EP1951992A1 - Schaufel einer turbomaschine - Google Patents
Schaufel einer turbomaschineInfo
- Publication number
- EP1951992A1 EP1951992A1 EP06818058A EP06818058A EP1951992A1 EP 1951992 A1 EP1951992 A1 EP 1951992A1 EP 06818058 A EP06818058 A EP 06818058A EP 06818058 A EP06818058 A EP 06818058A EP 1951992 A1 EP1951992 A1 EP 1951992A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blade according
- region
- rotor
- contour
- blade
- 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.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 28
- 239000007769 metal material Substances 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000003562 lightweight material Substances 0.000 claims description 4
- 239000002356 single layer Substances 0.000 claims description 3
- 229910010038 TiAl Inorganic materials 0.000 claims description 2
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910000531 Co alloy Inorganic materials 0.000 claims 1
- 238000005253 cladding Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Classifications
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3084—Fixing blades to rotors; Blade roots ; Blade spacers the blades being made of ceramics
-
- 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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3092—Protective layers between blade root and rotor disc surfaces, e.g. anti-friction layers
-
- 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
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/4932—Turbomachine making
- Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/4932—Turbomachine making
- Y10T29/49323—Assembling fluid flow directing devices, e.g., stators, diaphragms, nozzles
Definitions
- the invention relates to a blade of a turbomachine, in particular a gas turbine, according to the Oberbergriff of claim 1.
- the most important materials used today for aircraft engines or other turbomachinery are titanium alloys, nickel alloys and high strength steels.
- the high strength steels are used for shaft parts, gear parts, compressor casings and turbine casings.
- Titanium alloys are typical materials for compressor parts.
- Nickel alloys are suitable for the hot turbine parts.
- Gas turbines typically include a plurality of rotating blades and a plurality of fixed vanes, the blades rotating together with a rotor, and wherein the blades and the vanes are enclosed by a stationary housing.
- To increase performance it is important to optimize all components and subsystems.
- To increase the efficiency of gas turbines it is desirable, in particular the blades and vanes easier, so run with less weight.
- light materials have a relatively low ductility and are also relatively brittle, which can be at high punctual loads, as they are common on blades, an overload and thus a failure of the materials or the blades set. Therefore, it is not possible in practice to manufacture the blades of lightweight materials, which ultimately the efficiency and thus the increase in performance is limited to gas turbines.
- the present invention based on the problem to provide a novel blade of a turbomachine.
- the or each attachment portion comprises a core region of a relatively brittle and relatively light material, which is embedded in a cladding region of a material having a relatively high ductility.
- the invention enables the use of lightweight and brittle materials for the production of blades.
- the core region of the attachment section of the blade is made of the lightweight and brittle material, wherein the core region is embedded in a cladding region which is made of a material with high ductility.
- FIG. 1 shows a schematic cross-section through a fastening section, designed as a blade root, of a blade according to the invention designed as a blade of a turbomachine, together with a rotor.
- FIG. 1 shows a cross-section through a blade root of a rotor blade. It should be noted at this point that the invention is not limited to use on rotating blades, but rather can also be used in an analogous manner on fixed guide vanes.
- FIG. 1 shows a schematic cross-section through a gas turbine blade attachment section 10 designed as a blade root, wherein the gas turbine blade attachment section 10 is positioned in a receiving section 11 of a rotor 12. In operation, the gas turbine blade rotates together with the rotor in the direction of the arrow 13 shown in FIG. 1.
- the attachment section 10 of the gas turbine blade has a fir-tree-shaped outer contour 14, an inner contour 15 of the receiving section 11 being in contact with the outer contour 14 of the fastening section. Section 10 is adjusted.
- the fir tree-shaped contoured attachment portion 10 has projections 16 which engage in correspondingly contoured recesses 17 of the receiving portion 11.
- the attachment section 10 of the gas turbine blade is formed from two functionally separate regions, namely a core region 18 and a surrounding region 19 surrounding the core region 18.
- the core region 18 is thus embedded in the encapsulation region 19.
- the core portion 18 of the mounting portion 10 is formed according to the invention of a relatively brittle and relatively lightweight material having a relatively low ductility.
- the core portion 18 may be formed of a ceramic material or of an intermetallic material. Then, when the core portion 18 is formed of an intermetallic material, it is preferably formed of a TiAl material.
- the wrapping area 19, in which the core area 18 is embedded, is formed according to the invention from a material with a relatively high ductility.
- the wrapping region 19 may be formed from a metallic material which is adapted to the metallic material of the rotor 12, that is to say has a similar but not identical material composition as the rotor.
- the cladding region 12 may be formed of a nickel-based alloy or a cobalt-base alloy.
- the wrapping region 19 may be formed from a MCrAlY material.
- the wrapping region 19 of the fixing section 10 can also be made of so-called aluminum bronze materials, preferably 4 to 8 wt .-% aluminum, 2 to 5 wt .-% chromium, 0 to 3.5 wt .-% iron and the balance copper exhibit.
- the wrapping area 19 is designed as a single-layer or single-layer.
- the wrapping region can also be designed as a multilayer or multilayer.
- the wrapping area 19 is made relatively thick and applied to a contour contour of the core area 18 which is not exactly contoured.
- the wrapping area 19 of the fixing portion 10 is machined such that the outer contour 14 thereof which defines the outer contour of the fixing portion 10 abuts the inner contour 15 of the receiving region 11 of the rotor 12 is adjusted.
- the core portion 18 of the mounting portion 10 which is formed of the relatively brittle and relatively lightweight material, have any contour.
- the wrapping area 19, which is formed from a metallic material can be adapted to the desired final contour by means of common machining methods.
- the core region 18 it is also possible for the core region 18 to already have an outer contour that has a final contour-precise contour, and is only reduced in terms of its dimensions by the thickness of the enveloping region 19.
- the wrapping region 19 is designed to be relatively thin, since in this case no machining of the shape of the final contour is required.
- the attachment section 10 is a blade root of a gas turbine blade.
- the invention is not limited to use on rotating blades, but the invention can also be used on fixed guide vanes.
- Such fixed vanes may have a plurality of hook-like, flange-like or peg-like attachment portions, and then preferably each attachment portion of the fixed vanes is formed as described with reference to FIG. 1 for a rotor blade.
- blades of turbomachines in particular of gas turbine aircraft engines, of relatively light and relatively brittle materials.
- core portions of the attachment portions formed of the relatively lightweight and relatively brittle material are embedded in cladding regions formed of materials having a relatively high ductility.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005054172A DE102005054172A1 (de) | 2005-11-14 | 2005-11-14 | Schaufel einer Turbomaschine |
| PCT/DE2006/001956 WO2007054075A1 (de) | 2005-11-14 | 2006-11-08 | Schaufel einer turbomaschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1951992A1 true EP1951992A1 (de) | 2008-08-06 |
Family
ID=37698303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06818058A Withdrawn EP1951992A1 (de) | 2005-11-14 | 2006-11-08 | Schaufel einer turbomaschine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8360717B2 (de) |
| EP (1) | EP1951992A1 (de) |
| DE (1) | DE102005054172A1 (de) |
| WO (1) | WO2007054075A1 (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2452515B (en) | 2007-09-06 | 2009-08-05 | Siemens Ag | Seal coating between rotor blade and rotor disk slot in gas turbine engine |
| DE102009030398A1 (de) * | 2009-06-25 | 2010-12-30 | Mtu Aero Engines Gmbh | Verfahren zum Herstellen und/oder Reparieren einer Schaufel für eine Strömungsmaschine |
| US8871297B2 (en) * | 2010-09-30 | 2014-10-28 | Barry Barnett | Method of applying a nanocrystalline coating to a gas turbine engine component |
| US9429029B2 (en) | 2010-09-30 | 2016-08-30 | Pratt & Whitney Canada Corp. | Gas turbine blade and method of protecting same |
| US9587645B2 (en) | 2010-09-30 | 2017-03-07 | Pratt & Whitney Canada Corp. | Airfoil blade |
| US9427835B2 (en) | 2012-02-29 | 2016-08-30 | Pratt & Whitney Canada Corp. | Nano-metal coated vane component for gas turbine engines and method of manufacturing same |
