ES293419A1 - Improvements relating to master cylinders of hydraulic braking systems - Google Patents
Improvements relating to master cylinders of hydraulic braking systemsInfo
- Publication number
- ES293419A1 ES293419A1 ES0293419A ES293419A ES293419A1 ES 293419 A1 ES293419 A1 ES 293419A1 ES 0293419 A ES0293419 A ES 0293419A ES 293419 A ES293419 A ES 293419A ES 293419 A1 ES293419 A1 ES 293419A1
- Authority
- ES
- Spain
- Prior art keywords
- piston
- main piston
- duct
- control piston
- 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
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
- B60T11/232—Recuperation valves
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
A master cylinder comprises a main piston 1, a control piston 2 behind the main piston normally defining a space 15, and a duct 7, 10 formed partly in the control piston and partly in the main piston establishing communication under certain conditions between a replenishment reservoir (not shown) and a pressure chamber formed ahead of the main piston, said control piston carrying a check valve having a free ball valve member 5 which is seated by the dynamic action of the fluid when braking pressure is produced in the pressure chamber. On initial depression of the brake pedal, the control piston moves rightwards until the resilient ring 4 thereon engages the main piston to out off the space 15 from the duct 10. On further control piston movement, the pistons abut and move together, the resultant pressurization of the pressure chamber washing the valve member on to its seat to prevent communication between said chamber and the reservoir via connection 13, axial passages 9 in the piston peripheries and duct portions 7 and 10. On pedal release the pistons are moved back in unison by spring 14. Should suction develope downstream of the valve, ball 5 unseats to re-establish communication with the reservoir. Finally, the main piston flange 12 engages a stop formed by the connection nipple 13 and the pistons separate. The valve seat 6 comprises a resilient ring which deforms when compression exceeds a given value to allow the ball to engage the bevelled end of the duct 7.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR947308A FR1375928A (en) | 1963-09-12 | 1963-09-12 | Master cylinder for hydraulic brakes |
Publications (1)
Publication Number | Publication Date |
---|---|
ES293419A1 true ES293419A1 (en) | 1964-01-01 |
Family
ID=8812225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0293419A Expired ES293419A1 (en) | 1963-09-12 | 1963-11-02 | Improvements relating to master cylinders of hydraulic braking systems |
Country Status (3)
Country | Link |
---|---|
ES (1) | ES293419A1 (en) |
FR (1) | FR1375928A (en) |
GB (1) | GB1083882A (en) |
-
1963
- 1963-09-12 FR FR947308A patent/FR1375928A/en not_active Expired
- 1963-11-02 ES ES0293419A patent/ES293419A1/en not_active Expired
-
1964
- 1964-09-11 GB GB3725164A patent/GB1083882A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1375928A (en) | 1964-10-23 |
GB1083882A (en) | 1967-09-20 |
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