CN2816530Y - Fully-automatic adjusting type pressure reducer - Google Patents
Fully-automatic adjusting type pressure reducer Download PDFInfo
- Publication number
- CN2816530Y CN2816530Y CN 200520050625 CN200520050625U CN2816530Y CN 2816530 Y CN2816530 Y CN 2816530Y CN 200520050625 CN200520050625 CN 200520050625 CN 200520050625 U CN200520050625 U CN 200520050625U CN 2816530 Y CN2816530 Y CN 2816530Y
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- Prior art keywords
- valve
- pilot valve
- diaphragm
- pilot
- automatic adjustment
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Abstract
The utility model discloses a fully-automatic adjusting type pressure reducing valve, which is composed of a valve cove, a diaphragm seat and a valve body while the valve cove, the diaphragm seat and the valve body are orderly connected together, wherein a control cavity is formed between the valve cover and the diaphragm seat; an inner cavity is formed between the valve body and the diaphragm seat, and a valve rod which penetrates the inner cavity and the control cavity is arranged inside the inner cavity; the lower end of the valve rod is provided with a valve plate for controlling the opening and closing of an opening and closing mouth, and the upper end of the valve rod is provided with a diaphragm which splits the control cavity into an upper chamber of the control cavity and a lower chamber of the control cavity; the diaphragm is firmly clamped between pressing plates of the diaphragm; the valve body is provided with a valve inlet and a valve outlet which are communicated with the inner cavity; the top of the valve cover is provided with an exhaust valve; an exhaust valve is arranged beside the diaphragm seat; the valve inlet and the valve outlet are respectively connected with a programming automatic adjustment guide valve through communicating pipes, the top end of the programming automatic adjustment guide valve is connected with a motor and the motor is connected with a controller. The utility model has the more reasonable structure and higher automation, and can realize fully-automatic regulation, satisfying the requirements of different working condition and accuracy.
Description
Technical field
The utility model is mainly concerned with a kind of structure of relief pressure valve, refers in particular to a kind of full-automatic adjustment adjustable compression release valve.
Background technique
Reduction valve of the prior art (as Piston reducing valve) owing to reasons such as project organization, thinkings, can only be taked the manual mouth pressure that adjusts.This adjustment manually comes with some shortcomings: at first be that the validity of adjusting is not very high, because manual setting is relevant with operator's level, error is bigger, and grasps bad for the variation of pressure; Next is that the product installation environment has very big difference, and some places are narrow, and operator are difficult to practical operation at the scene and do; The 3rd, this reduction valve of adjusting manually should not be realized far distance automatic chemical control system.
The model utility content
The technical problems to be solved in the utility model just is: at existing technical problem, provide a kind of structure more rationally, automaticity is higher, can realize adjusting full-automatic adjustment adjustable compression release valve full-automatic, that can satisfy various operating modes and required precision substantially.
In order to address the above problem, the solution that the utility model proposes is: a kind of full-automatic adjustment adjustable compression release valve, it passes through valve gap, diaphragm seat and valve body three are formed by connecting in regular turn, form control chamber between valve gap and the diaphragm seat, form inner chamber between valve body and the diaphragm seat, be equiped with the valve rod that runs through inner chamber and control chamber in this inner chamber, the lower end of valve rod is provided with control and opens and closes a mouthful valve plate that opens and closes, the upper end of valve rod then is provided with the diaphragm that control chamber is separated into control chamber epicoele and control chamber cavity of resorption, diaphragm is clamped between the diaphragm pressing plate, offer the valve inlet and the valve export that are connected with the valve inner cavity on the valve body, it is characterized in that: the top of described valve gap is equipped with first outlet valve; Diaphragm seat next door is equipped with second outlet valve; Valve inlet is adjusted pilot valve automatically by a connecting tube and a programming respectively with valve export and is linked to each other, and the top that pilot valve is adjusted in this programming automatically is connected with a motor, and described motor links to each other with a controller.
Described programming is adjusted pilot valve automatically and is formed by connecting in regular turn by pilot valve valve gap, pilot valve valve body, pilot valve diaphragm three, form the pilot valve control chamber between pilot valve valve gap and the pilot valve valve body, the pilot valve diaphragm is separated into control epicoele and control cavity of resorption with this pilot valve control chamber, be equiped with the pilot valve valve rod that runs through the pilot valve control chamber in the control cavity of resorption, the pilot valve diaphragm is fixed on the upper end of pilot valve valve rod, and be clamped between the diaphragm pressing plate, and the lower end of pilot valve valve rod heads on the valve plate guide rod, the valve plate guide rod is fixed on the pilot valve valve plate, and the pilot valve valve body lower end is provided with spring and gland; Offer the valve inlet, first valve export, second valve export that are connected with the pilot valve valve inner on the pilot valve valve body, wherein first valve export is provided with spacing needle value and regulates bolt sleeve; Be provided with pressure adjusting spring, spring bearer plate and adjusting screw rod in the pilot valve valve gap successively.
Adjusting screw rod in the described pilot valve valve gap is provided with turning lever, portable coupling, and links to each other with motor by portable coupling, and motor and programming are adjusted pilot valve automatically and together be fixed on the link press span; The position of corresponding turning lever is provided with travel control switch on described link press span.
Described controller mainly comprises a single-chip microcomputer and pressure transducer that is connected with single-chip microcomputer and displacement transducer, and described pressure transducer is adjusted pilot valve automatically with displacement transducer and programming and linked to each other, and this controller output end links to each other with motor.
Described controller comprises that also a current sensor links to each other with single-chip microcomputer and current overload device, and this current sensor links to each other with motor.
Offer the equalizing orifice that communicates with inner chamber on the described diaphragm seat.
Establish on the connecting tube of the described valve body import and the automatic adjustment pilot valve of programming and be provided with service valve, filter and pressure gauge successively, on the connecting tube of the valve outlet and the automatic adjustment pilot valve of programming, then be provided with service valve.
Described first outlet valve and second outlet valve are solenoid valve.
Compared with prior art, advantage of the present utility model is:
1, full-automatic adjustment adjustable compression release valve of the present utility model adopts automation mechanized operation fully, by collecting real-time force value, utilize single-chip microcomputer and program that pressure is accurately adjusted in real time, thereby avoided owing to force value changes error too fast and that manual setting brings, also reduced harsh requirement, made that operation is easier operator quality;
2, full-automatic adjustment adjustable compression release valve of the present utility model is easy for installation, to installation environment require lower slightly, regardless of installation environment, can both be very easy be to implement installation exercise;
3, full-automatic adjustment adjustable compression release valve of the present utility model can be realized far distance automatic chemical control system, is applicable to be difficult to adopt manual operation or the operatorless operating mode of needs, thereby has enlarged the Applicable scope of reduction valve.
Description of drawings
Fig. 1 is the cross-sectional schematic of facing that the utility model embodiment is in closed condition;
Fig. 2 be the utility model embodiment the pilot valve working state face cross-sectional schematic;
Fig. 3 is the structure block diagram of the utility model embodiment controller;
Fig. 4 is the utility model embodiment's a circuit theory schematic representation;
Fig. 5 is a scheme of installation of the present utility model.
Marginal data
1. valve body 2. valve plate seat 3.V type mouth plugs
4. sealing joint strip 5. valve plates 6. controllers
7. pilot valve 9. filters are adjusted in valve rod 8. programmings automatically
10. first outlet valve, 11. second outlet valves, 12. pressure gauges
13. diaphragm seat 14. valve gaps 15. diaphragms
16. equalizing orifice 17. diaphragm pressing plates 18. control chamber cavity of resorptions
19. control chamber epicoele 20. service valves 21. service valves
24. valve body import 25. valve outlets 26. control chambers
27. inner chamber
61. single-chip microcomputer 62. pressure transducers 63. displacement transducers
64, current sensor 65. current overload devices
81. pilot valve valve body 82. pilot valve valve gaps 83. pilot valve diaphragms
84. pilot valve valve rod 85. pressure adjusting springs
87. spring bearer plate 88. adjusting screw rods 89. valve plate guide rods
810. pilot valve seat 811. pilot valve valve plates 812. springs
813. gland 814. is regulated bolt sleeve 815. spacing needle values
816. first valve outlet, 817. valve body imports, 818. second valve outlets
819. equalizing orifice 820. control cavity of resorptions 821. control epicoeles
822. turning lever 823. travel control switchs 824. link press spans
825. portable coupling 826. motors 829. diaphragm pressing plates
830. pilot valve control chamber
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further details.
As Fig. 1 and shown in Figure 5, the full-automatic adjustment adjustable compression release valve of the utility model specific embodiment is formed by connecting in regular turn by valve gap 14, diaphragm seat 13 and valve body 1 three, form between valve gap 14 and the diaphragm seat 13 and form inner chamber 27 between control chamber 26, valve body 1 and the diaphragm seat 13, the valve rod 7 that runs through inner chamber 27 and control chamber 26 is housed in this inner chamber 27, and the lower end of valve rod 7 is provided with control and opens and closes mouthful 28 valve plates 5 that open and close and sealing joint strip 4, V-shaped part plug 3.Valve rod 7 upper ends then are provided with the diaphragm 15 that control chamber 26 is separated into control chamber epicoele 19 and control chamber cavity of resorption 18, and this diaphragm 15 can adopt rubber material to make, and is clamped between the diaphragm pressing plate 17, offers the equalizing orifice 16 that communicates with inner chamber 27 on the diaphragm seat 13.Offer the valve inlet 24 and the valve export 25 that are connected with the inner chamber 27 of valve body 1 on the valve body 1, diaphragm seat 13 outsides are provided with second outlet valve 11, and the top of valve gap 14 is provided with first outlet valve 10, and this first outlet valve 10 and second outlet valve 11 can be solenoid valve.Valve inlet 24 is adjusted pilot valve 8 automatically by a connecting tube and a programming respectively with valve export 25 and is linked to each other, this programming is adjusted pilot valve 8 tops automatically and is connected with a motor 826, motor 826 links to each other with a controller 6, automatically adjust pilot valve 8 and motor 826 by controller 6 control programmings and can make diaphragm 15 motions, adjust the automatic pilot valve 8 of adjusting of this programming and can change the interior outlet pressure of exhalant canal, the product of having adjusted is after locking, and the work that outlet pressure is stable with energy can not produce variation in pressure.Referring to Fig. 3, controller 6 mainly comprises a single-chip microcomputer 61 and the pressure transducer 62 that is connected with single-chip microcomputer 61, displacement transducer 63 and current sensor 64, pressure transducer 62 is adjusted pilot valve 8 automatically with displacement transducer 63 and programming and is linked to each other, current sensor 64 links to each other with motor 826, current sensor 64 also links to each other with single-chip microcomputer 61 and current overload device 65, and the output terminal of this controller 6 links to each other with motor 826.Establish on the connecting tube of the valve body import 24 and the automatic adjustment pilot valve 8 of programming and be provided with service valve 20, filter 9 and pressure gauge 12 successively, on the connecting tube of the valve outlet 25 and the automatic adjustment pilot valve 8 of programming, then be provided with service valve 21.
As shown in Figure 2, the utility model embodiment's pilot valve is by pilot valve valve gap 82, pilot valve valve body 81, pilot valve diaphragm 83 is connected in sequence, form pilot valve control chamber 830 between pilot valve valve body 81 and the valve gap 82, pilot valve diaphragm 83 is separated into pilot valve control chamber epicoele 821 and pilot valve control chamber cavity of resorption 820 with this pilot valve control chamber 830, be equiped with the pilot valve valve rod 84 that runs through pilot valve control chamber 830 in the pilot valve control chamber cavity of resorption 820, pilot valve diaphragm 83 is fixed on the upper end of pilot valve valve rod 84, this pilot valve diaphragm 3 can adopt rubber material to make, and is clamped between the pilot valve diaphragm pressing plate 829 and with nut to compress.The pilot valve valve body 81 other pilot valve equalizing orifices 819 that are provided with, the middle pilot valve seat 810 that connects, the centre is provided with through hole, the lower end of pilot valve valve rod 84 heads on valve plate guide rod 89, pilot valve valve plate 811, spring 812, gland 813, other valve body import 817, first valve outlet 816 and second valve outlet 818 of being provided with in pilot valve valve body 81 centers, in first valve outlet 816, be provided with straight spacing needle value 815, adjusting screw rod cover 814, be provided with pressure adjusting spring 85, spring bearer plate 87 and adjusting screw rod 88 in the pilot valve valve gap 82 successively.Adjusting screw rod 88 in the pilot valve valve gap 82 is provided with turning lever 822, portable coupling 825, and links to each other with motor 826 by portable coupling 825, and motor 826 and programming are adjusted pilot valve 8 automatically and together be fixed on the link press span 824; The position of corresponding turning lever 822 is provided with travel control switch 823 on described link press span 824.
As shown in Figure 3 and Figure 4, controller 6 mainly comprises a single-chip microcomputer 61 and the pressure transducer 62 that is connected with single-chip microcomputer 61, displacement transducer 63 and current sensor 64, pressure transducer 62 is adjusted pilot valve 8 automatically with displacement transducer 63 and programming and is linked to each other, current sensor 64 links to each other with motor 826, current sensor 64 also links to each other with single-chip microcomputer 61 and current overload device 65, and the output terminal of this controller 6 links to each other with motor 826.This controller 6 also is connected with a Display And Keyboard module that is convenient to operation.U5 is a single-chip microcomputer among the figure, and 14 pin of this single-chip microcomputer connect the lower position switch signal, and 15 pin connect limit switch signal; 16,27,28 AD converter that connect pressure transducer 62 are used to read force value; The operation that 23 pin are used to control motor 826 with stop, current sensor 64,5 pin that 22 pin are used to detect motor 826 electric currents connect the traffic direction control relay of motor 826,6 pin connect the disconnecting relay of motor 826 power supplys.The working principle of this controller 6 is: the Display And Keyboard module is under the control of single-chip microcomputer 61 systems, be used to show the current pressure value during proper functioning, be used to be provided with target pressure value under the state being provided with, its target pressure value is stored in the memory cell of single-chip microcomputer 61 systems.The pressure signal that pressure transducer 62 is sent here converts digital signal to through A/D converter, gives single-chip microcomputer 61 demonstrations and carries out computing.Control motor 826 is the low speed AC motor, and has designed positive and reverse rotation control circuit, is used for the control programming is adjusted automatically the opening degree of pilot valve 8.When adjusting automatically, the pressure signal that single-chip microcomputer 61 systems one side sampled pressure sensor 62 is sent here, goal pressure with this pressure and setting compares on one side, according to 826 runnings of comparative result adjustment control motor, thereby adjust the opening degree that pilot valve 8 is adjusted in programming automatically, reach the purpose of adjusting delivery pressure.In order to improve the reliability of whole system; also designed the kinds of protect circuit: the over-current protection circuit of motor 826; this circuit is sent signal when motor 826 electric currents surpass certain value; notice single-chip microcomputer 61 systems cut off motor 826 power supplys; when the automatic opening degree of adjusting pilot valve 8 of programming reaches capacity the position; programming is adjusted the upper limit position switch or the lower position switch of pilot valve 8 automatically and is also sent signal, and notice single-chip microcomputer 61 systems cut off motor 826 power supplys, can reliable operation with the protection whole system.
The working principle of the utility model reduction valve: adjustable compression release valve is that the variation by outlet pressure feeds back to programming and adjusts automatically on the pilot valve 8, adjusts the aperture that pilot valve 8 is controlled the main valve plate automatically by programming again, and predetermined downstream pressure is remained unchanged.When outlet pressure is adjusted the setting value of pilot valve 8 automatically greater than programming, outlet pressure water is from enter in pilot valve diaphragm 83 cavity of resorptions connecting tube, promote to move on the pilot valve valve rod 84, pilot valve valve plate 811 apertures reduce, automatically adjust pilot valve 8 and raise to the pressure of the press water of main valve control room epicoele 19 again thereby be directed at from entering programming connecting tube, promote valve rod 7 and move down, the aperture of valve plate 5 reduces thereupon, and downstream pressure reduces.When outlet pressure is adjusted pilot valve 8 setting values automatically less than programming, 83 times cavity pressures of pilot valve diaphragm reduce, pilot valve valve rod 84 moves down, pilot valve valve plate 811 apertures increase, inlet pressure water is adjusted pilot valve 8 again to outlet end automatically from entering programming connecting tube, main valve control room epicoele 19 pressure are reduced, and the aperture of valve plate 5 increases thereupon, and downstream pressure increases.
The full-automatic adjustable compression release valve of adjusting is realized control automatically by controller 6.On controller 6, prior target setting value.System promptly instructs motor 826 to do along the rotation of (instead) clock, and motor 826 drives portable coupling 825 and adjusting screw rod 88 rotations, along with the rotation of adjusting screw rod 88, and outlet pressure raise gradually (reduction).62 of pressure transducers are to single-chip microcomputer 61 feedback informations, and when pressure reached desired value, motor 826 promptly stopped automatically.
System has taked double protective gear: i.e. Stroke Control protection and overcurrent protection.When outlet pressure reaches desired value and motor 826 when working on, then travel control switch 823 will be cut off the electricity supply.When still failing supply disconnecton as stroke system control switch 823, motor 826 moment of torsion that works on increases, and electric current increases.At this moment current overload device 65 also can play the effect of protective system automatically with supply disconnecton.
Claims (8)
1, a kind of full-automatic adjustment adjustable compression release valve, it is by valve gap (14), diaphragm seat (13) and valve body (1) three are formed by connecting in regular turn, form control chamber (26) between valve gap (14) and the diaphragm seat (13), form inner chamber (27) between valve body (1) and the diaphragm seat (13), be equiped with the valve rod (7) that runs through inner chamber (27) and control chamber (26) in this inner chamber (27), the lower end of valve rod (7) is provided with control and opens and closes the valve plate (5) that mouthful (28) open and close, the upper end of valve rod (7) then is provided with the diaphragm (15) that control chamber (26) is separated into control chamber epicoele (19) and control chamber cavity of resorption (18), diaphragm (15) is clamped between the diaphragm pressing plate (11), offer the valve inlet (24) and the valve export (25) that are connected with valve body (1) internal cavities on the valve body (1), it is characterized in that: the top of described valve gap (14) is equipped with first outlet valve (10); Diaphragm seat (13) next door is equipped with second outlet valve (11); Valve inlet (24) is adjusted pilot valve (8) automatically by a connecting tube and a programming respectively with valve export (25) and is linked to each other, and the top that pilot valve (8) is adjusted in this programming automatically is connected with a motor (826), and described motor (826) links to each other with a controller (6).
2, full-automatic adjustment adjustable compression release valve according to claim 1, it is characterized in that: described programming is adjusted pilot valve (8) automatically by pilot valve valve gap (82), pilot valve valve body (81), pilot valve diaphragm (83) three is formed by connecting in regular turn, form pilot valve control chamber (830) between pilot valve valve gap (82) and the pilot valve valve body (81), pilot valve diaphragm (83) is separated into control epicoele (821) and control cavity of resorption (820) with this pilot valve control chamber (830), be equiped with the pilot valve valve rod (84) that runs through pilot valve control chamber (830) in the control cavity of resorption (820), pilot valve diaphragm (83) is fixed on the upper end of pilot valve valve rod (84), and be clamped between the diaphragm pressing plate (829), and the lower end of pilot valve valve rod (84) heads on valve plate guide rod (89), valve plate guide rod (89) is fixed on the pilot valve valve plate (811), and pilot valve valve body (81) lower end is provided with spring (812) and gland (813); Offer the valve inlet (817), first valve export (816), second valve export (817) that are connected with pilot valve valve body (81) inside on the pilot valve valve body (81), wherein first valve export (816) is provided with spacing needle value (815) and regulates bolt sleeve (814); Be provided with pressure adjusting spring (85), spring bearer plate (87) and adjusting screw rod (88) in the pilot valve valve gap (82) successively.
3, full-automatic adjustment adjustable compression release valve according to claim 2, it is characterized in that: the adjusting screw rod (88) in the described pilot valve valve gap (82) is provided with turning lever (822), portable coupling (825), and link to each other with motor (826) by portable coupling (825), the motor (826) and the automatic adjustment pilot valve (8) of programming together are fixed on the link press span (824); The position of going up corresponding turning lever (822) at described link press span (824) is provided with travel control switch (823).
4, according to any one described full-automatic adjustment adjustable compression release valve in claim 1 or 2 or 3, it is characterized in that: described controller (6) mainly comprises a single-chip microcomputer (61) and pressure transducer (62) that is connected with single-chip microcomputer (61) and displacement transducer (63), described pressure transducer (62) is adjusted pilot valve (8) automatically with displacement transducer (63) and programming and is linked to each other, and the output terminal of this controller (6) links to each other with motor (826).
5, full-automatic adjustment adjustable compression release valve according to claim 4, it is characterized in that: described controller (6) comprises that also a current sensor (64) links to each other with single-chip microcomputer (61) and current overload device (65), and this current sensor (64) links to each other with motor (826).
6, according to any one described full-automatic adjustment adjustable compression release valve in the claim 1,2,3 or 5, it is characterized in that: offer the equalizing orifice (16) that communicates with inner chamber (27) on the diaphragm seat (13).
7, according to any one described full-automatic adjustment adjustable compression release valve in the claim 1,2,3 or 5, it is characterized in that: establish on the connecting tube of the described valve body import (24) and the automatic adjustment pilot valve (8) of programming and be provided with service valve (20), filter (9) and pressure gauge (12) successively, on the connecting tube of the valve outlet (25) and the automatic adjustment pilot valve (8) of programming, then be provided with service valve (21).
8, according to any one described full-automatic adjustment adjustable compression release valve in the claim 1,2,3 or 5, it is characterized in that: described first outlet valve (10) and second outlet valve (11) are solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520050625 CN2816530Y (en) | 2005-03-31 | 2005-03-31 | Fully-automatic adjusting type pressure reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520050625 CN2816530Y (en) | 2005-03-31 | 2005-03-31 | Fully-automatic adjusting type pressure reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816530Y true CN2816530Y (en) | 2006-09-13 |
Family
ID=36996340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520050625 Expired - Lifetime CN2816530Y (en) | 2005-03-31 | 2005-03-31 | Fully-automatic adjusting type pressure reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816530Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603747A (en) * | 2013-08-10 | 2014-02-26 | 蒙国宁 | Intake pressure balancing adjuster for supercharged and intercooled gas engine |
| CN108121374A (en) * | 2016-11-30 | 2018-06-05 | 北京航天计量测试技术研究所 | A kind of capacity high-pressure gas pressure control device |
| CN109139930A (en) * | 2018-10-18 | 2019-01-04 | 胜利阀门有限公司 | A kind of energy conservation and environmental protection wisdom pressure regulator valve |
| CN112431951A (en) * | 2020-11-12 | 2021-03-02 | 株洲珠华水工业科技开发有限公司 | Multi-period self-adaptive constant-voltage system |
-
2005
- 2005-03-31 CN CN 200520050625 patent/CN2816530Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603747A (en) * | 2013-08-10 | 2014-02-26 | 蒙国宁 | Intake pressure balancing adjuster for supercharged and intercooled gas engine |
| CN103603747B (en) * | 2013-08-10 | 2018-03-30 | 蒙国宁 | Admission pressure balance regulator for charge inter cooling gas engine |
| CN108121374A (en) * | 2016-11-30 | 2018-06-05 | 北京航天计量测试技术研究所 | A kind of capacity high-pressure gas pressure control device |
| CN109139930A (en) * | 2018-10-18 | 2019-01-04 | 胜利阀门有限公司 | A kind of energy conservation and environmental protection wisdom pressure regulator valve |
| CN109139930B (en) * | 2018-10-18 | 2024-04-16 | 胜利阀门有限公司 | Energy-saving environment-friendly intelligent pressure regulating valve |
| CN112431951A (en) * | 2020-11-12 | 2021-03-02 | 株洲珠华水工业科技开发有限公司 | Multi-period self-adaptive constant-voltage system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150331 Granted publication date: 20060913 |