CN201650502U - Automobile gas fuel electronic-controlled injection electromagnetic valve - Google Patents
Automobile gas fuel electronic-controlled injection electromagnetic valve Download PDFInfo
- Publication number
- CN201650502U CN201650502U CN2009202611220U CN200920261122U CN201650502U CN 201650502 U CN201650502 U CN 201650502U CN 2009202611220 U CN2009202611220 U CN 2009202611220U CN 200920261122 U CN200920261122 U CN 200920261122U CN 201650502 U CN201650502 U CN 201650502U
- Authority
- CN
- China
- Prior art keywords
- valve
- circle
- sleeve
- valve body
- spool
- 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
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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The utility model discloses an automobile gas fuel electronic-controlled injection electromagnetic valve which is characterized by comprising a valve jacket, a coil, an insulating sleeve, a valve cover, a power socket, a valve body, a valve seat, a valve core and a compression spring that are assembled together; and a sealing washer is arranged on each of the combining surfaces between the valve seat and the valve body and between the valve body and the coil. The automobile gas fuel electronic-controlled injection electromagnetic valve is used for supplying combustible gas fuel to an automobile engine, so as to meet the need of using of the gas fuel of an automobile.
Description
Technical field
The utility model relates to a kind of solenoid valve to motor car engine supply combustible fuel gas.
Background technique
One over 100 years, constantly development of world car industry, human society and economic progress have been played huge impetus, but, caused huge pollution to environment for human survival and atmosphere simultaneously also constantly consuming a large amount of petroleum-based energy (mainly being gasoline and diesel product).
In order to reduce and substitute limited petroleum resource consumption, constantly reduce motor vehicle emission the pollution that is caused, countries in the world are all adopted and have been developed vehicular gaseous propellant, wherein most importantly compressed natural gas (CNG), liquefied petroleum gas (LPG) (LPG) and hydrogen (H2).
China is also promoting the use of various vehicular gaseous propellants gradually over nearly 20 years, estimates that 20-30 also has bigger development from now on.
After entering twentieth century, with use vapour, the diesel fuel automobile is the same, add tight motor vehicle emission request of national standard in order to reach to bring in constant renewal in, strengthen power in order to obtain better Economy simultaneously, adopt the motor car engine of gaseous fuel also all to adopt the computer electronic control system, its core control part is computer electronic control unit (ECU), and most important executive component is gaseous fuel electric-controlled injection solenoid valve.
The effect of electric-controlled injection solenoid valve is the control command according to ECU, accurate precision with microsecond level (1 second=1000000 microsecond), the opening and closing electric spray valve, with in each cylinder admission line of motor, in certain sequence regularly, by milligram level (=1000 milligrams of 1 grams) precision gas jet fuel, make and start function under various operating modes, can both than under work at optimum air/fuel.Use the CNG gaseous fuel to be example, use after the electric spray valve of electric control system controls, can make operating fuel cost decline 30%-50%, exhaust emission reduces 50%-80%, has great economic benefit and social enviroment protection benefit.
But, can not be applicable to gaseous fuel for altogether the solenoid valve of gasoline or diesel oil to motor car engine in the past, therefore designing a kind of solenoid valve to motor car engine supply combustible fuel gas has become exigence.
Summary of the invention
The purpose of this utility model provides a kind of solenoid valve to motor car engine supply combustible fuel gas, to satisfy the needs of automobile using gases fuel.
In order to realize above-mentioned purpose, can adopt following technological scheme: the vehicular gaseous propellant electric-controlled injection solenoid valve of this programme comprises:
One valve pocket, this valve pocket are the sleeve of a circle, and the front-end and back-end of its endoporus are respectively equipped with one section female thread;
One valve body, this valve body are the circle cover of a rear portion band boss, are shaped on the external screw thread that the female thread with the valve pocket front end matches on the cylindrical of boss, and the front portion of circle cover endoporus is shaped on one section female thread; The circle cover of this valve body passes from the front portion of valve pocket endoporus, and the external screw thread on its boss is tightened in the female threaded hole of valve pocket front end;
One coil, this coil are the sleeve of a circle, and it is contained among the valve pocket endoporus, and end face fits after its front-end face and the valve body, and there is an external cord its rear end;
One valve gap, this valve gap are the sleeve of a circle, and its endoporus is an inlet hole, and the middle part of sleeve is provided with a flange plate, are shaped on the external screw thread that the female thread with the valve pocket rear end matches on the cylindrical of flange plate, and the rear portion cylindrical of sleeve is provided with a circular groove; The anterior sleeve of this valve gap is contained in the endoporus of coil, and the external screw thread on its flange plate is tightened in the female threaded hole of valve pocket rear end;
One insulating bush, this insulating bush are assemblied in the space between valve pocket, coil and the valve gap;
One power socket, this power socket are the round basin shape of that made by elastic insulating material a, bottom of which has holes, and the inner hole sleeve of circle basin is on the cylindrical of valve pocket rear end, in the circular groove of borehole jack on the axle journal of valve gap rear portion of its bottom; The top of circle basin also has an acclivitous cylindrical pedestal, and the upper end of this pedestal is provided with a blind hole, above-mentioned external cord from insulating bush and this pedestal, pass and outside reach in the blind hole;
One valve seat, this valve seat comprises a fumarole on the cross central line, and the middle part of valve seat is provided with a disk, and the front end of disk is connected with a columnar blast nozzle, its rear end is connected with a circle cover, is shaped on the external screw thread that the female thread with the valve body inner bore front end matches on the cylindrical that this circle overlaps; The external screw thread that the circle of this valve seat puts is tightened in the female thread on the valve body, and the ear end face of its disk and the front-end face of valve body fit;
One spool, this spool comprises the sleeve of an external diameter and valve body inner bore sliding fit, its rear end has one section diameter spring hole bigger slightly than sleeve endoporus, one section cross section of its front portion is provided with 1-2 the small through hole vertical with its cross central line, the external diameter of this section is slightly less than the external diameter of sleeve, and the front-end and back-end of sleeve also are respectively installed with a rubber gasket; This spool is contained in the valve body inner bore, in the cavity of valve seat and valve cover chamber, and when the rear end of spool leans against the front end of valve gap, leave suitable gap between the front-end face of spool and the ear end face of valve seat;
One pressure spring, this pressure spring are contained in the spring hole of spool rear end, and its rear end withstands on the front end of valve gap;
One seal washer is being housed respectively between the junction plane of valve seat and valve body and between the junction plane of valve body and coil.
When end leans against the front end of valve gap after the said spool, leave suitable gap between the front-end face of spool and the ear end face of valve seat preferably between the 0.4-0.6 millimeter.
Above-mentioned said " preceding " and " back " are defined as: blast nozzle outlet be before, and meanwhile opposite be after.
The working principle of above-mentioned solenoid valve is (referring to Fig. 1 and Fig. 2): with ECG send logical, disconnected control signal is converted to the left and right displacement of spool 30, spray orifice opening and closing on the valve seat 10 realize the injection of gaseous fuel and stop to spray.
In the spray orifice size. spool stroke, under certain situation such as gas differential pressure, the gaseous fuel emitted dose just only depends on the spool opening time before and after the spray orifice.So by the determined different discharge time length of computer among the EC G, timing that just can clock like precision is quantitatively to certain cylinder injection desired gas fuel.
Its concrete working procedure is as follows:
1, gaseous fuel enters solenoid valve from the interior outer end of hole of valve gap 60, when coil 50 is not switched on, spool 30 is shifted to left end the valve port on the valve seat 10 is sealed under the acting in conjunction of spring 40 power and gas fuel pressure. and at this moment there is not gaseous fuel from electrically-controlled valve, to eject;
2, when EC G sends electric spray valve energising control command, coil 50 energisings also produce magnetic field in electrically-controlled valve, under the effect of magnetic force, spool 30 overcomes spring pressure and gas pressure is shifted to right-hand member rapidly, valve port is opened, and gaseous fuel ejects from the blast nozzle of solenoid valve;
3, when ECG sends electric spray valve outage control command, 50 outages of coil coil, magnetic field disappears, and under spring force and gas fuel pressure effect, spool 30 moves to left end rapidly, and the spray orifice on the valve seat 10 is closed again, and solenoid valve stops gaseous fuel and sprays.
The beneficial effects of the utility model are:
1, it has high switching speed.
Various motor car engine maximum speeds are about 3000-8000 rev/min, and phase shorter workweek of each solenoid valve break-make is about the 20-40 millisecond, and the shortest discharge time only is 5-10 millisecond (1 second=1000 milliseconds), and begin at every turn and close closed procedure only to be 1-2ms.
2, it can accurately control injection tolerance.
This solenoid valve can guarantee that the discharge time conformity reaches 0.1 Millisecond, has satisfied the requirement of conformity error≤5% of each cylinder working of motor.
3, the life-span of this solenoid valve long, can reach solenoid valve and open and close more than 600,000,000 times.
In order to make the utility model be convenient to understand, it is described further below by drawings and Examples with more clear.
Description of drawings
Fig. 1 is embodiment's 1 an of the present utility model structural representation.
Fig. 2 is embodiment's 2 an of the present utility model structural representation.
Embodiment
Embodiment 1, referring to Fig. 1.The solenoid valve A 1 of present embodiment comprises:
One valve pocket 60, this valve pocket 60 is the sleeve of a circle, the front-end and back-end of its endoporus are respectively equipped with one section female thread;
One valve body 20, this valve body 20 are the circle cover of a rear portion band boss, are shaped on the external screw thread that the female thread with valve pocket 60 front ends matches on the cylindrical of boss, and the front portion of circle cover endoporus is shaped on one section female thread; The circle cover of this valve body 20 passes from the front portion of valve pocket 60 endoporus, and the external screw thread on its boss is tightened in the female threaded hole of valve pocket 60 front ends;
One coil 50, this coil 50 is the sleeve of a circle, and it is contained among valve pocket 60 endoporus, and end face fits after its front-end face and the valve body 20, and there is an external cord 51 its rear end;
One valve gap 70, this valve gap 70 is the sleeve of a circle, and its endoporus is an inlet hole 71, and the middle part of sleeve is provided with a flange plate, is shaped on the external screw thread that the female thread with valve pocket 60 rear ends matches on the cylindrical of flange plate, and the rear portion cylindrical of sleeve is provided with a circular groove; The anterior sleeve of this valve gap 70 is contained in the endoporus of coil 50, and the external screw thread on its flange plate is tightened in the female threaded hole of valve pocket 60 rear ends;
One insulating bush 100, this insulating bush 100 are assemblied in the space between valve pocket 60, coil 50 and the valve gap 70;
One power socket 80, this power socket 80 are the round basin shape of that made by elastic insulating material a, bottom of which has holes, and the inner hole sleeve of circle basin is on the cylindrical of valve pocket 60 rear ends, in the circular groove of borehole jack on valve gap 70 rear portion axle journals of its bottom; The top of circle basin also has an acclivitous cylindrical pedestal 81, and the upper end of this pedestal 81 is provided with a blind hole 82, above-mentioned external cord 51 from insulating bush 100 and this pedestal 81, pass and outside reach in the blind hole 82;
One valve seat 10, this valve seat 10 comprises a fumarole 14 on the cross central line, the middle part of valve seat is provided with a disk 12, the front end of disk 12 is connected with a columnar blast nozzle 11, its rear end is connected with a circle cover 13, and this circle overlaps and is shaped on the external screw thread that the female thread with valve body 20 endoporus front ends matches on 13 the cylindrical; The external screw thread that the circle of this valve seat 10 puts is tightened in the female thread on the valve body 20, and the front-end face of the ear end face of its disk and valve body 20 fits;
One spool 30, this spool 30 is the sleeve of an external diameter and valve body 20 endoporus sliding fits, its rear end has one section diameter spring hole bigger slightly than sleeve endoporus, one section cross section of its front portion is provided with 1-2 the small through hole 31 vertical with its vertical center line, the external diameter of this section is slightly less than the external diameter of sleeve, and the front-end and back-end of sleeve also are respectively installed with a rubber gasket 130,110; This spool 30 is contained in valve body 20 endoporus, in the cavity of 70 of valve seat 10 and valve gaps, and when the rear end of spool 30 leans against the front end of valve gap 70, leave suitable gap between the ear end face of the front-end face of spool 30 and valve seat 10, preferably between the 0.4-0.6 millimeter, the best is 0.5 millimeter in this gap;
One pressure spring 40, this pressure spring 40 is contained in the spring hole of spool 30 rear ends, and its rear end withstands on the front end of valve gap 70;
One seal washer 140,120 is being housed respectively between the junction plane of valve seat 10 and valve body 20 and between the junction plane of valve body 20 and coil 50.
Next, face can also be provided with the circular groove of 2 fitting tight circles 90 after the circular groove on valve gap 70 rear portion cylindricals.
Embodiment 2, referring to Fig. 2.Present embodiment is substantially the same manner as Example 1, its difference only is that the external diameter of the blast nozzle 11-1 among the valve seat 10-1 is thicker than footpath outside embodiment 1 the blast nozzle 11, and also be provided with the circular groove of a fitting tight circle 140 on its cylindrical, fumarole 14-1 among its valve seat 10-1 is also thicker, equally, the middle part of its valve seat 10-1 also is provided with a disk 12-1, and the front end of disk 12-1 is connected with a columnar blast nozzle 11-1, and its rear end is connected with a circle cover 13-1.
Only be the preferred embodiment of the utility model below, but it does not limit practical range of the present utility model, the equivalent variations and the modification that promptly do not depart from claim of the present utility model and done must belong to the protection domain of the utility model.
Claims (4)
1. vehicular gaseous propellant electric-controlled injection solenoid valve is characterized in that comprising:
One valve pocket, this valve pocket are the sleeve of a circle, and the front-end and back-end of its endoporus are respectively equipped with one section female thread;
One valve body, this valve body are the circle cover of a rear portion band boss, are shaped on the external screw thread that the female thread with the valve pocket front end matches on the cylindrical of boss, and the front portion of circle cover endoporus is shaped on one section female thread; The circle cover of this valve body passes from the front portion of valve pocket endoporus, and the external screw thread on its boss is tightened in the female threaded hole of valve pocket front end;
One coil, this coil are the sleeve of a circle, and it is contained among the valve pocket endoporus, and end face fits after its front-end face and the valve body, and there is an external cord its rear end;
One valve gap, this valve gap are the sleeve of a circle, and its endoporus is an inlet hole, and the middle part of sleeve is provided with a flange plate, are shaped on the external screw thread that the female thread with the valve pocket rear end matches on the cylindrical of flange plate, and the rear portion cylindrical of sleeve is provided with a circular groove; The anterior sleeve of this valve gap is contained in the endoporus of coil, and the external screw thread on its flange plate is tightened in the female threaded hole of valve pocket rear end;
One insulating bush, this insulating bush are assemblied in the space between valve pocket, coil and the valve gap;
One power socket, this power socket are the round basin shape of that made by elastic insulating material a, bottom of which has holes, and the inner hole sleeve of circle basin is on the cylindrical of valve pocket rear end, in the circular groove of borehole jack on the axle journal of valve gap rear portion of its bottom; The top of circle basin also has an acclivitous cylindrical pedestal, and the upper end of this pedestal is provided with a blind hole, above-mentioned external cord from insulating bush and this pedestal, pass and outside reach in the blind hole;
One valve seat, this valve seat comprises a fumarole on the cross central line, and the middle part of valve seat is provided with a disk, and the front end of disk is connected with a columnar blast nozzle, its rear end is connected with a circle cover, is shaped on the external screw thread that the female thread with the valve body inner bore front end matches on the cylindrical that this circle overlaps; The external screw thread that the circle of this valve seat puts is tightened in the female thread on the valve body, and the ear end face of its disk and the front-end face of valve body fit;
One spool, this spool comprises the sleeve of an external diameter and valve body inner bore sliding fit, its rear end has one section diameter spring hole bigger slightly than sleeve endoporus, one section cross section of its front portion is provided with 1-2 the small through hole vertical with its vertical center line, the external diameter of this section is slightly less than the external diameter of sleeve, and the front-end and back-end of sleeve also are respectively installed with a rubber gasket; This spool is contained in the valve body inner bore, in the cavity of valve seat and valve cover chamber, and when the rear end of spool leans against the front end of valve gap, leave suitable gap between the front-end face of spool and the ear end face of valve seat;
One pressure spring, this pressure spring are contained in the spring hole of spool rear end, and its rear end withstands on the front end of valve gap;
One seal washer is being housed respectively between the junction plane of valve seat and valve body and between the junction plane of valve body and coil.
2. vehicular gaseous propellant electric-controlled injection solenoid valve according to claim 1 is characterized in that leaving suitable gap between the front-end face of spool and the ear end face of valve seat is between the 0.4-0.6 millimeter when end leans against the front end of valve gap after the said spool.
3. vehicular gaseous propellant electric-controlled injection solenoid valve according to claim 1 and 2 is characterized in that face after the circular groove on the cylindrical of said valve gap rear portion also is provided with the circular groove of 2 fitting tight circles.
4. vehicular gaseous propellant electric-controlled injection solenoid valve according to claim 3 is characterized in that also being provided with the circular groove of a fitting tight circle on circle outside the blast nozzle of said valve seat front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202611220U CN201650502U (en) | 2009-12-02 | 2009-12-02 | Automobile gas fuel electronic-controlled injection electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202611220U CN201650502U (en) | 2009-12-02 | 2009-12-02 | Automobile gas fuel electronic-controlled injection electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650502U true CN201650502U (en) | 2010-11-24 |
Family
ID=43115735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202611220U Expired - Fee Related CN201650502U (en) | 2009-12-02 | 2009-12-02 | Automobile gas fuel electronic-controlled injection electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650502U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644048A (en) * | 2013-12-17 | 2014-03-19 | 哈尔滨工程大学 | Directly operated type natural gas injection solenoid valve of dual-fuel engine |
| CN105545527A (en) * | 2016-01-29 | 2016-05-04 | 成都杜嘉机电有限公司 | Gas-adjusting CNG injection rail |
| CN105545528A (en) * | 2016-01-29 | 2016-05-04 | 成都杜嘉机电有限公司 | Gas injection rail for automobile gas supply system |
| CN105604740A (en) * | 2016-01-29 | 2016-05-25 | 成都杜嘉机电有限公司 | CNG (Compressed Natural Gas) injection system for automobile |
| CN105604743A (en) * | 2016-01-29 | 2016-05-25 | 成都杜嘉机电有限公司 | Gas injection device for automobile |
| CN105626315A (en) * | 2016-01-29 | 2016-06-01 | 成都杜嘉机电有限公司 | Gas injection structure for automotive fuel gas system |
| CN105626314A (en) * | 2016-01-29 | 2016-06-01 | 成都杜嘉机电有限公司 | Anti-freezing CNG air feeder |
| CN105649820A (en) * | 2016-01-29 | 2016-06-08 | 成都杜嘉机电有限公司 | Spray rail with stable regulation function |
| CN105673256A (en) * | 2016-01-29 | 2016-06-15 | 成都杜嘉机电有限公司 | Gas flow adjusting valve |
-
2009
- 2009-12-02 CN CN2009202611220U patent/CN201650502U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103644048A (en) * | 2013-12-17 | 2014-03-19 | 哈尔滨工程大学 | Directly operated type natural gas injection solenoid valve of dual-fuel engine |
| CN103644048B (en) * | 2013-12-17 | 2015-09-30 | 哈尔滨工程大学 | Duel fuel engine direct-acting type natural gas injection solenoid valve |
| CN105545527A (en) * | 2016-01-29 | 2016-05-04 | 成都杜嘉机电有限公司 | Gas-adjusting CNG injection rail |
| CN105545528A (en) * | 2016-01-29 | 2016-05-04 | 成都杜嘉机电有限公司 | Gas injection rail for automobile gas supply system |
| CN105604740A (en) * | 2016-01-29 | 2016-05-25 | 成都杜嘉机电有限公司 | CNG (Compressed Natural Gas) injection system for automobile |
| CN105604743A (en) * | 2016-01-29 | 2016-05-25 | 成都杜嘉机电有限公司 | Gas injection device for automobile |
| CN105626315A (en) * | 2016-01-29 | 2016-06-01 | 成都杜嘉机电有限公司 | Gas injection structure for automotive fuel gas system |
| CN105626314A (en) * | 2016-01-29 | 2016-06-01 | 成都杜嘉机电有限公司 | Anti-freezing CNG air feeder |
| CN105649820A (en) * | 2016-01-29 | 2016-06-08 | 成都杜嘉机电有限公司 | Spray rail with stable regulation function |
| CN105673256A (en) * | 2016-01-29 | 2016-06-15 | 成都杜嘉机电有限公司 | Gas flow adjusting valve |
| CN105673256B (en) * | 2016-01-29 | 2019-01-11 | 成都杜嘉机电有限公司 | Gas flow adjusts valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201650502U (en) | Automobile gas fuel electronic-controlled injection electromagnetic valve | |
| CN102705120B (en) | Dual-fuel electric control monomer ejector | |
| KR20160104059A (en) | Dual-fuel fuel injector | |
| CN103089505A (en) | Device and method capable of achieving natural gas and diesel double-fuel jet | |
| CN104314725A (en) | Middle hole pressure storage static leakage-free oil sprayer | |
| CN102003317A (en) | Gasoline direct spray oil sprayer | |
| CN204299753U (en) | A kind of high pressure common rail electric control fuel injector | |
| CN202718789U (en) | Dual-fuel electric-controlled single injector | |
| CN111336048A (en) | Fuel injector for realizing diesel/natural gas dual-fuel injection | |
| CN204783409U (en) | Oil spraying device | |
| CN201650501U (en) | Electrically-controlled spraying electromagnetic valve for vehicular gas fuel | |
| CN201650500U (en) | Electromagnetic valve for jetting automobile gas fuel by electrical control | |
| CN102425517B (en) | Gas fuel electric-controlled injection device | |
| CN201513255U (en) | Gas common rail device of dual-fuel combined power vehicle | |
| CN110118137A (en) | A kind of gaseous fuel injection system | |
| CN211777779U (en) | Fuel injector for realizing diesel/natural gas dual-fuel injection | |
| CN112855336B (en) | Pre-combustion chamber heat jet high-energy ignition system | |
| CN205423021U (en) | High -pressure common rail electrical control oil sprayer | |
| CN101397949B (en) | Gas control injector for compression hydrogen vehicle | |
| CN211874632U (en) | Large-flow small-return-oil common-rail oil injector for ship and power generation | |
| CN201786513U (en) | Adjustable fuel gas injection valve | |
| CN103161633A (en) | High-pressure fuel feeding pump | |
| CN102758713A (en) | Electrically-controlled dual-fuel nozzle assembly and working method thereof | |
| CN207212553U (en) | A kind of new micro- common-rail injector that ignites of double fuel machine | |
| CN112081673A (en) | Dual-fuel injector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20101124 Termination date: 20131202 |