CN108757806A - The double gas chamber piston accumulators of hydro pneumatic suspension - Google Patents
The double gas chamber piston accumulators of hydro pneumatic suspension Download PDFInfo
- Publication number
- CN108757806A CN108757806A CN201810970334.XA CN201810970334A CN108757806A CN 108757806 A CN108757806 A CN 108757806A CN 201810970334 A CN201810970334 A CN 201810970334A CN 108757806 A CN108757806 A CN 108757806A
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- China
- Prior art keywords
- cylinder body
- pneumatic suspension
- gas chamber
- hydro pneumatic
- upper cylinder
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3214—Constructional features of pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The present invention proposes a kind of double gas chamber piston accumulators of hydro pneumatic suspension, belongs to hydro pneumatic suspension technical field.This hydro pneumatic suspension includes upper cylinder body and lower cylinder body with double gas chamber piston accumulators, the interior cross-sectional area of upper cylinder body and the interior cross-sectional area of lower cylinder body are unequal, the lower end of upper cylinder body is tightly connected with the upper end of lower cylinder body makes upper cylinder body and lower cylinder body be connected to, the upper floating piston of setting in upper cylinder body, the lower floating piston of setting in lower cylinder body, limited block is set in upper cylinder body or lower cylinder body between upper floating piston and lower floating piston, the centre position of limited block opens up oilhole up and down, between upper floating piston and lower floating piston oil nozzle is connected in upper cylinder body or lower cylinder body, upper cylinder body connects upper air injection opening through air flue, lower cylinder body connects lower air injection opening through air flue.Beneficial effects of the present invention：Effective work area of 2 air chambers is different, and damping thrust is different, it is ensured that the buffer shock-absorbing that hydro pneumatic suspension provides meets vehicle in unloaded, fully loaded requirement simultaneously.
Description
Technical field
The present invention relates to hydro pneumatic suspension technical fields, more particularly to a kind of double gas chamber piston type accumulation of energys of hydro pneumatic suspension
Device.
Background technology
Hydro pneumatic suspension can change rigidity, can carry out preferable buffer shock-absorbing to vehicle, be widely used to heavy type
Truck, engineering truck.Current hydro pneumatic suspension is generally made of oil cylinder and single gas chamber accumulator, and principle is stored by single gas chamber
Can the atmospheric pressure of device air cavity adjust rigidity.Current single gas chamber accumulator cannot be guaranteed the buffer shock-absorbing that oil cylinder provides while expire
Sufficient vehicle is in unloaded, fully loaded requirement.Specifically, the atmospheric pressure when adjustment list gas chamber accumulator air cavity meets vehicle deadhead operation
When, then the piston rod of oil cylinder is located at the upper end of oil cylinder under vehicle full load condition, and the cushion stroke very little of piston rod makes oil cylinder
Buffer shock-absorbing effect is poor；It is fully loaded with when driving when the atmospheric pressure of adjustment list gas chamber accumulator air cavity meets vehicle, then in vehicle sky
The piston rod of oil cylinder is located at the lower end of oil cylinder under load state, and the cushion stroke of piston rod also very little makes the buffer shock-absorbing of oil cylinder make
With poor；When the atmospheric pressure of adjustment accumulator air cavity is median, then the cushion stroke of piston rod is bigger than normal in oil cylinder, but makes vehicle
Chassis height change greatly, do not meet Car design requirement.
Invention content
The purpose of the present invention is to provide a kind of double gas chamber piston accumulators of hydro pneumatic suspension, solve current accumulator
It cannot be guaranteed that the buffer shock-absorbing that hydro pneumatic suspension provides meets vehicle unloaded, the fully loaded requirement the technical issues of simultaneously.
The present invention provides a kind of hydro pneumatic suspension double gas chamber piston accumulators, the double gas chamber piston type accumulation of energys of hydro pneumatic suspension
Device includes upper cylinder body and lower cylinder body, and the interior cross-sectional area of upper cylinder body and the interior cross-sectional area of lower cylinder body are unequal, under upper cylinder body
Holding to be tightly connected with the upper end of lower cylinder body makes upper cylinder body and lower cylinder body be connected to, and being provided in upper cylinder body can make along the axis of upper cylinder body
The upper floating piston of straight reciprocating motion is provided with the lower floating that can make straight reciprocating motion along the axis of lower cylinder body in lower cylinder body
Piston is provided with limited block, the interposition of limited block between upper floating piston and lower floating piston in upper cylinder body or lower cylinder body
The oilhole offered up and down is set, oil is connected in upper cylinder body or lower cylinder body between upper floating piston and lower floating piston
Mouth, upper cylinder body are connected with upper air injection opening through air flue, and lower cylinder body is connected with lower air injection opening through air flue.
Further, the interior cross-sectional area of upper cylinder body is less than the interior cross-sectional area of lower cylinder body, and the lower end outer wall of upper cylinder body is set
It is equipped with external screw thread, the upper end inner wall of lower cylinder body is provided with internal thread, the upper end of the lower thread connection lower cylinder body of upper cylinder body.
Further, the outer wall of the limited block is provided with external screw thread, and the lower end inner wall of upper cylinder body is provided with internal thread, limit
Position block is threadedly coupled the lower end of upper cylinder body.
Further, the lower end of limited block is aligned with the lower end of upper cylinder body.
Further, lower cylinder body connects oil nozzle.
Further, the upper air injection opening of upper end setting of upper cylinder body, the lower air injection opening of lower end setting of lower cylinder body.
Further, epithelium healing is set inside the upper end of upper cylinder body, one end of epithelium healing connects upper cylinder body, epithelium healing it is another
The upper air injection opening of one end connection；Lower cylinder body includes lower cylinder sleeve, and the lower end of lower cylinder sleeve is sealedly connected with bottom end cover, is arranged inside bottom end cover
One end of downtake, downtake connects lower cylinder body, the lower air injection opening of other end connection of downtake.
Further, the lower end inner wall of lower cylinder sleeve is provided with internal thread, and the outer wall of bottom end cover is provided with external screw thread, bottom end cover
It is threadedly coupled the lower end of lower cylinder sleeve.
Further, it is provided with sealing ring between the lower end inner wall and the outer wall of bottom end cover of lower cylinder sleeve.
Further, the oil nozzle is connected with pipeline road.
Compared with prior art, hydro pneumatic suspension of the invention with double gas chamber piston accumulators have the characteristics that with it is excellent
Point：
The double gas chamber piston accumulators of the hydro pneumatic suspension of the present invention, compact-sized, occupied space is smaller, convenient for being assemblied in
On vehicle；It is that double gas chambers design, and effective work area of 2 air chambers is different, and damping thrust is different, and hydro pneumatic suspension is in vehicle
Zero load or full load condition keep the change in location of piston rod in oil cylinder little, and piston rod is larger in in-oil cylinder cushion stroke,
It can ensure the buffer shock-absorbing that hydro pneumatic suspension provides while meet vehicle in unloaded, fully loaded requirement；It can be to the oil of existing vehicle
Gas suspension transformation, it is only necessary to double gas chamber piston accumulators of the present invention be replaced into single gas chamber accumulator on existing vehicle, changed
Cause it is relatively low, convenient for promoting the use of on a large scale.
After the specific implementation mode of the present invention is read in conjunction with the figure, the features and advantages of the invention will become clearer.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the double gas chamber piston accumulators of hydro pneumatic suspension and oil cylinder in original state；
Fig. 2 is the structural schematic diagram of the double gas chamber piston accumulators of hydro pneumatic suspension and oil cylinder in vehicle light condition；
Fig. 3 is the structural schematic diagram of the double gas chamber piston accumulators of hydro pneumatic suspension and oil cylinder in vehicle full load condition；
Wherein, 1, upper cylinder body, 11, upper floating piston, 12, upper air injection opening, 2, lower cylinder body, 21, lower floating piston, 22, under
Air injection opening, 23, lower cylinder sleeve, 24, bottom end cover, 3, limited block, 31, oilhole, 4, pipeline road, 5, oil cylinder, 51, grease chamber, 52, piston
Bar, 6, oil nozzle, 71, epithelium healing, 72, downtake, 8, sealing ring, 91, upper chamber, 92, lower chamber.
Specific implementation mode
As shown in Figure 1 to Figure 3, the present embodiment provides a kind of hydro pneumatic suspension double gas chamber piston accumulators, double gas chambers
Piston type accumulation of energy connects the grease chamber 51 of oil cylinder 5 through pipeline road 4, to collectively constitute the major part of hydro pneumatic suspension.
Hydro pneumatic suspension includes upper cylinder body 1 and lower cylinder body 2 with double gas chamber piston accumulators.The interior cross-sectional area of upper cylinder body 1
It is unequal with the interior cross-sectional area of lower cylinder body 2.In the present embodiment, the interior cross-sectional area of upper cylinder body 1 is less than the interior transversal of lower cylinder body 2
Area.The interior cross-sectional area of upper cylinder body 1 and the interior cross-sectional area of lower cylinder body 2 are unequal, can make 1 gas chamber of upper cylinder body, lower cylinder body 2
Effective work area of gas chamber is different, different with the damping thrust to upper floating piston 11, lower floating piston 21.
The lower end outer wall of upper cylinder body 1 is provided with external screw thread, and the upper end inner wall of lower cylinder body 2 is provided with internal thread, upper cylinder body 1
Lower thread connects the upper end of lower cylinder body 2, and the lower end of upper cylinder body 1 is tightly connected with the upper end of lower cylinder body 2, makes upper cylinder body 1 under
Cylinder body 2 is communicated as one.
Floating piston 11 is provided in upper cylinder body 1, upper floating piston 11 can be in upper cylinder body 1 along the axis of upper cylinder body 1
Make straight reciprocating motion, upper cylinder body 1 is interior to form upper chamber 91 in the top of upper floating piston 11.It is provided with and floats downward in lower cylinder body 2
Piston 21, lower floating piston 21 can make straight reciprocating motion in lower cylinder body 2 along the axis of lower cylinder body 2, and lower cylinder body 2 is interior under
The lower section of floating piston 21 forms lower chamber 92.Upper cylinder body is provided with circle between upper floating piston 11 and lower floating piston 21
Cylindricality limited block 3.The outer wall of limited block 3 is provided with external screw thread, and the lower end inner wall of upper cylinder body 1 is provided with internal thread, 3 spiral shell of limited block
Line connects the lower end of upper cylinder body 1.The lower end of limited block 3 is aligned with the lower end of upper cylinder body 1, makes floating piston 11 that can run to limit
The upper surface of position block 3, makes lower floating piston 21 that can run to the lower surface of limited block 3, to increase in limited structure space
The stroke of upper floating piston 11, lower floating piston 21.The centre position of limited block 3 offers oilhole 31 up and down, this reality
It applies in example, hydraulic oil enters the space of lower 21 top of floating piston in lower cylinder body 2 through oil nozzle 6, and can enter upper cylinder half through oilhole 31
The space of 11 lower section of upper floating piston in body 1.
Between upper floating piston 11 and lower floating piston 21 oil nozzle 6 is connected in lower cylinder body 2.Oil nozzle 6 is through pipeline road 4
Connect the grease chamber 51 of oil cylinder 5.
Epithelium healing 71 is arranged in the upper air injection opening 12 of upper end setting of upper cylinder body 1, the upper end inside of upper cylinder body 1, epithelium healing 71
One end connects upper cylinder body 1, and the other end of epithelium healing 71 connects upper air injection opening 12.
The lower air injection opening 22 of lower end setting of lower cylinder body 2, lower air injection opening 22 connect lower cylinder body 2 through downtake 72.Under specifically,
Cylinder body 2 includes lower cylinder sleeve 23 and bottom end cover 24, and the lower end inner wall of lower cylinder sleeve 23 is provided with internal thread, the outer wall setting of bottom end cover 24
Have an external screw thread, bottom end cover 24 is threadedly coupled the lower end of lower cylinder sleeve 23, the lower end inner wall of lower cylinder sleeve 23 and the outer wall of bottom end cover 24 it
Between be provided with sealing ring 8 so that lower cylinder sleeve 23 lower end be tightly connected bottom end cover 24.Downtake 72 is arranged in 24 inside of bottom end cover,
One end of downtake 72 connects lower cylinder body 2, air injection opening 22 under the other end connection of downtake 72.
As shown in Figure 1, hydro pneumatic suspension is in original state (oil-filled, inflated condition), the grease chamber 51 of oil cylinder 5 injects hydraulic pressure
The oil nozzle 6 of double gas chamber piston accumulators is connected the grease chamber 51 of oil cylinder 5 by oil through pipeline road 4.It is upward by upper air injection opening 12
Injection nitrogen and the upper air injection opening 12 of closing, inject nitrogen to lower cylinder body 2 by lower air injection opening 22 and close lower air injection opening in cylinder body 1
22.In the present embodiment, the nitrogen pressure injected in upper cylinder body 1, lower cylinder body 2 is equal, effective work of upper chamber 91, lower chamber 92
Area is different, and upper chamber 91 pushes away the damping of lower floating piston 21 less than lower chamber 92 the damping thrust of upper floating piston 11
Power.
As shown in Fig. 2, hydro pneumatic suspension is in vehicle light condition, the stress in reciprocating motion of piston rod 52 is smaller at this time,
The hydraulic oil of grease chamber 51 enters the space between upper floating piston 11 and lower floating piston 21 through oil nozzle 6.Upper chamber 91 is to floating
The damping thrust of piston 11 is smaller, and hydraulic oil pushes upper floating piston 11 to move, at this point, piston rod 52 is located in oil cylinder 5
Between position slightly on the lower side, cushion stroke of the piston rod 52 in oil cylinder 5 is larger, meets vehicle in unloaded buffer shock-absorbing requirement.
As shown in figure 3, hydro pneumatic suspension is in vehicle full load condition, the stress in reciprocating motion of piston rod 52 is larger at this time,
The hydraulic oil of grease chamber 51 enters the space between upper floating piston 11 and lower floating piston 21 through oil nozzle 6.Upper chamber 91 is to floating
The damping thrust of piston 11 is smaller, and lower chamber 91 is larger to the damping thrust of lower floating piston 21, and hydraulic oil first pushes floating
The movement of piston 11 then pushes lower floating piston 21 to move, at this point, piston rod 52 is located at the slightly elevated position in centre of oil cylinder 5,
Cushion stroke of the piston rod 52 in oil cylinder 5 is larger, meets vehicle in fully loaded buffer shock-absorbing requirement.
The double gas chamber piston accumulators of the hydro pneumatic suspension of the present embodiment, compact-sized, occupied space is smaller, convenient for assembly
In on vehicle.It is that double gas chambers (upper chamber 91, lower chamber 92) design, and effective work area of 2 air chambers is different, and damping pushes away
Power is different, and hydro pneumatic suspension, which is in vehicle zero load or full load condition, keeps the change in location of piston rod 52 in oil cylinder 5 little, piston rod 52
Cushion stroke in oil cylinder 5 is larger, it is ensured that the buffer shock-absorbing that hydro pneumatic suspension provides meets vehicle unloaded, full simultaneously
The requirement of load.The oleo-pneumatic suspension of existing vehicle can be transformed, it is only necessary to replace double gas chamber piston accumulators of embodiment existing
There is single gas chamber accumulator on vehicle, improvement cost is relatively low, convenient for promoting the use of on a large scale.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
The variations, modifications, additions or substitutions that the technical staff in domain is made in the essential scope of the present invention should also belong to the present invention's
Protection domain.
Claims (10)
1. a kind of double gas chamber piston accumulators of hydro pneumatic suspension, it is characterised in that：The double gas chamber piston type accumulation of energys of hydro pneumatic suspension
Device includes upper cylinder body and lower cylinder body, and the interior cross-sectional area of upper cylinder body and the interior cross-sectional area of lower cylinder body are unequal, under upper cylinder body
Holding to be tightly connected with the upper end of lower cylinder body makes upper cylinder body and lower cylinder body be connected to, and being provided in upper cylinder body can make along the axis of upper cylinder body
The upper floating piston of straight reciprocating motion is provided with the lower floating that can make straight reciprocating motion along the axis of lower cylinder body in lower cylinder body
Piston is provided with limited block, the interposition of limited block between upper floating piston and lower floating piston in upper cylinder body or lower cylinder body
The oilhole offered up and down is set, oil is connected in upper cylinder body or lower cylinder body between upper floating piston and lower floating piston
Mouth, upper cylinder body are connected with upper air injection opening through air flue, and lower cylinder body is connected with lower air injection opening through air flue.
2. the double gas chamber piston accumulators of hydro pneumatic suspension according to claim 1, it is characterised in that：The interior cross of upper cylinder body
Sectional area is less than the interior cross-sectional area of lower cylinder body, and the lower end outer wall of upper cylinder body is provided with external screw thread, and the upper end inner wall of lower cylinder body is set
It is equipped with internal thread, the upper end of the lower thread connection lower cylinder body of upper cylinder body.
3. the double gas chamber piston accumulators of hydro pneumatic suspension according to claim 2, it is characterised in that：The limited block
Outer wall is provided with external screw thread, and the lower end inner wall of upper cylinder body is provided with internal thread, and limited block is threadedly coupled the lower end of upper cylinder body.
4. the double gas chamber piston accumulators of hydro pneumatic suspension according to claim 3, it is characterised in that：The lower end of limited block
It is aligned with the lower end of upper cylinder body.
5. the double gas chamber piston accumulators of hydro pneumatic suspension according to claim 1, it is characterised in that：Lower cylinder body connection oil
Mouth.
6. the double gas chamber piston accumulators of hydro pneumatic suspension according to claim 1, it is characterised in that：The upper end of upper cylinder body
Air injection opening in setting, the lower air injection opening of lower end setting of lower cylinder body.
7. the double gas chamber piston accumulators of hydro pneumatic suspension according to claim 6, it is characterised in that：The upper end of upper cylinder body
One end of inside setting epithelium healing, epithelium healing connects upper cylinder body, the upper air injection opening of other end connection of epithelium healing；Under lower cylinder body includes
The lower end of cylinder sleeve, lower cylinder sleeve is sealedly connected with bottom end cover, and downtake, the lower cylinder of one end connection of downtake are arranged inside bottom end cover
Body, the lower air injection opening of other end connection of downtake.
8. the double gas chamber piston accumulators of hydro pneumatic suspension according to claim 7, it is characterised in that：The lower end of lower cylinder sleeve
Inner wall is provided with internal thread, and the outer wall of bottom end cover is provided with external screw thread, and bottom end cover is threadedly coupled the lower end of lower cylinder sleeve.
9. the double gas chamber piston accumulators of hydro pneumatic suspension according to claim 8, it is characterised in that：The lower end of lower cylinder sleeve
It is provided with sealing ring between inner wall and the outer wall of bottom end cover.
10. the double gas chamber piston accumulators of hydro pneumatic suspension according to claim 1, it is characterised in that：The oil nozzle connects
It is connected to pipeline road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810970334.XA CN108757806A (en) | 2018-08-24 | 2018-08-24 | The double gas chamber piston accumulators of hydro pneumatic suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810970334.XA CN108757806A (en) | 2018-08-24 | 2018-08-24 | The double gas chamber piston accumulators of hydro pneumatic suspension |
Publications (1)
| Publication Number | Publication Date |
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| CN108757806A true CN108757806A (en) | 2018-11-06 |
Family
ID=63966889
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810970334.XA Pending CN108757806A (en) | 2018-08-24 | 2018-08-24 | The double gas chamber piston accumulators of hydro pneumatic suspension |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113386332A (en) * | 2021-05-29 | 2021-09-14 | 广东达诚技术有限公司 | Double-push servo pre-stretching method and pre-stretching structure of forming machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5624105A (en) * | 1992-10-10 | 1997-04-29 | Hemscheidt Fahrwerktechnik Gmbh & Co. | Hydropneumatic suspension system |
| DE10251213A1 (en) * | 2002-08-28 | 2004-03-25 | Denk, Peter, Dipl.-Ing. | Shock absorber for bicycle has a main cylinder linked to at least two other cylinders via a selector switch to vary the suspension reaction to different terrain |
| US20070039790A1 (en) * | 2005-08-22 | 2007-02-22 | Technology Investments Limited | Vehicle suspension spring system |
| CN201027883Y (en) * | 2007-01-31 | 2008-02-27 | 钟祥市东风捷祥汽车减振器有限公司 | Oil-gas separated double-cylinder vibration absorber |
| EP2019228A2 (en) * | 2007-07-27 | 2009-01-28 | Manuel Carcaré Gimeno | Oil-hydraulic suspension cylinder |
| CN104417304A (en) * | 2013-08-22 | 2015-03-18 | 通用汽车环球科技运作有限责任公司 | Vehicle suspension system and method of controlling vehicle suspension system |
| CN106704441A (en) * | 2015-07-31 | 2017-05-24 | 张宏如 | Hydro-pneumatic suspension cylinder with controllable stroke |
| CN208669919U (en) * | 2018-08-24 | 2019-03-29 | 山东万通液压股份有限公司 | The double gas chamber piston accumulators of hydro pneumatic suspension |
-
2018
- 2018-08-24 CN CN201810970334.XA patent/CN108757806A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5624105A (en) * | 1992-10-10 | 1997-04-29 | Hemscheidt Fahrwerktechnik Gmbh & Co. | Hydropneumatic suspension system |
| DE10251213A1 (en) * | 2002-08-28 | 2004-03-25 | Denk, Peter, Dipl.-Ing. | Shock absorber for bicycle has a main cylinder linked to at least two other cylinders via a selector switch to vary the suspension reaction to different terrain |
| US20070039790A1 (en) * | 2005-08-22 | 2007-02-22 | Technology Investments Limited | Vehicle suspension spring system |
| CN201027883Y (en) * | 2007-01-31 | 2008-02-27 | 钟祥市东风捷祥汽车减振器有限公司 | Oil-gas separated double-cylinder vibration absorber |
| EP2019228A2 (en) * | 2007-07-27 | 2009-01-28 | Manuel Carcaré Gimeno | Oil-hydraulic suspension cylinder |
| CN104417304A (en) * | 2013-08-22 | 2015-03-18 | 通用汽车环球科技运作有限责任公司 | Vehicle suspension system and method of controlling vehicle suspension system |
| CN106704441A (en) * | 2015-07-31 | 2017-05-24 | 张宏如 | Hydro-pneumatic suspension cylinder with controllable stroke |
| CN208669919U (en) * | 2018-08-24 | 2019-03-29 | 山东万通液压股份有限公司 | The double gas chamber piston accumulators of hydro pneumatic suspension |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113386332A (en) * | 2021-05-29 | 2021-09-14 | 广东达诚技术有限公司 | Double-push servo pre-stretching method and pre-stretching structure of forming machine |
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