CN208010840U - R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel - Google Patents

R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel Download PDF

Info

Publication number
CN208010840U
CN208010840U CN201820131629.3U CN201820131629U CN208010840U CN 208010840 U CN208010840 U CN 208010840U CN 201820131629 U CN201820131629 U CN 201820131629U CN 208010840 U CN208010840 U CN 208010840U
Authority
CN
China
Prior art keywords
check valve
turbine
parallel
section
capillary
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.)
Active
Application number
CN201820131629.3U
Other languages
Chinese (zh)
Inventor
瀹瑰己
容强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
South China University of Technology SCUT
Original Assignee
South China University of Technology SCUT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by South China University of Technology SCUT filed Critical South China University of Technology SCUT
Priority to CN201820131629.3U priority Critical patent/CN208010840U/en
Application granted granted Critical
Publication of CN208010840U publication Critical patent/CN208010840U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

R formula vehicle shock absorbers recovering energy the utility model discloses a kind of single turbine and in parallel;On it on the pipeline between bunker and lower bunker oil transportation mouth, it is in series with capillary resistance trimming section in parallel, capillary transferring frequency range in parallel, single turbine energy regenerating section.Single turbine energy regenerating section includes:Check valve V6, check valve V3, check valve V4, check valve V5, turbine T and generator G.When hydraulic oil by the A hydraulic fluid ports of upper bunker followed by resistance trimming section, frequency modulation section, check valve V3, turbine T, check valve V4When into lower bunker;Hydraulic oil pushes turbine T, turbine T driving generator G power generations;Realize the vibration energy-dissipation recycling of extension stroke.Correspondingly, damper can also realize the vibration energy-dissipation recycling of compression travel.The utility model solves the problems, such as that vibration energy-dissipation is irretrievable.The running temperature of hydraulic oil can also be reduced simultaneously, improve the service life of damper.

Description

R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel
Technical field
It is recovering energy the utility model is related to hydraulic type automobile damper field more particularly to a kind of single turbine and in parallel R formula vehicle shock absorbers.
Background technology
The vibration damping mode of automobile mainly has fluid pressure type, vapour-pressure type, electromagnetic type.Fluid pressure type is to use to obtain widest automobile at present Vibration damping mode.Hydraulic oil in hydraulic vibration absorber needs to generate damping in oscillatory process, and the process for generating damping is one A process to require the expenditure of energy.The energy that the oscillatory process consumes is known as vibration energy-dissipation by us.Currently, fluid pressure type vibration damping The vibration energy-dissipation of device is the energy slatterned, the reason is that not having vibration energy-dissipation retracting device in hydraulic buffer.
As shown in Figure 1, this is a matrix and the damper of parallel capillary tube variable system intrinsic frequency.It includes vehicle Frame, spring, cylinder body, upper bunker, piston, lower bunker, axle, resistance trimming section, frequency modulation section.
Resistance trimming section by 4 road capillaries in parallel, solenoid valve block at.This 4 road capillary all disk is at M types.This 4 road capillary It is capillary R8, R4, R2, R1 respectively;Their equal length and respectively series connection solenoid valve VR8、VR4、VR2、VR1.This 4 tunnel capillary The area ratio of pipe is 8:4:2:1;I.e. their area is arranged according to 8421 binary coding rule.Adjust electromagnetism Valve VR8、VR4、VR2、VR1Configuration SRnI.e. adjustable damping.
Frequency modulation section by 4 road capillaries in parallel, solenoid valve block at.This 4 road capillary all disk is at M types.This 4 road capillary It is capillary m8, m4, m2, m1 respectively;Their equal length and respectively series connection solenoid valve Vm8、Vm4、Vm2、Vm1.This 4 tunnel capillary The area ratio of pipe is 8:4:2:1;I.e. their area is arranged according to 8421 binary coding rule.This four road hair The diameter d of the minimum capillary m1 of tubulem1More than the maximum capillary diameter d of resistance trimming sectionR8One times or more.Electromagnetic valve for adjusting Vm8、 Vm4、Vm2、Vm1Configuration SmnThat is adjustable systems intrinsic frequency.
In hydraulic vibration absorber as shown in Figure 1, because not having vibration energy-dissipation retracting device, there is oscillations to consume It can irretrievable problem.
Invention content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts and deficiency provide a kind of single turbine recycling energy R formulas vehicle shock absorber amount and in parallel, solves the problems, such as that vibration energy-dissipation is irretrievable.
The utility model is achieved through the following technical solutions:
R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel, including vehicle frame 1, axle 7 and hydraulic cylinder 3;It is described The upper end of hydraulic cylinder 3 connects axle 7 by its piston rod connecting vehicle frame 1, the lower end cylinder body of hydraulic cylinder 3;Piston in hydraulic cylinder 3 5 divide hydraulic cylinder 3 for upper bunker 4 and lower bunker 6;On pipeline between 6 oil transportation mouth of its described upper bunker 4 and lower bunker, from upper It is connected with resistance trimming section, frequency modulation section, single turbine energy regenerating section under and in turn;That is, the D hydraulic fluid ports of resistance trimming section connect the A oil of upper bunker 4 Mouthful, the C hydraulic fluid ports of resistance trimming section connect the G hydraulic fluid ports of frequency modulation section, are set on the oil circuit between the H hydraulic fluid ports of frequency modulation section and the B hydraulic fluid ports of lower bunker 6 Set single turbine energy regenerating section;
The single turbine energy regenerating section includes:Check valve V6, check valve V3, check valve V4, check valve V5, turbine T and hair Motor G;
The import of the turbine T is respectively communicated with check valve V by O three-way pipes3Outlet and check valve V5Outlet;
The outlet of the turbine T is respectively communicated with check valve V by P three-way pipes6Import and check valve V4Import;
The check valve V3Import and check valve V6Outlet by M three-way pipes be connected to frequency modulation section H hydraulic fluid ports;
The check valve V4Outlet and check valve V5Import pass through the B hydraulic fluid ports of the lower bunker of N three-way pipes connection 6;
The transmission shaft of turbine T and the rotor of generator connect.
The resistance trimming section includes four road capillaries of parallel connection;This four roads capillary is in series with solenoid valve;
The frequency modulation section includes four road capillaries of parallel connection;This four roads capillary is in series with solenoid valve.
The capillary paralleling end of the frequency modulation section is G hydraulic fluid ports, and the parallel connected end of solenoid valve is H hydraulic fluid ports.
Tetra- road capillary pipe lengths of the frequency modulation Duan are equal.
The ratio between the sectional area of tetra- road capillaries of the frequency modulation Duan is 8:4:2:1;I.e. their sectional area is according to 8421 Binary coding rule arrange.
In tetra- road capillaries of the frequency modulation Duan, the diameter d of minimum capillary m1m1Than the maximum capillary R8 of resistance trimming section Diameter dR8It is twice above.
Capillary in the resistance trimming section and frequency modulation section, disk are at " M " shape, serpentine shape or spiral-shaped.
Solenoid valve in the resistance trimming section and frequency modulation section is also connect with control system;Control system is for controlling each solenoid valve Break-make.
Spring 2 is equipped between vehicle frame 1 and axle 7.
The energy reclaiming method of R formula vehicle shock absorbers that the utility model single turbine recovers energy and in parallel is as follows:
The vibration energy-dissipation recycling step of extension stroke:
Hydraulic oil is by the A hydraulic fluid ports of upper bunker 4 followed by resistance trimming section, frequency modulation section, check valve V3, turbine T, check valve V4Into Enter lower bunker 6;
The hydraulic oil is while flowing through turbine T, the rotor operating power generation of turbine T driving generators G;It realizes and upholds row The vibration energy-dissipation of journey recycles;
The vibration energy-dissipation recycling step of compression travel:
Hydraulic oil is by the B hydraulic fluid ports of lower bunker 6 followed by check valve V5, turbine T, check valve V6, frequency modulation section, resistance trimming section into Enter upper bunker 4;
The hydraulic oil is while flowing through turbine T, the rotor operating power generation of turbine T driving generators G;Realize compressed line The vibration energy-dissipation of journey recycles.
The utility model compared with the existing technology, has the following advantages and effect:
The utility model is skillfully constructed, is cheap, technological means is simple and easy to do.Pass through having for check valve principle and turbine Machine combines, and pushing generator power generation solves the problems, such as that the vibration energy-dissipation of vehicle shock absorber is irretrievable;At the same time it can also drop The running temperature of low hydraulic oil, the service life for improving damper.Development of the utility model to Hyundai Motor damping technology, tool There is advantageous effect positive, outstanding.
Description of the drawings
Fig. 1 is existing matrix and the damper structure schematic diagram of parallel capillary tube variable system intrinsic frequency.
Fig. 2 is the utility model structure diagram.
Specific implementation mode
The utility model is more specifically described in detail with reference to specific embodiment.
Embodiment
As shown in Fig. 2.
Resistance trimming section includes that four road capillaries are R8, R4, R2, R1 respectively;Their equal lengths and respectively series connection solenoid valve VR8、 VR4、VR2、VR1Control its work.The ratio between the sectional area of this four roads capillary is 8:4:2:1;Their length is LR
Frequency modulation section includes that four road capillaries are m8, m4, m2, m1 respectively;Their equal lengths and respectively series connection solenoid valve Vm8、 Vm4、Vm2、Vm1Control its work;The ratio between the sectional area of this four roads capillary is 8:4:2:1;Their length is Lm.In this reality It applies in example, the length L of this four roads capillarymEqual to the length L of resistance trimming section capillaryR.Minimum capillary m1 in this four roads capillary Diameter dm1The diameter d of resistance trimming section maximum capillary R8 equal to 4 timesR8
Single turbine energy regenerating section includes check valve V3, check valve V4, check valve V5, check valve V6, turbine T, generator G. The maximum stream flow Q of turbine TTmaxThan damper maximum hydraulic pressure oil stream amount QSmaxIt is big by 10%;I.e.:QTmax=1.1QSmax
When generating relative motion between vehicle frame and axle, piston can generate accordingly or the movement of up or down;Piston to Upper shift motion is extension stroke, and the stroke that piston moves down is compression travel.The hydraulic oil in hydraulic cylinder 3 can pass through at this time Resistance trimming section, frequency modulation section, single turbine energy regenerating section between A hydraulic fluid ports, B hydraulic fluid ports, and then lower bunker 6 is flowed to from upper bunker 4, or Upper bunker 4 is flowed to from lower bunker 6.
Due to the viscous effect of hydraulic oil in cylinder body, when hydraulic oil flows through resistance trimming section, the capillary that works in resistance trimming section Damping can be generated to the flowing of hydraulic oil, to form the damping moved to piston;The size of the damping is passed through by control system The configuration S of solenoid valveRnControl, and then realize the resistance trimming of resistance trimming section;
When hydraulic oil flows through frequency modulation section, change the configuration S of solenoid valve by control systemmn, then adjustable vibration-damper System frequency, and then realize the frequency modulation of frequency modulation section;
When hydraulic oil passes through single turbine energy regenerating section, passed through from M three-way pipes according to the flow direction of hydraulic oil or hydraulic oil Cross check valve V3, turbine T, check valve V4The lower bunker 6 of flow direction, while the G power generations of turbine T drawing generators, realize shaking for extension stroke Swing energy consumption recycling;Or hydraulic oil passes through check valve V from lower bunker 65, turbine T, check valve V6Flow to M three-way pipes, while turbine T The vibration energy-dissipation recycling of compression travel is realized in drawing generator G power generations;It is irretrievable just to solve vibration energy-dissipation for we in this way Problem.
Now the present embodiment is described further by following three points.
1, the operation principle about single turbine energy regenerating section
When hydraulic oil needs flow to N three-way pipes from M three-way pipes, piston moves up, and this trip is extension stroke, because Check valve V5、V6Cut-off effect, hydraulic oil be merely able to from M three-way pipes pass through check valve V3, turbine T, check valve V4The lower oil of flow direction Storehouse 6;Hydraulic oil pushes the wheel rotation of turbine T, the G power generations of turbine T drawing generators to realize the vibration energy-dissipation of extension stroke simultaneously Recycling.
When hydraulic oil needs flow to M three-way pipes from N three-way pipes, piston moves down, and this trip is compression travel, because Check valve V3、V4Cut-off effect, hydraulic oil be merely able to from N three-way pipes pass through check valve V5, turbine T, check valve V6Flow to M tri- Siphunculus;Hydraulic oil pushes the wheel rotation of turbine T, the G power generations of turbine T drawing generators to realize the oscillation consumption of compression travel simultaneously It can recycling.
2, about resistance trimming section, the order of connection of frequency modulation section, single turbine energy regenerating section
Resistance trimming section, frequency modulation section, the order of connection of single turbine energy regenerating section are other than according to being linked in sequence of such as Fig. 2, also It can be connected according to frequency modulation section, single turbine energy regenerating section, resistance trimming section, it is of course also possible to according to single turbine energy regenerating section, adjust Resistance section, frequency modulation section etc. are linked in sequence.
3, the title about " single turbine recovering energy and R formulas vehicle shock absorber in parallel "
In the title of " single turbine recovering energy and R formulas vehicle shock absorber in parallel ", first in " and in parallel " " simultaneously " indicate that resistance trimming section is adjusted with parallel capillary, second " simultaneously " indicates that frequency modulation section is adjusted with parallel capillary.Its " R The meaning that formula " indicates is as follows:
In the resistance trimming section of capillary, with capillary R8, R4, R2, R1 and its corresponding solenoid valve control system control Under mode that the resistance (Resistance) of damper is adjusted.Its main feature is that:Other than hydraulic cylinder body, according to capillary Resistance (Resistance) characteristic of pipe, by the multichannel of in parallel (or series connection) (can be four tunnels can also four tunnel of right and wrong) capillary Pipe according to specific parameter (such as:The flow resistance etc. of hydraulic oil under area or length or some operating mode) according to certain Rule (such as:The binary coding rule of 8421 equal ratios or other equal ratios or non-equal ratio are regular) it arranges, pass through control System is controlled to achieve the purpose that adjust damping to the solenoid valve of corresponding capillary.The above is exactly in resistance trimming section The meaning of " R formulas ".
In frequency modulation section, because the structure that we adjust frequency by capillary adjusts damping in the way of with above-mentioned capillary Structure has many similarities with mode, so we, which will utilize capillary and solenoid valve to reach, adjusts the intrinsic frequency of damper system The mode of rate is also referred to as " R formulas ".It is as follows in the meaning specific explanations of frequency modulation section, " R formulas ":
In the frequency modulation section of capillary, with capillary m8, m4, m2, m1 and its corresponding solenoid valve control system control Under mode that damper system intrinsic frequency is adjusted.Its main feature is that:Other than hydraulic cylinder body, capillary caliber is utilized Its resistance (Resistance) small characteristic when big, according to the capacity characteristic of capillary, the multichannel by (or series connection) in parallel (can Tetra- tunnels Yi Shi can also four tunnel of right and wrong) capillary according to specific parameter (such as:Area or length or volume etc.) according to Certain rule (such as:The binary coding rule of 8421 equal ratios or other equal ratios or non-equal ratio are regular) it arranges, pass through Control system to the solenoid valve of corresponding capillary controlled to reach by adjust the quality of the hydraulic oil for participating in oscillation into And achieve the purpose that adjust damper system intrinsic frequency.
When as long as damper has any one meaning in above-mentioned two " R formulas " meaning, it is known as R formulas by us Damper or R formula vehicle shock absorbers.In R formula dampers, when existing capillary resistance trimming section also has capillary frequency modulation section, Resistance trimming section, the way of frequency modulation section capillary can be equal, can not also wait.The capillary of R formula dampers removes and is processed into " M " shape The other shapes such as helically shaped, serpentine shape can also be processed outside.These types of shape is only specific listed several shapes, Many shapes can also be set out in practical application, it can be depending on specific requirement be flexible.
In addition, in R formula dampers, how carefully capillary is not necessarily intended to, and so-called refers to carefully just that hydraulic oil flows through capillary It will produce resistance when pipe;That is, the capillary described in us is exactly hydraulic oil will produce when flowing through resistance oil pipe or Oil circuit.
As described above, the utility model can be realized preferably.
The embodiment of the utility model is simultaneously not restricted to the described embodiments, other are any without departing from the utility model Changes, modifications, substitutions, combinations, simplifications made by under Spirit Essence and principle, should be equivalent substitute mode, are included in Within the scope of protection of the utility model.

Claims (9)

  1. R formula vehicle shock absorbers that 1. a kind of single turbine recovers energy and in parallel, including vehicle frame (1), axle (7) and hydraulic cylinder (3); The upper end of the hydraulic cylinder (3) passes through its piston rod connecting vehicle frame (1), the lower end cylinder body connection axle (7) of hydraulic cylinder (3);Liquid Hydraulic cylinder (3) is divided into upper bunker (4) and lower bunker (6) by the piston (5) in cylinder pressure (3);It is characterized in that:The upper bunker (4) on the pipeline between lower bunker (6) oil transportation mouth, resistance trimming section, frequency modulation section, single turbine energy is connected in turn from top to bottom and is returned Receive section;That is, the A hydraulic fluid ports of the upper bunker (4) of D hydraulic fluid ports connection of resistance trimming section, the G hydraulic fluid ports of the C hydraulic fluid ports connection frequency modulation section of resistance trimming section, frequency modulation Single turbine energy regenerating section is set on oil circuit between the H hydraulic fluid ports and the B hydraulic fluid ports of lower bunker (6) of section;
    The single turbine energy regenerating section includes:Check valve V6, check valve V3, check valve V4, check valve V5, turbine T and generator G;
    The import of the turbine T is respectively communicated with check valve V by O three-way pipes3Outlet and check valve V5Outlet;
    The outlet of the turbine T is respectively communicated with check valve V by P three-way pipes6Import and check valve V4Import;
    The check valve V3Import and check valve V6Outlet by M three-way pipes be connected to frequency modulation section H hydraulic fluid ports;
    The check valve V4Outlet and check valve V5Import pass through the B hydraulic fluid ports of the lower bunker (6) of N three-way pipes connection;
    The transmission shaft of turbine T and the rotor of generator connect.
  2. 2. single turbine is recovering energy according to claim 1 and R formulas vehicle shock absorber in parallel, it is characterised in that:
    The resistance trimming section includes four road capillaries of parallel connection, this four roads capillary is in series with solenoid valve;
    The frequency modulation section includes four road capillaries of parallel connection;This four roads capillary is in series with solenoid valve.
  3. 3. single turbine is recovering energy according to claim 2 and R formulas vehicle shock absorber in parallel, it is characterised in that:The tune The capillary paralleling end of frequency range is G hydraulic fluid ports, and the parallel connected end of solenoid valve is H hydraulic fluid ports.
  4. 4. single turbine is recovering energy according to claim 2 and R formulas vehicle shock absorber in parallel, it is characterised in that:The tune Four road capillary pipe lengths of frequency range are equal.
  5. 5. single turbine is recovering energy according to claim 2 and R formulas vehicle shock absorber in parallel, it is characterised in that:The tune The ratio between the sectional area of four road capillaries of frequency range is 8:4:2:1;I.e. their sectional area is advised according to 8421 binary coding Then arrange.
  6. 6. single turbine is recovering energy according to claim 5 and R formulas vehicle shock absorber in parallel, it is characterised in that:The tune In four road capillaries of frequency range, the diameter d of minimum capillary m1m1Than the diameter d of the maximum capillary R8 of resistance trimming sectionR8It is twice More than.
  7. 7. R formulas vehicle shock absorber being recovered energy according to any one of claim 1 to 6 single turbine and in parallel, feature It is:Capillary in the resistance trimming section and frequency modulation section, disk are at " M " shape, serpentine shape or spiral-shaped.
  8. 8. single turbine is recovering energy according to claim 7 and R formulas vehicle shock absorber in parallel, it is characterised in that:The tune Solenoid valve in resistance section and frequency modulation section is also connect with control system;Control system is used to control the break-make of each solenoid valve.
  9. 9. single turbine is recovering energy according to claim 7 and R formulas vehicle shock absorber in parallel, it is characterised in that:Vehicle frame (1) Spring (2) is equipped between axle (7).
CN201820131629.3U 2018-01-26 2018-01-26 R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel Active CN208010840U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820131629.3U CN208010840U (en) 2018-01-26 2018-01-26 R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820131629.3U CN208010840U (en) 2018-01-26 2018-01-26 R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel

Publications (1)

Publication Number Publication Date
CN208010840U true CN208010840U (en) 2018-10-26

Family

ID=63883556

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820131629.3U Active CN208010840U (en) 2018-01-26 2018-01-26 R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel

Country Status (1)

Country Link
CN (1) CN208010840U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108458029A (en) * 2018-01-26 2018-08-28 华南理工大学 R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108458029A (en) * 2018-01-26 2018-08-28 华南理工大学 R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel and method

Similar Documents

Publication Publication Date Title
CN108194565A (en) The string series connection R formulas vehicle shock absorber and method that a kind of single turbine recovers energy
CN106678250B (en) A kind of and capillary variable system intrinsic frequency vehicle shock absorber operation method of connecting
CN103644248B (en) Controlled used appearance and the magnetorheological used case of damping and controlling method thereof
CN106763451B (en) A kind of damper of matrix and parallel capillary tube variable system intrinsic frequency
CN103423362B (en) The energy-saving vibration-reduction device that a kind of damping is adjustable
CN106678252B (en) A kind of series-parallel capillary variable system intrinsic frequency vehicle shock absorber operation method
CN106763437B (en) A kind of and parallel capillary tube variable system intrinsic frequency vehicle shock absorber operation method
CN208010840U (en) R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel
CN208010841U (en) A kind of string that single turbine recovers energy series connection R formula vehicle shock absorbers
CN208010839U (en) A kind of single turbine recovers energy and R formula vehicle shock absorbers of connecting
CN207999472U (en) A kind of connection in series-parallel R formula vehicle shock absorbers that single turbine recovers energy
CN207921213U (en) R formulas vehicle shock absorber that a kind of turbine recovers energy and in parallel
CN207921216U (en) A kind of string that turbine recovers energy series connection R formula vehicle shock absorbers
CN207921215U (en) A kind of connection in series-parallel R formula vehicle shock absorbers that turbine recovers energy
CN207921214U (en) A kind of R formulas vehicle shock absorber in parallel that turbine recovers energy
CN208295026U (en) A kind of R formula vehicle shock absorber in parallel that single turbine recovers energy
CN106763450B (en) A kind of damper of matrix and capillary variable system intrinsic frequency of connecting
CN108180244A (en) The string series connection R formulas vehicle shock absorber and method that a kind of turbine recovers energy
CN106678253B (en) A kind of damper of matrix string series connection capillary variable system intrinsic frequency
CN108386477A (en) A kind of R formulas vehicle shock absorber in parallel that turbine recovers energy and method
CN108180242A (en) The R formulas vehicle shock absorber in parallel and method that a kind of single turbine recovers energy
CN108458029A (en) R formulas vehicle shock absorber that a kind of single turbine recovers energy and in parallel and method
CN106594155B (en) A kind of string series connection capillary variable system intrinsic frequency vehicle shock absorber operation method
CN108386478A (en) A kind of series connection R formulas vehicle shock absorber that turbine recovers energy and method
CN108194562A (en) The connection in series-parallel R formulas vehicle shock absorber and method that a kind of single turbine recovers energy

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant