ES483078A1 - Una unidad de servofreno hidraulico para automocion mejorada - Google Patents
Una unidad de servofreno hidraulico para automocion mejoradaInfo
- Publication number
- ES483078A1 ES483078A1 ES483078A ES483078A ES483078A1 ES 483078 A1 ES483078 A1 ES 483078A1 ES 483078 A ES483078 A ES 483078A ES 483078 A ES483078 A ES 483078A ES 483078 A1 ES483078 A1 ES 483078A1
- Authority
- ES
- Spain
- Prior art keywords
- fluid source
- transmission ratio
- hydraulic transmission
- brake unit
- 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
- 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
- B60T13/12—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 the fluid being liquid
- B60T13/14—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 the fluid being liquid using accumulators or reservoirs fed by pumps
- B60T13/142—Systems with master cylinder
- B60T13/143—Master cylinder mechanically coupled with booster
- B60T13/144—Pilot valve provided inside booster piston
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Braking Arrangements (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
Una unidad de servofreno hidráulico para automoción mejorada, en la que hay una válvula de freno adaptada para la introducción dosificada del fluido de transmisión de la presión procedente de una fuente de presión en una cámara de servo para que actúe sobre un pistón de servo, y en la que se tiene una relación de la transmisión hidráulica que reduce el recorrido de accionamiento cuando la fuente de presión actúa normalmente pero que queda sin efecto en el caso de fallo de la fuente de presión, caracterizada porque la relación de transmisión hidráulica está dispuesta entre un pistón de entrada conectado a un pedal de freno y un pistón de accionamiento conectado a la válvula de freno, siendo el diámetro del pistón de entrada mayor que el del pistón de accionamiento, y porque el pistón de accionamiento está en el interior de un pistón anular axialmente desplazable cuyo diámetro equivale al menos al del pistón de entrada y el cual está adaptado para que sobre él actúe la presión procedente de la fuente de presión en el sentido opuesto al de la actuación.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782834018 DE2834018A1 (de) | 1978-08-03 | 1978-08-03 | Bremsgeraet fuer kraftfahrzeuge |
Publications (1)
Publication Number | Publication Date |
---|---|
ES483078A1 true ES483078A1 (es) | 1980-04-16 |
Family
ID=6046098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES483078A Expired ES483078A1 (es) | 1978-08-03 | 1979-08-02 | Una unidad de servofreno hidraulico para automocion mejorada |
Country Status (8)
Country | Link |
---|---|
US (1) | US4283994A (es) |
JP (1) | JPS5525691A (es) |
DE (1) | DE2834018A1 (es) |
ES (1) | ES483078A1 (es) |
FR (1) | FR2432413A1 (es) |
GB (1) | GB2027143B (es) |
IT (1) | IT1122218B (es) |
SE (1) | SE437800B (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2948427A1 (de) * | 1979-12-01 | 1981-07-09 | Alfred Teves Gmbh, 6000 Frankfurt | Hydraulischer verstaerker |
EP0038699B1 (en) * | 1980-04-23 | 1984-04-11 | LUCAS INDUSTRIES public limited company | Improvements in power-operated boosters |
DE3201624A1 (de) * | 1981-01-21 | 1982-09-16 | Lucas Industries Ltd., Birmingham, West Midlands | Hydraulischer kraftverstaerker, insbesondere fuer kraftfahrzeug-bremsanlagen |
US4490977A (en) * | 1981-05-18 | 1985-01-01 | The Bendix Corporation | Hydraulic brake booster |
