CN201015990Y - Novel plunger type main leather cup for the brake master cylinder - Google Patents
Novel plunger type main leather cup for the brake master cylinder Download PDFInfo
- Publication number
- CN201015990Y CN201015990Y CNU2006201495549U CN200620149554U CN201015990Y CN 201015990 Y CN201015990 Y CN 201015990Y CN U2006201495549 U CNU2006201495549 U CN U2006201495549U CN 200620149554 U CN200620149554 U CN 200620149554U CN 201015990 Y CN201015990 Y CN 201015990Y
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- CN
- China
- Prior art keywords
- outer lip
- primary cup
- oil channel
- piston
- oil
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- Expired - Fee Related
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- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model relates to a new plunger braking primary cup for master cylinder, which belongs to the technical field of vehicle braking. The thickness of outer lip is from 0.5 to 0.8mm. The sealing face of an inner lip 2 matching with a piston has a certain sealing length ranging from 2 to 3mm and has 5 to 20 strips of oil storage sealing circle. A circle of supporting ring preventing the primary cup from serial movement under the friction force or hydraulic pressure is arranged between the outer lip and the inner lip. The supporting ring is provided with an oil channel opening 1 and an oil channel opening 2; and the depth of the oil channel opening 2 is three to six times of the depth of the oil channel opening 1. The primary cup bottom is provided with five to eight oil channel openings 3. The supporting ring is 0.8 to 1.5mm higher than the outer lip and the inner lip is 0.4 to 1mm lower than the outer lip. The utility model has the advantages of novel structure, good sealing performance and durability.
Description
Technical field
The utility model belongs to the automobile brake technical field, is applied on the novel plunger-type master brake cylinder.
Background technology
Primary cup is the critical component of automobile braking master cylinder, first and second pistons of it and master brake cylinder form two high pressure chests, when moving forward under the promotion of piston at treadle effort, pressure chamber is to the brake piping delivery hydraulic pressure of car load, thus the effect of realization automobile brake.
Traditional master brake cylinder has the master brake cylinder of central valve formula and compensation cellular type etc., as shown in Figure 1 and Figure 2, this class master cylinder is to be embedded on two pistons of master brake cylinder with leather cup, and, produce by the interference fit of the outer lip limit of leather cup and Master cylinder body main aperture and with the interference fit of piston channel external diameter and to seal along with piston slides in the Master cylinder body main aperture.Because the number of times of piston and leather cup motion is the number of times of braking automobile just, then requires leather cup to need durability, so the outer lip of leather cup will have certain thickness could guarantee fatigue resistance, as Fig. 3, so,, replenish just difficulty of braking liquid to pressure chamber when the moment of piston return.
Summary of the invention
The utility model provides a kind of novel plunger-type master brake cylinder primary cup, and is big with the outer lip thickness that solves leather cup, when the moment of piston return, replenishes the problem of braking liquid difficulty to pressure chamber.The technical scheme that the utility model is taked is: outer lip 5 thickness are at the 0.5-0.8 millimeter, the epipharynx 2 sealing surface seal length 2-3 millimeters that cooperate with piston, and 5-20 bar oil storage seal ring 6 is arranged on this epipharynx sealing surface, be provided with between this outer lip and epipharynx that a circle prevents that primary cup is subjected to friction or hydraulic coupling and the support ring 1 of going here and there, on this support ring, be provided with oil canal mouth 1 and oil canal mouth 24, and the degree of depth of this oil canal 24 is 3-6 times of oil canal one 3 degree of depth, the primary cup bottom surface is provided with 5～8 oil canal mouths 36, this support ring 1 is higher than 0.8～1.5 millimeter of outer lip, and epipharynx 2 is lower than 0.4～1 millimeter of outer lip.
When the utility model uses, it is embedded in the Master cylinder body main aperture wall groove, as Fig. 6, not along with piston motion, the outer lip of leather cup does not stress relatively, in order to replenish braking liquid can for fully the high pressure chest of master brake cylinder in the moment of return piston stroke, make the outer lip limit of primary cup thin, its thickness is 1/2 of traditional primary cup outer lip.For avoid seesawing under the driving of the friction drag of piston, the centre is provided with bracing ring, and design has oil duct junction on the bracing ring; For increasing service life, strengthened primary cup and piston in the length that is sealed and matched, be the enhanced leaktightness performance, on the inwall of leather cup, increased several seal ring.
Principle of work of the present utility model is: the first piston that is delivered to master brake cylinder when auto pedal power by the master cylinder push rod of servo-unit, and make the advancing of piston, when the repairing aperture is crossed the primary cup lagging dege, leak tightness by primary cup makes two pressure chambers of master brake cylinder set up higher pressure, as Fig. 6.When braking is removed, piston is under the ordering about of spring resistance, return to off working state gradually, moment when piston is not also got back to the primary cup lagging dege, braking liquid in the pipeline can not be returned to pressure chamber rapidly, make the pressure chamber of master brake cylinder produce vacuum, at this moment because the outer lip limit of primary cup is thinner, under ordering about, the vacuum of pressure chamber more easily produces shrinkage distortion, common pressure chamber can be passed through the outer lip place of primary cup rapidly to the additional braking liquid of high pressure chest thus, when piston returns to initial position, advancing by piston again, the fluid infusion hole replenishes braking liquid, in order to finishing braking next time.
The utility model has the advantages that: novel structure, directly be embedded in the master cylinder hole wall groove, because outer lip is thinner, when braking was removed, piston can replenish braking liquid to high pressure chest by the outer lip limit of primary cup rapidly in the moment that does not turn back to initial position; Good leak tightness is arranged; Better endurance quality is arranged, and its durability times can reach 1,000,000 times more than, is equivalent to more than 40 ten thousand kilometers of running cars.
Description of drawings
Fig. 1 is traditional compensation cellular type master brake cylinder;
Fig. 2 is traditional central valve formula master brake cylinder;
Fig. 3 is traditional compensation orifice and central valve formula master brake cylinder primary cup structural representation;
Fig. 4 is the utility model structural representation;
Fig. 5 is the partial enlarged drawing of the utility model inner seal ring band;
Fig. 6 is the utility model mode of operation reference view.
The specific embodiment
Referring to Fig. 4, Fig. 5 and Fig. 6, outer lip 5 thickness are at the 0.5-0.8 millimeter, the epipharynx 2 sealing surface seal length 2-3 millimeters that cooperate with piston, and 5-20 bar oil storage seal ring 6 is arranged on this epipharynx sealing surface, be provided with between this outer lip and epipharynx that a circle prevents that primary cup is subjected to friction or hydraulic coupling and the support ring 1 of going here and there, on this support ring, be provided with oil canal mouth 1 and oil canal mouth 24, and the degree of depth of this oil canal 24 is 3-6 times of oil canal one 3 degree of depth, the primary cup bottom surface is provided with 5～8 oil canal mouths 36, this support ring 1 is higher than 0.8～1.5 millimeter of outer lip, and epipharynx 2 is lower than 0.4～1 millimeter of outer lip.
Claims (1)
1. novel plunger-type master brake cylinder primary cup, it is characterized in that: outer lip (5) thickness is at the 0.5-0.8 millimeter, the epipharynx that cooperates with piston (2) sealing surface seal length 2-3 millimeter, and 5-20 bar oil storage seal ring (6) is arranged on this epipharynx sealing surface, be provided with between this outer lip and epipharynx that a circle prevents that primary cup is subjected to friction or hydraulic coupling and the support ring (1) of going here and there, on this support ring, be provided with oil canal mouth one (3) and oil canal mouth two (4), and the degree of depth of this oil canal two (4) is 3-6 times of oil canal one (3) degree of depth, the primary cup bottom surface is provided with 5～8 oil canal mouths three (6), this support ring (1) is higher than 0.8～1.5 millimeter of outer lip, and epipharynx (2) is lower than 0.4～1 millimeter of outer lip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201495549U CN201015990Y (en) | 2006-12-14 | 2006-12-14 | Novel plunger type main leather cup for the brake master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201495549U CN201015990Y (en) | 2006-12-14 | 2006-12-14 | Novel plunger type main leather cup for the brake master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201015990Y true CN201015990Y (en) | 2008-02-06 |
Family
ID=39056470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201495549U Expired - Fee Related CN201015990Y (en) | 2006-12-14 | 2006-12-14 | Novel plunger type main leather cup for the brake master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201015990Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102803035A (en) * | 2009-06-16 | 2012-11-28 | 罗伯特博世有限公司 | Cup of a master cylinder, a master cylinder provided with such cups |
| CN102869553A (en) * | 2010-05-04 | 2013-01-09 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Master cylinder for a hydraulic motor vehicle brake system |
| CN101746367B (en) * | 2008-12-19 | 2013-12-04 | 罗伯特博世有限公司 | Motor vehicle brake master cylinder seal |
| CN106353083A (en) * | 2016-09-30 | 2017-01-25 | 哈尔滨东安实业发展有限公司 | Automatic transmission piston simulation experiment device |
| IT202200009953A1 (en) * | 2022-05-13 | 2023-11-13 | Brembo Spa | Primary seal for cylinder assembly, cylinder assembly |
-
2006
- 2006-12-14 CN CNU2006201495549U patent/CN201015990Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746367B (en) * | 2008-12-19 | 2013-12-04 | 罗伯特博世有限公司 | Motor vehicle brake master cylinder seal |
| CN102803035A (en) * | 2009-06-16 | 2012-11-28 | 罗伯特博世有限公司 | Cup of a master cylinder, a master cylinder provided with such cups |
| CN102803035B (en) * | 2009-06-16 | 2015-08-19 | 罗伯特博世有限公司 | Leather cup and the master cylinder being equipped with this leather cup of master cylinder |
| CN102869553A (en) * | 2010-05-04 | 2013-01-09 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Master cylinder for a hydraulic motor vehicle brake system |
| CN102869553B (en) * | 2010-05-04 | 2015-11-25 | 大陆-特韦斯贸易合伙股份公司及两合公司 | For the master cylinder of automotive hydraulic brake system |
| CN106353083A (en) * | 2016-09-30 | 2017-01-25 | 哈尔滨东安实业发展有限公司 | Automatic transmission piston simulation experiment device |
| CN106353083B (en) * | 2016-09-30 | 2018-08-14 | 哈尔滨东安实业发展有限公司 | A kind of automatic transmission piston nature imitation experiment device |
| IT202200009953A1 (en) * | 2022-05-13 | 2023-11-13 | Brembo Spa | Primary seal for cylinder assembly, cylinder assembly |
| WO2023218366A1 (en) * | 2022-05-13 | 2023-11-16 | Brembo S.P.A. | Primary gasket for a cylinder assembly, cylinder assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20101214 |