CN102128230B - Integral three-level damping controlled oil gas spring - Google Patents
Integral three-level damping controlled oil gas spring Download PDFInfo
- Publication number
- CN102128230B CN102128230B CN2011100076685A CN201110007668A CN102128230B CN 102128230 B CN102128230 B CN 102128230B CN 2011100076685 A CN2011100076685 A CN 2011100076685A CN 201110007668 A CN201110007668 A CN 201110007668A CN 102128230 B CN102128230 B CN 102128230B
- Authority
- CN
- China
- Prior art keywords
- valve
- damping
- orifice
- hydro
- plunger
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to an integral three-level damping controlled oil gas spring, and belongs to the field of engineering elements or engineering parts. In the integral three-level damping controlled oil gas spring, an integral oil gas spring structure is assembled by adopting a piston, a cylinder barrel, an energy accumulator and a controlled damping valve assembly; oil flows between the cylinder barrel and the energy accumulator in a reciprocating mode by the reciprocating motion of the piston; the pressure of the oil is changed with the change of the volume of gas in the energy accumulator, and the oil gas spring generates a spring force; and the controlled damping valve assembly is arranged between the cylinder barrel and the energy accumulator; and when the oil flows through the controlled damping valve assembly, the throttling action of a controlled damping valve on the oil is controlled, and the oil gas spring generates a controlled damping force. In the integral three-level damping controlled oil gas spring, three-level damping can be adjusted by adopting a damping valve structure with a normal-open throttling hole and two controlled bypass throttling channels; and the spring has a simple structure and simple control, and is easy to realize and convenient to maintain.
Description
Technical field
The present invention relates to the hydro-pneumatic spring of means of transportation, particularly the controlled hydro-pneumatic spring of integrated type three-stage damping belongs to engineering element or field of components.
Background technique
Hydro-pneumatic spring has good application prospects as a kind of automotive suspension elastic damping element of function admirable aspect special vehicle and the off-road vehicle.In vehicle traveling process, hydro-pneumatic spring relaxes the impact on ground through the acting in conjunction of accumulator and orifice valve, and the vibration of decay automobile to improve vehicle running smoothness, improves vehicle handling stability.
General hydro-pneumatic spring is provided with orifice valve in inside, and the damping characteristic of orifice valve is that preset and uncontrollable.But automobile under steam, and different driving cycles has different requirement to the damping characteristic of suspension.Therefore, hydro-pneumatic spring need adopt the controllable damping valve, and changes damping characteristic according to driving cycle control orifice valve, produces different dampings, makes automobile suspension system have more performance.
Occurred the controlled vibration damper of damping on some high-grade automobiles, the structure of this type of damping control executing mechanism designs based on vibration damper, can not directly apply to hydro-pneumatic spring.Also have some hydro-pneumatic springs to adopt the structural type that the controllable damping valve is external, this type of hydro-pneumatic spring structure is compact inadequately, has increased and has arranged installation difficulty on the vehicle.
Summary of the invention
The objective of the invention is in order to improve vehicle running smoothness, to improve vehicle handling stability, and provide the integrated type three-stage damping controlled hydro-pneumatic spring.
The objective of the invention is to realize through following technical proposals:
The controlled hydro-pneumatic spring of integrated type three-stage damping of the present invention mainly is made up of plunger piston assembly, cylinder barrel assembly and controllable damping valve assembly three big assembly parts and accumulator and dirt-proof boot;
Plunger piston assembly comprises earrings, plunger, limiting stopper and limiting stopper fixing device; Wherein earrings is connected with the plunger lower end through screw thread; Limiting stopper is fixed on the upper end of plunger through the limiting stopper fixing device;
The cylinder barrel assembly comprises plunger sleeve pipe, plunger sleeve pipe gland, retainer, cylinder barrel and gudgeon; Wherein in the plunger sleeve pipe black box is housed and is used for plunger seal; Plunger sleeve pipe gland is connected with the cylinder barrel lower end through screw thread; And be pressed in the plunger sleeve pipe between cylinder barrel and the plunger sleeve pipe gland, retainer is installed in the upper end of plunger sleeve pipe gland, and gudgeon is connected cylinder barrel top;
The controllable damping valve assembly comprises damping valve body, orifice valve core assembly, throttle valve a, throttle valve b, switch electromagnetic valve a, switch electromagnetic valve b and air bleeder screw plug; The orifice valve core assembly is installed in the inside of damping valve body through screw thread, and the inside of damping valve body is divided into upper and lower two chambeies; Be furnished with four valve seats of upper and lower two rows and left and right symmetry on the damping valve body front altogether; Two valve seats that are positioned at a top row are used to install switch electromagnetic valve a, b, and the bottom outlet of these two valve seats communicates with the epicoele of damping valve inner; Two valve seats that are positioned at a following row are used to install throttle valve a14, b17, and the bottom outlet of these two valve seats communicates with the cavity of resorption of damping valve inner; Be processed with two intercommunicating pores vertically downward from the upper surface of damping valve body, two left and right symmetries of intercommunicating pore, the intercommunicating pore connection in left side is positioned at upper and lower two valve seats in left side, and the intercommunicating pore connection on right side is positioned at upper and lower two valve seats in right side; Two air bleeder screw plugs are respectively applied for left and right two intercommunicating pores of shutoff; The orifice valve core assembly comprises orifice valve core body, normal open hole bolt, compression valve block group, upholds valve block group and tightening nut; The center of orifice valve core body is useful on the center hole that normal open hole bolt is installed; And there are four compression valve openings and four rebound valve spans to arrange at circumferencial direction; And the end face at the upper surface of orifice valve core body compression valve opening is higher than the end face of upholding valve opening, is lower than the end face of extension valve opening at the end face of the lower surface compression valve opening of orifice valve core body; Corresponding four positions of upholding valve opening of upper surface at the orifice valve core body are processed with radial rebound valve hole slot, and corresponding four positions of compressing valve openings of lower surface at the orifice valve core body are processed with radial compression valve hole slot; Normal open hole bolt and tightening nut are fixed on compression valve block group and extension valve block group respectively the upper surface and the lower surface of orifice valve core body;
Plunger piston assembly is contained in the cylinder barrel assembly, carries out axial motion; The cylinder barrel assembly is fixedly connected with the controllable damping valve assembly and is integral, and Placement is that the lower end seam of damping valve body inserts the upper end of cylinder barrel and at circumferencial direction continuous welding one circle; Accumulator is installed on the damping valve body through screw thread; The dirt-proof boot lower end connects plunger, upper end attachment post plug sleeve;
Beneficial effect of the present invention:
Technological scheme of the present invention compared with prior art has following characteristics:
(1) simple in structure, be easy to realize.Hydro-pneumatic spring of the present invention is simple in structure, only is made up of piston, cylinder barrel, controllable damping valve and accumulator, and wherein throttle valve, the switch electromagnetic valve on accumulator and the controllable damping valve is standard piece, is convenient to produce in enormous quantities; The controllable damping valve adopts built-in structure, and compact structure is convenient to arrange that reliability is high.
(2) control is simple, easy to maintenance.The execution of hydro-pneumatic spring damping regulatory function of the present invention only depends on the switching electricity of switch electromagnetic valve to realize, control is simple.Switch electromagnetic valve is a standard piece, and price is cheaper, convenient maintenance and replacement.
Description of drawings:
Fig. 1-be the controlled secondary rigidity adaptive of the integrated type three-stage damping hydro-pneumatic spring plan view of the embodiment of the invention;
Fig. 2-be the controlled secondary rigidity adaptive of the integrated type three-stage damping hydro-pneumatic spring left view of the embodiment of the invention;
Fig. 3-be the controllable damping valve assembly plan view of the embodiment of the invention;
Fig. 4-be the orifice valve core body plan view of the embodiment of the invention;
Fig. 5-be the orifice valve core body A-B sectional view of the embodiment of the invention;
Fig. 6-be the orifice valve core body worm's eye view of the embodiment of the invention;
Fig. 7-be the orifice valve core assembly plan view of the embodiment of the invention;
Fig. 8-be the hydro-pneumatic spring damping force-speed characteristics of the embodiment of the invention;
Wherein: the 1-earrings; The 2-plunger; 3-plunger sleeve pipe; 4-plunger sleeve pipe gland; The 5-retainer; The 6-cylinder barrel; The 7-limiting stopper; 8-limiting stopper fixing device; The 9-gudgeon; 10-damping valve body; 11-orifice valve core assembly; The 12-air bleeder screw plug; The 13-accumulator; 14-throttle valve a; 15-switch electromagnetic valve a; 16-switch electromagnetic valve b; 17-throttle valve b; The 18-dirt-proof boot; 19-orifice valve core body; 20-normal open hole bolt; 21-compression valve block group; 22-upholds the valve block group; The 23-tightening nut; 24-compresses valve opening; 25-upholds valve opening; 26-rebound valve hole slot; 27-compression valve hole slot
Embodiment
The controlled hydro-pneumatic spring of integrated type three-stage damping of the present invention adopts piston, cylinder barrel, controllable damping valve and accumulator to be assembled into unitary whole formula hydro-pneumatic spring structure.The to-and-fro motion of piston impels fluid between cylinder barrel and accumulator, back and forth to flow, and the gas volume in the accumulator changes, and the pressure of fluid changes thereupon, and hydro-pneumatic spring produces spring force.The controllable damping valve is installed between cylinder barrel and the accumulator, and when fluid was flowed through the controllable damping valve, the controllable damping valve was controlled to the throttling action of fluid, and hydro-pneumatic spring produces controllable damping force.
The controllable damping valve adopts the structure of normal open throttle orifice and two controlled bypass tool circulation flow path parallel connections, realizes that three-stage damping is adjustable.The orifice valve assembly comprises a damping valve body, a damping spool, two throttle valve and two switch electromagnetic valves; The damping spool is installed in the damping valve body, and a normal open throttle orifice, one group of extension one-way valve and one group of compression one-way valve are arranged on the damping spool.Be processed with two bypass tool circulation flow paths on the damping valve body.A throttle valve and a switch electromagnetic valve are installed in series in every bypass tool circulation flow path.When switch electromagnetic valve switching electricity, the oil circuit at its place is in to be opened or closed condition, thereby makes total orifice size of orifice valve change, and damping force changes thereupon.
Below in conjunction with accompanying drawing and embodiment the present invention is described further:
The controlled hydro-pneumatic spring of integrated type three-stage damping of the present invention mainly is made up of plunger piston assembly, cylinder barrel assembly and controllable damping valve assembly three big assembly parts and accumulator and dirt-proof boot, its general assembly drawing such as Fig. 1,2 not.
Plunger piston assembly comprises earrings 1, plunger 2, limiting stopper 7 and limiting stopper fixing device 8.Earrings 1 is connected with plunger 2 lower ends through screw thread; Limiting stopper 7 is fixed on the upper end of plunger 2 through limiting stopper fixing device 8.
The cylinder barrel assembly comprises plunger sleeve pipe 3, plunger sleeve pipe gland 4, retainer 5, cylinder barrel 6 and gudgeon 9.In the plunger sleeve pipe 3 black box is housed and is used for plunger seal, plunger sleeve pipe gland 4 is connected with cylinder barrel 6 lower ends through screw thread, and is pressed in plunger sleeve pipe 3 between cylinder barrel 6 and the plunger sleeve pipe gland 4, and retainer 5 is used for the locking of plunger sleeve pipe gland 4; Gudgeon 9 is welded on cylinder barrel 6 tops.
The controllable damping valve assembly comprises damping valve body 10, orifice valve core assembly 11, throttle valve a14, throttle valve b17, switch electromagnetic valve a15, switch electromagnetic valve b16 and air bleeder screw plug 12.Throttle valve a14 is identical with the model of throttle valve b17, and switch electromagnetic valve a15 is identical with the model of switch electromagnetic valve b 16.Damping spool 11 is installed in the inside of damping valve body 10 through screw thread, and throttle valve a14, throttle valve b17 and switch electromagnetic valve a15, switch electromagnetic valve b16 are installed in respectively on the damping valve body 10 in the corresponding valve seat.
Plunger piston assembly is contained in the cylinder barrel assembly, can carry out axial motion.The cylinder barrel assembly is fixedly connected with the controllable damping valve assembly and is integral, and Placement is that the lower end seam of damping valve body 10 inserts the upper end of cylinder barrel 6 and at circumferencial direction continuous welding one circle.Accumulator 13 is installed on the damping valve body 10 through screw thread; Dirt-proof boot 18 lower ends connect plunger 2, upper end attachment post plug sleeve 3.
The rotary expansion sectional view of controllable damping valve assembly is as shown in Figure 3, and its structural feature is described below: orifice valve core assembly 11 is divided into upper and lower two chambeies with the inside of damping valve body 10.Be furnished with four valve seats of upper and lower two rows and left and right symmetry on damping valve body 10 fronts altogether.Two valve seats that are positioned at a top row are used to install switch electromagnetic valve a15, b16, and the bottom outlet of these two valve seats communicates with damping valve body 10 inner epicoeles.Two valve seats that are positioned at a following row are used to install throttle valve a14, b17, and the bottom outlet of these two valve seats communicates with damping valve body 10 inner cavity of resorptions.Be processed with two intercommunicating pores vertically downward from the upper surface of damping valve body 10, two left and right symmetries of intercommunicating pore, the intercommunicating pore connection in left side is positioned at upper and lower two valve seats in left side, and the intercommunicating pore connection on right side is positioned at upper and lower two valve seats in right side.Two air bleeder screw plugs 12 are respectively applied for left and right two intercommunicating pores of shutoff.Be hydro-pneumatic spring when oil-filled, air bleeder screw plug 12 also is used to emit cylinder barrel and the inner air of controllable damping valve.
Like this, the path that between upper and lower two chambeies of damping valve body 10 inside, just has three parallel connections.That is: path A, orifice valve core assembly 11 paths; Path B, switch electromagnetic valve a15 series throttle a14 path; Path C, switch electromagnetic valve b16 series throttle b17 path.Path A is a normal open, and its damping characteristic is by 11 decisions of orifice valve core assembly; The on-off of path B is by switch electromagnetic valve a15 decision, and its damping characteristic is determined by throttle valve a14; The on-off of path C is by switch electromagnetic valve b16 decision, and its damping characteristic is determined by throttle valve b17.All be provided with throttling on throttle valve a14 and the throttle valve b17 and regulate bolt, be used to adjust the damping characteristic of throttle valve.
The structure of orifice valve core assembly 11 is described below: orifice valve core assembly 11 comprises orifice valve core body 19, normal open hole bolt 20, compression valve block group 21, upholds valve block group 22 and tightening nut 23; The structural drawing of orifice valve core body 19 is like Fig. 4,5, shown in 6, and the center of orifice valve core body 19 is useful on the center hole that normal open hole bolt 20 is installed, and has four compression valve openings 24 and four extension valve openings 25 to be spaced at circumferencial direction; Corresponding four positions of upholding valve opening 25 of upper surface at orifice valve core body 19 are processed with radial rebound valve hole slot 26, and corresponding four positions of compressing valve openings 24 of lower surface at orifice valve core body 19 are processed with radial compression valve hole slot 27; The structural drawing of orifice valve core assembly is as shown in Figure 7, and 23 compressions of normal open hole bolt 20 and tightening nut valve block group 21 and extension valve block group 22 are separately fixed at the upper surface and the lower surface of orifice valve core body 19; Compression valve block group 21 can cover compression valve opening 24, upholds valve opening 25 but can not cover, and upholds valve block group 22 and can cover extension valve opening 25, but can not cover compression valve opening 24.
When hydro-pneumatic spring compressed, fluid flow through orifice valve core assembly 11 from bottom to top, and this moment, fluid was divided into two-way, the one road from the normal open hole normal open orifice flow mistake in the bolt 20; Another road flows into compression valve opening 24 and pushes compression valve block group 21 open from compression valve hole slot 27 flows out.When hydro-pneumatic spring was upheld, fluid flow through orifice valve core assembly 11 from the top down, and this moment, fluid was divided into two-way, the one road from the normal open hole normal open orifice flow mistake in the bolt 20; Another road flows into to uphold valve opening 25 and push extension valve block group 22 open from rebound valve hole slot 26 flows out.Because the sheet number of compression valve block is different from the sheet number of upholding valve block, the compression damping characteristic of orifice valve core assembly 11 and extension damping characteristic and inequality.
The three kinds of damping modes and the implementation thereof of the controlled hydro-pneumatic spring of three-stage damping are described below:
When switch electromagnetic valve a15 and switch electromagnetic valve b16 closed simultaneously, fluid through throttle valve, did not produce bigger damping force, and hydro-pneumatic spring is " firmly " damping mode; When switch electromagnetic valve a15 opens and switch electromagnetic valve b16 when closing, fluid produces medium damping force through throttle valve a14, hydro-pneumatic spring be " in " damping mode; When switch electromagnetic valve a15 closes and switch electromagnetic valve b16 when opening, fluid produces medium damping force through throttle valve b17, hydro-pneumatic spring be " in " damping mode; When switch electromagnetic valve a15 and switch electromagnetic valve b16 opened simultaneously, fluid produced less damping force through throttle valve a14 and throttle valve b17, and hydro-pneumatic spring is " soft " damping mode.
Thereby damping force and damping mode tabulation that the throttle valve that the open and close state of switch electromagnetic valve a15 and switch electromagnetic valve b16, corresponding control fluid are flowed through obtains are as shown in table 1:
The three-stage damping pattern that the open and close state of table 1 switch electromagnetic valve a15 and switch electromagnetic valve b16 is corresponding
The controlled hydro-pneumatic spring of integrated type three-stage damping through to the embodiment of the invention makes an experiment, and the result shows:
1, the controlled hydro-pneumatic spring of integrated type three-stage damping of the present invention can produce desired three-stage damping, and hydro-pneumatic spring is functional, and damping characteristic is stable.Damping force-speed characteristic curve is as shown in Figure 5.
2, the controlled hydro-pneumatic spring of integrated type three-stage damping of the present invention, the adjustment range of its damping force is bigger, can satisfy the needs of three grades of controls of automobile controllable suspension system damping.
Claims (3)
1. the controlled hydro-pneumatic spring of integrated type three-stage damping is characterized in that: comprise plunger piston assembly, cylinder barrel assembly and controllable damping valve assembly three big assembly parts and accumulator and dirt-proof boots; Plunger piston assembly comprises earrings (1), plunger (2), limiting stopper (7) and limiting stopper fixing device (8); Wherein earrings (1) is connected with plunger (2) lower end through screw thread; Limiting stopper (7) is fixed on the upper end of plunger (2) through limiting stopper fixing device (8); The cylinder barrel assembly comprises plunger sleeve pipe (3), plunger sleeve pipe gland (4), retainer (5), cylinder barrel (6) and gudgeon (9); Wherein in the plunger sleeve pipe (3) black box is housed and is used for plunger seal; Plunger sleeve pipe gland (4) is connected with cylinder barrel (6) lower end through screw thread; And be pressed in plunger sleeve pipe (3) between cylinder barrel (6) and the plunger sleeve pipe gland (4); Retainer (5) is installed in the upper end of plunger sleeve pipe gland (4), and gudgeon (9) is connected cylinder barrel (6) top; The controllable damping valve assembly comprises damping valve body (10), orifice valve core assembly (11), throttle valve a (14), throttle valve b (17), switch electromagnetic valve a (15), switch electromagnetic valve b (16) and air bleeder screw plug (12); Orifice valve core assembly (11) is installed in the inside of damping valve body (10) through screw thread, and the inside of damping valve body (10) is divided into upper and lower two chambeies; Be furnished with four valve seats of upper and lower two rows and left and right symmetry on damping valve body (10) front altogether; Two valve seats that are positioned at a top row are used to install switch electromagnetic valve a (15), b (16), and the bottom outlet of these two valve seats communicates with the inner epicoele of damping valve body (10); Two valve seats that are positioned at a following row are used to install throttle valve a (14), b (17), and the bottom outlet of these two valve seats communicates with the inner cavity of resorption of damping valve body (10); Be processed with two intercommunicating pores vertically downward from the upper surface of damping valve body (10), two left and right symmetries of intercommunicating pore, the intercommunicating pore connection in left side is positioned at upper and lower two valve seats in left side, and the intercommunicating pore connection on right side is positioned at upper and lower two valve seats in right side; Two air bleeder screw plugs (12) are respectively applied for left and right two intercommunicating pores of shutoff; Orifice valve core assembly (11) comprises orifice valve core body (19), normal open hole bolt (20), compression valve block group (21), upholds valve block group (22) and tightening nut (23); The center of orifice valve core body (19) is useful on the center hole that normal open hole bolt is installed; And circumferencial direction have four the compression valve openings (24) with four the extension valve openings (25) be spaced; And the end face at the upper surface of orifice valve core body (19) compression valve opening (24) is higher than the end face of upholding valve opening (25), is lower than the end face of upholding valve opening (25) at the end face of the lower surface compression valve opening (24) of orifice valve core body (19); Corresponding four positions of upholding valve opening (25) of upper surface at the orifice valve core body are processed with radial rebound valve hole slot (26), and corresponding four positions of compressing valve openings (24) of lower surface at the orifice valve core body are processed with radial compression valve hole slot (27); Normal open hole bolt (20) and tightening nut (23) are compression valve block group (21) and uphold upper surface and the lower surface that valve block group (22) is separately fixed at orifice valve core body (19); Plunger piston assembly is contained in the cylinder barrel assembly, carries out axial motion; The cylinder barrel assembly is fixedly connected with the controllable damping valve assembly and is integral, and Placement is that the lower end seam of damping valve body (10) inserts the upper end of cylinder barrel (6) and at circumferencial direction continuous welding one circle; Accumulator (13) is installed on the damping valve body (10) through screw thread; Dirt-proof boot (18) lower end connects plunger (2), upper end attachment post plug sleeve (3).
2. the controlled hydro-pneumatic spring of integrated type three-stage damping as claimed in claim 1 is characterized in that: when hydro-pneumatic spring compressed, fluid flow through orifice valve core assembly (11) from bottom to top, and this moment, fluid was divided into two-way, one road normal open orifice flow mistake in the bolt of normal open hole; Another road flows into the compression valve opening and pushes compression valve block group open from the compression valve hole slot flows out; When hydro-pneumatic spring was upheld, fluid flow through orifice valve core assembly (11) from the top down, and this moment, fluid was divided into two-way, one road normal open orifice flow mistake in the bolt of normal open hole; Another road flows into to uphold valve opening and push extension valve block group open from the rebound valve hole slot flows out.
3. the controlled hydro-pneumatic spring of integrated type three-stage damping as claimed in claim 1; It is characterized in that: the three kinds of damping modes and the implementation thereof of the controlled hydro-pneumatic spring of three-stage damping are described below: as switch electromagnetic valve a (15) and switch electromagnetic valve b (16) when closing simultaneously; Fluid does not pass through throttle valve; Produce bigger damping force, hydro-pneumatic spring is " firmly " damping mode; When switch electromagnetic valve a (15) opens and switch electromagnetic valve b (16) when closing, fluid produces medium damping force through throttle valve a (14), hydro-pneumatic spring be " in " damping mode; When switch electromagnetic valve a (15) closes and switch electromagnetic valve b (16) when opening, fluid produces medium damping force through throttle valve b (17), hydro-pneumatic spring be " in " damping mode; As switch electromagnetic valve a (15) and switch electromagnetic valve b (16) when opening simultaneously, fluid produces less damping force through throttle valve a (14) and throttle valve b (17), and hydro-pneumatic spring is " soft " damping mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100076685A CN102128230B (en) | 2011-01-14 | 2011-01-14 | Integral three-level damping controlled oil gas spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100076685A CN102128230B (en) | 2011-01-14 | 2011-01-14 | Integral three-level damping controlled oil gas spring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102128230A CN102128230A (en) | 2011-07-20 |
| CN102128230B true CN102128230B (en) | 2012-07-04 |
Family
ID=44266446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100076685A Expired - Fee Related CN102128230B (en) | 2011-01-14 | 2011-01-14 | Integral three-level damping controlled oil gas spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102128230B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937159A (en) * | 2012-10-31 | 2013-02-20 | 江苏大学 | Integrated hydro-pneumatic spring device |
| CN105909717B (en) * | 2016-06-16 | 2018-06-01 | 江苏大学 | A kind of damper electricity consumption proportional-type damps regulating valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090901U (en) * | 1991-01-28 | 1991-12-18 | 北京理工大学 | Adjustable anti-vibration damp |
| CN2382895Y (en) * | 1999-08-13 | 2000-06-14 | 清华大学 | Inner fixed electromagnetic solenoic three stage adjustable damper vibration reducer |
| CN1584359A (en) * | 2004-05-31 | 2005-02-23 | 吉林大学 | Leakage-proof oil-gas spring |
| EP1591690A1 (en) * | 2003-01-17 | 2005-11-02 | Yamaha Hatsudoki Kabushiki Kaisha | Hydraulic shock absorber for motor vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008087660A1 (en) * | 2007-01-19 | 2008-07-24 | Tvs Motor Company Limited | Shock absorber for an automobile |
-
2011
- 2011-01-14 CN CN2011100076685A patent/CN102128230B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090901U (en) * | 1991-01-28 | 1991-12-18 | 北京理工大学 | Adjustable anti-vibration damp |
| CN2382895Y (en) * | 1999-08-13 | 2000-06-14 | 清华大学 | Inner fixed electromagnetic solenoic three stage adjustable damper vibration reducer |
| EP1591690A1 (en) * | 2003-01-17 | 2005-11-02 | Yamaha Hatsudoki Kabushiki Kaisha | Hydraulic shock absorber for motor vehicle |
| CN1584359A (en) * | 2004-05-31 | 2005-02-23 | 吉林大学 | Leakage-proof oil-gas spring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102128230A (en) | 2011-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102094927B (en) | Integral type pneumatic spring with controllable third-level damp and adaptive second-level stiffness | |
| US8573606B1 (en) | Shock absorber for vehicle | |
| US10539202B2 (en) | Vehicular shock absorber and method for controlling same | |
| US7604101B2 (en) | Damping force control valve and shock absorber using the same | |
| US20090078517A1 (en) | Damping force adjusting structure of hydraulic shock absorber | |
| EP1505315B1 (en) | Hydraulic shock absorber | |
| CN104379960B (en) | For damping system between the two-region of amortisseur | |
| KR20150105408A (en) | Passive and active suspension with optimization of energy usage | |
| WO2008045470A2 (en) | Shock absorber having a continuously variable semi-active valve | |
| CN103423364A (en) | Hydraulic damper with adjustable damping | |
| CN111137095A (en) | Rigidity and damping multistage adjustable hydro-pneumatic suspension and control method | |
| CN103195856A (en) | Parameter variable hydro-pneumatic spring | |
| CN104603495B (en) | Multi-tuneable degressive valve | |
| US20150247547A1 (en) | Suspension device | |
| WO2022257899A1 (en) | Multi-stage adjustment damping valve, and shock absorber and suspension system using same | |
| CN201068948Y (en) | Damping adjustable vibration absorber | |
| CN102128230B (en) | Integral three-level damping controlled oil gas spring | |
| KR100507756B1 (en) | Apparatus for adjusting a damping force of a shock absorber using magnetoreological fluid | |
| CN201317237Y (en) | Adjustable oil-gas suspension with controllable throttle area and three-level damping | |
| CN103775554B (en) | The stepless adjustable hydro-pneumatic spring of double bolloon formula rigidity | |
| CN101994774B (en) | Lateral damper with double-acting valve structure | |
| CN201071898Y (en) | Compression damping valve of hydraulic buffer | |
| CN202612461U (en) | Air spring with additional air chamber | |
| CN201385558Y (en) | Valve opening pressure controllable type three-level damper adjustable oil-gas suspension | |
| CN2881212Y (en) | Regulatable restoration buffer valve of hydraulic shock absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20140114 |