CN1215008A - Hydraulic brake booster for vehicle - Google Patents
Hydraulic brake booster for vehicle Download PDFInfo
- Publication number
- CN1215008A CN1215008A CN 97108268 CN97108268A CN1215008A CN 1215008 A CN1215008 A CN 1215008A CN 97108268 CN97108268 CN 97108268 CN 97108268 A CN97108268 A CN 97108268A CN 1215008 A CN1215008 A CN 1215008A
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- oil
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Abstract
The present invention relates to an improved vehicle hydraulic brake booster, belonging to the field of vehicle brake control technology. Said booster consists of oil cylinder, piston and oil tank. The end face area of one end of the piston towards inlet valve core is several times greater than step area of ring surface of its another end, so that the provided oil pressure canbe raised by several times, and its oil groove valve core towards inlet end also possesses a regulating screw which can be used for regulating flow delay and returned oil liquid, so that it can provide more enough oil quantity for subsequent braking to implement effective braking. Besides, said booster also possesses the characteristics of reliable service life and high safety coefficient.
Description
The present invention is a kind of improved hydraulic brake booster for vehicle, belongs to the vehicle braking control technical field, is particularly useful for hydraulic vehicle braking.
The increasing people of making of traffic accident throw doubt upon to the existing situation of car brakeing, so the relevant various improvement projects of improving motor vehicle braking system are brought into schedule successively, for example hydraulic brake is provided with vacuum pump and enlarges operating cylinder and is subjected to the fluid power area to strengthen braking or the like to automobile.Known to oil cylinder, the vehicle hydraulic brake booster that piston and fuel tank are formed is exactly this new design, but vacuum pump is by the driving engine work done.Thereby also be subjected to the restriction of engine power, and if engine speed is low, the oil consumption height, it is poor then to brake fluid power, and during engine off, not only braking effect disappears, and also the overslaugh manpower continues the acting braking.One of cause that traffic accident that Here it is is increased only adopt to increase operating cylinder and is subjected to the fluid power area then oil mass is under-supply, if only increase then manpower Ji down again of former moving pump oil mass, out of reach hydraulic pressure dynamics and then out of reach are effectively braked.
Thereby the purpose of this invention is to provide a kind of hydraulic brake booster for vehicle that can effectively provide enough oil mass oil pressure can obtain the effective braking of enough braking strength realizations.
The present invention realizes like this, with reference to Fig. 1-3, hydraulic brake booster for vehicle has oil inlet (18), the oil cylinder (16) of oil outlet (19) and have the piston (5) of spring (14) and hydraulic brake booster for vehicle that fuel tank (15) is formed, wherein two oil circuit pipes are logical and be respectively equipped with valve (1 between the inner chamber of oil cylinder (16) and the fuel tank (15), 11), the end that one end of piston (5) band spring (14) connects towards oil cylinder (16) inner chamber and fuel tank (15) pipe, improvements are, piston (5) is promptly directly round towards oil inlet (18) one end end faces towards the other end of spring (14) one ends less than piston towards the end plug column section circle footpath of spring (14), and form a ring-shaped step (17) with this end, above-mentioned spring (14) is connected an end with piston (5) the other end connects a slide block (20) that can slide at oil cylinder (16) inner chamber, so above-mentioned piston (5) constitutes grease chamber (A) towards the corresponding bottom surface with oil cylinder (16) inner chamber of oil inlet (18) one end end faces, the corresponding bottom surface with oil cylinder (16) inner chamber of piston (5) step (17) constitutes grease chamber (B), constitute grease chamber (C) between piston (5) and spring (14) bonded assembly one end end face and the slide block (20), wherein grease chamber (A) end and oil inlet (18) oil duct pipe are logical and be provided with the valve (6) of taking back a spring, on oil cylinder (16) cylinder body of corresponding valve (6) plus-minus screw (7) is housed, grease chamber (A) other end is logical and be provided with the valve (8) of taking back a spring on the stick harness internal oil channel through piston (5) internal oil channel and oil outlet (19) oil duct pipe, annulated column formula cavity and oil outlet (19) oil duct pipe were logical in grease chamber (B) was, grease chamber (C) is logical with fuel tank (15) pipe respectively towards the both sides of slide block (20) one ends, wherein a side oil duct is provided with the valve (1) of taking back a spring, the oil cylinder (16) of corresponding valve 1 on but the addendum cone (2) of roof pressure spool is housed, the opposite side oil duct is provided with the spool (11) of taking back a spring, on oil cylinder (16) cylinder body of corresponding spool (11) plus-minus screw (12) is housed, also be provided with wedge shape step on above-mentioned piston (5) pipe pass-out hydraulic fluid port (18) the one end plug posts around cylinder, by step outside oil cylinder (16) cylinder body, be provided with one with above-mentioned addendum cone (2) parallel alley to overhanging fore-set (4), be provided with one between fore-set (4) and the addendum cone (2) and control lever (3).The oil inlet (18) of the vehicle hydraulic blwr of said structure connects with vehicle hydraulic master cylinder output circuit pipe, its oil outlet (19) is logical with execution hydraulic pressure wheel cylinder input oil circuit pipe, during work, master cylinder is stepped at manpower and is started under the effect of stopping and pressure oil that delivery pressure fluid enters the cylinder internal oil channel of oil cylinder (16) through this device oil inlet (18) is washed gap between spool (6) and cylinder body open and flowed into oil cylinder (16) plunger shaft in promotion piston (15) as shown in Figure 2 in the above-mentioned grease chamber (A) and move to left and make the spool of filling on the internal oil channel (8) close oil duct, provide power-assisted to supply with so the fluid in grease chamber (B) forms high pressure oil under the extruding of the piston that moves to left (15) through oil outlet (19) output and carry out wheel cylinder and brake wheel execution drag, because piston step (17) anchor ring area than the little several times of the stressed face area of piston (5), is realized enough braking strength and effectively braking than master brake cylinder oil pressure height with the braking fluid of equimultiple so this blwr is exportable.
As described above when piston (5) under pressure oil promotes during left lateral, fluid pressurized in the grease chamber (C) is washed spool (11) open and is flowed to fuel tank (15), simultaneously, fore-set (4) is depressed at the wedge on piston (5) wedge shape annular groove inclined-plane and is moved and push lever (3) work done and force addendum cone (2) to move down and back down spool (1) to make the fluid in the grease chamber (C) flow into fuel tank (15) from this passage simultaneously.As shown in Figure 3, when the brake task is finished, brake power disappears, when master cylinder stops oil transportation and starts vacuum pump pumpback fluid, spool (6) is under its elastic force effect in the return process, fluid in the grease chamber (A) is taken advantage of spool (6) and is partly refluxed to master cylinder before closing, fluid in fuel tank this moment (15) is back to grease chamber (C) and promotes piston (5) through spool (1) and moves to right, fore-set (4) loses to support and falls after rise simultaneously, fore-set (2) loses the control of lever (3), along with resetting of piston (5), former oil mass is supplied and is promptly gone up overhead-valve core (1) and close valve in the grease chamber (C), simultaneously, and along with moving to right of piston (5), spool (8) is opened, and returns grease chamber (B) covering grease chamber's (B) oil mass and passes the oil duct of spool (8) control and the fluid in grease chamber (A) refluxes towards master cylinder in the lump through the pressure oil of oil outlet (19) output.Here, for the oil mass that ensures that continuous brake is required, installed on oil cylinder (16) cylinder body of corresponding valve (6) can control cock (6) and cylinder body between clearence degree promptly regulate the plus-minus screw (7) of flow to realize the oil mass compensation of delay, to prevent that grease chamber's hole capital after selling all securities from making follow-up braking not enough i.e. " stepping on sky " phenomenon of fuel feeding occur, for this reason, the plus-minus screw (12) of scalable spool (11) opening still has been installed on oil cylinder (16) cylinder body of corresponding spool (11), the plus-minus screw (13) of scalable grease chamber (C) capacity has been installed on the cylinder body of the oil cylinder (16) of corresponding slide block (20).
Below in conjunction with the accompanying drawing illustrated embodiment the present invention is described in detail.
Fig. 1 is the hydraulic brake booster for vehicle structural representation
Fig. 2 is a working state schematic representation;
Fig. 3 is the piston reset scheme drawing.
Among above Fig. 1-3,1-spool 2-addendum cone 3-lever 4-fore-set wherein
5-piston 6-spool 7-plus-minus screw 8-spool 9-plus-minus screw
10-spool 11-spool 12-plus-minus screw 13-plus-minus screw 14-spring
15-fuel tank 16-oil cylinder 17-step 18-oil inlet 19-oil outlet
20-slide block 21-slide block.
Shown in Fig. 1-3, this embodiment of the present invention has an accurate casting system oil cylinder (16) of a metal and a fuel tank (15), in the plunger shaft of oil cylinder (16), has the piston (5) that a size matches and can be free to slide in the chamber, oil cylinder (16) upper right side has oil inlet (18), the below has oil outlet (19), piston (5) has through oil cylinder (16) cylinder body and above-mentioned oil inlet (18), the logical oil duct of oil outlet (19) pipe, the taper valve core (6) that device one is taken back a spring on the oil duct between piston (5) and the oil inlet (18), axial device is taken back the spool (8) of a spring in the oil duct of the interior corresponding spool (6) of piston (5), piston (5) is directly round greater than the cross section of the other end towards spool (6) one end plug column sections circle footpath, so its stage casing forms a ring-shaped step (17), annulated column shape cavity grease chamber (B) in ring-shaped step (17) constitutes with the cylinder cavity bottom surface, and piston (5) cylindrical cavity grease chamber (A) in the end face of spool (6) and cylinder cavity bottom surface constitute, grease chamber (C) then be by piston (5) towards the other end end face of same spool (6) one ends with place cylinder cavity towards the other end termination of valve (6) one ends with the inner chamber size that mate and cylindrical slider (20) that can in inner chamber, the be free to slide formation of being separated by, connection one has the spring (14) of good rebound performance between the two, the oil cylinder (16) of corresponding slide block (20) thus on the cylinder body in the ecto-entad device one scalable slide block the sliding degree of depth regulate the plus-minus screw (13) of channel capacity, the oil pipeline of drawing by fuel tank (15) two-way with interior cylindrical cavity two sides of oil cylinder (16) the warp-wise oil duct pipeline that communicates with grease chamber (C) and the spool (1 of taking back a spring is housed respectively, 11), establish one in the oil duct of wherein corresponding spool (11) and is connected with the spring of spool (11), establish interior sliding degree of depth adjustment spool (11) the keying degree of a plus-minus screw (12) then by adjustment slide block (21) with the slide block (21) of oil hole through coupling.And axially establish an addendum cone (2) at spool (1) in oil cylinder (16) oil duct of corresponding spool (1), on addendum cone (2), establish the lever (3) that a may command spool (1) opens and closes, the other end below of lever (3) has a fore-set (4) that can slide up and down on oil cylinder (16) cylinder body conduit, fore-set (4) bottom wedgewise, the wedge shape annular groove that matches is set on the cooresponding with it piston boit, make its with plug can be by surface slope when mobile change promotion fore-set (4) thus move up and down and lever (3), addendum cone (2) is formed a may command spool (1) and is moved up and down the lever control mechanism of realizing keying, and the point device of this lever (3) is on oil cylinder (16) cylinder body between addendum cone (2) and the fore-set (4).Consider that the high pressure oil oil pressure of being exported by grease chamber (B) in the mode of operation might raise too quickly, the oil mass of discharging is crossed foot and is caused damage to reaching the plug inner component in the cylinder, present embodiment is also established an overvoltage excessive fluid return flow line and establish a spool (10) of taking back a spring on passage on oil cylinder (16) cylinder body between oil outlet (19) and grease chamber (A), equally, also install on the oil cylinder (16) of corresponding spool (10) one can be by compression retracteding position spring regulating spool and cylinder body between the gap be the plus-minus screw (9) of flow size, it is good through the model machine trial effect to constitute hydraulic brake booster for vehicle of the present invention thus.Not only solved the increase oil mass, thereby the problem that improves oil pressure has obtained better braking effect, and can make flow just right by regulating plus-minus screw (7,12,13), by the spool (10) of regulating plus-minus screw (9) control device being reduced again damages, is protected service life, because the adjusting metering function of plus-minus screw (7), fluid in the oil duct is by the pre-set velocity backflow of slowly delaying time, thereby the brake that makes next round has oil mass to be ensured more fully, thereby has also improved the brake safe coefficient.
Claims (4)
1, a kind of by having oil inlet (18), the oil cylinder (16) of oil outlet (19) and have the piston (5) of spring (14) and hydraulic brake booster for vehicle that fuel tank (15) is formed, wherein two oil circuit pipes are logical and be respectively equipped with valve (1 between the inner chamber of oil cylinder (16) and the fuel tank (15), 11), the end that one end of piston (5) band spring (14) connects towards oil cylinder (16) inner chamber and fuel tank (15) pipe, its domestic animal is levied and is, piston (5) is promptly directly round towards oil inlet (18) one end end faces towards the other end of spring (14) one ends less than piston towards the end plug column section circle footpath of spring (14), and form a ring-shaped step (17) with this end, above-mentioned spring (14) is connected an end with piston (5) the other end connects a slide block (20) that can slide at oil cylinder (16) inner chamber, so above-mentioned piston (5) constitutes grease chamber (A) towards the corresponding bottom surface with oil cylinder (16) inner chamber of oil inlet (18) one end end faces, the corresponding bottom surface with oil cylinder (16) inner chamber of piston (5) step (17) constitutes grease chamber (B), constitute grease chamber (C) between piston (5) and spring (14) bonded assembly one end end face and the slide block (20), wherein grease chamber (A) end and oil inlet (18) oil duct pipe are logical and be provided with the valve (6) of taking back a spring, on oil cylinder (16) cylinder body of corresponding valve (6) plus-minus screw (7) is housed, grease chamber (A) other end is logical and be provided with the valve (8) of taking back a spring on the stick harness internal oil channel through piston (5) internal oil channel and oil outlet (19) oil duct pipe, annulated column formula cavity and oil outlet (19) oil duct pipe were logical in grease chamber (B) was, grease chamber (C) is logical with fuel tank (15) pipe respectively towards the both sides of slide block (20) one ends, wherein a side oil duct is provided with the valve (1) of taking back a spring, the oil cylinder (16) of corresponding valve 1 on but the addendum cone (2) of roof pressure spool is housed, the opposite side oil duct is provided with the spool (11) of taking back a spring, on oil cylinder (16) cylinder body of corresponding spool (11) plus-minus screw (12) is housed, also be provided with wedge shape step on above-mentioned piston (5) pipe pass-out hydraulic fluid port (18) the one end plug posts around cylinder, by step outside oil cylinder (16) cylinder body, be provided with one with above-mentioned addendum cone (2) parallel alley to overhanging fore-set (4), be provided with one between fore-set (4) and the addendum cone (2) and control lever (3).
