CN103253100A - Booster cavity and high-pressure cavity integrated type closed-loop gas path air suspension system - Google Patents
Booster cavity and high-pressure cavity integrated type closed-loop gas path air suspension system Download PDFInfo
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- CN103253100A CN103253100A CN2013101945070A CN201310194507A CN103253100A CN 103253100 A CN103253100 A CN 103253100A CN 2013101945070 A CN2013101945070 A CN 2013101945070A CN 201310194507 A CN201310194507 A CN 201310194507A CN 103253100 A CN103253100 A CN 103253100A
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Abstract
The invention discloses a booster cavity and a high-pressure cavity integrated type closed-loop gas path air suspension system, and relates to the technical field of closed-loop gas path air suspension systems. Two pistons and a piston rod are mounted in a cavity body, one piston is connected with one end of the piston rod, and the other end of the piston rod penetrates through the upper end face of a low-pressure cavity and is connected with an external driving device. A check valve c and a check valve d are mounted on the two pistons respectively. An air spring receives gas from the high-pressure cavity according to needs. When deflation is needed, gas is released to an upper working cavity body and a lower working cavity body of a self-pressurization mechanism through a check valve a and a check valve b. The self-pressurization mechanism fills the gas of the upper working cavity body and the lower working cavity body after accumulation and pressurization into the high-pressure cavity respectively through the check valve c and the check valve d in an extrinsic motivation vertical vibration stroke of a suspension, and a closed-loop gas path is formed. According to the booster cavity and the high-pressure cavity integrated type closed-loop gas path air suspension system, the gas exhausted by the air spring can be retrieved effectively and put into cyclic utilization, and the energy-saving purpose of the air suspension system is achieved.
Description
Technical field
The present invention relates to closed loop gas circuit airsuspension system technical field, especially relate to a kind of booster cavity and high pressure chest integrated-type closed loop gas circuit airsuspension system.
Background technology
Along with growth in the living standard, people not only require automobile to have good riding comfort, travelling comfort, because natural resources is deficient day by day, the energy saving of automobile are also had higher requirement simultaneously.For vehicle air suspension system, according to the cycle mode difference of air bellow compressed air, airsuspension system can be divided into open loop air-channel system and closed loop air-channel system.The open loop air-channel system refers to the air in the environment is pumped in the high pressure chest storage tank after compression, inflated to air bellow by the high pressure chest storage tank, when the required pressure of air bellow reduces, unnecessary high pressure gas directly are discharged in the atmosphere via blow off valve, this part high pressure gas of discharging are taken away the portion of energy of system, cause the loss of energy.For energy savings, increase a low-pressure cavity storage tank at original architecture basics, be used for the gas of the certain pressure that the stored air spring rows releases, when detecting high pressure chest storage tank air pressure deficiency, start air pump, gas in the low-pressure cavity storage tank is pumped in the high pressure chest storage tank, forms closed loop gas circuit airsuspension system.
Along with the worsening shortages of the energy, energy-conservation closed loop gas circuit air spring system will inevitably become the important topic that researcher is paid close attention to.At present have only the minority scholar to propose some solutions to the research of this respect: more typical scheme has: scholars' such as Japanese Shuuici Buma the patent No. is that the US Patent " ELECTRONIC CONTROLLED AIR SUSPENSION SYSTEM " of US4826141 has proposed a high and low pressure chamber closed loop gas circuit airsuspension system structure, and by electron steering realization charging-discharging function, the gas that air bellow is discharged is collected to reach purpose of energy saving with the another one storage tank.The high and low pressure chamber closed loop gas circuit airsuspension system that this scheme proposes need boost to collected gas in the low-pressure cavity in the high pressure chest by starting air pump.Scholars' such as German scholar Christof Behmenburg the patent No. is the theory that the US Patent " CLOSED LEVEL CONTROL SYSTEM FOR A VEHICLE " of US6685174B2 has proposed the shared cavity in high and low pressure chamber.Realize from storage tank that by starting air pump to the air bellow inflation, from two functions of air bellow to the storage tank venting, it is that the gas that air bellow is discharged is discharged into storage tank again, reaches purpose of energy saving.The high and low pressure chamber that this scheme proposes shares the closed loop gas circuit airsuspension system of a cavity, needs the frequent starting air pump to realize charging and discharging gas.Scheme above-mentioned all needs the frequent starting air pump, will inevitably consume certain electric energy, causes the waste of energy.And owing to increased this storage tank of low-pressure cavity, must increase the complexity of arrangement space on the car.
Summary of the invention
The objective of the invention is to solve the deficiency of above-mentioned background technology, design a kind of frequent starting air pump that do not need, the gas that air bellow is emitted in the vibration that can utilize suspension charges into high pressure chest through a cover from booster body, thereby forms the airsuspension system of closed loop gas circuit.
To achieve these goals, its technical scheme of the present invention is: closed loop gas circuit airsuspension system comprises air bellow, electromagnetic valve a, check valve, from booster body, air pump.During suspension work, air bellow is accepted to realize inflation from the gas from booster body mesohigh chamber as required; When needing venting, then by check valve to from the booster body venting, under the extrinsic motivation up-down vibration of booster body at suspension, will charge into high pressure chest after the gas buildup supercharging, form the closed loop gas circuit like this, reach the energy-conservation purpose of airsuspension system.
The present invention includes air bellow, electromagnetic valve a, check valve b, check valve a, check valve c, piston rod, work epicoele, upper sealing panel, air pump, two-position three way magnetic valve, lower piston, upper piston, work cavity of resorption, lower surface, check valve d, high pressure chest, cavity; Described cavity is cylindrical shape, and upper piston and lower piston are set in the cavity, and upper piston is positioned at the top of lower piston, and upper piston and lower piston are divided into work epicoele, high pressure chest and work cavity of resorption from top to bottom with cavity; The center of lower piston connects an end of piston rod, and the upper wall surface that the other end of piston rod passes the center of upper piston, cavity connects the connection of external excitation suspension; Described upper piston is provided with the check valve c that is led to high pressure chest by the work epicoele, and described lower piston is provided with the check valve d that is led to high pressure chest by the work cavity of resorption; The upper sealing panel of described cavity is provided with admission port a, the lower surface of cavity is provided with admission port b, the sidewall that is positioned at the high pressure chest part of described cavity is provided with air-filled pore e, and described air-filled pore e is connected with the outlet side of air pump and an end of air bellow respectively by two-position three way magnetic valve; The air bellow other end is by electromagnetic valve a the be connected in parallel inlet end of check valve a and the inlet end of check valve b, and check valve b outlet side is connected admission port b and admission port a respectively with check valve a outlet side.
Described air-filled pore e also can be connected with the outlet side of air pump and an end of air bellow respectively with electromagnetic valve c by electromagnetic valve b.The inlet end of air pump arranges electromagnetic valve d.
Described air bellow by electromagnetic valve a, check valve respectively with from two of booster body up and down the admission port of working cavity is connected, realize the function of exitting.Have a hole to be connected with air pump, air bellow respectively by two-position three way magnetic valve above the high pressure chest, high pressure chest is connected with air pump realizes air pump purpose to the high pressure chest make-up gas from atmosphere, and high pressure chest is connected the purpose that realizes inflation with air bellow.
Extrinsic motivation is the suspension up-down vibration, and the energy by the suspension up-down vibration passes to piston rod, and piston rod promotes two-piston and does and pump.A check valve all is housed above the two-piston.Certain constantly, because when two-piston moves from balance position to a certain direction, the pressure of one of them working cavity of working cavity can become big along with diminishing of volume about in the of two, when the pressure of working cavity greater than the pressure in the high pressure chest, at this moment open check valve, gas in the realization working cavity boosts to the purpose in the high pressure chest, and it then is the purpose of finishing venting that another working cavity does not have boosted.
The invention has the beneficial effects as follows:
1, double-piston will be divided into three working cavities of upper, middle and lower from booster body, and two working cavity equipressures have up and down wherein reduced that working cavity is to the shock damping action of piston up and down, and just the performance impact to suspension further reduces.
2, double-piston will be divided into three working cavities of upper, middle and lower from booster body, and the distance between the double-piston is definite value, and the seal cavity between the two-piston serves as the high pressure chest to the air bellow inflation.Comprise high pressure chest from booster body, rationally compact, it is little to take up room.
3, double-piston will be divided into three working cavities of upper, middle and lower from booster body, when pressure increased when wherein up and down any one working cavity was compressed in two working cavities, another one working cavity pressure must reduce, at this moment air bellow can reach the purpose of rapid venting, does not influence the performance of venting.
4, double-piston is being in dynamic balance state in booster body, and two working cavities alternately will gas separately be compressed to and go in the high pressure chest up and down, have improved compression efficiency.
5, mechanism of the present invention is converted into the high-pressure gas pressure energy with the suspension vibrational energy, and high-pressure gas pressure can be directly used in the air bellow inflation, has avoided increasing the degradation of energy of middle device like this.
6, simple in structure, mechanism realizes easily.By the double-piston up-and-down movement energy of suspension vibration is converted into the pressure energy of gas, has replaced orthodox method---the air pump supercharging, avoided the frequent starting air pump, saved electric energy.
7, the main parts size ratio in this device is easier to processing, and the cost of other boosting methods is also lower relatively, is conducive to promote the use of.
