CN202624191U - Automobile vacuum energy storing device - Google Patents
Automobile vacuum energy storing device Download PDFInfo
- Publication number
- CN202624191U CN202624191U CN 201220222937 CN201220222937U CN202624191U CN 202624191 U CN202624191 U CN 202624191U CN 201220222937 CN201220222937 CN 201220222937 CN 201220222937 U CN201220222937 U CN 201220222937U CN 202624191 U CN202624191 U CN 202624191U
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- Prior art keywords
- cylindrical shell
- valve seat
- cover
- spool
- air passage
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- Withdrawn - After Issue
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Abstract
The utility model discloses an automobile vacuum energy storing device. The lower port of a barrel (1) is sealed through an outer cover (2), an inner cover (3) and a middle cover (4) are installed inside the barrel (1), a pressure spring (5) is installed above the inner cover (3), a plastic rubber sleeve (6) is installed on the lower portion inside the barrel (1), the bottom of the inner layer of the plastic rubber sleeve (6) is fixed with the inner cover (3) and the middle cover (4), and the bottom of the outer layer of the plastic rubber sleeve (6) is fixed with the outer cover (2). A short joint (7) and a long joint (8) are installed on the upper portion of the barrel (1), an air passage (9) is installed inside the long joint (8), the outlet of the air passage (9) is communicated with the middle of a central hole of the long joint (8), and the inlet of the air passage (9) is communicated with one portion of the central hole of the long joint (8), wherein the portion is close to the barrel (1).The automobile vacuum energy storing device can effectively increase vacuum servo times of a brake pedal to guarantee safety and comfort of braking, and is suitable for being applied to various automobiles like a sedan car and a minibus.
Description
Technical field
The utility model belongs to automobile technical field, specifically, and the particularly vacuum accumulator on the automobile.
Background technology
At present, on a lot of automobiles the vacuum servo system is installed all, the vacuum source of this vacuum servo system is from driving engine.That is: the induction maniflod of driving engine is connected with vacuum booster through the vacuum servo flexible pipe, and vacuum booster is connected with drg.When the driving engine normal operation, the driving engine aspirated air can produce degree of vacuum on the tube wall of induction maniflod, make the gas flow induction maniflod in the vacuum booster; When the engine off car load was still advanced, vacuum booster applied power-assisted through air pressure to drg, and it is lighter to make pin step on brake pedal, to improve the safety and the traveling comfort of braking.
For taking up/automobile of stop system, engine off when low speed is dragged by motor, and relies on the monitoring to power-assisted degree of vacuum to guarantee deceleration and stopping performance.But after flame-out, brake pedal is stepped at most three times, the just basic forfeiture of vacuum servo, and just must restart driving engine this moment, thereby increased the number of starts of driving engine, can influence the life-span of driving engine, and increase oil consumption and discharging.
For not having/automobile of stop system, though forbid coasting with engine off, for fuel-economizing, often the driving behavior of neutral coasting with engine off is not within minority.Because the vacuum servo system steps on three times at most to the power-assisted of brake pedal and will lose, the sensitieness of coasting with engine off braking is relatively poor like this, can influence the safety of braking.
The utility model content
The utility model technical matters to be solved is to provide a kind of vacuum automobile closed-center system that can effectively improve the vacuum servo number of times.
The technical scheme of the utility model is following: a kind of vacuum automobile closed-center system; Comprise cylindrical shell (1), enclosing cover (2), inner cap (3), middle cover (4), stage clip (5), plastics gum cover (6), short circuit head (7) and lengthening joint (8); Cylindrical shell (1) upper end closed lower end is uncovered; The lower port of this cylindrical shell (1) is by enclosing cover (2) sealing, and the position near the bottom in said cylindrical shell (1) is provided with inner cap (3) and middle cover (4), and inner cap (3) is positioned at the top of middle cover (4); Both are fixed together; Be provided with stage clip (5) in the top of said inner cap (3), the inner roof wall butt of the upper end of stage clip (5) and cylindrical shell (1), the lower end of stage clip (5) and inner cap (3) connect; Bottom in said cylindrical shell (1) is provided with plastics gum cover (6); This plastics gum cover (6) is a double-decker; The upper end and the outer field upper end of plastics gum cover (6) internal layer are connected as a single entity; Have the gap between the internal layer of plastics gum cover (6) and the skin, the bottom of plastics gum cover (6) internal layer and inner cap (3) and middle cover (4) fix, and outer field bottom of plastics gum cover (6) and enclosing cover (2) are fixing; Short circuit head (7) and lengthening joint (8) are housed on the top of said cylindrical shell (1); The centre hole of short circuit head (7) is communicated with the inner chamber of cylindrical shell (1); The centre hole of lengthening joint (8) also is communicated with the inner chamber of cylindrical shell (1); And be provided with air passage (9) in the lengthening joint (8); The outlet of this air passage (9) is communicated with the middle part of lengthening joint (8) centre hole, and the import of air passage (9) communicates with the position of lengthening joint (8) centre hole near cylindrical shell (1), and the import of air passage (9) can be closed through the unidirectional cone valve of installing in lengthening joint (8) centre hole.
The utility model is connected between engine intake manifold and the vacuum booster; Short circuit head in the utility model is connected with vacuum booster through the first vacuum servo flexible pipe, and the lengthening joint in the utility model is connected with engine intake manifold through the second vacuum servo flexible pipe.Stage clip is in the normal pressure state that contracts, and savings have potential energy.When the driving engine normal operation; The driving engine aspirated air; On the tube wall of induction maniflod, produce degree of vacuum, the air pressure in the engine intake manifold is less than the air pressure in the cylindrical shell at this moment, and unidirectional cone valve is opened the import of lengthening joint air passage under the pressure differential effect; Make the gas in the vacuum booster flow into cylindrical shell, again through lengthening joint flow direction engine induction maniflod through short circuit head.When the engine off car load was still advanced, the pressure in the induction maniflod increased to barometric pressure and equates that unidirectional cone valve cuts out the import of lengthening joint air passage.When the needs glancing impact, pin is stepped on brake pedal one time, and vacuum booster just applies power-assisted through air pressure one time to drg; In this process; Get into air in the vacuum booster, the part air gets in the cylindrical shell through short circuit head, makes the stage clip elongation and discharges a part of potential energy; And the volume in the cylindrical shell increases, and still keeps higher degree of vacuum in the vacuum booster.Along with the increase that pin is stepped on the brake pedal number of times, the elongation of stage clip is increasing, and the volume in the cylindrical shell is also increasing, the degree of vacuum complete obiteration in vacuum booster.
Through practical proof, the number of times that the utility model can be stepped on brake pedal with the engine off rear foot is increased to 5-7 time by former maximum three times.For take up/automobile of stop system for, effectively reduced the number of times of restarting driving engine, prolonged the life-span of driving engine, and reduced oil consumption and discharging; For do not have/automobile of stop system for, unexpected or have a mind to flame-out after, can guarantee the sensitieness braked, improve the safety of braking relatively.
The edge of said enclosing cover (2) crimping that makes progress, the last crimping at enclosing cover (2) edge overlaps fixing with the outer crimping of cylindrical shell (1) lower port mutually.Above structure processing and fabricating is easy, and it is firm to guarantee to be connected between enclosing cover and the cylindrical shell, can strengthen the leak tightness of junction between enclosing cover and the cylindrical shell again.
The edge of said middle cover (4) crimping that makes progress, the last crimping at middle cover (4) edge overlaps fixing with the following flange at inner cap (3) edge mutually.Above structure can guarantee to be connected firmly between middle cover and the inner cap, reliably, both synchronisms of motion are good.
The top of said inner cap (3) is formed with first annular boss through punching press, and the lower end of stage clip (5) is set on this first annular boss; The downward punching press of end face of said cylindrical shell (1) is formed with second annular boss, and the upper end of stage clip (5) is set on second annular boss.First annular boss and second annular boss play location and guiding to stage clip, only do fore and aft motion at above-below direction to guarantee stage clip.
All sidewalls of the skin of said plastics gum cover (6) and cylindrical shell (1) bottom are close to; The outer field bottom of plastics gum cover (6) is clamped between the outer crimping of last crimping and cylindrical shell (1) lower port at enclosing cover (2) edge, and the bottom of plastics gum cover (6) internal layer is clamped between the following flange at last crimping and inner cap (3) edge at middle cover (4) edge.It is firm that above structure can make the plastics gum cover install on the one hand, and strengthened the sealing shape between enclosing cover and the cylindrical shell lower port; On the other hand, when the cylindrical shell internal volume changes, do not have friction between plastics gum cover and the cylindrical shell and between middle cover and the enclosing cover, reliability is secure.
In order further to improve screen resilience, the gap between said plastics gum cover (6) internal layer and the skin increases from top to bottom gradually.
Said unidirectional cone valve is made up of first valve seat (10), second valve seat (11), spool (12) and valve core spring (13); First valve seat (10) and second valve seat (11) are hollow structure; First valve seat (10) is fixed between the inner end surface of import and lengthening joint (8) of air passage (9); Second valve seat (11) is fixed between the import and outlet of air passage (9); Spool (12) and valve core spring (13) are set between said first valve seat (10) and second valve seat (11); Spool (12) and lengthening joint (8) bearing fit, end of this spool (12) and first valve seat (10) butt, the other end of spool (12) is through valve core spring (13) and second valve seat (11) butt.Above structure unidirectional cone valve under the pressure differential effect can be worked automatically, to open or close the import of air passage as required, and not only sensitieness and good reliability, and can this inlet seal is tight when closing the air passage import, to avoid gas leakage.
Said spool (12) connects towards an end and first valve seat (10) of first valve seat (10); And this end of spool (12) has central blind hole; Spool (12) is formed with small boss towards an end of second valve seat (11), and valve core spring (13) is sleeved on this small boss.Above structure can alleviate the weight of spool, makes valve core movement more flexibly, reliably; Valve core spring can be guaranteed the unobstructed property of valve core movement by small boss location and guiding, avoids spool generation jam.
Beneficial effect: the utility model can effectively improve the vacuum servo number of times to brake pedal; With safety and the traveling comfort of guaranteeing to brake; Have reasonable in design, simple in structure, implement easily, characteristics such as sensitieness and good reliability, be suitable on polytype automobiles such as small passenger car, utility van, using.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the birds-eye view of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the block diagram of the utility model.
Fig. 5 is the use principle figure of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further:
Like Fig. 1, Fig. 2 and shown in Figure 4, cylindrical shell 1 is the uncovered cylindrical structure in upper end closed lower end, and the lower port of this cylindrical shell 1 is by enclosing cover 2 sealings.The edge of enclosing cover 2 crimping that makes progress, the last crimping at enclosing cover 2 edges overlaps fixing with the outer crimping of cylindrical shell 1 lower port mutually.In said cylindrical shell 1, be provided with inner cap 3 and middle cover 4 near the position of bottom, inner cap 3 is positioned at the top of middle cover 4, the edge of middle cover 4 crimping that makes progress, and the last crimping at middle cover 4 edges overlaps fixing with the following flange at inner cap 3 edges mutually.Top at inner cap 3 is formed with first annular boss through punching press; The top of inner cap 3 is provided with stage clip 5, and stage clip 5 is in the normal pressure state that contracts, and this stage clip 5 is positioned at cylindrical shell 1; The lower end of stage clip 5 is set on first annular boss, and the lower end of stage clip 5 and inner cap 3 connect.Be formed with second annular boss in the downward punching press of the end face of cylindrical shell 1, the upper end of stage clip 5 is set on second annular boss, and the inner roof wall butt of the upper end of stage clip 5 and cylindrical shell 1.
As shown in Figure 1; Bottom in cylindrical shell 1 is provided with plastics gum cover 6, and this plastics gum cover 6 is a double-decker, has skin and internal layer; All sidewalls of the skin of plastics gum cover 6 and cylindrical shell 1 bottom are close to; Plastics gum cover 6 outer field bottoms are clamped between the outer crimping of last crimping and cylindrical shell 1 lower port at enclosing cover 2 edges, and the upper end of plastics gum cover 6 outer field upper ends and internal layer is connected as a single entity, and the bottom of plastics gum cover 6 internal layers is clamped between the following flange at last crimping and inner cap 3 edges at middle cover 4 edges.Have the gap between the internal layer of said plastics gum cover 6 and the skin, and the gap between plastics gum cover 6 internal layers and the skin increases gradually from top to bottom.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, be provided with short circuit head 7 and lengthening joint 8 on the top of cylindrical shell 1, short circuit head 7 is positioned on the sustained height position of cylindrical shell 1 with lengthening joint 8.The inner setting-in of short circuit head 7 is gone in the mounting hole on cylindrical shell 1 wall, and the centre hole of short circuit head 7 is communicated with the inner chamber of cylindrical shell 1, and between short circuit head 7 and the cylindrical shell 1 seal ring is housed, to strengthen the leak tightness of junction.The inner setting-in of lengthening joint 8 is gone on cylindrical shell 1 wall in the cooresponding mounting hole, and the centre hole of lengthening joint 8 also is communicated with the inner chamber of cylindrical shell 1.In lengthening joint 8, be provided with air passage 9, this air passage 9 is positioned at the below of lengthening joint 8 centre holes, and the outlet of air passage 9 is communicated with the middle part of lengthening joint 8 centre holes, and the import of air passage 9 communicates with the position of lengthening joint 8 centre holes near cylindrical shell 1.
As shown in Figure 3; The unidirectional cone valve that can cut out air passage 9 imports is housed in the centre hole of lengthening joint 8; This unidirectional cone valve is made up of first valve seat 10, second valve seat 11, spool 12 and valve core spring 13; First valve seat 10 and second valve seat 11 are hollow structure; First valve seat 10 is fixed between the inner end surface of import and lengthening joint 8 of air passage 9, and second valve seat 11 is fixed between the import and outlet of air passage 9, and spool 12 and valve core spring 13 are set between said first valve seat 10 and second valve seat 11.Spool 12 connects towards an end and first valve seat 10 of first valve seat 10, and this end of spool 12 has central blind hole, and spool 12 is formed with small boss towards an end of second valve seat 11, and valve core spring 13 is sleeved on this small boss.One end of valve core spring 13 and spool 12 butts, the other end of valve core spring 13 and second valve seat, 11 butts.
Like Fig. 5 and index map 2, Fig. 3, shown in Figure 4, short circuit head 7 is connected with vacuum booster 15 through the first vacuum servo flexible pipe 14, and lengthening joint 8 is passed through the second vacuum servo flexible pipe 16 and is connected with engine intake manifold 17.When the driving engine normal operation, the driving engine aspirated air produces degree of vacuum on the tube wall of engine intake manifold 17; Air pressure in the engine intake manifold 17 is less than the air pressure in the cylindrical shell 1 at this moment, and under the pressure differential effect, spool 12 is to the direction motion of second valve seat 11; Valve core spring 13 is compressed; The import of lengthening joint air passage 9 is opened, and makes the gas in the vacuum booster 15 flow into cylindrical shell 1 through short circuit head 7, again through lengthening joint 8 flow direction engine induction maniflods 17.When the engine off car load was still advanced, the pressure in the engine intake manifold 17 increased to barometric pressure and equates, under the screen resilience effect of valve core spring 13, spool 12 is closed the import of lengthening joint air passage 9 to the direction motion of first valve seat 10.When automobile needs glancing impact, pin is stepped on brake pedal one time, and vacuum booster 15 just applies power-assisted through air pressure one time to drg; In this process; Get into air in the vacuum booster 15, the part air gets in the cylindrical shell 1 through short circuit head 7, makes stage clip 5 elongations and discharges a part of potential energy; And the volume in the cylindrical shell 1 increases, and still keeps higher degree of vacuum in the vacuum booster 15 like this.Along with the increase that pin is stepped on the brake pedal number of times, the elongation of stage clip 5 is increasing, and the volume in the cylindrical shell 1 is also increasing, the degree of vacuum complete obiteration in vacuum booster 15.The structure of vacuum booster and vacuum automobile power brake, principle are identical with prior art, do not do at this and give unnecessary details.
Although more than combine accompanying drawing that the preferred embodiment of the utility model is described; But the utility model is not limited to the above-mentioned specific embodiment; The above-mentioned specific embodiment only is schematic rather than determinate, and those of ordinary skill in the art is under the enlightenment of the utility model, under the prerequisite of the utility model aim and claim; Can make multiple similar expression; As change the fixed form of cylindrical shell and enclosing cover, and perhaps change the fixed form of inner cap and middle cover, perhaps change the material and the structure of plastics gum cover; Perhaps substitute unidirectional cone valve or the like with other similar check valve, such conversion all falls within the protection domain of the utility model.
Claims (8)
1. vacuum automobile closed-center system; It is characterized in that: cylindrical shell (1) upper end closed lower end is uncovered; The lower port of this cylindrical shell (1) is by enclosing cover (2) sealing, and the position near the bottom in said cylindrical shell (1) is provided with inner cap (3) and middle cover (4), and inner cap (3) is positioned at the top of middle cover (4); Both are fixed together; Be provided with stage clip (5) in the top of said inner cap (3), the inner roof wall butt of the upper end of stage clip (5) and cylindrical shell (1), the lower end of stage clip (5) and inner cap (3) connect; Bottom in said cylindrical shell (1) is provided with plastics gum cover (6); This plastics gum cover (6) is a double-decker; The upper end and the outer field upper end of plastics gum cover (6) internal layer are connected as a single entity; Have the gap between the internal layer of plastics gum cover (6) and the skin, the bottom of plastics gum cover (6) internal layer and inner cap (3) and middle cover (4) fix, and outer field bottom of plastics gum cover (6) and enclosing cover (2) are fixing; Short circuit head (7) and lengthening joint (8) are housed on the top of said cylindrical shell (1); The centre hole of short circuit head (7) is communicated with the inner chamber of cylindrical shell (1); The centre hole of lengthening joint (8) also is communicated with the inner chamber of cylindrical shell (1); And be provided with air passage (9) in the lengthening joint (8); The outlet of this air passage (9) is communicated with the middle part of lengthening joint (8) centre hole, and the import of air passage (9) communicates with the position of lengthening joint (8) centre hole near cylindrical shell (1), and the import of air passage (9) can be closed through the unidirectional cone valve of installing in lengthening joint (8) centre hole.
2. vacuum automobile closed-center system according to claim 1 is characterized in that: the edge of said enclosing cover (2) crimping that makes progress, the last crimping at enclosing cover (2) edge overlaps fixing with the outer crimping of cylindrical shell (1) lower port mutually.
3. vacuum automobile closed-center system according to claim 2 is characterized in that: the edge of said middle cover (4) crimping that makes progress, the last crimping at middle cover (4) edge overlaps fixing with the following flange at inner cap (3) edge mutually.
4. vacuum automobile closed-center system according to claim 3 is characterized in that: the top of said inner cap (3) is formed with first annular boss through punching press, and the lower end of stage clip (5) is set on this first annular boss; The downward punching press of end face of said cylindrical shell (1) is formed with second annular boss, and the upper end of stage clip (5) is set on second annular boss.
5. vacuum automobile closed-center system according to claim 3; It is characterized in that: all sidewalls of the skin of said plastics gum cover (6) and cylindrical shell (1) bottom are close to; The outer field bottom of plastics gum cover (6) is clamped between the outer crimping of last crimping and cylindrical shell (1) lower port at enclosing cover (2) edge, and the bottom of plastics gum cover (6) internal layer is clamped between the following flange at last crimping and inner cap (3) edge at middle cover (4) edge.
6. according to claim 1 or 5 described vacuum automobile closed-center systems, it is characterized in that: the gap between said plastics gum cover (6) internal layer and the skin increases from top to bottom gradually.
7. vacuum automobile closed-center system according to claim 1; It is characterized in that: said unidirectional cone valve is made up of first valve seat (10), second valve seat (11), spool (12) and valve core spring (13); First valve seat (10) and second valve seat (11) are hollow structure; First valve seat (10) is fixed between the inner end surface of import and lengthening joint (8) of air passage (9); Second valve seat (11) is fixed between the import and outlet of air passage (9), spool (12) and valve core spring (13) is set, spool (12) and lengthening joint (8) bearing fit between said first valve seat (10) and second valve seat (11); One end of this spool (12) and first valve seat (10) butt, the other end of spool (12) is through valve core spring (13) and second valve seat (11) butt.
8. vacuum automobile closed-center system according to claim 7; It is characterized in that: said spool (12) connects towards an end and first valve seat (10) of first valve seat (10); And this end of spool (12) has central blind hole; Spool (12) is formed with small boss towards an end of second valve seat (11), and valve core spring (13) is sleeved on this small boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220222937 CN202624191U (en) | 2012-05-17 | 2012-05-17 | Automobile vacuum energy storing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220222937 CN202624191U (en) | 2012-05-17 | 2012-05-17 | Automobile vacuum energy storing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202624191U true CN202624191U (en) | 2012-12-26 |
Family
ID=47377418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220222937 Withdrawn - After Issue CN202624191U (en) | 2012-05-17 | 2012-05-17 | Automobile vacuum energy storing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202624191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658814A (en) * | 2012-05-17 | 2012-09-12 | 力帆实业(集团)股份有限公司 | Vacuum accumulator for passenger car |
-
2012
- 2012-05-17 CN CN 201220222937 patent/CN202624191U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658814A (en) * | 2012-05-17 | 2012-09-12 | 力帆实业(集团)股份有限公司 | Vacuum accumulator for passenger car |
| CN102658814B (en) * | 2012-05-17 | 2014-07-16 | 力帆实业(集团)股份有限公司 | Vacuum accumulator for passenger car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121226 Effective date of abandoning: 20140716 |
|
| RGAV | Abandon patent right to avoid regrant |