GB1023861A - Improvements in and relating to brakes for vehicles - Google Patents
Improvements in and relating to brakes for vehiclesInfo
- Publication number
- GB1023861A GB1023861A GB160363A GB160363A GB1023861A GB 1023861 A GB1023861 A GB 1023861A GB 160363 A GB160363 A GB 160363A GB 160363 A GB160363 A GB 160363A GB 1023861 A GB1023861 A GB 1023861A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- chamber
- attenuator
- relay
- brake
- 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
Links
Classifications
-
- 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
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/321—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration deceleration
- B60T8/3235—Systems specially adapted for rail vehicles
-
- 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
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/665—Electrical control in fluid-pressure brake systems the systems being specially adapted for transferring two or more command signals, e.g. railway systems
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
1,023,861. Compressed air brakes. OERLIKON-BUHRLE HOLDING A.G. Jan. 14, 1963 [Jan. 22, 1962], No. 1603/63. Heading F2F. A speed-responsive change-over device for rail vehicle brakes, the device comprising a tachometric generator 48, the voltage from which actuates, through an adjustable attenuator, an electromagnetioally controlled brake booster valve 35, two outputs from the attenuator being variable independently of each other. The valve circuit is subjected to one or other of the attenuator outputs by a switching member which is operated simultaneously with the actuation of the valve 35. In the construction shown, a triple valve 8 functions under the influence of the pressures in the brake pipe 6 and reservoir 9, the triple valve controlling the pressure in a chamber 11 of a relay valve 12. A chamber 23 of the relay valve is connected through a spring-loaded brake valve 22 to an auxiliary reservoir 14, to the brake cylinder 25, to a switch 28, through valve stem 21 to atmosphere at 29 and through valve 35 to a third relay valve chamber 32. The attenuator comprises either two resistors each variably tapped (Fig. 2, not shown) on one resistor variably tapped at two points (Fig. 3, not shown), the outputs being calibrated, as on scale 59, to correspond with the speeds at which the valve 35 is to be energized and de-energized respectively. The output of the tachometer may be alternating or direct, in the former case the output being rectified before the attenuating part of the circuit. When the brake is applied through the pressurization of chamber 11 and the subsequent closing and opening of valve stem 21 and valve 22, switch 28 is closed. With the speed below that required for booster braking relay, valve 12 moves into the selflapping position. If, however, the speed is above that predetermined, a relay 64 (Fig. 2, not shown) is triggered from one output of the attenuator to actuate the valve 35 which cuts off the brake cylinder from chamber 32 and a flexible diaphragm 19, these latter being vented to air through the valve at 41. Thus the pressure in chamber 11, that is against diaphragm 18, becomes dominent again as the brake cylinder pressure is acting on a small area diaphragm 20, the brake valve 22 being opened again. The speed at which the boosting is discontinued is governed by the second output of the attenuator which is switched into circuit also by relay 64.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH75462A CH408996A (en) | 1962-01-22 | 1962-01-22 | Speed-dependent switching device for the brake on a vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1023861A true GB1023861A (en) | 1966-03-30 |
Family
ID=4194406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB160363A Expired GB1023861A (en) | 1962-01-22 | 1963-01-14 | Improvements in and relating to brakes for vehicles |
Country Status (6)
Country | Link |
---|---|
AT (1) | AT249107B (en) |
CH (1) | CH408996A (en) |
DE (1) | DE1186493B (en) |
GB (1) | GB1023861A (en) |
NL (1) | NL287959A (en) |
SE (1) | SE312352B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1244225B (en) * | 1965-12-07 | 1967-07-13 | Knorr Bremse Gmbh | Driving speed-dependent switching device, especially for rail vehicle brakes |
DE2444495A1 (en) * | 1974-09-18 | 1976-04-08 | Knorr Bremse Gmbh | ELECTRO-PNEUMATIC AIR BRAKE FOR RAIL VEHICLES |
-
0
- NL NL287959D patent/NL287959A/xx unknown
-
1962
- 1962-01-22 CH CH75462A patent/CH408996A/en unknown
- 1962-12-28 DE DEV23470A patent/DE1186493B/en active Pending
-
1963
- 1963-01-04 AT AT9463A patent/AT249107B/en active
- 1963-01-14 GB GB160363A patent/GB1023861A/en not_active Expired
- 1963-01-17 SE SE49963A patent/SE312352B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
AT249107B (en) | 1966-09-12 |
SE312352B (en) | 1969-07-14 |
NL287959A (en) | |
CH408996A (en) | 1966-03-15 |
DE1186493B (en) | 1965-02-04 |
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