CN203463546U - Pump type energy-feedback active vibration reduction system - Google Patents
Pump type energy-feedback active vibration reduction system Download PDFInfo
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- CN203463546U CN203463546U CN201320593924.8U CN201320593924U CN203463546U CN 203463546 U CN203463546 U CN 203463546U CN 201320593924 U CN201320593924 U CN 201320593924U CN 203463546 U CN203463546 U CN 203463546U
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Abstract
The utility model discloses a pump type energy-feedback active vibration reduction system which comprises a pump type energy-feedback absorber, a one-way valve system, a hydraulic motor, an energy accumulator, an electric generator, a storage battery and a controller. A one-way piston valve is arranged on a piston of the pump type energy-feedback absorber, a one-way valve A and a one-way valve B in the one-way valve system are mounted on an oil outlet and an oil inlet of the pump type energy-feedback absorber respectively, the oil inlet of the hydraulic motor is connected to the one-way valve A through an oil pipe A, a one-way valve C is arranged on the oil outlet of the hydraulic motor, the one-way valve C is connected to the one-way valve B through an oil pipe B, the energy accumulator is communicated with the oil pipe B through an oil pipe C, the rotating shaft of the hydraulic motor is connected with the electric generator, and the electric generator is connected with the storage battery and the controller respectively through electric wires and control lines. According to the pump type energy-feedback active vibration reduction system, vibration energy can be recovered, damping active control can be carried out, and the pump type energy-feedback active vibration reduction system is simple in structure, high in reliability, and capable of being applied to vehicles, bridges, buildings and other occasions.
Description
Technical field
The utility model belongs to antivibration area, is specifically related to a kind of can recovery vibrational energy, and can carry out the pump formula energy regenerative Active vibration-reducing system of damping ACTIVE CONTROL.
Background technique
Vibration insulating system is widely used in the places such as vehicle suspension system, railroad track, machinery and bridge construction, existing main vibration reducing measure comprises frcition damper, mild steel damper, rubber cushion assembly, viscoelastic damper etc., and majority is vibrational energy to be converted into thermal energy consumption dissipate.
Take ride-control as example, widely usedly on automobile at present remain passive hydraulic type vibration damper, its damping constant is non-adjustable, can not change with outside pavement behavior, during design, can only guarantee to be issued to good vibration absorption energy in certain given travel operating mode, and be difficult to adapt to different condition of road surface, thereby damping property is limited.Adopt active damper can realize at different driving conditions lower suspension best performances, significantly improve run smoothness and the control stability of vehicle, but because active damper need to consume a large amount of energy, suppress the impact that uneven road surface causes, so user cost is higher.
Meanwhile, the vibration damper during tradition hangs dissipates vibrational energy with the form of heat, thus the vibration of decay vehicle.And the energy being dissipated is the important component part of energy consumption of vehicles, is not just taken seriously always and utilizes.Current energy-conservation be one of problem that in Automobile Design, emphasis is considered, solve Active suspension high energy consumption problem imperative, and energy feedback is an important means that lowers energy consumption and reduce user cost.
Therefore, initiatively energy regenerative suspension arises at the historic moment, and its target is exactly to reclaim the vibrational energy being caused by uneven road surface excitation, is provided with the use of active damping.Especially for commercial car, off-road vehicle etc., the road conditions of travelling are severe, and suspension system vibration is violent, and vehicle mass is large in addition, and it is larger that energy reclaims potentiality.For hybrid vehicle and electric vehicle, owing to thering is the storage battery of amplifying, be also the main application of active energy regenerative suspension.
Current active energy regenerative suspension is mainly two kinds of electromagnetic type and electrohydraulic types, and the bearing capacity of wherein studying more electromagnetic type energy regenerative suspension is lower, is mainly used in less, the good passenger car of road condition of deadweight, and it is limited that energy reclaims potentiality; In addition, the static load problem in electromagnetic type energy regenerative suspension is never solved well.Therefore, for deadweights such as heavy-duty commercial vehicle, mine car, military vehicle, engineering trucks, the large and poor vehicle of road condition carries out the research of energy regenerative suspension, is more of practical significance.Now, the electrohydraulic type energy regenerative suspension that bearing capacity is large, structural reliability is high has more advantage.
