FR2449572B1 - - Google Patents
Info
- Publication number
- FR2449572B1 FR2449572B1 FR8003920A FR8003920A FR2449572B1 FR 2449572 B1 FR2449572 B1 FR 2449572B1 FR 8003920 A FR8003920 A FR 8003920A FR 8003920 A FR8003920 A FR 8003920A FR 2449572 B1 FR2449572 B1 FR 2449572B1
- Authority
- FR
- France
- 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
- B60T13/12—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 liquid
- B60T13/14—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 liquid using accumulators or reservoirs fed by pumps
- B60T13/142—Systems with master cylinder
- B60T13/143—Master cylinder mechanically coupled with booster
- B60T13/144—Pilot valve provided inside booster piston
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Control Of Transmission Device (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/013,880 US4237772A (en) | 1979-02-22 | 1979-02-22 | Hydraulic ratio-changing booster with hydraulic lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2449572A1 FR2449572A1 (fr) | 1980-09-19 |
| FR2449572B1 true FR2449572B1 (US07579456-20090825-P00002.png) | 1983-03-25 |
Family
ID=21762272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8003920A Granted FR2449572A1 (fr) | 1979-02-22 | 1980-02-22 | Dispositif d'assistance hydraulique a changement de rapport |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4237772A (US07579456-20090825-P00002.png) |
| DE (1) | DE3002755A1 (US07579456-20090825-P00002.png) |
| FR (1) | FR2449572A1 (US07579456-20090825-P00002.png) |
| GB (1) | GB2043193B (US07579456-20090825-P00002.png) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4294071A (en) * | 1979-12-12 | 1981-10-13 | Midland-Ross Corporation | Hydraulic booster travel ratio check valve |
| GB2113331B (en) * | 1982-01-19 | 1985-09-11 | Automotive Prod Co Ltd | Vehicle brake booster |
| DE3338322A1 (de) * | 1983-10-21 | 1985-05-02 | Alfred Teves Gmbh, 6000 Frankfurt | Druckmittelbetaetigbare fahrzeugbremsanlage |
| DE3438112A1 (de) * | 1984-10-18 | 1986-04-24 | Alfred Teves Gmbh, 6000 Frankfurt | Hydraulischer kraftverstaerker |
| DE3726525A1 (de) * | 1987-08-10 | 1989-02-23 | Teves Gmbh Alfred | Vorrichtung zur uebersetzung eines hydraulischen drucks in eine translatorische kraft |
| DE3728921A1 (de) * | 1987-08-29 | 1989-03-09 | Bosch Gmbh Robert | Bremszylinder |
| US9592811B2 (en) * | 2015-03-14 | 2017-03-14 | Yangzhou Taibo Automotive Electronics Intelligent Technology Company, Ltd | Electro-hydraulic brake system with electric power assist and by-wire braking |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3253409A (en) * | 1964-08-05 | 1966-05-31 | Gen Motors Corp | Hydraulic fluid viscosity compensation mechanism for a hydraulic power booster |
| DE2260246A1 (de) * | 1971-05-25 | 1974-06-12 | Bendix Gmbh | Kraftverstaerker, insbesondere zur verwendung in kraftfahrzeugen |
| GB1369742A (en) * | 1971-05-25 | 1974-10-09 | Bendix Gmbh | Power boost mechanism |
| US3733968A (en) * | 1971-10-01 | 1973-05-22 | Bendix Corp | Brake pedal travel limiter for hydraulic brake booster |
| US3915066A (en) * | 1972-12-08 | 1975-10-28 | Bendix Gmbh | Power boost mechanism |
| DE2318447A1 (de) * | 1973-04-12 | 1974-10-31 | Bendix Gmbh | Servoverstaerker |
| US3977193A (en) * | 1973-07-11 | 1976-08-31 | Tokico Ltd. | Hydraulic braking force multiplying device |
| US3896620A (en) * | 1974-01-14 | 1975-07-29 | Gen Motors Corp | Two-stage accumulator valve |
| US3973401A (en) * | 1974-01-30 | 1976-08-10 | Girling Limited | Power-operated boosters for vehicle braking systems |
| US3988967A (en) * | 1975-07-10 | 1976-11-02 | The Weatherhead Company | Brake booster with hydraulic ratio changer |
| US4007665A (en) * | 1975-11-28 | 1977-02-15 | The Weatherhead Company | Brake booster with improved pedal feel characteristics |
-
1979
- 1979-02-22 US US06/013,880 patent/US4237772A/en not_active Expired - Lifetime
-
1980
- 1980-01-24 DE DE19803002755 patent/DE3002755A1/de not_active Withdrawn
- 1980-02-14 GB GB8005025A patent/GB2043193B/en not_active Expired
- 1980-02-22 FR FR8003920A patent/FR2449572A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2449572A1 (fr) | 1980-09-19 |
| GB2043193B (en) | 1982-12-08 |
| GB2043193A (en) | 1980-10-01 |
| DE3002755A1 (de) | 1980-09-04 |
| US4237772A (en) | 1980-12-09 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |