakes for locomotives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transportation (AREA)
  • Braking Systems And Boosters (AREA)
  • Braking Arrangements (AREA)

Abstract

1378995 Fluid pressure brakes KNORRBREMSE GmbH 16 March 1973 [17 March 1972] 12893/73 Heading F2F A braking arrangement for a rail vehicle wheel 4 has an eddy current disc brake comprising a stator 15, a rotor 14 and electromagnets 16 actuated individually or in groups such as in pairs by pressure switches 13 arranged to operate at different pressure levels by the air pressure of a separate friction brake system, the torque on the eddy current brake acting to regulate the friction brake pressure. For a braking operation, reduction in pressure in a main air pipe 6 results in a brake control valve 7 being actuated to permit air pressure from a reservoir 9 to pass via lines 8, 10 to actuate one or more of the switches 13 according to the degree of braking set by the air pressure. The torque of the eddy current brake is transmitted via a support 19 to a pressure converter 20 fixed to the vehicle frame whereby a piston 27 thereof is caused to move rightwardly to unseat a valve plate 26 and permit air pressure from reservoir 9 to pass via lines 33, 34 to a chamber 35 of a triple valve 11. The pressure established in chamber 35 biases a piston 40 leftwardly in opposition to the rightwardly acting pressure on a piston 44 coupled thereto through a valve tube 41, which pressure is established in a chamber 36 connected to control line 10. When the pressure in chamber 36 exceeds that in chamber 35, pistons 44, 40 move rightwardly whereby valve tube 41 unseats a valve plate 48 allowing air pressure to pass from line 10 through chambers 37, 39 and line 38 to operate brake cylinder 3. The pressure building-up in chamber 39 restores equilibrium across pistons 40, 41 and thereby producing a specific braking torque. As the torque generated by the eddy current brake diminishes when the wheel decelerates the force on torque support 19 decreases so that valve tube is lifted, by the pressure in chamber 21, from valve plate 26 whereby chambers 21 and 35 are vented through a throttle 31. The pressure in chamber 36 then displaces valve tube 41 rightwardly to once again unseat valve plate 48 and apply pressure to brake cylinder 3. In this manner decreasing braking torque of the eddy current brake is compensated by the higher braking torque generated by the friction brake. In the event of failure of the eddy current brake full braking pressure is applied to the brake cylinder 3.
GB1289373A 1972-03-17 1973-03-16 Brake apparatus Expired GB1378995A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722213050 DE2213050A1 (en) 1972-03-17 1972-03-17 BRAKE DEVICE FOR VEHICLES, IN PARTICULAR RAIL VEHICLES

Publications (1)

Publication Number Publication Date
GB1378995A true GB1378995A (en) 1975-01-02

Family

ID=5839274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1289373A Expired GB1378995A (en) 1972-03-17 1973-03-16 Brake apparatus

Country Status (6)

Country Link
AT (1) AT325668B (en)
CH (1) CH543405A (en)
DE (1) DE2213050A1 (en)
FR (1) FR2176671B1 (en)
GB (1) GB1378995A (en)
IT (1) IT979749B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112644694A (en) * 2021-01-13 2021-04-13 北京航空航天大学 Electromagnetic energy conversion hydraulic brake integrated device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010022038A1 (en) * 2010-05-25 2011-12-01 Siemens Aktiengesellschaft Braking system for rail vehicle, has electrically actuated drive unit with regenerative brake and drive unit-friction brake and operating unit with eddy current brake and operating unit-friction brake
DE102010032516A1 (en) 2010-07-28 2012-02-02 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Braking device with a brake disc of a friction disc brake forming rotor of an eddy disc brake
DE102012202118B4 (en) * 2012-02-13 2014-07-31 Siemens Aktiengesellschaft Braking device of a vehicle
CN105673731B (en) * 2016-01-15 2018-04-03 江苏大学 A kind of electromagnetic braking and friction catch integrated brake device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112644694A (en) * 2021-01-13 2021-04-13 北京航空航天大学 Electromagnetic energy conversion hydraulic brake integrated device
CN112644694B (en) * 2021-01-13 2023-01-20 北京航空航天大学 Electromagnetic energy conversion hydraulic brake integrated device

Also Published As

Publication number Publication date
FR2176671B1 (en) 1978-03-03
AT325668B (en) 1975-11-10
DE2213050A1 (en) 1973-09-20
ATA206273A (en) 1975-01-15
FR2176671A1 (en) 1973-11-02
IT979749B (en) 1974-09-30
CH543405A (en) 1973-10-31

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Legal Events

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