Chinese patent CN101929520A discloses a kind of electrohydraulic energy-regenerative type shock absorber, it comprises oil hydraulic cylinder, oil hydraulic circuit, oil hydraulic motor, generator, accumulator etc., oil hydraulic circuit and a plurality of one-way valve form hydraulic pressure rectifier bridge, and oil hydraulic circuit adopts at piston and arranges external pipeline outward or hydraulic cylinder piston is designed to the form of interior exocoel.The energy that automobile vibration can be produced, for acting, reclaims vibrational energy.But its oil hydraulic circuit is complicated, system reliability is reduced, and energy regenerative efficiency is restricted.
Summary of the invention
The utility model provides a kind of and can reclaim vibrational energy, and can carry out the pump formula energy regenerative Active vibration-reducing system of damping ACTIVE CONTROL, it is simple in structure, reliability is high, can be used for a plurality of places such as vehicle, bridge construction, during for vehicle, can, when improving VE Vehicle Economy, improve vehicle handling stability and riding comfort.
For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of pump formula energy regenerative Active vibration-reducing system, comprise pump formula power feeding shock absorber 1, one-way valve is 2, oil hydraulic motor 4, accumulator 5, generator 6, storage battery 7 and controller 8, wherein the piston 16 of pump formula power feeding shock absorber 1 is provided with unidirectional piston valve 15, one-way valve is oil outlet and the filler opening place that one-way valve A21 in 2 and one-way valve B22 are installed on respectively pump formula power feeding shock absorber 1, the filler opening of oil hydraulic motor 4 is connected with one-way valve A21 by oil pipe A31, oil outlet is provided with one-way valve C23, one-way valve C23 is connected with one-way valve B22 by oil pipe B32, accumulator 5 is connected with oil pipe B32 by oil pipe C33, the rotating shaft of oil hydraulic motor 4 is connected with generator 6, generator 6 is connected with controller 8 with storage battery 7 with guide line by electric wire respectively.
Alternatively, described pump formula power feeding shock absorber 1 adopts monotubular structure, be similar to single rod double-acting hydraulic cylinder, comprise and be connected upper rings 11 with vehicle frame, with the piston rod 12 that upper rings 11 is connected, the piston 16 being connected by set screw nut 17 and piston rod 12, piston 16 extend in cylinder assembly 14, be divided into rod chamber 13 and rodless cavity 18, cylinder assembly 14 lower ends are fixed with lower lift ring 19, and lower lift ring 19 is connected with vehicle wheel component; Described rodless cavity 18 and rod chamber 13 have filler opening and oil outlet, and are connected with one-way valve A21 with one-way valve B22 respectively;
Alternatively, described pump formula power feeding shock absorber 1 adopts double-barrel structure, be similar to dual-tube shock absorber structure, comprise upper rings 11, the piston rod 12 being connected with upper rings 11, the piston 16 being connected by set screw nut 17 and piston rod 12, the cylinder assembly 14 that comprises inner cylinder tube 141 and be sleeved on its outside outer cylinder 142, piston rod 12 and piston 16 stretch in inner cylinder tube 141, piston 16 is provided with unidirectional piston valve 15, inner cylinder tube 141 bottoms and top are respectively equipped with one-way valve E221 and one-way valve D211, outer cylinder 142 is provided with air chamber 51 with the upper semisection that inner cylinder tube 141 forms space, outer cylinder bottom is provided with one-way valve F231, further, one-way valve D211 and one-way valve F231 are respectively by oil pipe A31, oil pipe D321 is connected with oil outlet with the filler opening of oil hydraulic motor 4.
Described oil hydraulic motor 4 and generator 6 are reversible construction, can be used as oil hydraulic pump and motor and use, and also when oil hydraulic motor 4 filler openings flow into high-voltage oil liquid, its rotating shaft will be rotated, and then drive generator 6 generates electricity; When 7 pairs of generators 6 of controller 8 control storage batteries are powered, generator 6 drives oil hydraulic motor 4 rotations as motor, and then the fluid of the oil hydraulic motor 4 of flowing through is produced to drag effect;
In described cylinder assembly 14 and each oil pipe, be full of fluid, being pressed in advance between 1-5MPa in accumulator 5;
Alternatively, oil hydraulic motor 4 can adopt crescent gear motor, gear on gear motor and piston motor etc.
Preferably, oil hydraulic motor 4 is integrated parts with generator 6, uses same running shaft, and common housing.
During when vehicle process uneven road surface or at turning and braking process, will make wheel produce to-and-fro motion with respect to vehicle frame, and then cause piston rod 12 and piston 16 to move up and down with respect to cylinder assembly 14;
When piston 16 moves upward, piston valve 15 cuts out, and one-way valve A21 opens, and the fluid in rod chamber 13 flow through one-way valve A21 and oil pipe A31, enter oil hydraulic motor 4, and the rotating shaft of oil hydraulic motor 4 rotarily drives generator 6 generatings, and is stored in storage battery 7; Simultaneously, oil hydraulic motor 4 oil outlet fluid enter rodless cavity 18 by one-way valve C23 oil pipe B32 and one-way valve B22, and due to the extraction of piston rod 12, the fluid that rod chamber 13 flows out is not enough to be full of rodless cavity 18, now, accumulator 5 by release fluid to be full of rodless cavity 18;
When piston 16 moves downward, one-way valve B22 closes, and piston valve 15 is opened, fluid in rodless cavity 18 enters rod chamber 13 by piston valve 15, and because piston rod 12 occupies certain volume, part fluid will continue to push open one-way valve A21, and then drive oil hydraulic motor 4 rotations, and then generating; Due to one-way valve, B22 closes, and the oil outlet fluid of oil hydraulic motor 4 will enter accumulator 5;
As can be seen here, no matter piston 16 upwards still moves downward, and fluid is clockwise and flows, and the sense of rotation of oil hydraulic motor 4 and generator 6 is remained unchanged, and then improved generating efficiency and the working life of native system.
Cracking pressure that it should be noted that piston valve 15 in the utility model and each one-way valve is all very little, and each tubing diameter is also enough large, on-way resistance is dropped to minimum; And the required drag effect overwhelming majority of vibration damper produces at oil hydraulic motor 4 places, by controller 8, control the external different load of generator 6, realize the counterelectromotive force that generator 6 produces different sizes, and then make the fluid that 4 pairs of oil hydraulic motors are flowed through produce different big or small resistances, obtain desirable resistance of shock absorber characteristic.
The beneficial effects of the utility model are:
(1) by pump formula power feeding shock absorber cleverly, design, realize fluid one-way flow, simple in structure, reliability is high, and reduced on-way resistance, make energy regenerative generating efficiency higher, can be used for a plurality of places such as vehicle suspension system, railroad track, machinery and bridge construction;
(2) two kinds of pump formula power feeding shock absorber design proposals can obtain by existing single rod double-acting hydraulic cylinder or dual-tube shock absorber transformation respectively, make whole system cost;
(3), by ACTIVE CONTROL, when vibrational energy recovery, improving fuel economy, improve control stability and the riding comfort of vehicle.
Accompanying drawing explanation
Fig. 1 is an embodiment of the present utility model;
Fig. 2 is another embodiment of the present utility model.
In figure:
1, pump formula power feeding shock absorber; 11, upper rings; 12, piston rod; 13, rod chamber; 14, cylinder assembly;
141, inner cylinder tube; 142, outer cylinder; 15, piston valve; 16, piston;
17, set screw nut; 18, rodless cavity; 19, lower lift ring;
2, one-way valve system; 21, one-way valve A; 22, one-way valve B; 23, one-way valve C; 211, one-way valve D;
221, one-way valve E; 231, one-way valve F; 31, oil pipe A; 32, oil pipe B; 33, oil pipe C; 321, oil pipe D;
4, oil hydraulic motor; 5, accumulator; 51, air chamber; 6, generator; 7, storage battery; 8, controller.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
Fig. 1 is an embodiment of the present utility model, visible a kind of pump formula energy regenerative Active vibration-reducing system, comprise pump formula power feeding shock absorber 1, one-way valve is 2, oil hydraulic motor 4, accumulator 5, generator 6, storage battery 7 and controller 8, wherein the piston 16 of pump formula power feeding shock absorber 1 is provided with unidirectional piston valve 15, one-way valve is oil outlet and the filler opening place that one-way valve A21 in 2 and one-way valve B22 are installed on respectively pump formula power feeding shock absorber 1, the filler opening of oil hydraulic motor 4 is connected with one-way valve A21 by oil pipe A31, oil outlet is provided with one-way valve C23, one-way valve C23 is connected with one-way valve B22 by oil pipe B32, accumulator 5 is connected with oil pipe B32 by oil pipe C33, the rotating shaft of oil hydraulic motor 4 is connected with generator 6, generator 6 is connected with controller 8 with storage battery 7 with guide line by electric wire respectively.
Described pump formula power feeding shock absorber 1 adopts monotubular structure, be similar to single rod double-acting hydraulic cylinder, comprise and be connected upper rings 11 with vehicle frame, the piston rod 12 being connected with upper rings 11, the piston 16 being connected by set screw nut 17 and piston rod 12, piston 16 extend in cylinder assembly 14, is divided into rod chamber 13 and rodless cavity 18, cylinder assembly 14 lower ends are fixed with lower lift ring 19, and lower lift ring 19 is connected with vehicle wheel component; Described rodless cavity 18 and rod chamber 13 have filler opening and oil outlet, and are connected with one-way valve A21 with one-way valve B22 respectively;
Alternatively, as shown in Figure 2, described pump formula power feeding shock absorber 1 adopts double-barrel structure, be similar to dual-tube shock absorber structure, comprise upper rings 11, the piston rod 12 being connected with upper rings 11, the piston 16 being connected by set screw nut 17 and piston rod 12, the cylinder assembly 14 that comprises inner cylinder tube 141 and be sleeved on its outside outer cylinder 142, piston rod 12 and piston 16 stretch in inner cylinder tube 141, piston 16 is provided with unidirectional piston valve 15, inner cylinder tube 141 bottoms and top are respectively equipped with one-way valve E221 and one-way valve D211, outer cylinder 142 is provided with air chamber 51 with the upper semisection that inner cylinder tube 141 forms space, outer cylinder bottom is provided with one-way valve F231, further, one-way valve D211 and one-way valve F231 are respectively by oil pipe A31, oil pipe D321 is connected with oil outlet with the filler opening of oil hydraulic motor 4.
Described oil hydraulic motor 4 and generator 6 are reversible construction, can be used as oil hydraulic pump and motor and use, and also when oil hydraulic motor 4 filler openings flow into high-voltage oil liquid, its rotating shaft will be rotated, and then drive generator 6 generates electricity; When 7 pairs of generators 6 of controller 8 control storage batteries are powered, generator 6 drives oil hydraulic motor 4 rotations as motor, and then the fluid of the oil hydraulic motor 4 of flowing through is produced to drag effect;
In described cylinder assembly 14 and each oil pipe, be full of fluid, being pressed in advance between 1-5MPa in accumulator 5;
Alternatively, oil hydraulic motor 4 can adopt crescent gear motor, gear on gear motor and piston motor etc.
Preferably, oil hydraulic motor 4 is integrated parts with generator 6, uses same running shaft, and common housing.
During when vehicle process uneven road surface or at turning and braking process, will make wheel produce to-and-fro motion with respect to vehicle frame, and then cause piston rod 12 and piston 16 to move up and down with respect to cylinder assembly 14;
When piston 16 moves upward, piston valve 15 cuts out, and one-way valve A21 opens, and the fluid in rod chamber 13 flow through one-way valve A21 and oil pipe A31, enter oil hydraulic motor 4, and the rotating shaft of oil hydraulic motor 4 rotarily drives generator 6 generatings, and is stored in storage battery 7; Simultaneously, oil hydraulic motor 4 oil outlet fluid enter rodless cavity 18 by one-way valve C23 oil pipe B32 and one-way valve B22, and due to the extraction of piston rod 12, the fluid that rod chamber 13 flows out is not enough to be full of rodless cavity 18, now, accumulator 5 by release fluid to be full of rodless cavity 18;
When piston 16 moves downward, one-way valve B22 closes, and piston valve 15 is opened, fluid in rodless cavity 18 enters rod chamber 13 by piston valve 15, and because piston rod 12 occupies certain volume, part fluid will continue to push open one-way valve A21, and then drive oil hydraulic motor 4 rotations, and then generating; Due to one-way valve, B22 closes, and the oil outlet fluid of oil hydraulic motor 4 will enter accumulator 5;
As can be seen here, no matter piston 16 upwards still moves downward, and fluid is clockwise and flows, and the sense of rotation of oil hydraulic motor 4 and generator 6 is remained unchanged, and then improved generating efficiency and the working life of native system.
Cracking pressure that it should be noted that piston valve 15 in the utility model and each one-way valve is all very little, for example, can be less than 0.05MPa, and each tubing diameter is also enough large, can be greater than 10mm, on-way resistance is dropped to minimum; And the required drag effect overwhelming majority of vibration damper produces at oil hydraulic motor 4 places, by controller 8, control the external different load of generator 6, realize the counterelectromotive force that generator 6 produces different sizes, and then make the fluid that 4 pairs of oil hydraulic motors are flowed through produce different big or small resistances, obtain desirable resistance of shock absorber characteristic.
Above-described embodiment is only for illustrating the utility model; wherein the structure of each parts, Placement etc. all can change to some extent; every equivalents of carrying out on the basis of technical solutions of the utility model and improvement, all should not get rid of outside protection domain of the present utility model.
Claims (9)
1. a pump formula energy regenerative Active vibration-reducing system, comprise pump formula power feeding shock absorber (1), one-way valve system (2), oil hydraulic motor (4), accumulator (5), generator (6), storage battery (7) and controller (8), it is characterized in that:
The piston (16) of described pump formula power feeding shock absorber (1) is provided with unidirectional piston valve (15), oil outlet and filler opening place that one-way valve A (21) in one-way valve system (2) and one-way valve B (22) are installed on respectively pump formula power feeding shock absorber (1), the filler opening of oil hydraulic motor (4) is connected with one-way valve A (21) by oil pipe A (31), oil outlet is provided with one-way valve C (23), one-way valve C (23) is connected with one-way valve B (22) by oil pipe B (32), and accumulator (5) is connected with oil pipe B (32) by oil pipe C (33);
The rotating shaft of described oil hydraulic motor (4) is connected with generator (6), and generator (6) is connected with controller (8) with storage battery (7) with guide line by electric wire respectively.
2. a kind of pump formula energy regenerative Active vibration-reducing system according to claim 1, is characterized in that:
Described pump formula power feeding shock absorber (1) adopts monotubular structure, be similar to single rod double-acting hydraulic cylinder, comprise the upper rings (11) being connected with vehicle frame, the piston rod (12) being connected with upper rings (11), the piston (16) being connected by set screw nut (17) and piston rod (12), piston (16) extend in cylinder assembly (14), be divided into rod chamber (13) and rodless cavity (18), cylinder assembly (14) lower end is fixed with lower lift ring (19), and lower lift ring (19) is connected with vehicle wheel component; Described rodless cavity (18) and rod chamber (13) have filler opening and oil outlet, and are connected with one-way valve A (21) with one-way valve B (22) respectively.
3. a kind of pump formula energy regenerative Active vibration-reducing system according to claim 1, is characterized in that:
Described pump formula power feeding shock absorber (1) adopts double-barrel structure, be similar to dual-tube shock absorber structure, comprise upper rings (11), the piston rod (12) being connected with upper rings (11), the piston (16) being connected by set screw nut (17) and piston rod (12), the cylinder assembly (14) that comprises inner cylinder tube (141) and be sleeved on its outside outer cylinder (142), piston rod (12) and piston (16) stretch in inner cylinder tube (141), piston (16) is provided with unidirectional piston valve (15), inner cylinder tube (141) bottom and top are respectively equipped with one-way valve E (221) and one-way valve D (211), outer cylinder (142) is provided with air chamber (51) with the upper semisection that inner cylinder tube (141) forms space, outer cylinder bottom is provided with one-way valve F (231), further, one-way valve D (211) and one-way valve F (231) are respectively by oil pipe A (31), oil pipe D (321) is connected with oil outlet with the filler opening of oil hydraulic motor (4).
4. a kind of pump formula energy regenerative Active vibration-reducing system according to claim 1, is characterized in that:
Described oil hydraulic motor (4) and generator (6) are reversible construction, i.e. oil hydraulic motor (4) or as oil hydraulic pump, generator (6) or as motor.
5. a kind of pump formula energy regenerative Active vibration-reducing system according to claim 2, is characterized in that:
In described cylinder assembly (14) and each oil pipe, be full of fluid, being pressed between 1-5MPa in advance in accumulator (5).
6. a kind of pump formula energy regenerative Active vibration-reducing system according to claim 1, is characterized in that:
Described oil hydraulic motor (4) adopts crescent gear motor, gear on gear motor or piston motor.
7. a kind of pump formula energy regenerative Active vibration-reducing system according to claim 1, is characterized in that:
Described oil hydraulic motor (4) is integrated parts with generator (6), uses same running shaft, and common housing.
8. a kind of pump formula energy regenerative Active vibration-reducing system according to claim 2, is characterized in that:
When described piston (16) moves upward, piston valve (15) cuts out, one-way valve A (21) opens, fluid in rod chamber (13) flow through one-way valve A (21) and oil pipe A (31), enter oil hydraulic motor (4), the rotating shaft of oil hydraulic motor (4) rotarily drives generator (6) generating, and is stored in storage battery (7); Meanwhile, oil hydraulic motor (4) oil outlet fluid enters rodless cavity (18) by one-way valve C (23) oil pipe B (32) and one-way valve B (22), and accumulator (5) discharges fluid to be full of rodless cavity (18) simultaneously;
When piston (16) moves downward, one-way valve B (22) closes, piston valve (15) is opened, fluid in rodless cavity (18) enters rod chamber (13) by piston valve (15), part fluid continues to push open one-way valve A (21), drives oil hydraulic motor (4) rotary electrification; One-way valve B (22) closes, and the oil outlet fluid of oil hydraulic motor (4) will enter accumulator (5).
9. a kind of pump formula energy regenerative Active vibration-reducing system according to claim 1, is characterized in that:
The cracking pressure of described piston valve (15) and each one-way valve is all very little, and each tubing diameter is also enough large, by controller (8), control the external different load of generator (6), generator (6) produces the counterelectromotive force of different sizes, makes oil hydraulic motor (4) to the fluid of flowing through, produce the resistance of different sizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593924.8U CN203463546U (en) | 2013-09-24 | 2013-09-24 | Pump type energy-feedback active vibration reduction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320593924.8U CN203463546U (en) | 2013-09-24 | 2013-09-24 | Pump type energy-feedback active vibration reduction system |
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| Publication Number | Publication Date |
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| CN203463546U true CN203463546U (en) | 2014-03-05 |
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| CN201320593924.8U Expired - Lifetime CN203463546U (en) | 2013-09-24 | 2013-09-24 | Pump type energy-feedback active vibration reduction system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343878A (en) * | 2014-09-30 | 2015-02-11 | 重庆工商大学 | System and method for controlling vibration energy |
| CN106744634A (en) * | 2016-11-29 | 2017-05-31 | 大庆市汇通建筑安装工程有限公司 | Reclaiming device for ground raw oil in oil field |
-
2013
- 2013-09-24 CN CN201320593924.8U patent/CN203463546U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343878A (en) * | 2014-09-30 | 2015-02-11 | 重庆工商大学 | System and method for controlling vibration energy |
| CN106744634A (en) * | 2016-11-29 | 2017-05-31 | 大庆市汇通建筑安装工程有限公司 | Reclaiming device for ground raw oil in oil field |
| CN106744634B (en) * | 2016-11-29 | 2019-11-08 | 大庆市汇通建筑安装工程有限公司 | Reclaiming device for ground raw oil in oil field |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGCHUN KONGHUI AUTOMATIVE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: KH AUTOMOTIVE TECHNOLOGIES (CHANGCHUN) CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 130012 Jilin province Changchun Chaoda high tech Industrial Development Zone, Road No. 5177 Patentee after: KH AUTOMOTIVE TECHNOLOGIES (CHANGCHUN) CO.,LTD. Address before: 130012 Jilin province Changchun Chaoda high tech Industrial Development Zone, Road No. 5177 Patentee before: KH AUTOMOTIVE TECHNOLOGIES (CHANGCHUN) Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191024 Address after: 313000 No. 18-102 Industrial Road, South Taihu High-tech Industrial Park, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Zhejiang Kong Hui Automobile Technology Co.,Ltd. Address before: 130012 Jilin province Changchun Chaoda high tech Industrial Development Zone, Road No. 5177 Patentee before: KH AUTOMOTIVE TECHNOLOGIES (CHANGCHUN) CO.,LTD. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140305 |