ES284748U - Un servofreno de vacio - Google Patents

Un servofreno de vacio

Info

Publication number
ES284748U
ES284748U ES1985284748U ES284748U ES284748U ES 284748 U ES284748 U ES 284748U ES 1985284748 U ES1985284748 U ES 1985284748U ES 284748 U ES284748 U ES 284748U ES 284748 U ES284748 U ES 284748U
Authority
ES
Spain
Prior art keywords
valve
piston
brake booster
vacuum
hand
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.)
Granted
Application number
ES1985284748U
Other languages
English (en)
Other versions
ES284748Y (es
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.)
Continental Teves AG and Co OHG
Original Assignee
Alfred Teves GmbH
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 Alfred Teves GmbH filed Critical Alfred Teves GmbH
Publication of ES284748U publication Critical patent/ES284748U/es
Application granted granted Critical
Publication of ES284748Y publication Critical patent/ES284748Y/es
Expired legal-status Critical Current

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
    • B60T13/24—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 gaseous
    • B60T13/46—Vacuum systems
    • B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
    • B60T13/57—Vacuum systems indirect, i.e. vacuum booster units characterised by constructional features of control valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

Un servofreno de vacío en el que hay un pistón de servo (19) cerrado con hermetismo respecto a la caja de servo (7), y comprendiendo dicho servofreno un vástago de pistón (14) que está acoplado a un pedal de freno para el accionamiento de una doble válvula (11, 9, 9'' y 11, 12, 12'', respectivamente), pudiendo esta doble válvula conectar alternativamente una cámara de trabajo (20). El servofreno con el vacío o con una presión superior; En el que hay una primera válvula (11, 12, 12'') que esta formada por una parte por un asiento de válvula (12, 12'') de la caja de control (2, 2''), la cual esta conectada el pistón de corvo (19), y por otra parte por una válvula tubular (1) que está precargada hacia el asiento de válvula (11), mientras que una segunda válvula (9, 9'', 11) esta formada por una parte por la misma válvula tubular (1) y por una parte por un pistón de válvula (16, 16'', 9) que está conectado al vástago de pistón (14), caracterizado porque la válvula tubular (1) tiene, dispuestos concéntricamente frente al pistón de válvula (16, 16''), unos salientes (17, 18) en forma de rebordes anulares que se proyectan hacia el exterior, teniendo cada uno de ellos una superficie frontal (b) más a menos plana y formando éstas las superficies de la válvula.
ES1985284748U 1984-02-29 1985-02-20 Un servofreno de vacio Expired ES284748Y (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843407350 DE3407350A1 (de) 1984-02-29 1984-02-29 Vakuumbetriebener bremskraftverstaerker

Publications (2)

Publication Number Publication Date
ES284748U true ES284748U (es) 1985-08-01
ES284748Y ES284748Y (es) 1986-04-16

Family

ID=6229153

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1985284748U Expired ES284748Y (es) 1984-02-29 1985-02-20 Un servofreno de vacio

Country Status (5)

Country Link
DE (1) DE3407350A1 (es)
ES (1) ES284748Y (es)
FR (1) FR2560135B1 (es)
GB (1) GB2157378B (es)
IT (1) IT1184347B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62125657U (es) * 1986-01-31 1987-08-10
US5540053A (en) * 1992-04-19 1996-07-30 Itt Automotive Europe Gmbh Actuating unit for a hydraulic brake system for automotive vehicles
DE4236148A1 (de) * 1992-10-27 1994-04-28 Teves Gmbh Alfred Betätigungseinheit für eine hydraulische Kraftfahrzeugbremsanlage
GB2299141B (en) * 1995-03-24 1999-04-07 Jidosha Kiki Co Booster
US5904088A (en) * 1996-09-27 1999-05-18 Aisin Seiki Kabushiki Kaisha Brake booster apparatus for a vehicle
FR2837454B1 (fr) * 2002-03-21 2004-07-09 Bosch Gmbh Robert Servomoteur pneumatique comportant des sieges decales, des clapets d'admission et de reequilibrage
FR2849635B1 (fr) * 2003-01-07 2005-03-11 Bosch Gmbh Robert Servomoteur pneumatique a phase de reequilibrage de duree reduite
DE60300206T2 (de) * 2002-03-21 2006-01-12 Robert Bosch Gmbh Pneumatischer Servo mit abgesetzten Sitzen, Einlass- und Ausgleichventilen

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB628614A (en) * 1945-12-28 1949-09-01 Ralph Richards Gunderson Improvements in or relating to fluid-pressure braking systems for tractor trailer combinations
FR1527862A (fr) * 1967-03-03 1968-06-07 Quercia Flaminaire Sa Perfectionnements apportés aux dispositifs à gaz sous pression comportant une soupape et au procédé de réglage de celle-ci
DE1958808B2 (de) * 1969-11-22 1973-11-29 Westinghouse Bremsen- Und Apparatebau Gmbh, 3000 Hannover Relaisventil zur Verwendung als Anhängerbremsventil fur Zweikreis Druckluftbremsanlagen von Straßen fahrzeugen
DE2366053A1 (de) * 1972-04-25 1977-08-25 Girling Ltd Bremskraftverstaerker fuer kraftfahrzeuge
HU168071B (es) * 1973-07-30 1976-02-28
DE2355456C3 (de) * 1973-11-06 1981-09-10 Wabco Fahrzeugbremsen Gmbh, 3000 Hannover Mehrkreisschutzventil für Druckluftanlagen für Fahrzeuge, insbesondere Druckluftbremsanlagen für Straßenfahrzeuge
FR2389815A1 (en) * 1977-05-03 1978-12-01 Pont A Mousson Flap valve for sanitary fittings - has flat washer closing onto adjustable seat in valve body
DE2738948C2 (de) * 1977-08-30 1986-09-18 Knorr-Bremse AG, 8000 München Drucksteuerventil zur Steuerung des Vorderachsbremsdruckes in pneumatischen Zweikreis-Fahrzeugbremsanlagen
ZA795402B (en) * 1978-11-02 1980-09-24 Lucas Industries Ltd Servo booster assembly
GB2034837B (en) * 1978-11-02 1982-08-18 Lucas Industries Ltd Servo booster assembly
DE2918908A1 (de) * 1979-05-10 1980-12-11 Teves Gmbh Alfred Vakuumbremskraftverstaerker fuer kraftfahrzeuge
GB2054777B (en) * 1979-07-05 1983-01-26 Lucas Industries Ltd Servo boosters for vehicle braking systems
JPS56127048U (es) * 1980-02-27 1981-09-28
GB2074270B (en) * 1980-04-16 1984-03-14 Lucas Industries Ltd Servo valves for brake boosters
DE3111188A1 (de) * 1981-03-21 1982-09-30 Alfred Teves Gmbh, 6000 Frankfurt Mechanisch steuerbarer kraftverstaerker, insbesondere fuer bremsanlagen von kraftfahrzeugen
JPS57204257U (es) * 1981-06-20 1982-12-25
GB2138512A (en) * 1983-04-20 1984-10-24 Selwood Ltd William R Diaphragm pump
BR8401676A (pt) * 1983-05-24 1985-03-26 Teves Gmbh Alfred Dispositivo de reforco de forca de freio a vacuo

Also Published As

Publication number Publication date
IT8519690A0 (it) 1985-02-27
GB2157378A (en) 1985-10-23
FR2560135B1 (fr) 1990-08-24
GB2157378B (en) 1987-10-14
FR2560135A1 (fr) 1985-08-30
DE3407350A1 (de) 1985-08-29
IT1184347B (it) 1987-10-28
ES284748Y (es) 1986-04-16
GB8503270D0 (en) 1985-03-13

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Legal Events

Date Code Title Description
FD1K Utility model lapsed

Effective date: 19970401