CN207048861U - A kind of turbocharger of the exhaust gas bypass system with linear reciprocation driving - Google Patents
A kind of turbocharger of the exhaust gas bypass system with linear reciprocation driving Download PDFInfo
- Publication number
- CN207048861U CN207048861U CN201720266547.5U CN201720266547U CN207048861U CN 207048861 U CN207048861 U CN 207048861U CN 201720266547 U CN201720266547 U CN 201720266547U CN 207048861 U CN207048861 U CN 207048861U
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- China
- Prior art keywords
- bonnet
- exhaust gas
- gas bypass
- drive shaft
- bypass system
- 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
- 230000000712 assembly Effects 0.000 claims abstract description 9
- 238000000429 assembly Methods 0.000 claims abstract description 9
- 238000010943 off-gassing Methods 0.000 claims abstract description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 21
- 239000002912 waste gas Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Supercharger (AREA)
Abstract
The utility model discloses a kind of turbocharger of the exhaust gas bypass system with linear reciprocation driving, including exhaust gas bypass system；Wherein exhaust gas bypass system includes by-pass prot, step through-hole, bushing, bonnet assemblies, and step through-hole is arranged to reverse position coaxial with by-pass prot, and being arranged on by-pass prot outgassing direction；Bushing is arranged to be arranged in step through-hole by interference fit, bonnet assemblies include bonnet, bonnet drive shaft and bonnet locating shim, the center of bonnet and the center of bonnet locating shim are provided with through hole, one end design two-stage boss that bonnet drive shaft is connected with bonnet, bonnet locating shim, inner side boss be set to bonnet carry out it is spacing, outside boss be set to bonnet locating shim carry out it is spacing.A kind of turbocharger arrangement of exhaust gas bypass system with linear reciprocation driving of the present utility model is simple, saves cost, deflating, control is more linear, and product competitiveness is higher.
Description
Technical field
It the utility model is related to automobile technical field, more particularly to a kind of exhaust gas bypass system with linear reciprocation driving
Turbocharger.
Background technology
With the more and more higher that countries in the world are required motor vehicle exhaust emission, drop oil consumption, settling-discharging turn into major vehicle factor
Currently the most important ones target.New-energy automobile, which is undoubtedly, drops oil consumption, settling-discharging most effective way, but is constrained to technology energy
Power, production cost and the acceptance level of customer, row of the coming years laws and regulations to each vehicle factor can not be met in the short time
Put requirement.Therefore it is still current most important means that technology upgrading is carried out on existing fuel engines, wherein, increased using turbine
Depressor reduces engine displacement, improve power, torque density be easiest to realize at present, effect it is most obvious, and cost is also can
Receive the method for scope, also therefore, the application of turbocharger on the engine is more and more common.
In order to improve customer satisfaction, the turbo lag of turbocharger is reduced, improves low speed torque and the acceleration of automobile
Performance, booster whirlpool end typically use the minor diameter turbine of low rotor inertia, but to ensure that turbocharger is high negative in engine
Trouble free service during lotus, it is necessary to the exhaust gas bypass outside booster ability to bear is fallen, avoids impeller from exceeding the speed limit.Therefore, existing market
Upper most of vehicle turbochargers on sale, especially petrol engine supercharger, all can Integrated design exhaust gas bypass on volute
Valve opening, and the ratio of exhaust gas bypass is controlled by controlling organization (electric actuator/pneumatic actuator) and executing agency's (pull bar)
Example；But no matter pneumatic actuator or electric actuator, are all to be moved by the link linear being connected with actuator at present, drive
The crank being connected with bonnet rocking arm inside volute being arranged on outside volute, crank drive bonnet rocking arm to turn by rotary motion
It is dynamic, so as to the opening angle of application valve cover.
In the prior art, the linear motion of pull bar is converted into the rotary motion of bonnet, passes through the big of bonnet rotational angle
Small to control waste gas discharge quantity, in this kind of design, pull bar movement travel and deflation area are not linear relationships, that is, are pressurized
The control of device discharge quantity is not linear enough, is embodied in actual condition, is exactly that moment of torsion occurs in waste gas valve small guide vane in engine
Fluctuation, demarcation are difficult；
In addition, in prior art, bonnet rocking arm both ends discontinuity, it is easily caused bonnet rocking arm and is produced not with bushing
Uniform wear, there is the increase of bushing air leakage in the later stage, bonnet rocking arm rotates the failure risks such as clamping stagnation.
Further, prior art bonnet rocking arm is in bushing rotary motion, crank-pin rotary motion in drawhead, two frictions
Frictional force caused by pair can increase the load of actuator.
Secondly, prior art production and assembly technology are complicated, and cost is higher：Bonnet rocking arm need to be welded with bushing
Connect, be also required to be welded between crank and crank-pin or riveted, bonnet rocking arm needs first to cast to be machined out again.
Therefore, those skilled in the art is directed to developing a kind of exhaust gas bypass system of linear reciprocation driving and turbine increases
Depressor, the linearity of booster exhaust gas bypass control is improved, and then reduce booster demarcation difficulty；The failure of bushing is reduced simultaneously
Risk, and reduce the load of actuator；The production of booster parts and assembly technology difficulty are reduced, saves cost, improves product
Competitiveness.
The content of the invention
In view of the drawbacks described above of prior art, technical problem to be solved in the utility model is that a kind of straight line of exploitation is past
The exhaust gas bypass system and turbocharger driven again, the linearity of booster exhaust gas bypass control is improved, and then reduce supercharging
Device demarcates difficulty；The failure risk of bushing is reduced simultaneously, and reduces the load of actuator；Reduce the production of booster parts and dress
With technology difficulty, cost is saved, improves product competitiveness.
To achieve the above object, the utility model provides a kind of whirlpool of the exhaust gas bypass system with linear reciprocation driving
Booster is taken turns, including turbine, intermediate bearing arrangement and compressor, turbine also include exhaust gas bypass system；Wherein waste gas
Bypass system includes by-pass prot, step through-hole, bushing, bonnet assemblies, and step through-hole is arranged to coaxial with by-pass prot, and is set
The reverse position in by-pass prot outgassing direction is put, the step through-hole should not destroy the premise of volute flow passage geometry in guarantee
Under, meet volute intensity requirement, wall thickness can be ensured by increasing the height of step at this；Bushing is arranged to pass through interference
Coordinate and be arranged in step through-hole, bonnet assemblies include bonnet, bonnet drive shaft and bonnet locating shim, the center of bonnet and valve
The center of lid locating shim is provided with through hole, one end design two-stage boss that bonnet drive shaft is connected with bonnet, bonnet locating shim,
Inner side boss be set to bonnet carry out it is spacing, outside boss is set to limit bonnet locating shim
Position；The aperture of the through hole of bonnet drive shaft and bonnet central is to being arranged to gap, between inner side boss and outside boss
Distance be set to larger than 0.2~0.4mm of thickness of bonnet, with ensure bonnet can with small range activity, with avoid bushing with
Deflation valve opening is because coaxiality error produces rigid contact, so as to ensure the sealing effectiveness of bonnet.
Further, the first end of bonnet drive shaft is arranged to screw thread, and is extended to through bushing outside volute,
The big footpath of screw thread is dimensioned to the bonnet drive shaft diameter of axle less than undressed screw thread, to ensure with bushing not interfere.
Further, the first end of bonnet drive shaft is arranged to be bolted to by two with one end of c-type set
Together, the other end of c-type set is arranged to the pull bar end of pneumatic actuator be connected by riveting.
Further, pneumatic actuator is arranged to be arranged on the actuator bracket being casting together with pressure shell, pneumatically
Actuator is arranged to reciprocal pneuamtic actuator, instead of the rotating open-close type waste gas valve actuator of in the market, to improve
The linearity of waste gas deflation control.
Further, pneumatic actuator be arranged to can use malleation driving pneumatic actuator, negative pressure driving it is pneumatic
Actuator, linear drives electric actuator in one kind, but can not use rotation driving electric actuator.
Further, the fastening bolt on the downside of the first end of bonnet drive shaft is arranged to adjust the position of fastening bolt
Adjust the pretightning force and Opening pressure of bonnet.
Further, bonnet drive shaft and two bolts of c-type set junction are arranged to regulating bolt to adjust bonnet
Opening pressure.
Further, bonnet drive shaft is enclosed on pull bar with the c-type after riveting and is axially equipped with 0.1~0.3mm gaps.
Further, the fastening bolt on the downside of the first end of bonnet drive shaft and the outerplanar distance of bushing, c-type set upside
The distance between plane and actuator bracket underside plan are set to larger than the maximum functional stroke of pneumatic actuator, to avoid
Interference is produced in motion process.
Further, gap of the aperture of the through hole of bonnet drive shaft and bonnet central between be arranged to 0.1~
0.3mm。
Technique effect
1st, the application uses linear reciprocating waste gas valve control mechanism, relative to existing rotating open-close type control machine
Structure, external crank being eliminated, while eliminate the welding procedure of crank and bonnet rocking arm, crank and crank-pin, structure is simpler,
Parts machining, assembly cost are lower, improve product competitiveness；
2nd, control of the application to exhaust gas bypass amount is more linear, and booster demarcation is simpler, demarcates improved efficiency, demarcates into
This reduction；
3rd, the application reduces relative to prior art and turned between bushing and bonnet rocking arm, drawhead and crank-pin
Dynamic friction pair, reduces friction loss, and the burden requirement to pneumatic actuator reduces, while reduces the abrasion to bushing, carries
The service life of bushing is risen.
Design, concrete structure and caused technique effect of the present utility model are made furtherly below with reference to accompanying drawing
It is bright, to be fully understood from the purpose of this utility model, feature and effect.
Brief description of the drawings
Fig. 1 is a kind of exhaust gas bypass system with linear reciprocation driving of a preferred embodiment of the present utility model
The assembly figure of turbocharger.
Fig. 2 is a kind of exhaust gas bypass system with linear reciprocation driving of a preferred embodiment of the present utility model
The assembly profile of turbocharger.
Fig. 3 is a kind of exhaust gas bypass system with linear reciprocation driving of a preferred embodiment of the present utility model
The bushing partial enlarged drawing of turbocharger.
Fig. 4 is a kind of exhaust gas bypass system with linear reciprocation driving of a preferred embodiment of the present utility model
The bonnet assemblies enlarged drawing of turbocharger.
Fig. 5 is a kind of exhaust gas bypass system with linear reciprocation driving of a preferred embodiment of the present utility model
The c-type set partial enlarged drawing of turbocharger.
Fig. 6 is a kind of exhaust gas bypass system with linear reciprocation driving of a preferred embodiment of the present utility model
The bonnet drive shaft two-stage boss enlarged drawing of turbocharger.
Embodiment
As shown in figure 1, a preferred embodiment of the present utility model is provided by a kind of waste gas with linear reciprocation driving
The turbocharger of way system, turbocharger include absorb high-temp waste gas energy turbine 100 (including turbine, volute and
Runner and subsidiary body), transmit the intermediate bearing arrangement 200 (including rotating shaft, bearing and cooling and lubricating bindiny mechanism) of energy
With the compressor 300 (including pinch roller, pressure shell runner and subsidiary body) of compression fresh air.
As shown in Fig. 2 section assembly figure, the utility model will describe in detail from tri- profiles of A, B, C.
A kind of as shown in figure 3, exhaust gas bypass with linear reciprocation driving in a preferred embodiment of the present utility model
The turbocharger of system is provided with a step through-hole 108 coaxial with by-pass prot, step at the back side in volute exhaust gas bypass hole
Through hole 108 meets volute intensity requirement, by increasing step at this on the premise of ensureing not destroying volute flow passage geometry
Height ensure wall thickness；Bushing 104 is arranged in step through-hole 108 by interference fit, passes through control and bonnet drive shaft
Gap between 107, to control the air leakage at this, while by the selection of material, to ensure that bonnet drives in life cycle
Axle 107 is to the wear extent of bushing 104 in tolerance interval；
As shown in figure 4, bonnet assemblies are made up of bonnet 103, bonnet drive shaft 107, bonnet locating shim 106, bonnet
103rd, the center of bonnet locating shim 106 is provided with through hole, and bonnet drive shaft 107 is connected with bonnet 103, bonnet locating shim 106
One end design two-stage boss 109 (as shown in Figure 6), wherein, inner side boss is for carrying out spacing, outside boss to bonnet 103
It is spacing for being carried out to bonnet locating shim 106；Bonnet drive shaft 107 is radially provided with 0.1~0.3mm with the centre bore of bonnet 103
Gap, while the distance between two-stage boss is set greater than the 0.2~0.4mm of thickness of bonnet 103, to ensure that bonnet 103 can
With small range activity, to avoid bushing 104 with deflation valve opening because coaxiality error produces rigid contact, so as to ensure bonnet 103
Sealing effectiveness；The first end of bonnet drive shaft 107 is designed with screw thread, and is extended to through bushing 104 outside volute, screw thread it is big
Footpath size is less than the bonnet drive shaft diameter of axle of undressed screw thread, to ensure with bushing not interfere；Wherein, bonnet drive shaft 107
Together with first end is bolted to c-type set 304 by two, the other end of c-type set 304 passes through riveting and pneumatic actuator
301 end of pull bar 302 links together, as shown in figure 5, c-type set 304 will leave 0.1~0.3mm's with the riveting of pull bar 302
Axial surplus, to avoid actuator pull bar 302 and the coaxial error of bonnet drive shaft 107 from producing rigid bending power, improve c-type set
304 service life, while reduce the abrasion between bonnet drive shaft 107 and bushing 104.
Fastening bolt and 104 outerplanar distance of bushing, the upside of c-type set 304 on the downside of the end of thread of bonnet drive shaft 107 is flat
The distance between face and the underside plan of actuator bracket 301 (vacuum cavitations, malleation no requirement (NR)) are greater than the maximum work of actuator
Make stroke, to avoid producing interference in motion process；Can be by adjusting the fastening bolt of bonnet drive shaft 107 end of thread
Position, to adjust the pretightning force of bonnet assemblies and Opening pressure, flexibility is identical with market existing design scheme；Deflated in design
During the diameter of valve opening, the deflation area that bonnet drive shaft takes is considered；Can be by adjusting bonnet drive shaft 107 and c-type set
The position of 304 two bolts in junction, to adjust the Opening pressure of bonnet, so as to improve the uniformity of the product of batch production.
As shown in figure 1, pneumatic actuator 301 is arranged on the actuator bracket 305 being casting together with pressure shell, pneumatically hold
Row device 301 can use malleation to drive, and negative pressure can also be used to drive, and the actuator can also use the automatically controlled execution of linear drives
Device, but the electric actuator of rotation driving can not be used；The utility model uses linear reciprocating waste gas valve actuator, comes
Instead of the rotating open-close type waste gas valve actuator of in the market, the linearity controlled with improving waste gas to deflate.
The application uses linear reciprocating waste gas valve control mechanism, relative to existing rotating open-close type controlling organization,
External crank is eliminated, while eliminates the welding procedure of crank and bonnet rocking arm, crank and crank-pin, structure is simpler, and zero
Component processing, assembly cost are lower, improve product competitiveness；Control of the application to exhaust gas bypass amount is more linear, booster
Demarcation is simpler, demarcates improved efficiency, and calibration cost reduces；The application reduces bushing and bonnet relative to prior art
Pivoting friction pair between rocking arm, drawhead and crank-pin, reduces friction loss, the burden requirement drop to pneumatic actuator
It is low, while reduce the abrasion to bushing, improve the service life of bushing.
Preferred embodiment of the present utility model described in detail above.It should be appreciated that the ordinary skill people of this area
Member makes many modifications and variations without creative work can according to design of the present utility model.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model in domain
Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of turbocharger of the exhaust gas bypass system with linear reciprocation driving, including turbine, intermediate bearing system
System and compressor, it is characterised in that the turbine includes exhaust gas bypass system；Wherein described exhaust gas bypass system includes bypass
Hole, step through-hole, bushing, bonnet assemblies, the step through-hole are arranged to coaxial with the by-pass prot, and are arranged on described
The reverse position of by-pass prot outgassing direction, the bushing are arranged to be arranged in the step through-hole by interference fit, institute
Stating bonnet assemblies includes bonnet, bonnet drive shaft and bonnet locating shim, the center of the bonnet and the bonnet locating shim
Center be provided with through hole, one end that the bonnet drive shaft is connected with the bonnet, bonnet locating shim design two-stage is convex
Platform, inner side boss be set to the bonnet carry out it is spacing, outside boss is set to bonnet locating shim
Carry out spacing；The aperture of the through hole of the bonnet drive shaft and the bonnet central is described to being arranged to gap
The distance between inner side boss and the outside boss are set to larger than 0.2~0.4mm of thickness of the bonnet.
2. a kind of turbocharger of exhaust gas bypass system with linear reciprocation driving as claimed in claim 1, its feature
It is, the first end of the bonnet drive shaft is arranged to screw thread, and is extended to through the bushing outside volute, described
The big footpath of screw thread is dimensioned to the bonnet drive shaft diameter of axle less than undressed screw thread.
3. a kind of turbocharger of exhaust gas bypass system with linear reciprocation driving as claimed in claim 2, its feature
It is, it is described together with the first end of the bonnet drive shaft is arranged to be bolted to by two with one end of c-type set
The other end of c-type set is arranged to the pull bar end of pneumatic actuator be connected by riveting.
4. a kind of turbocharger of exhaust gas bypass system with linear reciprocation driving as claimed in claim 3, its feature
It is, the pneumatic actuator is arranged to be arranged on the actuator bracket being casting together with pressure shell, the pneumatic execution
Device is arranged to reciprocal pneuamtic actuator.
5. a kind of turbocharger of exhaust gas bypass system with linear reciprocation driving as claimed in claim 4, its feature
It is, the pneumatic actuator is arranged to the pneumatic actuator using malleation driving, pneumatic actuator, the straight line of negative pressure driving
One kind in the electric actuator of driving.
6. a kind of turbocharger of exhaust gas bypass system with linear reciprocation driving as claimed in claim 3, its feature
It is, the fastening bolt on the downside of the first end of the bonnet drive shaft is arranged to adjust the position of the fastening bolt to adjust
The pretightning force and Opening pressure of the bonnet.
7. a kind of turbocharger of exhaust gas bypass system with linear reciprocation driving as claimed in claim 3, its feature
It is, two bolts of the bonnet drive shaft and the c-type set junction are arranged to adjust the bolt described to adjust
The Opening pressure of bonnet.
8. a kind of turbocharger of exhaust gas bypass system with linear reciprocation driving as claimed in claim 3, its feature
It is, the bonnet drive shaft is enclosed on pull bar with the c-type after riveting and is axially equipped with 0.1~0.3mm gaps.
9. a kind of turbocharger of exhaust gas bypass system with linear reciprocation driving as claimed in claim 3, its feature
It is, the fastening bolt on the downside of the first end of the bonnet drive shaft and the outerplanar distance of the bushing, c-type set upside
The distance between plane and the actuator bracket underside plan are set to larger than the maximum functional row of the pneumatic actuator
Journey.
10. a kind of turbocharger of exhaust gas bypass system with linear reciprocation driving as claimed in claim 3, its feature
It is, the gap of the aperture of the through hole of the bonnet drive shaft and the bonnet central between is arranged to 0.1~
0.3mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720266547.5U CN207048861U (en) | 2017-03-17 | 2017-03-17 | A kind of turbocharger of the exhaust gas bypass system with linear reciprocation driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720266547.5U CN207048861U (en) | 2017-03-17 | 2017-03-17 | A kind of turbocharger of the exhaust gas bypass system with linear reciprocation driving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207048861U true CN207048861U (en) | 2018-02-27 |
Family
ID=61489643
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720266547.5U Expired - Fee Related CN207048861U (en) | 2017-03-17 | 2017-03-17 | A kind of turbocharger of the exhaust gas bypass system with linear reciprocation driving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207048861U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677893A (en) * | 2017-03-17 | 2017-05-17 | 奕森科技（上海）有限公司 | Turbocharger with linear reciprocating drive exhaust bypass system |
| CN113565623A (en) * | 2021-06-30 | 2021-10-29 | 东风汽车集团股份有限公司 | Executor coupling mechanism, bypass booster and vehicle |
-
2017
- 2017-03-17 CN CN201720266547.5U patent/CN207048861U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677893A (en) * | 2017-03-17 | 2017-05-17 | 奕森科技（上海）有限公司 | Turbocharger with linear reciprocating drive exhaust bypass system |
| CN106677893B (en) * | 2017-03-17 | 2022-08-26 | 奕森科技(江苏)有限公司 | Turbocharger with linear reciprocating driven exhaust gas bypass system |
| CN113565623A (en) * | 2021-06-30 | 2021-10-29 | 东风汽车集团股份有限公司 | Executor coupling mechanism, bypass booster and vehicle |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180227 |