DE3444829A1 (de) * | 1984-12-08 | 1986-06-12 | Robert Bosch Gmbh, 7000 Stuttgart | Bremskraftverstaerker |
DE3523372A1 (de) * | 1985-06-29 | 1987-01-02 | Teves Gmbh Alfred | Bremsdruckgeber fuer eine hydraulische bremsanlage, insbesondere fuer kraftfahrzeuge |
JP2854421B2 (ja) * | 1991-02-06 | 1999-02-03 | 曙ブレーキ工業株式会社 | 液圧式倍力装置 |
US8607660B2 (en) * | 2009-12-02 | 2013-12-17 | Ford Global Technologies, Llc | Vehicle braking assembly |
US8646357B2 (en) | 2009-12-02 | 2014-02-11 | Ford Global Technologies, Llc | Vehicle braking assembly with gap management system |
US9868427B2 (en) | 2015-10-14 | 2018-01-16 | Robert Bosch Gmbh | Vehicle hydraulic brake booster system and method |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3075499A (en) * | 1960-09-16 | 1963-01-29 | Bendix Corp | Servomotor with normally stationary valve structure |
US3113489A (en) * | 1962-04-09 | 1963-12-10 | Wagner Electric Corp | Servo motor |
GB1369742A (en) * | 1971-05-25 | 1974-10-09 | Bendix Gmbh | Power boost mechanism |
DE2260246A1 (de) * | 1971-05-25 | 1974-06-12 | Bendix Gmbh | Kraftverstaerker, insbesondere zur verwendung in kraftfahrzeugen |
DE2164590C3 (de) * | 1971-12-24 | 1979-03-29 | Alfred Teves Gmbh, 6000 Frankfurt | Hauptzylinder für eine Zweikreisbremsanlage für Fahrzeuge, insbesondere Kraftfahrzeuge |
DE2164591C3 (de) * | 1971-12-24 | 1979-06-21 | Alfred Teves Gmbh, 6000 Frankfurt | Zweikreis-Hauptzylinder für eine Druckspeicher-Bremsanlage, insbesondere für Kraftfahrzeuge |
BR7307513D0 (pt) * | 1972-10-02 | 1974-08-22 | Midland Ross Corp | Mecanismo reforcador de freio hidraulico |
DE2359303B2 (de) * | 1972-11-30 | 1977-02-17 | Girling Ltd., Birmingham, West Midlands (Grossbritannien) | Mit hilfskraftunterstuetzung arbeitender pedalbetaetigbarer hauptzylinder fuer hydraulische bremsanlagen, insbesondere fahrzeugbremsanlagen |
US3915066A (en) * | 1972-12-08 | 1975-10-28 | Bendix Gmbh | Power boost mechanism |
US3838629A (en) * | 1973-03-23 | 1974-10-01 | Bendix Corp | Fluid compensating device for hydraulic ratio changer power brake booster |
GB1445355A (en) * | 1973-12-22 | 1976-08-11 | Girling Ltd | Master cylinders for breaking systems |
JPS5112068A (es) * | 1974-07-19 | 1976-01-30 | Nisshin Kogyo Kk | |
JPS595468B2 (ja) * | 1975-02-07 | 1984-02-04 | アイシンセイキ カブシキガイシヤ | ユアツシキパワ−ブレ−キソウチ |
DE2645471C2 (de) * | 1976-10-08 | 1986-01-09 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Kraftverstärker für Hydraulikanlagen, insbesondere Bremsanlagen |
-
1978
- 1978-08-03 DE DE19782834018 patent/DE2834018A1/de not_active Withdrawn
-
1979
- 1979-06-28 GB GB7922542A patent/GB2027143B/en not_active Expired
- 1979-07-09 FR FR7917714A patent/FR2432413A1/fr active Granted
- 1979-07-16 US US06/057,763 patent/US4283994A/en not_active Expired - Lifetime
- 1979-07-20 IT IT24503/79A patent/IT1122218B/it active
- 1979-07-31 SE SE7906490A patent/SE437800B/sv not_active IP Right Cessation
- 1979-08-02 ES ES483078A patent/ES483078A1/es not_active Expired
- 1979-08-03 JP JP9874979A patent/JPS5525691A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
SE7906490L (sv) | 1980-02-04 |
JPH0112705B2 (es) | 1989-03-01 |
SE437800B (sv) | 1985-03-18 |
GB2027143B (en) | 1982-07-07 |
JPS5525691A (en) | 1980-02-23 |
IT7924503A0 (it) | 1979-07-20 |
FR2432413A1 (fr) | 1980-02-29 |
FR2432413B1 (es) | 1983-02-11 |
DE2834018A1 (de) | 1980-02-14 |
GB2027143A (en) | 1980-02-13 |
US4283994A (en) | 1981-08-18 |
IT1122218B (it) | 1986-04-23 |
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