ES340008A1 - Improvements in or relating to Vacuum Brake Boosters - Google Patents
Improvements in or relating to Vacuum Brake BoostersInfo
- Publication number
- ES340008A1 ES340008A1 ES340008A ES340008A ES340008A1 ES 340008 A1 ES340008 A1 ES 340008A1 ES 340008 A ES340008 A ES 340008A ES 340008 A ES340008 A ES 340008A ES 340008 A1 ES340008 A1 ES 340008A1
- Authority
- ES
- Spain
- Prior art keywords
- piston
- pressure
- rod
- booster
- pedal
- 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
- B60T13/24—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
- B60T13/573—Vacuum systems indirect, i.e. vacuum booster units characterised by reaction devices
-
- 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
-
- 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
- B60T13/565—Vacuum systems indirect, i.e. vacuum booster units characterised by being associated with master cylinders, e.g. integrally formed
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
To enable a vehicle driver to sense the braking force exerted in a booster assisted hydraulic brake system, a reaction piston 16 is provided which is slidable in a bore of an extension sleeve member 2a of a booster piston 2. The piston end 16a is subjected to pressure in the brake primary circuit while its other end abuts pedal link rod 5, and thereby pressure is transmitted to the pedal. Likewise a control piston 17 transmits reaction force due to the secondary circuit pressure. The booster piston assembly 2, 2a, a sleeve 10 and a spacer member 20 form the primary piston, slidable in master cylinder chamber 14 while 11 is a secondary piston. If the primary circuit fails the booster piston assembly is moved by atmospheric pressure until spacer 20 abuts a disc 19 on a push rod 18 and the rod 5 and reaction piston 16 are shifted until piston 16 abuts the rod 18. Brakes are thus operated and reaction force is transmitted to the pedal being derived from pressure in the secondary circuit chamber 15 which acts, via bore 21 of piston 11, on the control piston 17 and is transmitted by push rod 18 to piston 16 and via rod 5 to the pedal. The booster piston chamber 3 is always maintained at negative pressure while chamber 4 is alternately at negative pressure and atmospheric pressure, as determined by valves operated by movement of link rod 5.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET0032169 | 1966-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES340008A1 true ES340008A1 (en) | 1968-06-01 |
Family
ID=7556853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES340008A Expired ES340008A1 (en) | 1966-09-30 | 1967-04-29 | Improvements in or relating to Vacuum Brake Boosters |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1655293A1 (en) |
ES (1) | ES340008A1 (en) |
GB (1) | GB1183943A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2236563A (en) * | 1989-10-07 | 1991-04-10 | Teves Gmbh Alfred | Reaction device in a vacuum brake booster |
-
1966
- 1966-09-30 DE DE19661655293 patent/DE1655293A1/en active Pending
-
1967
- 1967-04-29 ES ES340008A patent/ES340008A1/en not_active Expired
- 1967-06-20 GB GB2843167A patent/GB1183943A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1183943A (en) | 1970-03-11 |
DE1655293A1 (en) | 1971-02-04 |
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