CN100497055C - Hydraulic booster composite braking valve for automobile - Google Patents
Hydraulic booster composite braking valve for automobile Download PDFInfo
- Publication number
- CN100497055C CN100497055C CNB2007100487722A CN200710048772A CN100497055C CN 100497055 C CN100497055 C CN 100497055C CN B2007100487722 A CNB2007100487722 A CN B2007100487722A CN 200710048772 A CN200710048772 A CN 200710048772A CN 100497055 C CN100497055 C CN 100497055C
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- China
- Prior art keywords
- valve
- check valve
- valve body
- pressure check
- hole
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- Expired - Fee Related
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Abstract
A combined hydraulically boosted braking valve for car is composed of a boosting cylinder with big and small cavities, a high-pressure one-way valve, a low-pressure one-way valve, an exhaust valve, and a valve body.
Description
Technical field
The utility model relates to a kind of hydraulic booster composite braking valve for automobile, belongs to the hydraulic braking system for automobile field of components.
Background technology
In the present hydraulic braking system for automobile both domestic and external, extensively adopt vacuum intensifier, degree of vacuum when it utilizes automotive engine work in the air inlet pipe is as propulsion source, alleviate the treadle effort of chaufeur, effect is better, but complex structure, volume are big, maintenance difficult, and engine off promptly loses the reinforcement function, and oil consumption be the more important thing is the anti-function of embracing of its no wheel.
Summary of the invention
The purpose of this utility model is to provide a kind of hydraulic booster composite braking valve for automobile at the deficiencies in the prior art.Be characterized in that it has the reinforcement function of vacuum intensifier, be not subjected to engine starting whether restriction, fuel-efficient, at the automobile emergency glancing impact, prevent wheel lockup and produce defective steering stabilizer, whipping, can substitute vacuum intensifier.
The purpose of this utility model is realized by following technical measures:
Hydraulic booster composite braking valve for automobile comprises pressurized cylinder I, high pressure check valve II, low pressure check valve III, these three major parts are encapsulated in the valve body, one end of combination valve import is connected with the automobile main pump, the other end is communicated with the import of pressurized cylinder, high pressure check valve, low pressure check valve, high pressure check valve, low pressure check valve are converged the back and are communicated with the big chamber of pressurized cylinder, the loculus of pressurized cylinder is communicated with automobile front and rear wheel wheel cylinder, exhaust bolt is screwed in the screw of valve body, screw and the conducting of automobile front and rear wheel wheel cylinder; Glancing impact, the braking liquid of brake main pump enters from the combination valve import, arrives the automobile brake wheel cylinder through the inner passage of valve body by the combination valve outlet; Progressively rising along with main pump pressure, when its pressure during greater than the response pressure of high pressure check valve II, open high pressure check valve II, and low pressure check valve III closes, the main pump braking liquid enters pressurized cylinder I by high pressure check valve II, promotes piston motion, because piston two ends compression area difference, be the different D of diameter in chamber, place, piston two ends〉d, so supercharging the brake-pressure of wheel cylinder; When cancelling glancing impact, piston is return by the combined action of retracing spring in wheel cylinder brake-pressure and the pressurized cylinder I backward, and this moment, high pressure check valve II closed, and low pressure check valve III opens, the wheel cylinder braking liquid returns the main pump lubricating cup by low pressure check valve III, the circulation of finishing the work.
The seal ring of pressurized cylinder is packed in the groove of cylinder sleeve, pack into the hole inner bottom part of valve body of seal ring, ring set is loaded on piston in the hole of valve body in the groove of piston, gasket sleeve is contained on the plug, plug is screwed in the screw of valve body, and seal ring is packed in the inside groove of cylinder sleeve, and the spring core is screwed in the screw of cylinder sleeve, seal ring is contained in the groove of cylinder sleeve, spring is encased in the hole of piston, and gasket sleeve is contained on the cylinder sleeve, said modules is screwed in the hole of valve body then.
The valve seat of high pressure check valve press-fits in the endoporus of high pressure check valve body bottom with interference fit, spool is loaded in the hole of valve seat, spool and valve seat bedding-in, spring housing is contained on the spool, ring set is in the groove of valve body, and pad is loaded in the hole of plug, and gasket sleeve is contained on the plug, plug is screwed in the screw of valve body, and above-mentioned parts integral body is packed in the hole of valve body.
The valve seat of low pressure check valve press-fits in the endoporus of check valve body bottom with interference fit, spool is loaded in the hole of valve seat, spool and valve seat bedding-in, spring housing is contained on the spool, and packing ring is loaded in the hole of valve body and props up spring, and trip ring is packed in the valve body groove, ring set is in the groove of valve body, gasket sleeve is contained on the plug, and plug is screwed in the screw of valve body, and above-mentioned parts integral body is packed in the hole of valve body.
Be drilled with hole U and V in the plug, the U-V-K conducting connects compression indicator at screw thread M place.
The utlity model has following advantage:
1, hydraulic booster composite braking valve for automobile have simple in structure, volume is little, easily manufactured, cost is low, easy installation and maintenance, can substitute vacuum intensifier.
2, be not subjected to engine starting whether restriction, fuel-efficient, at the automobile emergency glancing impact, prevent wheel lockup and produce potential safety hazards such as defective steering stabilizer, whipping.
Description of drawings
Fig. 1 is the expansion drawing of hydraulic booster composite braking valve for automobile.
Fig. 2 is a hydraulic booster composite braking valve for automobile A-A cutaway view.
Fig. 3 is a hydraulic booster composite braking valve for automobile B-B cutaway view.
1. exhaust bolt, 2. valve body, 3.5.7.8.14.28.31. seal ring, 4. cylinder sleeve, 6. piston, 9.18.24. spring, 10. spring core, 11. cylinder sleeve, 12.19.20.23.27.32. packing ring, 13. low pressure check valve bodies, 15. the low pressure check valve seat, 16.25. low pressure check valve core, 17.22.30. plug, 18. spring, 21. circlips, 25. high pressure spools, 26. the high pressure check valve body, the unidirectional valve seat of 29. high pressure, 33.34.35. holding screw.
The specific embodiment
Below by embodiment the utility model is carried out concrete description, can not be interpreted as restriction the utility model protection domain.
The utlity model has simple in structure, volume is little, easily manufactured, shown in Fig. 1～3.Hydraulic booster composite braking valve for automobile contains pressurized cylinder, high pressure check valve, low pressure check valve and blow off valve, each valve is loaded in the valve body 2, one end of combination valve import is connected with the automobile main pump, the other end is communicated with the import of pressurized cylinder, high pressure check valve, low pressure check valve, high pressure check valve, low pressure check valve are converged the back and are communicated with the big chamber of pressurized cylinder, the pressurized cylinder loculus is communicated with automobile front and rear wheel wheel cylinder, and exhaust bolt 1 is screwed in the screw of valve body 2, screw and the conducting of automobile front and rear wheel wheel cylinder.
The seal ring 5 of pressurized cylinder I is packed in the hole of cylinder sleeve 4, pack into the hole inner bottom part of valve body 2 of seal ring 3, seal ring 31 is sleeved in the groove of piston 6, piston 6 is loaded in the hole of valve body 2, packing ring 32 is sleeved on the plug 30, plug 30 is screwed in the screw of valve body 2, seal ring 8 is packed in the inside groove of cylinder sleeve 11, spring core 10 is screwed in the screw of cylinder sleeve 11, seal ring 7 is contained in the groove of cylinder sleeve 11, spring 9 is encased in the hole of piston 6, and packing ring 12 is sleeved on the cylinder sleeve 11, said modules is screwed in the hole of valve body 2 then.
The valve seat 29 of high pressure check valve II press-fits in the endoporus of one-way high-pressure check valve body 26 bottom with interference fit, spool 25 is loaded in the hole of valve seat 29, spool 25 and valve seat 29 bedding-ins, spring 24 is sleeved on the spool 25, seal ring 28 is sleeved in the groove of valve body 26, and pad 23 is loaded in the hole of plug 22, and packing ring 27 is sleeved on the plug 22, plug 22 is screwed in the screw of valve body 2, and above-mentioned parts integral body is packed in the hole of valve body 2.
The valve seat 15 of low pressure check valve III press-fits in the endoporus of check valve body 13 bottom with interference fit, spool 16 is loaded in the hole of valve seat 15, spool 16 and valve seat 15 bedding-ins, spring 18 is sleeved on the spool 16, and packing ring 20 is loaded in the hole of valve body 13 and props up spring 18, and trip ring 21 is packed in valve body 13 grooves, seal ring 14 is set in the groove of valve body 13, packing ring 19 is sleeved on the plug 17, and plug 17 is screwed in the screw of valve body 2, and above-mentioned parts integral body is packed in the hole of valve body 2.
Be drilled with hole U and V in the plug 30, the U-V-K conducting connects compression indicator at screw thread M place.
The utility model is achieved in that
The automobile main pump pumps into the combination valve import with braking liquid, before passage a-b-c-d enters automobile by the combination valve outlet, the trailing wheel wheel cylinder, at this moment, the brake-pressure of wheel cylinder is less than the response pressure of high pressure check valve II, identical with main pump pressure, the braking liquid of main pump supply simultaneously enters low pressure check valve through passage e, because the directivity of low pressure check valve III, the e-h passage disconnects, and enters the high pressure check valve through passage a-f, if the power that hydraulic coupling is set greater than high pressure check valve spring 24, passage f-g-k is open-minded, if the power that hydraulic coupling is set less than spring 24, passage f-g disconnects, and has only when main pump pressure continues to be increased to the pressure of setting greater than high pressure check valve spring 24, passage f-g-k is open-minded, the main pump braking liquid enters the k chamber of pressurized cylinder I, promotes piston 6 to left movement, and the c chamber brake fluid pressure of pressurized cylinder is risen
Doubly, i is a rate of supercharging, and D is a big chamber diameter of piston, d
1Be the loculus diameter of piston, enter wheel cylinder through the outlet of passage d combination valve again, wheel cylinder is braked with i times of main pump delivery pressure, until tire locking, parking; When cancelling glancing impact, piston 6 is subjected under the elastic force combined action of retracing spring 9 in the hydraulic coupling of wheel cylinder and the pressurized cylinder I, piston is return to the right, and this moment, the high pressure check valve did not have pressure because of f-a passage off-load, closed under the effect of spring 24, passage g-f is obstructed, the braking liquid in k chamber backs down the spool 16 of low pressure check valve by passage k-h, makes the braking liquid in k chamber return the main pump lubricating cup through the h-e passage, returns original position until piston 6, be close to plug 30 end faces, working cycle is finished.
Claims (5)
1, a kind of hydraulic booster composite braking valve for automobile, it is characterized in that this combination valve comprises pressurized cylinder I, high pressure check valve II, low pressure check valve III, these three major parts all are encapsulated in the valve body (2), one end of the import of combination valve is connected with the automobile main pump, the other end and pressurized cylinder, the high pressure check valve, the import of low pressure check valve is communicated with, the high pressure check valve, one end of low pressure check valve is communicated with the big chamber of pressurized cylinder, before pressurized cylinder loculus and the automobile, the trailing wheel wheel cylinder connects, exhaust bolt (1) is screwed in the screw of valve body (2), before screw and the automobile, the conducting of trailing wheel wheel cylinder; Glancing impact, the braking liquid of brake main pump enters from the combination valve import, arrives the automobile brake wheel cylinder through the inner passage of valve body (2) by the combination valve outlet; Progressively rising along with main pump pressure, when its pressure during greater than the response pressure of high pressure check valve II, open high pressure check valve II, and low pressure check valve III closes, the main pump braking liquid enters pressurized cylinder I by high pressure check valve II, promotes piston (6) motion, because piston (6) two ends compression area difference, be the different D of diameter in chamber, piston (6) place, two ends〉d, so supercharging the brake-pressure of wheel cylinder; When cancelling glancing impact, piston (6) is return by the combined action of retracing spring (9) in wheel cylinder brake-pressure and the pressurized cylinder I backward, and this moment, high pressure check valve II closed, and low pressure check valve III opens, the wheel cylinder braking liquid returns the main pump lubricating cup by low pressure check valve III, the circulation of finishing the work.