2, hydraulic brake booster for vehicle according to claim 1 is characterized in that being provided with between described grease chamber (A) and the oil outlet (19) the oil return oil duct that the valve (10) of taking back a spring is installed.
3,, it is characterized in that on oil cylinder (16) cylinder body of corresponding valve (10) plus-minus screw (9) being housed also according to claim 1 and 2 described hydraulic brake booster for vehicle.
4, hydraulic brake booster for vehicle according to claim 1 is characterized in that on oil cylinder (16) cylinder body of corresponding slide block (20) plus-minus screw (13) being housed also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97108268 CN1215008A (en) | 1997-10-22 | 1997-10-22 | Hydraulic brake booster for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97108268 CN1215008A (en) | 1997-10-22 | 1997-10-22 | Hydraulic brake booster for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1215008A true CN1215008A (en) | 1999-04-28 |
Family
ID=5170280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97108268 Pending CN1215008A (en) | 1997-10-22 | 1997-10-22 | Hydraulic brake booster for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1215008A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100400349C (en) * | 2005-03-31 | 2008-07-09 | 日信工业株式会社 | Vehicle braking device |
| CN100404337C (en) * | 2004-02-06 | 2008-07-23 | 张文建 | Automobile hydraulic booster |
| CN1840394B (en) * | 2005-03-31 | 2010-05-12 | 日信工业株式会社 | Fluid pressure booster |
| CN104879526A (en) * | 2015-05-13 | 2015-09-02 | 北汽福田汽车股份有限公司 | Valve and oil supply system |
| CN110386121A (en) * | 2018-04-18 | 2019-10-29 | 武汉嘉琪新扬科技发展有限公司 | A kind of hydraulic assisting brake voltage-regulating system for vehicle |
| CN110386120A (en) * | 2018-04-18 | 2019-10-29 | 武汉嘉琪新扬科技发展有限公司 | A kind of hydraulic assisting brake voltage-regulating system for motor vehicles |
| CN114458593A (en) * | 2022-01-19 | 2022-05-10 | 湖南机油泵股份有限公司 | Oil pump for variable control through sliding fit of wedge block |
-
1997
- 1997-10-22 CN CN 97108268 patent/CN1215008A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100404337C (en) * | 2004-02-06 | 2008-07-23 | 张文建 | Automobile hydraulic booster |
| CN100400349C (en) * | 2005-03-31 | 2008-07-09 | 日信工业株式会社 | Vehicle braking device |
| CN1840394B (en) * | 2005-03-31 | 2010-05-12 | 日信工业株式会社 | Fluid pressure booster |
| CN104879526A (en) * | 2015-05-13 | 2015-09-02 | 北汽福田汽车股份有限公司 | Valve and oil supply system |
| CN110386121A (en) * | 2018-04-18 | 2019-10-29 | 武汉嘉琪新扬科技发展有限公司 | A kind of hydraulic assisting brake voltage-regulating system for vehicle |
| CN110386120A (en) * | 2018-04-18 | 2019-10-29 | 武汉嘉琪新扬科技发展有限公司 | A kind of hydraulic assisting brake voltage-regulating system for motor vehicles |
| CN110386120B (en) * | 2018-04-18 | 2021-05-11 | 武汉嘉琪新扬科技发展有限公司 | Hydraulic power-assisted brake pressure regulating system for motor vehicle |
| CN110386121B (en) * | 2018-04-18 | 2021-05-11 | 武汉嘉琪新扬科技发展有限公司 | Hydraulic power-assisted brake pressure regulating system for vehicle |
| CN114458593A (en) * | 2022-01-19 | 2022-05-10 | 湖南机油泵股份有限公司 | Oil pump for variable control through sliding fit of wedge block |
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Legal Events
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |