CN202294768U - Vacuum boost system and vehicle - Google Patents
Vacuum boost system and vehicle Download PDFInfo
- Publication number
- CN202294768U CN202294768U CN201120400140XU CN201120400140U CN202294768U CN 202294768 U CN202294768 U CN 202294768U CN 201120400140X U CN201120400140X U CN 201120400140XU CN 201120400140 U CN201120400140 U CN 201120400140U CN 202294768 U CN202294768 U CN 202294768U
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- vacuum
- pipeline
- booster
- chamber
- vacuum booster
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Abstract
The utility model discloses a vacuum power system, which comprises a first vacuum booster, a second vacuum booster, a vacuum pump and a vacuum tank, wherein the vacuum boost system comprises a first pipeline, a second pipeline and a third pipeline; the vacuum tank comprises a first chamber and a second chamber which are mutually isolated; the first vacuum booster is communicated with the first chamber by the first pipeline; the second vacuum booster is communicated with the second chamber by the second pipeline; the second pipeline is communicated with the vacuum pump; the first pipeline is communicated with the second pipeline by a third pipeline; and a one-way valve for vacuumizing the first chamber and the first vacuum booster by the vacuum pump is arranged in the third pipeline. The utility model also provides a vehicle, which comprises the vacuum boost system. When the second pipeline leaks, the vacuum of the first chamber can be kept due to arrangement of the one-way valve, thus vacuum is temporarily provided for the first vacuum booster by the first pipeline so as to continue providing boost.
Description
Technical field
The utility model relates to the vacuum servo system, particularly, relates to a kind of vacuum servo system and the vehicle that comprises this vacuum servo system with two vacuum boosters.
Background technology
At present, be equipped with the vacuum servo system in the vehicle usually, power-assisted to be provided to required operation.For example, (arrow is represented 3 pairs of each parts suctions of vacuum pump among Fig. 2) as depicted in figs. 1 and 2, the vacuum servo system generally includes vacuum booster 1, clutch vacuum booster 2, vacuum pump 3, vacuum reservoir 4 and connecting line P.Wherein, connecting line P can arrange as required, makes vacuum booster 1 and clutch vacuum booster 2 be communicated with vacuum reservoir 4 respectively, and vacuum booster 1, clutch vacuum booster 2 and vacuum reservoir 4 all are communicated with vacuum pump 3.During vacuum pump 3 normal operations, to vacuum booster 1 and clutch vacuum booster 2 vacuum is provided, power-assisted to be provided to required operation.Vacuum reservoir 4 keeps vacuum under the effect of vacuum pump 3, when vacuum pump 3 appearance are unusual, can temporarily keep the operation of vacuum booster 1 and clutch vacuum booster 2 through the vacuum in the vacuum reservoir 4.
But; Owing to be communicated with through connecting line P fluid between each parts; In case thereby connecting line P or certain parts appearance leakage; Then not only can't vacuum be provided, and also charge into gas in the vacuum reservoir 4, can't keep the operation of vacuum booster 1 and clutch vacuum booster 2 through 3 pairs of vacuum boosters of vacuum pump 1 and clutch vacuum booster 2.Therefore, in case connecting line P leaks, then vacuum booster 1 all will lose efficacy with clutch vacuum booster 2.Chaufeur must apply very big power and steps on brake pedal and could obtain limited braking force vehicle is stopped in this case.Therefore, existing vacuum servo system has brought certain risk to vehicle operation.
In addition, some parts of auxiliary braking system also need the vacuum of vacuum servo system to keep operation.For example, braking blow off valve 10 also is communicated in vacuum pump 3 through connecting line P.When connecting line P leaked, auxiliary braking system also was affected and can't normal operation, has further increased danger coefficient.
The utility model content
The purpose of the utility model provides a kind ofly can slow down the vacuum servo system that causes power-assisted to lose efficacy because of pipeline leakage.
To achieve these goals; The utility model provides a kind of vacuum servo system; This vacuum servo system comprises first vacuum booster, second vacuum booster, vacuum pump and vacuum reservoir, and wherein, said vacuum servo system comprises first pipeline, second pipeline and the 3rd pipeline; Said vacuum reservoir comprises first chamber and second chamber of mutual isolation; Said first vacuum booster is communicated with said first chamber through said first pipeline, and said second vacuum booster is communicated with said second chamber through said second pipeline, and said second pipeline is communicated with said vacuum pump; Said first pipeline is provided with in said the 3rd pipeline and allows the check valve of said vacuum pump to said first chamber and the suction of said first vacuum booster through said the 3rd pipeline and said second pipeline connection.
Preferably, said first vacuum booster is a vacuum booster, and said second vacuum booster is the clutch vacuum booster.
Preferably, said vacuum servo system comprises exhaust brake valve and the 4th pipeline, and said exhaust brake valve is through said the 4th pipeline and said second pipeline connection.
The utility model also provides a kind of vehicle, and wherein, this vehicle comprises the vacuum servo system of the utility model.
Pass through technique scheme; When second pipeline took place to leak, owing to be provided with check valve, therefore first chamber still can keep vacuum; To first vacuum booster thereby vacuum is provided temporarily through first pipeline, makes first vacuum booster can continue to provide power-assisted.
Other feature and advantage of the utility model will partly specify in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is the further understanding that is used to provide the utility model, and constitutes the part of specification sheets, is used to explain the utility model with the following specific embodiment, but does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the existing vacuum servo of explanation system;
Fig. 2 is the scheme drawing of air flow direction of the vacuum servo system of instruction diagram 1;
Fig. 3 is a kind of structural representation of embodiment of the vacuum servo system of explanation the utility model;
Fig. 4 is the scheme drawing of air flow direction of the vacuum servo system of instruction diagram 3;
The scheme drawing of air flow direction when Fig. 5 is explanation second pipeline leakage.
Description of reference numerals
1: vacuum booster 2: clutch vacuum booster 3: vacuum pump
4: vacuum reservoir 4a: the first chamber 4b: second chamber
8: the four pipelines of 5: the first pipeline 7: the three pipelines of 6: the second pipelines
9: check valve 10: exhaust brake valve P: connecting line
The specific embodiment
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the utility model.Should be understood that the specific embodiment described herein only is used for explanation and explains the utility model, is not limited to the utility model.
In the utility model, not do under the situation of opposite explanation, the noun of locality of use typically refers to reference to upper and lower, left and right shown in the drawings like " upper and lower, left and right "; " inside and outside " is meant inside and outside with respect to the profile of each parts itself.
An aspect according to the utility model; A kind of vacuum servo system is provided; This vacuum servo system comprises first vacuum booster, second vacuum booster, vacuum pump 3 and vacuum reservoir 4, and wherein, said vacuum servo system comprises first pipeline 5, second pipeline 6 and the 3rd pipeline 7; Said vacuum reservoir 4 comprises the first chamber 4a and the second chamber 4b of mutual isolation; Said first vacuum booster is communicated with the said first chamber 4a through said first pipeline 5, and said second vacuum booster is communicated with the said second chamber 4b through said second pipeline 6, and said second pipeline 6 is communicated with said vacuum pump 3; Said first pipeline 5 is communicated with said second pipeline 6 through said the 3rd pipeline 7, is provided with the check valve 9 that allows 3 couples of said first chamber 4a of said vacuum pump and the suction of said first vacuum booster in said the 3rd pipeline 7.
Under vacuum pump 3 normal operation and each pipeline and the leak free situation of parts, 3 pairs of each parts of vacuum pump provide swabbing action.Wherein, vacuum pump 3 can provide vacuum to first vacuum booster and second vacuum booster, can also make the first chamber 4a of vacuum reservoir 4 and the second chamber 4b keep vacuum respectively.When vacuum pump 3 unusual; Perhaps when second pipeline 6, the second chamber 4b or second vacuum booster take place to leak; Because being provided with the pipe section at check valve 9, the second vacuum boosters, second pipeline 6, vacuum pump 3 and second chamber 4b place can be gas-insulated with the pipe section at first vacuum booster, first pipeline 5 and first chamber 4a place.Therefore, the first chamber 4a still keeps vacuum, can temporarily keep the operation of first vacuum booster through this part vacuum.In other words, the operation that does not temporarily influence first vacuum booster takes place to leak in unusual or second pipeline 6, the second chamber 4b or second vacuum booster of vacuum pump 3.
Vacuum booster can be used for to braking and clutch power-assisted being provided usually.In vehicle, braking is the most key function, and therefore decision occupant's safety, need guarantee the effective of brake system all the time.Therefore, preferably, said first vacuum booster is a vacuum booster 1, and said second vacuum booster is a clutch vacuum booster 2, to guarantee the normal running of vacuum booster 1.As shown in Figure 5, when unusual or second pipeline 6, the second chamber 4b or clutch vacuum booster 2 took place to leak when vacuum pump 3, vacuum booster 1 can temporarily be kept work through the vacuum that the first chamber 4a provides.Certainly, first vacuum booster also can be other important vacuum boosters, and the utility model does not limit this.