2, hydraulic booster composite braking valve for automobile according to claim 1, the seal ring (5) that it is characterized in that pressurized cylinder is packed in the groove of cylinder sleeve (4), pack into the hole inner bottom part of valve body (2) of seal ring (3), seal ring (31) is sleeved in the groove of piston (6), piston (6) is loaded in the hole of valve body (2), packing ring (32) is sleeved on the plug (30), plug is screwed in the screw of valve body (2), seal ring (8) is packed in the inside groove of cylinder sleeve (11), spring core (10) is screwed in the screw of cylinder sleeve (11), seal ring (7) is contained in the groove of cylinder sleeve (11), spring (9) is encased in the hole of piston (6), packing ring (12) is sleeved on the cylinder sleeve (11), said modules is screwed in the hole of valve body (2) then.
3, hydraulic booster composite braking valve for automobile according to claim 1, the valve seat (29) that it is characterized in that the high pressure check valve press-fits endoporus bottom in one-way high-pressure check valve body (26) with interference fit, spool (25) is loaded in the hole of valve seat (29), spool (25) and valve seat (29) bedding-in, spring (24) is sleeved on the spool (25), seal ring (28) is sleeved in the groove of valve body (26), pad (23) is loaded in the hole of plug (22), packing ring 27 is sleeved on the plug (22), plug (22) is screwed in the screw of valve body (2), and above-mentioned parts integral body is packed in the hole of valve body (2).
4, hydraulic booster composite braking valve for automobile according to claim 1, the valve seat (15) that it is characterized in that low pressure check valve press-fits endoporus bottom in check valve body (13) with interference fit, spool (16) is loaded in the hole of valve seat (15), spool (16) and valve seat (15) bedding-in, spring (18) is sleeved on the spool (16), packing ring (20) is loaded in the hole of valve body (13) and props up spring (18), trip ring (21) is packed in valve body (13) groove, seal ring (14) is set in the groove of valve body (13), packing ring (19) is sleeved on the plug (17), plug (17) is screwed in the screw of valve body (2), and above-mentioned parts integral body is packed in the hole of valve body (2).
5, hydraulic booster composite braking valve for automobile according to claim 1 is characterized in that being drilled with hole U and V in the plug (30), and the U-V-K conducting connects compression indicator at screw thread M place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100487722A CN100497055C (en) | 2007-03-30 | 2007-03-30 | Hydraulic booster composite braking valve for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100487722A CN100497055C (en) | 2007-03-30 | 2007-03-30 | Hydraulic booster composite braking valve for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101028816A CN101028816A (en) | 2007-09-05 |
| CN100497055C true CN100497055C (en) | 2009-06-10 |
Family
ID=38714424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100487722A Expired - Fee Related CN100497055C (en) | 2007-03-30 | 2007-03-30 | Hydraulic booster composite braking valve for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100497055C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103802811B (en) * | 2014-01-27 | 2017-02-15 | 李玉喜 | Automatic circulation system and automatic circulation braking system established by same |
| DE102018202885A1 (en) * | 2018-02-26 | 2019-08-29 | Robert Bosch Gmbh | Multi-circuit hydraulic open brake system, especially for a highly automated or autonomous vehicle |
| DE102019212748A1 (en) * | 2019-08-26 | 2021-03-04 | Robert Bosch Gmbh | Method for estimating the locking pressure in the braking system of a multi-axle vehicle |
| WO2021074663A1 (en) * | 2019-10-14 | 2021-04-22 | Wabco India Limited | Trailer control valve with a leakage protection function for a brake system of a vehicle |
-
2007
- 2007-03-30 CN CNB2007100487722A patent/CN100497055C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101028816A (en) | 2007-09-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20090610 Termination date: 20120330 |