CN102159796A - Guide vane support arrangement - Google Patents
Guide vane support arrangement Download PDFInfo
- Publication number
- CN102159796A CN102159796A CN200980136134.3A CN200980136134A CN102159796A CN 102159796 A CN102159796 A CN 102159796A CN 200980136134 A CN200980136134 A CN 200980136134A CN 102159796 A CN102159796 A CN 102159796A
- Authority
- CN
- China
- Prior art keywords
- guide vane
- vane support
- supporting structure
- support
- height adjustment
- 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.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/246—Fastening of diaphragms or stator-rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/26—Double casings; Measures against temperature strain in casings
- F01D25/265—Vertically split casings; Clamping arrangements therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
- F05D2230/644—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins for adjusting the position or the alignment, e.g. wedges or eccenters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention relates to a guide vane support arrangement for a turbine, comprising a guide vane support (1) and a carriage (2) for the guide vane support. A fixing element (3) is disposed between the guide vane support (1) and the carriage (2) in such a way that the guide vane support (1) can swivel inside the carriage (2) about the fixing element (3). The invention also relates to a method for adjusting the radial play between the guide vane support (1) and the carriage (2).
Description
Technical field
The present invention relates to the method for the radial clearance between a kind of guide vane support that is used for turbo machine and a kind of maintenance body that is used to regulate guide vane support and guide vane support.
Background technique
The guide vane support is installed in nearly all multistage overvoltage steam turbine at present.The main task of guide vane support is to hold guide vane.In director element, guide to guide vane support axial centre.Fix by vertical screw realization side mostly.Be connected and fixed by groove-flange in shell at axial support.At this choice structure like this, the guide vane support can be expanded under heat affecting unfetteredly, do not change the position of axial centre simultaneously.Use different adjustment component for the position of the axial centre of regulating the guide vane support, they also must bear except must bearing weight owing to holding the torque that guide vane causes.The guide vane support generally is a double-body bike, wherein mostly realizes the Height Adjustment of level on the lower member of the guide vane support of double-body bike.Use mating member for the Height Adjustment of level, they are arranged between turbine casing and the guide vane support with accurate dimensions grinding and they.By means of retaining screw mating member is fixed in the guide vane support.Must make mating member be ground to size like this at this, make the guide vane support accurately identical up and down with gap size between the turbine casing.Realize the gap adjustment of side direction by additional adjustment screw.Must very accurately realize axial centre ground alignment guide blade rack, because also regulate the radial clearance between guide vane support/guide vane and the turbine rotor thus.
The defective of described guide vane supporting structure mainly is to take a lot of trouble ground grinding mating member individually for each guide vane supporting structure.This causes high assembly fee to be used.
Summary of the invention
Therefore the objective of the invention is, the guide vane supporting structure is provided, it is axial centre ground alignment guide blade rack simply.The purpose of this invention is to provide a kind of method that is used between guide vane support and maintenance body, adjusting radial clearance in addition.
This purpose is achieved by the feature of independent claims 1 and independent claims 12.The content of dependent claims is favourable expansion structure and improvement project, and they can use individually or in combination with one another.
Comprise guide vane support and the maintenance body that is used for the guide vane support according to the guide vane supporting structure that is used for turbo machine of the present invention, it is characterized in that, between guide vane support and maintenance body, fixed element is set like this, makes the guide vane support keep body inner around the fixed element rotation.But can make the guide vane support fixing in a circumferential direction by rotation ground stationary guide blades support, and however also can change the radial clearance between guide vane support and the rotor.
A favourable expansion structure regulation of the present invention, described guide vane supporting structure is characterised in that, between guide vane support and maintenance body, two height adjustment element are set like this, make the guide vane support keep body inside adjust in the horizontal direction.Replace the mating member that uses at present, use height adjustment element, and with the former different horizontal adjustemt simply of solution guide vane support, need not to regrind and cut mating member.Thoroughly simplify the radial clearance adjustment between guide vane support and the rotor thus.Can realize adjusting in installment state easily.
A particularly preferred expansion structure regulation of the present invention, described fixed element has running shaft, can rotation around its guide vane support.Obtain simple especially fixed element structure by the use running shaft, and realize the simple especially rotation of guide vane support.Simple especially thus and price is the fixed processing element advantageously, and because its simple structure guarantees reliable functioning.