Description of drawings
Fig. 1 is from booster body closed loop gas circuit airsuspension system scheme drawing.
Fig. 2 is from another specific implementation scheme drawing of booster body closed loop gas circuit airsuspension system.
Among the figure, 1. air bellow; 2. electromagnetic valve a; 3. check valve b; 4. check valve a; 5. check valve c; 6. piston rod; 7. work epicoele; 8. upper sealing panel; 9. air pump; 10. two-position three way magnetic valve; 11. lower piston; 12. upper piston; 13. work cavity of resorption; 14. lower surface; 15. check valve d; 16. high pressure chest; 17. cavity; 18. electromagnetic valve b; 19. electromagnetic valve c; 20. electromagnetic valve d.
The specific embodiment
As shown in the figure be a columnar cavity 17 from the booster body inner structure.Upper piston 12, lower piston 11 and piston rod 6 are housed in the cavity 17, lower piston 11 is captiveed joint with piston rod 6 one ends, piston rod 6 other ends are connected with the extrinsic motivation suspension, on upper piston 12 and the piston rod 6 certain is a bit captiveed joint, distance between upper piston 12 and the lower piston 11 is constant, and high pressure chest 16 is served as in the space between the two-piston; And upper piston 12 with a check valve c5, check valve d15 respectively are housed above the lower piston 11; Upper piston 12 is divided into work epicoele 7, work cavity of resorption 13 and high pressure chest 16 with lower piston 11 with cavity 17; Have an end of hole e connection two-position three way magnetic valve 10 in the middle of the high pressure chest 16, the other end of two-position three way magnetic valve 10 connects air pump 9 and air bellow 1 respectively; Air pump 9 other ends are being communicated with atmosphere, the gas that leaks with replenishment system and keep in the high pressure chest 16 and contain certain pressure; The other end of air bellow 1 is by electromagnetic valve a2 the be connected in parallel end of check valve b3 and the end of check valve a4, and the other end of the other end of check valve b3 and check valve a4 is connected to the admission port b of work cavity of resorption 13 and the admission port a of work epicoele 7.
Concrete working process:
Initial period starts air pump 9, stores certain pressure for high pressure chest 16 by two-position three way magnetic valve 10, when reaching certain working pressure, turns off air pump 9.
Aeration phase gives two-position three way magnetic valve 10 energisings, and at this moment the gas in the high pressure chest flows out by two-position three way magnetic valve 10 from air-filled pore e and gives air bellow 1 inflation, realizes the function of inflation.
The venting stage, give electromagnetic valve a2 energising, air bellow 1 is by electromagnetic valve a2, and process check valve b3 and check valve a4 preferentially flow into a less cavity of pressure in work cavity of resorption 13 and the work epicoele 7, realize the function of venting.
Boost phase, when piston rod 6 bore external excitation, upper piston 12 and lower piston 11 were in the dynamical equilibrium position in the cavity 17; Because work epicoele 7 equates that with work cavity of resorption 13 pressure the epicoele 7 of then working is smaller with the shock damping action of lower piston 11 with work cavity of resorption 13 pairs of upper pistons 12, can ignore, and does not influence suspension property; Upper piston 12 and lower piston 11 bear external excitation when moving downward from dynamic balance position, because upper piston 12 is constant with the distance between the lower piston 11, the volume of the cavity of resorption 13 of working can diminish rapidly, and it is big that pressure will become moment; Then push check valve d15 when the pressure of work in the cavity of resorption 13 open during greater than the pressure in the high pressure chest 16, the gas in the work cavity of resorption 13 flows in high pressure chest 16, realizes the purpose of boosting; Because upper piston 12 moves downward, epicoele 7 volumes of working so become big and cause that pressure diminishes, and at this moment air bellow can be realized the purpose of venting rapidly.Upper piston 12 vibrates in the dynamical equilibrium position all the time with lower piston 11, and piston 11 is intact to lower compression, upper piston 12 and the rapid upward movement of lower piston 11 meetings, and its principle of work is no longer narrated at this with the same to the lower compression situation.
Claims (4)
1. a booster cavity and high pressure chest integrated-type closed loop gas circuit airsuspension system, it is characterized in that, comprise air bellow (1), electromagnetic valve a(2), check valve b(3), check valve a(4), check valve c(5), piston rod (6), work epicoele (7), upper sealing panel (8), air pump (9), lower piston (11), upper piston (12), work cavity of resorption (13), lower surface (14), check valve d(15), high pressure chest (16), cavity (17); Described cavity (17) is cylindrical shape, upper piston (12) and lower piston (11) are set in the cavity (17), upper piston (12) is positioned at the top of lower piston (11), and upper piston (12) and lower piston (11) are divided into work epicoele (7), high pressure chest (16) and work cavity of resorption (13) from top to bottom with cavity (17); The center of lower piston (11) connects an end of piston rod (6), and the upper wall surface that the other end of piston rod (6) passes the center of upper piston (12), cavity (17) connects the connection of external excitation suspension; Described upper piston (12) is provided with the check valve c(5 that is led to high pressure chest (16) by work epicoele (7)), described lower piston (11) is provided with the check valve d(15 that is led to high pressure chest (16) by work cavity of resorption (13)); The upper sealing panel (8) of described cavity (17) is provided with admission port a, the lower surface (14) of cavity (17) is provided with admission port b, the sidewall that is positioned at high pressure chest (16) part of described cavity (17) is provided with air-filled pore e, and described air-filled pore e is connected with the outlet side of air pump (9) and an end of air bellow (1) respectively by electromagnetic valve; Air bellow (1) other end is by electromagnetic valve a(2) check valve a(4 is connected in parallel) inlet end and check valve b(3) inlet end, check valve b(3) outlet side and check valve a(4) outlet side is connected admission port b and admission port a respectively.
2. a kind of booster cavity according to claim 1 and high pressure chest integrated-type closed loop gas circuit airsuspension system, it is characterized in that described air-filled pore e is connected with the outlet side of air pump (9) and an end of air bellow (1) respectively by two-position three way magnetic valve (10).
3. a kind of booster cavity according to claim 1 and high pressure chest integrated-type closed loop gas circuit airsuspension system, it is characterized in that described air-filled pore e is by electromagnetic valve b(18) with electromagnetic valve c(19) be connected with the outlet side of air pump (9) and an end of air bellow (1) respectively.
4. a kind of booster cavity according to claim 1 and high pressure chest integrated-type closed loop gas circuit airsuspension system is characterized in that the inlet end of described air pump (9) arranges electromagnetic valve d(20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310194507.0A CN103253100B (en) | 2013-05-23 | 2013-05-23 | Booster cavity and high-pressure cavity integrated type closed-loop gas path air suspension system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310194507.0A CN103253100B (en) | 2013-05-23 | 2013-05-23 | Booster cavity and high-pressure cavity integrated type closed-loop gas path air suspension system |
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| CN103253100A true CN103253100A (en) | 2013-08-21 |
| CN103253100B CN103253100B (en) | 2015-06-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107444054A (en) * | 2017-06-30 | 2017-12-08 | 江苏大学 | Auxiliary aerating device applied to air suspension |
| CN109606048A (en) * | 2018-11-21 | 2019-04-12 | 江苏科技大学 | A kind of air pressure adaptive change air spring and its air pressure control method |
| CN110195759A (en) * | 2019-07-11 | 2019-09-03 | 海南大学 | A kind of air spring automatic inflatable device of air |
| CN112576672A (en) * | 2020-12-30 | 2021-03-30 | 邵阳兴达精密机械制造有限公司 | Low-resilience return stroke controllable nitrogen spring and operation method |
| CN113335381A (en) * | 2021-06-18 | 2021-09-03 | 东风汽车集团股份有限公司 | Full-dynamic control device and method for toe-in camber of multi-link suspension |
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| US4826141A (en) * | 1987-04-20 | 1989-05-02 | Toyota Jidosha Kabushiki Kaisha | Electronic controlled air suspension system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107444054A (en) * | 2017-06-30 | 2017-12-08 | 江苏大学 | Auxiliary aerating device applied to air suspension |
| CN109606048A (en) * | 2018-11-21 | 2019-04-12 | 江苏科技大学 | A kind of air pressure adaptive change air spring and its air pressure control method |
| CN109606048B (en) * | 2018-11-21 | 2021-07-09 | 江苏科技大学 | Air pressure self-adaptive change air spring and air pressure control method thereof |
| CN110195759A (en) * | 2019-07-11 | 2019-09-03 | 海南大学 | A kind of air spring automatic inflatable device of air |
| CN112576672A (en) * | 2020-12-30 | 2021-03-30 | 邵阳兴达精密机械制造有限公司 | Low-resilience return stroke controllable nitrogen spring and operation method |
| CN112576672B (en) * | 2020-12-30 | 2024-04-30 | 邵阳兴达精密机械制造有限公司 | Low-resilience-quantity return-stroke controllable nitrogen spring and operation method |
| CN113335381A (en) * | 2021-06-18 | 2021-09-03 | 东风汽车集团股份有限公司 | Full-dynamic control device and method for toe-in camber of multi-link suspension |
| CN113335381B (en) * | 2021-06-18 | 2022-04-01 | 东风汽车集团股份有限公司 | Full-dynamic control device and method for toe-in camber of multi-link suspension |
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| CN103253100B (en) | 2015-06-10 |
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