GB1354987A - Tandem master cylinder for hydraulic braking system - Google Patents

Tandem master cylinder for hydraulic braking system

Info

Publication number
GB1354987A
GB1354987A GB220272A GB1913871A GB1354987A GB 1354987 A GB1354987 A GB 1354987A GB 220272 A GB220272 A GB 220272A GB 1913871 A GB1913871 A GB 1913871A GB 1354987 A GB1354987 A GB 1354987A
Authority
GB
United Kingdom
Prior art keywords
piston
recess
head
stem
pistons
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
GB220272A
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.)
Girling Ltd
Original Assignee
Girling 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 Girling Ltd filed Critical Girling Ltd
Priority to GB220272A priority Critical patent/GB1354987A/en
Priority to ZA723677A priority patent/ZA723677B/en
Priority to SU721794488A priority patent/SU610481A3/en
Priority to BR3606/72A priority patent/BR7203606D0/en
Priority to JP5520172A priority patent/JPS5221659B1/ja
Priority to DE19722227233 priority patent/DE2227233B2/en
Priority to FR7220127A priority patent/FR2140448B1/fr
Priority to DD16342772A priority patent/DD98251A1/xx
Publication of GB1354987A publication Critical patent/GB1354987A/en
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
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/16—Master control, e.g. master cylinders
    • B60T11/20—Tandem, side-by-side, or other multiple master cylinder units

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Of Braking Force In Braking Systems (AREA)
  • Braking Arrangements (AREA)

Abstract

1354987 Master cylinders GIRLING Ltd 1 June 1972 [5 June 1971 28 Oct 1971 17 Jan 1972] 19138/71 50296/71 and 2202/72 Heading F2F Two pistons 2, 8 working in a stepped bore of a tandem master cylinder 1 are coupled to limit relative axial movement in both directions and are resiliently urged apart by a single spring 25. Two pressure chambers 16, 15 communicate with reservoirs by way of ports 13, 6 respectively and with wheel cylinders. The brake system is supplied from space 15 with full pressure which for a given pedal pressure increases in the ratio of the difference in areas of the two pistons. If the system supplied from space 15 fails piston 2 moves forward until the head 18 of a stem 17 coupled to piston 8 engages the inner end of a recess 19 after which the two pistons move together. In a further embodiment spring 16 is absent. A modification of this embodiment has the stem screwed in the piston 2, a recess, 78, Fig. 3 (not shown), being provided to receive the head (77) thereof and a washer (79) encircles the stem and is secured to the end of piston (67) by a peened shoulder to trap the head (77) in the recess (78).
GB220272A 1971-06-05 1971-06-05 Tandem master cylinder for hydraulic braking system Expired GB1354987A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB220272A GB1354987A (en) 1971-06-05 1971-06-05 Tandem master cylinder for hydraulic braking system
ZA723677A ZA723677B (en) 1971-06-05 1972-05-29 Tandem master cylinder for hydraulic braking systems
SU721794488A SU610481A3 (en) 1971-06-05 1972-06-02 Twin master cylinder for vehicle hydraulic brake system
BR3606/72A BR7203606D0 (en) 1971-06-05 1972-06-05 TANDEM MASTER CYLINDER
JP5520172A JPS5221659B1 (en) 1971-06-05 1972-06-05
DE19722227233 DE2227233B2 (en) 1971-06-05 1972-06-05 TANDEM MASTER CYLINDER FOR HYDRAULIC VEHICLE BRAKING SYSTEMS
FR7220127A FR2140448B1 (en) 1971-06-05 1972-06-05
DD16342772A DD98251A1 (en) 1971-06-05 1972-06-05

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB220272A GB1354987A (en) 1971-06-05 1971-06-05 Tandem master cylinder for hydraulic braking system

Publications (1)

Publication Number Publication Date
GB1354987A true GB1354987A (en) 1974-05-30

Family

ID=10124386

Family Applications (1)

Application Number Title Priority Date Filing Date
GB220272A Expired GB1354987A (en) 1971-06-05 1971-06-05 Tandem master cylinder for hydraulic braking system

Country Status (4)

Country Link
BR (1) BR7203606D0 (en)
GB (1) GB1354987A (en)
SU (1) SU610481A3 (en)
ZA (1) ZA723677B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3026428A1 (en) * 1979-07-12 1981-01-29 Lucas Industries Ltd PISTON ASSEMBLY FOR A HYDRAULIC MASTER CYLINDER
FR2515124A1 (en) * 1981-10-27 1983-04-29 Lucas Ind Plc BRAKE SYSTEM FOR VEHICLE
US4831916A (en) * 1987-06-01 1989-05-23 Leigh Monstevens Keith V Piston assembly
EP1932736A1 (en) 2006-12-12 2008-06-18 HONDA MOTOR CO., Ltd. Brake system
CN104203670A (en) * 2012-03-30 2014-12-10 本田技研工业株式会社 Braking device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3026428A1 (en) * 1979-07-12 1981-01-29 Lucas Industries Ltd PISTON ASSEMBLY FOR A HYDRAULIC MASTER CYLINDER
FR2515124A1 (en) * 1981-10-27 1983-04-29 Lucas Ind Plc BRAKE SYSTEM FOR VEHICLE
US4831916A (en) * 1987-06-01 1989-05-23 Leigh Monstevens Keith V Piston assembly
EP1932736A1 (en) 2006-12-12 2008-06-18 HONDA MOTOR CO., Ltd. Brake system
US7651176B2 (en) 2006-12-12 2010-01-26 Honda Motor Co., Ltd. Brake system
CN104203670A (en) * 2012-03-30 2014-12-10 本田技研工业株式会社 Braking device
US9421957B2 (en) 2012-03-30 2016-08-23 Honda Motor Co., Ltd. Braking device

Also Published As

Publication number Publication date
ZA723677B (en) 1973-03-28
SU610481A3 (en) 1978-06-05
BR7203606D0 (en) 1973-05-15

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Legal Events

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