| EP2696033B1 (de) | 2012-08-10 | 2018-06-06 | MTU Aero Engines AG | Schaufelelement einer Strömungsmachine mit duktiler Ausgleichsschicht, zugehörige Strömungsmachine, Verfahren zur Herstellung des Schaufelelements und der Strömungsmachine |
| US9500083B2 (en) * | 2012-11-26 | 2016-11-22 | U.S. Department Of Energy | Apparatus and method to reduce wear and friction between CMC-to-metal attachment and interface |
| US11168566B2 (en) | 2016-12-05 | 2021-11-09 | MTU Aero Engines AG | Turbine blade comprising a cavity with wall surface discontinuities and process for the production thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0412397A1 (de) * | 1989-08-10 | 1991-02-13 | Siemens Aktiengesellschaft | Rheniumhaltige Schutzbeschichtung mit grosser Korrosions- und/oder Oxidationsbeständigkeit |
| US5413871A (en) * | 1993-02-25 | 1995-05-09 | General Electric Company | Thermal barrier coating system for titanium aluminides |
| US6270318B1 (en) * | 1999-12-20 | 2001-08-07 | United Technologies Corporation | Article having corrosion resistant coating |
| EP1306454A1 (de) * | 2001-10-24 | 2003-05-02 | Siemens Aktiengesellschaft | Rhenium enthaltende Schutzschicht zum Schutz eines Bauteils gegen Korrosion und Oxidation bei hohen Temperaturen |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE886676C (de) | 1940-09-15 | 1953-08-17 | Maschf Augsburg Nuernberg Ag | Befestigung von Turbinenschaufeln aus keramischem Werkstoff in einem keramischen Laufrad oder einem keramischen Leitkranz |
| CH423431A (de) | 1965-10-13 | 1966-10-31 | Licentia Gmbh | Verfahren zur Herstellung eines Strömungsmaschinenschaufelfusses und/oder dessen am Schaufelträger befindlichen Halterung |
| US4417854A (en) * | 1980-03-21 | 1983-11-29 | Rockwell International Corporation | Compliant interface for ceramic turbine blades |
| US5160243A (en) * | 1991-01-15 | 1992-11-03 | General Electric Company | Turbine blade wear protection system with multilayer shim |
| WO1996041068A1 (en) * | 1995-06-07 | 1996-12-19 | National Research Council Of Canada | Anti-fretting barrier |
| US6751863B2 (en) * | 2002-05-07 | 2004-06-22 | General Electric Company | Method for providing a rotating structure having a wire-arc-sprayed aluminum bronze protective coating thereon |
-
2005
- 2005-11-14 DE DE102005054172A patent/DE102005054172A1/de not_active Ceased
-
2006
- 2006-11-08 EP EP06818058A patent/EP1951992A1/de not_active Withdrawn
- 2006-11-08 US US12/093,584 patent/US8360717B2/en not_active Expired - Fee Related
- 2006-11-08 WO PCT/DE2006/001956 patent/WO2007054075A1/de not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0412397A1 (de) * | 1989-08-10 | 1991-02-13 | Siemens Aktiengesellschaft | Rheniumhaltige Schutzbeschichtung mit grosser Korrosions- und/oder Oxidationsbeständigkeit |
| US5413871A (en) * | 1993-02-25 | 1995-05-09 | General Electric Company | Thermal barrier coating system for titanium aluminides |
| US6270318B1 (en) * | 1999-12-20 | 2001-08-07 | United Technologies Corporation | Article having corrosion resistant coating |
| EP1306454A1 (de) * | 2001-10-24 | 2003-05-02 | Siemens Aktiengesellschaft | Rhenium enthaltende Schutzschicht zum Schutz eines Bauteils gegen Korrosion und Oxidation bei hohen Temperaturen |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2007054075A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005054172A1 (de) | 2007-05-16 |
| WO2007054075A1 (de) | 2007-05-18 |
| US20080298976A1 (en) | 2008-12-04 |
| US8360717B2 (en) | 2013-01-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20080527 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): DE FR GB |
|
| 17Q | First examination report despatched |
Effective date: 20090612 |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MTU AERO ENGINES GMBH |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MTU AERO ENGINES AG |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: F01D 9/04 20060101ALI20190916BHEP Ipc: F01D 5/30 20060101AFI20190916BHEP Ipc: F01D 25/00 20060101ALN20190916BHEP |
|
| INTG | Intention to grant announced |
Effective date: 20191010 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20200221 |