ES8105648A1 - Master cylinder for vehicle hydraulic brake - has cylinder with sliding stepped piston and non return and relief valves - Google Patents

Master cylinder for vehicle hydraulic brake - has cylinder with sliding stepped piston and non return and relief valves

Info

Publication number
ES8105648A1
ES8105648A1 ES493945A ES493945A ES8105648A1 ES 8105648 A1 ES8105648 A1 ES 8105648A1 ES 493945 A ES493945 A ES 493945A ES 493945 A ES493945 A ES 493945A ES 8105648 A1 ES8105648 A1 ES 8105648A1
Authority
ES
Spain
Prior art keywords
cylinder
hydraulic brake
non return
vehicle hydraulic
stepped piston
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
ES493945A
Other languages
Spanish (es)
Other versions
ES493945A0 (en
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.)
Weber SRL
Original Assignee
Weber SRL
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 Weber SRL filed Critical Weber SRL
Publication of ES493945A0 publication Critical patent/ES493945A0/en
Publication of ES8105648A1 publication Critical patent/ES8105648A1/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
    • 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

Abstract

The force multiplying master cylinder for a vehicle hydraulic brake has a cylinder with two feed connections (4,5) and two drains (6,7). A stepped piston (9) moves in the cylinder, controlled by the brake pedal. A joint separates from the main chamber (24) an annular chamber (23) around the least piston diameter (10). A non return valve (21) allows liquid to flow from the annular to the main chamber (24). Between the former and the feed connection (4) is a valve (26) in the cylinder body (1), normally closed and opening with pressure and closing when this falls to a certain value.
ES493945A 1979-09-05 1980-08-01 Master cylinder for vehicle hydraulic brake - has cylinder with sliding stepped piston and non return and relief valves Expired ES8105648A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT68765/79A IT1126200B (en) 1979-09-05 1979-09-05 MASTER CYLINDER MULTIPLIER FOR HYDRAULIC VEHICLE BRAKING SYSTEMS

Publications (2)

Publication Number Publication Date
ES493945A0 ES493945A0 (en) 1981-06-16
ES8105648A1 true ES8105648A1 (en) 1981-06-16

Family

ID=11310510

Family Applications (1)

Application Number Title Priority Date Filing Date
ES493945A Expired ES8105648A1 (en) 1979-09-05 1980-08-01 Master cylinder for vehicle hydraulic brake - has cylinder with sliding stepped piston and non return and relief valves

Country Status (4)

Country Link
BR (1) BR8005642A (en)
ES (1) ES8105648A1 (en)
FR (1) FR2464169A1 (en)
IT (1) IT1126200B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1119298B (en) * 1979-06-26 1986-03-10 Weber Spa MASTER CYLINDER FOR VEHICLE BRAKING SYSTEMS IN SEPARATE CIRCUITS
GB8802298D0 (en) * 1988-02-02 1988-03-02 Lucas Ind Plc Master cylinder
KR20130070573A (en) 2010-03-29 2013-06-27 콘티넨탈 테베스 아게 운트 코. 오하게 Brake system for motor vehicles
KR20130076809A (en) * 2010-03-29 2013-07-08 콘티넨탈 테베스 아게 운트 코. 오하게 Brake system for motor vehicles
CN113044013B (en) * 2021-03-05 2022-05-24 江苏沃得农业机械股份有限公司 One-way two-stage pressure booster brake pump
CN112810590A (en) * 2021-03-05 2021-05-18 江苏沃得农业机械股份有限公司 Double-circuit two-stage pressure booster brake pump
CN112810591A (en) * 2021-03-05 2021-05-18 江苏沃得农业机械股份有限公司 One-way two-stage pressure booster brake pump
CN112810592A (en) * 2021-03-05 2021-05-18 江苏沃得农业机械股份有限公司 Double-circuit two-stage pressure booster brake pump
CN114802142A (en) * 2022-04-01 2022-07-29 浙江奔腾智能制动系统有限公司 Plunger type brake master cylinder with automobile constant-pressure quick-charging structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2190238A (en) * 1933-01-06 1940-02-13 Lepersonne Octave Hydrocompound braking system
US2291056A (en) * 1941-01-31 1942-07-28 Roy R Pallady Compound hydraulic brake master cylinder
US2580851A (en) * 1948-11-20 1952-01-01 Alfred B Seppmann Master cylinder relief valve
US4086770A (en) * 1976-11-29 1978-05-02 General Motors Corporation Dual circuit quick take-up master cylinder

Also Published As

Publication number Publication date
ES493945A0 (en) 1981-06-16
FR2464169A1 (en) 1981-03-06
FR2464169B1 (en) 1984-04-27
IT1126200B (en) 1986-05-14
IT7968765A0 (en) 1979-09-05
BR8005642A (en) 1981-03-17

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20020304