The vacuum of the vacuum servo system that in addition, some parts of auxiliary braking system also can be through the utility model is kept operation.Preferably, as shown in Figure 4, said vacuum servo system comprises exhaust brake valve 10 and the 4th pipeline 8, and said exhaust brake valve 10 is communicated with said second pipeline 6 through said the 4th pipeline 8.Through this layout, under vacuum pump 3 normal operation and each pipeline and the leak free situation of parts, vacuum pump 3 can provide suction to exhaust brake valve 10, to realize auxiliary braking.In addition, because vacuum booster 1 is main braking accessory, need at first guarantee the normal operation of vacuum booster 1.And when vacuum pump 3 when unusual or second pipeline 6, the second chamber 4b or clutch vacuum booster 2 take place to leak, the vacuum in the first chamber 4a can only temporarily be kept operation.Through this layout, make the vacuum of winning in the chamber 4a only be used to keep the normal operation of vacuum booster 1, more effective to guarantee braking.
According to the utility model on the other hand, a kind of vehicle is provided, wherein, this vehicle comprises the vacuum servo system of the utility model.
More than combine accompanying drawing to describe the preferred implementation of the utility model in detail; But; The utility model is not limited to the detail in the above-mentioned embodiment; In the technical conceive scope of the utility model, can carry out multiple simple variant to the technical scheme of the utility model, these simple variant all belong to the protection domain of the utility model.
Need to prove that in addition each the concrete technical characterictic described in the above-mentioned specific embodiment under reconcilable situation, can make up through any suitable manner.For fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between the various embodiment of the utility model, as long as its thought without prejudice to the utility model, it should be regarded as content disclosed in the utility model equally.
Claims (4)
1. vacuum servo system; This vacuum servo system comprises first vacuum booster, second vacuum booster, vacuum pump (3) and vacuum reservoir (4); It is characterized in that; Said vacuum servo system comprises first pipeline (5), second pipeline (6) and the 3rd pipeline (7); Said vacuum reservoir (4) comprises first chamber (4a) and second chamber (4b) of mutual isolation; Said first vacuum booster is communicated with said first chamber (4a) through said first pipeline (5), and said second vacuum booster is communicated with said second chamber (4b) through said second pipeline (6), and said second pipeline (6) is communicated with said vacuum pump (3); Said first pipeline (5) is communicated with said second pipeline (6) through said the 3rd pipeline (7), is provided with in said the 3rd pipeline (7) to allow the check valve (9) of said vacuum pump (3) to said first chamber (4a) and the suction of said first vacuum booster.
2. vacuum servo according to claim 1 system is characterized in that said first vacuum booster is vacuum booster (1), and said second vacuum booster is clutch vacuum booster (2).
3. vacuum servo according to claim 1 and 2 system is characterized in that, said vacuum servo system comprises exhaust brake valve (10) and the 4th pipeline (8), and said exhaust brake valve (10) is communicated with said second pipeline (6) through said the 4th pipeline (8).
4. a vehicle is characterized in that, this vehicle comprises according to any described vacuum servo system among the claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120400140XU CN202294768U (en) | 2011-10-19 | 2011-10-19 | Vacuum boost system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120400140XU CN202294768U (en) | 2011-10-19 | 2011-10-19 | Vacuum boost system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202294768U true CN202294768U (en) | 2012-07-04 |
Family
ID=46363719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120400140XU Expired - Fee Related CN202294768U (en) | 2011-10-19 | 2011-10-19 | Vacuum boost system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202294768U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015714A (en) * | 2014-05-09 | 2014-09-03 | 安徽霍山县东湖汽车贸易有限公司 | Clearance electromobile vacuum generating device |
| CN109532807A (en) * | 2018-12-29 | 2019-03-29 | 北京汽车股份有限公司 | Vacuum boost system, the control method of vacuum boost system and vehicle |
| CN114684090B (en) * | 2020-12-30 | 2023-07-18 | 北汽福田汽车股份有限公司 | Vacuum servo power assisting system, vehicle control method, storage medium and vehicle |
-
2011
- 2011-10-19 CN CN201120400140XU patent/CN202294768U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104015714A (en) * | 2014-05-09 | 2014-09-03 | 安徽霍山县东湖汽车贸易有限公司 | Clearance electromobile vacuum generating device |
| CN109532807A (en) * | 2018-12-29 | 2019-03-29 | 北京汽车股份有限公司 | Vacuum boost system, the control method of vacuum boost system and vehicle |
| CN109532807B (en) * | 2018-12-29 | 2020-06-26 | 北京汽车股份有限公司 | Vacuum boosting system, control method of vacuum boosting system and vehicle |
| CN114684090B (en) * | 2020-12-30 | 2023-07-18 | 北汽福田汽车股份有限公司 | Vacuum servo power assisting system, vehicle control method, storage medium and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20171019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |