GB1130943A - Improvements in or relating to master cylinders for hydraulic brakes, particularly for hydraulic brakes of motor vehicles - Google Patents

Improvements in or relating to master cylinders for hydraulic brakes, particularly for hydraulic brakes of motor vehicles

Info

Publication number
GB1130943A
GB1130943A GB11446/66A GB1144666A GB1130943A GB 1130943 A GB1130943 A GB 1130943A GB 11446/66 A GB11446/66 A GB 11446/66A GB 1144666 A GB1144666 A GB 1144666A GB 1130943 A GB1130943 A GB 1130943A
Authority
GB
United Kingdom
Prior art keywords
piston
stem
hydraulic brakes
passage
ball valve
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
GB11446/66A
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.)
AUTOBRZDY JABLONEC NARODNI POD
Original Assignee
AUTOBRZDY JABLONEC NARODNI POD
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 AUTOBRZDY JABLONEC NARODNI POD filed Critical AUTOBRZDY JABLONEC NARODNI POD
Publication of GB1130943A publication Critical patent/GB1130943A/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
    • B60T11/224—Master control, e.g. master cylinders with pressure-varying means, e.g. with two stage operation provided by use of different piston diameters including continuous variation from one diameter to another

Abstract

1,130,943. Hydraulic brakes. AUTOBRZDY JABLONEC NARODNI PODNIK. 16 March, 1966 [20 March, 1965], No. 11446/66. Heading F2F. A master cylinder of the kind having a large diameter piston 2 and a small diameter piston 6 working in a stepped bore, and comprising an arrangement of valves and passages such that the delivery of a large volume of fluid at low pressure at the outlet 11 is followed by the delivery of a smaller volume at higher pressure, has a passage 31 in the small diameter piston 6, so that initially the latter is ineffective, and a valve 24 carried by a stem 25 for closing this passage, the stem being slidable in a twopart sleeve 12, 13 which also contains a ball valve 15 loaded by a spring 17, the arrangement being such that when a predetermined output pressure is exceeded the ball valve opens and allows fluid to escape to the reservoir (not shown), by way of a restricting orifice 19; piston 2 then moves until valve 24 contacts piston 6 and closes the passage 31, whereupon extension pin 28 of stem 25 engages the ball valve to maintain it open, the output being subsequently at the higher pressure determined by the smaller diameter of piston 6, which is pushed along by the stem 25. The piston 2 carries a slidable seal 3 on its flange 33 which, during the return stroke of piston 2, uncovers radial passages 35 communicating via axial passages 34 with the low pressure chamber in front of piston 2, so that fluid can return to this chamber freely from the reservoir.
GB11446/66A 1965-03-20 1966-03-16 Improvements in or relating to master cylinders for hydraulic brakes, particularly for hydraulic brakes of motor vehicles Expired GB1130943A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS183365 1965-03-20

Publications (1)

Publication Number Publication Date
GB1130943A true GB1130943A (en) 1968-10-16

Family

ID=5353680

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11446/66A Expired GB1130943A (en) 1965-03-20 1966-03-16 Improvements in or relating to master cylinders for hydraulic brakes, particularly for hydraulic brakes of motor vehicles

Country Status (2)

Country Link
DE (1) DE1505301B1 (en)
GB (1) GB1130943A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028587B1 (en) * 1968-12-18 1975-09-17
JPS5344769A (en) * 1976-10-05 1978-04-21 Yuzuru Sakata Master cylinder for braking devece
US20150226238A1 (en) * 2014-02-07 2015-08-13 Kodiak Products Co.,Inc. Surge brake actuator

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3500055A1 (en) * 1985-01-03 1986-07-03 FAG Kugelfischer Georg Schäfer KGaA, 8720 Schweinfurt Central valve in or on master-cylinder pistons
DE19513347B4 (en) * 1995-04-08 2006-01-19 Continental Teves Ag & Co. Ohg Electromechanically actuated pressure modulator
FR2907084B1 (en) * 2006-10-13 2008-12-12 Bosch Gmbh Robert CONTROL SYSTEM FOR HYDRAULIC BRAKE SYSTEM

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2206629A (en) * 1939-03-01 1940-07-02 Hydraulic Brake Co Fluid pressure braking system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5028587B1 (en) * 1968-12-18 1975-09-17
JPS5344769A (en) * 1976-10-05 1978-04-21 Yuzuru Sakata Master cylinder for braking devece
JPS5818268B2 (en) * 1976-10-05 1983-04-12 坂田 譲 Brake master cylinder device
US20150226238A1 (en) * 2014-02-07 2015-08-13 Kodiak Products Co.,Inc. Surge brake actuator
US9707946B2 (en) * 2014-02-07 2017-07-18 Kodiak Products Co., Inc. Surge brake actuator

Also Published As

Publication number Publication date
DE1505301B1 (en) 1971-12-16

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