Another preferred expansion structure regulation of the present invention, described fixed element has two portions of scabbling that are arranged in parallel, they jointly form being connected of form fit like this with notch in the maintenance body of guide vane support, the guide vane support is fixed in a circumferential direction keeps in the body.This maintenance body generally is the constituent element of turbine casing.Therefore special in a circumferential direction fixing realized simply wherein makes fixed element be inserted in the notch with guide vane support lower member simply.The side that is used to abut in the notch that keeps body in the portion of scabbling of this fixed element.Prevent fixed element and coupled guide vane support moving in a circumferential direction effectively.Can process the acting in conjunction of the notch in the maintenance body with two fixed element structures of scabbling portion and formation and guide vane support especially simply, and however also guarantee stationary guide blades support reliably.Can price advantageously and however also with highi degree of accuracy, processing notch and in fixed element, process the portion of scabbling that is arranged in parallel.
Another particularly preferred expansion structure regulation of the present invention, described height adjustment element and fixed element basic structure constitute in the same manner and have a tapped hole that is used to adjust screw.The structure identical with fixed element basic structure can advantageously be processed by abnormal cost, because basic identical ground process component.Can in height adjustment element, save in the portion of scabbling that constitutes on the fixed element.Can hold the adjustment screw by the thread pore structure in the fixed element.Adjust screw is used to make the guide vane support keeping body internal water level land to move for this reason.By screwing in the adjustment screw guide vane support is moved upward at horizontal position.Screwing out the adjustment screw makes the guide vane support move downward at horizontal position.Use has the height adjustment element of tapped hole and adjustment screw can infinitely adjust the guide vane support in the horizontal direction in installment state.Adjust the radial clearance between guide vane support and the rotor thus especially simply.
A particularly preferred expansion structure regulation of the present invention, the longitudinal axis of the tapped hole in the described height adjustment element is vertical mutually with the longitudinal axis of running shaft.When screwing in the adjustment screw, can make height adjustment element center on the running shaft rotation thus, always guarantee to adjust corresponding lip-deep bright and clean recline of screw thus at the guide vane support.Can not cause adjusting block or the adjust screw of screw on the abutment face that keeps corresponding formation on the body tilts to recline.This is important, because the weight of guide vane support and torque are born by screw substantially.
Another favourable expansion structure regulation of the present invention, described guide vane support constitutes with the form of the maintenance body difference double-body bike ground that is used for the guide vane support with lower member and upper-part.The two style structure of guide vane support obviously is easy to assemble guide vane.By using lower member and upper-part, not only for the guide vane support but also for the maintenance body of guide vane support, all reduce generally assembly fee with and the processing that is easy to two component.
The present invention also comprises a kind of method that is used to adjust the guide vane support and keeps the radial clearance between the body, it is characterized in that assembling fixing units and height adjustment element in the guide vane support; The guide vane support is installed in keeping body and is fixed by fixed element; Adjust screw adjustment radial clearance by in height adjustment element, screwing in.Described fixed element is by being responsible in a circumferential direction fixing of guide vane support in the maintenance body that is arranged in the guide vane support.But, realize the Height Adjustment of the radial clearance of guide vane supporting structure simultaneously by director element mobility in vertical direction.Guarantee of the rotation of guide vane support at this around fixed element.Adjust screw by in height adjustment element, regulating, on the one hand at horizontal position mobile guide blade rack.Realize of the rotation of guide vane support simultaneously around fixed element.Therefore adjust screw by on each height adjustment element, adjusting two, can guarantee on the one hand that the guide vane support is keeping the inner correct horizontal position of body, can accurately adjust the radial clearance between guide vane support and the maintenance body on the other hand generally, also between guide vane support/guide vane and turbine rotor, adjust uniform radial clearance thus.
Therefore can be according to guide vane supporting structure of the present invention by three elements only, the i.e. accurate adjustment of the radial clearance between fixed element and two height adjustment element realization guide vane supports and the rotor.Thoroughly reduce structural expense thus.Can be by means of height adjustment element and infinitely adjust the guide vane support at this in installment state.This has obviously reduced assembly fee usefulness.
Description of drawings
Explain embodiments of the invention and other advantage by means of accompanying drawing below.In the accompanying drawing:
Fig. 1 letter illustrates the lower member that is used for the maintenance body of guide vane support according to of the present invention,
Fig. 2 letter illustrates the lower member according to the guide vane support of double-body bike of the present invention,
Fig. 3 letter be illustrated in shown in Fig. 2 according to guide vane support of the present invention, have the fixed element and the height adjustment element of assembling,
Fig. 4 letter illustrates the detailed drawing of fixing and height adjustment element,
Fig. 5 letter illustrates the guide vane support of double-body bike and the assembling condition of the guide vane supporting structure of the maintenance body of the double-body bike that is used for the guide vane support.
Embodiment
Relate separately to the view of obvious simplification in the accompanying drawings, wherein only illustrate main, for describing component required in this invention.
Component identical or that function is identical are furnished with identical label symbol relatively with accompanying drawing.
Fig. 1 illustrates the lower member that the double-body bike that is used for guide vane support 1 keeps body 2.This maintenance body 2 generally is the constituent element of turbine casing, but also can be made of component independently.
Described maintenance body 2 has flange 12 on the circumferential surface 11 within it.In flange, constitute notch 13 in two opened end portions that keep body 2.At assembling condition, described notch is used for, for the adjustment screw 10 of height adjustment element 4 provides bright and clean abutment face (seeing Fig. 3 and 4).Described in addition maintenance body 2 has notch 8 in a circumferential direction medially in flange 12.This notch 8 is used to hold fixed element 3(at assembling condition and sees Fig. 4).In Figure 4 and 5, explain the detailed structure of guide vane supporting structure and the function of height adjustment element and fixed element 3 below in detail.
Fig. 2 illustrates the three-dimensional view of guide vane support 1.This guide vane support 1 has the U-shaped profile of outside sensing.Complementally in guide vane support 1, in outer peripheral surface, be provided with the containing seat that is used for height adjustment element 4 and fixed element 3 with notch 13 and notch 8 in the flange 12.Containing seat in the guide vane support also has hole 14 respectively except the portion of scabbling, it is worked in the side of U-shaped profile.Hole 14 is used to hold fixed element 3 or height adjustment element 4.For this reason as shown in Figure 3, fixed element 3 or height adjustment element 4 are imported in the hole of guide vane support 1 by its running shaft 5.For be easy to that parts import and and mobility make containing seat additionally on the U-shaped bottom of guide vane support 1, have the portion of scabbling slightly.Hole 14 preferably is worked in such side, and also being positioned at pressure direction p(thus sees Fig. 2 along flow direction for it) on.The layout of guide vane in guide vane support 1 and fixing at length is not shown, but can realizes by known mode.
Fig. 4 a and 4b illustrate the detailed drawing of fixed element 3 and height adjustment element 4 respectively.Two parts constitute basic identically, and are made up of the matrix and the running shaft 5 of substantially cylindrical, and this running shaft imports in the hole 14 of guide vane support 1.Described fixed element 3 also has two portions of scabbling that are arranged in parallel 6,7, they lean in keeping the notch 8 of body 2 and can realize so thus guide vane support 1 and being connected of form fit that keeps between the body 2 in installment state, and guide vane support 1 is fixed on circumferencial direction C in the maintenance body 2.Described height adjustment element 4 also has the tapped hole 9 that is used to adjust screw 10.Longitudinal axis L 1 at this tapped hole 9 is vertical mutually with the longitudinal axis L 2 of running shaft 5.When screw is adjusted in rotation, can make height adjustment element thus, make thus and adjust screw and can not lean on the regulation plane in keeping body 2 with blocking with certain angle rotation.This is a particular importance, adjusts on the screw because the weight of guide vane support 1 is positioned at.Therefore the essential lip-deep good and big as far as possible especially abutment face of regulation of adjustment screw in keeping body 2 that guarantee.
Fig. 5 illustrates the guide vane supporting structure of finishing assembling.The U-shaped profile of guide vane support 1 is arranged on like this and keeps in the body 2, makes it surround the flange 12 that keeps body 2.Fixing in the axial direction simultaneously thus.Described fixed element 3 and height adjustment element 4 are arranged in each containing seat and the protectorate that keep body 2 and are directed to blade rack 1 encirclement.Avoid lesion element thus as far as possible.
To describe the method that is used to adjust guide vane support 1 and keeps the radial clearance between the body 2 below in detail.At first fixed element 3 and height adjustment element 4 are installed in the hole 14 of guide vane support 1 by its running shaft 5 for this reason.After element 4,5 being installed in the guide vane support, guide vane support 1 is inserted in the maintenance body 2.The portion of scabbling 6,7 at this fixed element 3 leans in the notch 8 that is keeping body 2, realizes guide vane support 1 fixing on circumferencial direction C thus.Described fixed element 3 and notch 8 form being connected of form fit at this, wherein also guarantee motion diametrically, because fixed element is radially can be movable back and forth in notch 8.Lean on the notch that is keeping in the body 2 when making adjustment screw 10 simultaneously in guide vane support 1 being encased in maintenance body 2.Now only by regulating the adjustment of adjusting screw 10 realization guide vane supports 1 and keeping the radial clearance between the body 2.Adjust screw 10 realization guide vane supports in the rotations that keep body 2 inside around fixed element 3 by regulating.Realize the Height Adjustment of guide vane support 1 simultaneously in guide vane supporting structure inside.The adjustment screw 10 of height adjustment element 4 must be left and is distinguished such degree ground rotation to the right now, makes and adjust uniform radial clearance between guide vane support 1 and maintenance body 2.
Therefore can pass through only two radial clearance adjustment of adjusting between screw realization guide vane supports 1 and the maintenance body 2 according to the guide vane supporting structure that is used for fixing guide vane support 1 of the present invention, and realize the radial clearance adjustment between guide vane and the rotor thus.Can realize adjusting continuously and in installment state at this.Therefore can save at present Height Adjustment by means of the complexity of mating member (they must with the pre-grinding of accurate dimensions).Therefore the present invention is easy to assemble the guide vane supporting structure significantly.Obviously reduce the fixing construction expenditure of guide vane support in addition.
Be applicable to various forms of turbo machines according to guide vane supporting structure of the present invention, especially combustion gas and steam turbine.
Described this structure also can be used for fixing under the situation of axle labyrinth sealing, equalizing piston labyrinth sealing, central bottom or inner shell.
Claims (9)
1. the guide vane supporting structure that is used for fixing the guide vane support of turbo machine, comprise guide vane support (1) and be used for the maintenance body (2) of guide vane support (1), it is characterized in that, between guide vane support (1) and maintenance body (2), fixed element (3) is set like this, makes guide vane support (1) keep body (2) inner around fixed element (3) rotation.
2. guide vane supporting structure as claimed in claim 1, it is characterized in that, between guide vane support (1) and maintenance body (2), two height adjustment element (4) are set like this, make guide vane support (1) keep body (2) inside to move in the horizontal direction.
3. guide vane supporting structure as claimed in claim 1 or 2 is characterized in that, described fixed element (3) has running shaft (5), and guide vane support (1) can rotation around this running shaft.
4. as each described guide vane supporting structure in the above-mentioned claim, it is characterized in that, described fixed element (3) has two portions of scabbling (6 that are arranged in parallel, 7), they jointly form being connected of form fit like this with notch (8) in keeping body (2), guide vane support (1) is fixed on circumferencial direction (C) keeps in the body (2).
5. as each described guide vane supporting structure in the above-mentioned claim, it is characterized in that described height adjustment element (4) constitutes in the same manner with fixed element (3) basic structure, and has the tapped hole (9) that is used to adjust screw (10).
6. guide vane supporting structure as claimed in claim 5 is characterized in that, the longitudinal axis (L1) of described tapped hole (9) is vertical mutually with the longitudinal axis (L2) of running shaft (5).
7. as each described guide vane supporting structure in the above-mentioned claim, it is characterized in that described guide vane support (1) and maintenance body (2) difference double-body bike ground constitute with the form of lower member and upper-part.
8. guide vane supporting structure as claimed in claim 7 is characterized in that, described fixed element (3) and height adjustment element (4) are arranged on the lower member of guide vane support (1) and keep between the lower member of body (2).
9. one kind is used for adjusting as the guide vane support (1) of each described guide vane supporting structure structure of above-mentioned claim and the method for the radial clearance between the maintenance body (2), it is characterized in that,
-assembling fixing units (3) and height adjustment element (4) in guide vane support (1),
-installation guide vane support (1) and upward fixing in keeping body (2) by fixed element (3) at circumferencial direction (C),
-adjust radial clearance (R) by in height adjustment element (4), screwing in adjustment screw (10).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008033400.6 | 2008-07-16 | ||
| DE200810033400 DE102008033400B4 (en) | 2008-07-16 | 2008-07-16 | Leitschaufelträgeranordnung |
| PCT/EP2009/059161 WO2010007136A1 (en) | 2008-07-16 | 2009-07-16 | Guide vane support arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102159796A true CN102159796A (en) | 2011-08-17 |
| CN102159796B CN102159796B (en) | 2014-10-29 |
Family
ID=41119733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980136134.3A Expired - Fee Related CN102159796B (en) | 2008-07-16 | 2009-07-16 | Guide vane support arrangement |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2310637A1 (en) |
| JP (1) | JP5101735B2 (en) |
| CN (1) | CN102159796B (en) |
| DE (1) | DE102008033400B4 (en) |
| WO (1) | WO2010007136A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975886A (en) * | 2014-04-09 | 2015-10-14 | 阿尔斯通技术有限公司 | Vane carrier for compressor or turbine section of axial turbo machine |
| CN114102123A (en) * | 2020-08-25 | 2022-03-01 | 三菱动力株式会社 | Method for assembling or disassembling casing of steam turbine |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010034569A1 (en) | 2010-08-17 | 2012-02-23 | Siemens Aktiengesellschaft | Blade ring carrier arrangement for e.g. steam turbine, has cam bolt with threaded section that is screwed into screw thread of blade ring carrier and support unit, so that relative position between carrier and support unit is changeable |
| DE102014202744A1 (en) * | 2014-02-14 | 2015-08-20 | Siemens Aktiengesellschaft | Protection against erosion and erosion corrosion on webs of cast casings |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE726510C (en) * | 1940-01-25 | 1942-10-15 | Aeg | Carrying and centering device for guide wheels of steam or gas turbines divided into the parting line of the housing |
| US2862453A (en) * | 1954-04-01 | 1958-12-02 | Perry I Nagle | Adjustable pump support |
| US3427000A (en) * | 1966-11-14 | 1969-02-11 | Westinghouse Electric Corp | Axial flow turbine structure |
| US3628884A (en) * | 1970-06-26 | 1971-12-21 | Westinghouse Electric Corp | Method and apparatus for supporting an inner casing structure |
| US4204803A (en) * | 1978-07-21 | 1980-05-27 | General Electric Company | Diaphragm support |
| GB2050524B (en) * | 1979-06-06 | 1982-10-20 | Rolls Royce | Turbine stator shroud assembly |
| JPH1077803A (en) * | 1996-09-04 | 1998-03-24 | Mitsubishi Heavy Ind Ltd | Eccentric pin for positioning turbine blade ring |
| JPH10299411A (en) * | 1997-04-28 | 1998-11-10 | Toshiba Corp | Supporting device for steam turbine nozzle |
| US6244819B1 (en) * | 1998-11-10 | 2001-06-12 | Dresser-Rand Company | Adjustable supporting assembly for turbine flowpath components and method thereof |
| JP4326315B2 (en) * | 2003-12-08 | 2009-09-02 | 三菱重工業株式会社 | Wing ring structure |
| JP4801373B2 (en) * | 2005-05-16 | 2011-10-26 | 三菱重工業株式会社 | Turbine cabin structure |
-
2008
- 2008-07-16 DE DE200810033400 patent/DE102008033400B4/en not_active Expired - Fee Related
-
2009
- 2009-07-16 CN CN200980136134.3A patent/CN102159796B/en not_active Expired - Fee Related
- 2009-07-16 EP EP09780716A patent/EP2310637A1/en not_active Withdrawn
- 2009-07-16 WO PCT/EP2009/059161 patent/WO2010007136A1/en active Application Filing
- 2009-07-16 JP JP2011517935A patent/JP5101735B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975886A (en) * | 2014-04-09 | 2015-10-14 | 阿尔斯通技术有限公司 | Vane carrier for compressor or turbine section of axial turbo machine |
| CN114102123A (en) * | 2020-08-25 | 2022-03-01 | 三菱动力株式会社 | Method for assembling or disassembling casing of steam turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2310637A1 (en) | 2011-04-20 |
| JP5101735B2 (en) | 2012-12-19 |
| CN102159796B (en) | 2014-10-29 |
| DE102008033400B4 (en) | 2012-04-12 |
| JP2011528083A (en) | 2011-11-10 |
| WO2010007136A1 (en) | 2010-01-21 |
| DE102008033400A1 (en) | 2010-01-21 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150716 |
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| EXPY | Termination of patent right or utility model |