CN2352748Y - Double pipe braking main cylinder - Google Patents
Double pipe braking main cylinder Download PDFInfo
- Publication number
- CN2352748Y CN2352748Y CN 98240588 CN98240588U CN2352748Y CN 2352748 Y CN2352748 Y CN 2352748Y CN 98240588 CN98240588 CN 98240588 CN 98240588 U CN98240588 U CN 98240588U CN 2352748 Y CN2352748 Y CN 2352748Y
- Authority
- CN
- China
- Prior art keywords
- master cylinder
- cylinder
- main cylinder
- hydraulic pressure
- 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 - Fee Related
Links
Images
Landscapes
- Hydraulic Control Valves For Brake Systems (AREA)
Abstract
The utility model provides a double pipe braking main cylinder, comprising a front main cylinder and a back main cylinder; the front and the back main cylinders are connected into integration. The utility model is characterized in that a pressurizing cylinder is added on one end where the front main cylinder is connected with the back main cylinder; a pressurizing piston with a sealing ring is added on the tail part of the piston of the front main cylinder; the pressurizing piston is matched with the pressurizing cylinder; a channel through which the front main cylinder is communicated with the back main cylinder is arranged in the pressurizing piston and is controlled by a ball valve; in addition, an oil return hole for controlling the hydraulic pressure of the front main cylinder is also arranged in the front main cylinder. The oil return hole is controlled by the ball valve limiting the pressure of 3-5 kg f/cm <2>; in addition, the front part of the pressurizing cylinder is provided with an oil hole communicated with the front main cylinder. The utility model has the advantages of high generated hydraulic pressure and good braking effect.
Description
The utility model relates to the dual line braking master cylinder in a kind of hydraulic braking system for automobile.
The present dual line braking master cylinder that generally uses, form by former and later two master cylinder loops that hold together separate, the hydraulic pressure of back master cylinder is produced by the hydraulic pressure or the thrust of front master cylinder, in order to eliminate the gap of brake shoe at short notice, the internal diameter design of brake master cylinder is bigger, so that can there be a large amount of fluid to inject wheel cylinder in the short time, but because the master cylinder internal diameter is bigger, the hydraulic pressure of its generation is not high, and braking effect is not satisfactory.
The purpose of this utility model just provides a kind of hydraulic pressure height, the dual line braking master cylinder of good braking effect.
The utility model is the same with common double pipeline brake master cylinder, comprise the master cylinder loop that former and later two hold together separate, only set up the pressurized cylinder of an internal diameter less than the front master cylinder internal diameter at front master cylinder with the back end that is connected of master cylinder, the afterbody of the piston in the front master cylinder is set up the charged piston of the band seal ring of the use that matches with this pressurized cylinder.Be provided with a spill port in the cylinder chamber of front master cylinder, this spill port is by the sealing of level pressure ball valve, and the hydraulic pressure in the control front master cylinder chamber is 3-5 kilogram f/cm
2In case surpass this hydraulic pressure, the level pressure ball valve is opened spill port, the fluid in the front master cylinder is back to oil storage tank in spill port.Master cylinder chamber and booster cavity have a passage, this logical being located in the charged piston, and an end opening is in the master cylinder chamber, and the other end is opened in the booster cavity and by the switching of ball valve control channel.The front portion of pressurized cylinder has an oilhole to communicate with front master cylinder in addition, and its switching is controlled by the charged piston mobile position.
The utility model is owing to increase the pressurized cylinder that internal diameter is less, reach at the pressure of front master cylinder that the fluid in the front master cylinder no longer enters in the pressurized cylinder under the stable condition, by self producing hydraulic pressure in the pressurized cylinder, under identical extraneous thrust, the hydraulic pressure that pressurized cylinder produces is than the hydraulic pressure height of prior art master cylinder generation like this.
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1, dual circuit high pressure brake master cylinder sectional drawing of the prior art.
Fig. 2, sectional drawing of the present utility model.
The utility model comprise be linked as one whole before and after master cylinder 1,2.Independent hydraulically controlled loop is arranged in each master cylinder, and the hydraulic pressure that back master cylinder produces depends on hydraulic pressure or thrust that front master cylinder produces.Set up the pressurized cylinder 3 of an internal diameter at front master cylinder with the end that the back master cylinder is connected less than the internal diameter of front master cylinder, setting up one in the piston tail of 1 li of front master cylinder matches with pressurized cylinder 3 and to be with the charged piston 4 of seal ring 10, front master cylinder 1 is provided with a spill port 6, this spill port is by level pressure ball valve 7 controls of band spring, and the level pressure of these ball valve 7 designs is 3-6 kilogram f/cm
2, a passage 8 is arranged between front master cylinder 1 and the pressurized cylinder 3, this passage 8 is located at the inside of charged piston 4, and an end opening is in the master cylinder chamber, and the other end is opened in the booster cavity.This passage is controlled it by the ball valve 9 of band spring and is closed.The pressurized cylinder front portion has an oilhole 11 to communicate with front master cylinder.Its switching is controlled by the charged piston mobile position.
Working principle of the present utility model is as follows: in the master cylinder working procedure, in the braking preproduction phase, when promptly just having depressed brake petal, push rod promotes the front master cylinder piston and moves backward, the pressure of generation together of front master cylinder piston and back master cylinder piston, because it is fast that the pressure that the pressure that front master cylinder produces produces than pressurized cylinder raises, the elastic force that most of fluid overcomes ball valve 9 upper springs in the front master cylinder chamber is opened ball and is cut down and enter in the pressurized cylinder, move after the continuation along with push rod, oil pressure in front master cylinder and the pressurized cylinder raises, when hydraulic pressure reaches 3-5 kilogram f/cm
2The time, brake shoe is eliminated substantially with the crack, begins to enter braking state this moment.When oil pressure surpasses 3-5 kilogram f/cm
2During the left and right sides, ball valve 7 is opened.The fluid of front master cylinder returns oil storage tank by spill port 6 and begins release.Work energetically the hydraulic pressure of front master cylinder at this moment owing to the hydraulic pressure of pressurized cylinder, ball valve 9 group's of closing pipelines 8, the work master cylinder of preceding brake circuit is transferred in the pressurized cylinder.Because the pressurized cylinder internal diameter is less than the internal diameter of front master cylinder, the hydraulic pressure of its generation is higher than the master cylinder hydraulic pressure of prior art.The hydraulic pressure of back master cylinder generation also is higher than the master cylinder hydraulic pressure of prior art simultaneously.When brake off, the front and back piston forward moves back to reposition, and the oilhole 11 on the pressurized cylinder is opened, and brake fluid is back to pressurized cylinder by the road by wheel cylinder, and enter front master cylinder by pressurized cylinder oilhole 11, again by the front master cylinder compensate opening turn back in the oil storage tank, this moment braking process finish.
Claims (1)
1, a kind of dual line braking master cylinder, comprise the front and back master cylinder (1) that holds together, (2) in each master cylinder independently oil hydraulic circuit is arranged, the hydraulic pressure that back master cylinder produces depends on hydraulic pressure or the thrust that front master cylinder produces, it is characterized in that setting up the pressurized cylinder (3) of an internal diameter with the end that the back master cylinder is connected less than the front master cylinder internal diameter at front master cylinder, set up the charged piston (4) of a band seal ring (10) that matches with pressurized cylinder (3) in the piston tail of front master cylinder, also be provided with a spill port (6) on the front master cylinder, this spill port (6) is by ball valve (7) control of band spring, the level pressure of this ball valve (7) design is 3-5 kilogram f/cm2, be provided with the passage (8) of a connection front master cylinder and pressurized cylinder in charged piston (4) lining, this passage (8) lining is provided with the ball valve (9) of a band spring and controls it and close, and the front portion of pressurized cylinder has an oilhole (11) to communicate with front master cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98240588 CN2352748Y (en) | 1998-09-08 | 1998-09-08 | Double pipe braking main cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98240588 CN2352748Y (en) | 1998-09-08 | 1998-09-08 | Double pipe braking main cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2352748Y true CN2352748Y (en) | 1999-12-08 |
Family
ID=33987547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98240588 Expired - Fee Related CN2352748Y (en) | 1998-09-08 | 1998-09-08 | Double pipe braking main cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2352748Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292088A (en) * | 2015-11-06 | 2016-02-03 | 芜湖稳乐制动系统有限公司 | Self-pressurization type brake master pump assembly |
-
1998
- 1998-09-08 CN CN 98240588 patent/CN2352748Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105292088A (en) * | 2015-11-06 | 2016-02-03 | 芜湖稳乐制动系统有限公司 | Self-pressurization type brake master pump assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101725580B (en) | Hydraulic pressure cylinder | |
| US5927828A (en) | Hydraulic brake system with brake slip control and automatic brake management | |
| US2190238A (en) | Hydrocompound braking system | |
| US4708405A (en) | Brake pressure generator for a hydraulic brake system for use with motor vehicles | |
| GB2072281A (en) | Hydraulic master cylinders | |
| CN2352748Y (en) | Double pipe braking main cylinder | |
| GB2144504A (en) | Brake master cylinder replenishment during wheel slip control | |
| GB2354047A (en) | Hydraulic cylinders | |
| US3237411A (en) | Hydraulic braking systems | |
| ES8105648A1 (en) | Master cylinder for vehicle hydraulic brake - has cylinder with sliding stepped piston and non return and relief valves | |
| JPS54162335A (en) | Hydraulic anti-skid mechanism | |
| CN201531486U (en) | Hydraulic pressurized cylinder | |
| US3973401A (en) | Power-operated boosters for vehicle braking systems | |
| CN2439384Y (en) | Double loop and double tube braking general pump | |
| CN2395946Y (en) | Hydraulic steering booster | |
| US2277292A (en) | Fluid pressure device | |
| CN201521579U (en) | Braking master cylinder | |
| CN110641437A (en) | High-performance hydraulic brake master cylinder | |
| CN205951942U (en) | Brake master cylinder with pre-adjusted output pressure | |
| JP3451542B2 (en) | Oil supply structure of hydraulic / pneumatic conversion intensifier | |
| CN2350263Y (en) | Double line hydraulic brake main cylinder | |
| CN211494014U (en) | Hydraulic booster with brake master cylinder and energy accumulator assembly | |
| CN102039886A (en) | Hydraulic booster | |
| CN212337763U (en) | Hydraulic time-delay valve | |
| EP0346811A3 (en) | Throttle-controlled hydraulic power brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |