DE3534293C2 - - Google Patents
Info
- Publication number
- DE3534293C2 DE3534293C2 DE3534293A DE3534293A DE3534293C2 DE 3534293 C2 DE3534293 C2 DE 3534293C2 DE 3534293 A DE3534293 A DE 3534293A DE 3534293 A DE3534293 A DE 3534293A DE 3534293 C2 DE3534293 C2 DE 3534293C2
- Authority
- DE
- Germany
- Prior art keywords
- groove
- fiber
- composite material
- grooves
- fiber composite
- 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
- 239000000835 fiber Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
- B64C21/10—Influencing air flow over aircraft surfaces by affecting boundary layer flow using other surface properties, e.g. roughness
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/002—Influencing flow of fluids by influencing the boundary layer
- F15D1/0025—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply
- F15D1/003—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions
- F15D1/0035—Influencing flow of fluids by influencing the boundary layer using passive means, i.e. without external energy supply comprising surface features, e.g. indentations or protrusions in the form of riblets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C2230/00—Boundary layer controls
- B64C2230/26—Boundary layer controls by using rib lets or hydrophobic surfaces
-
- 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
- Y02T50/10—Drag reduction
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Reinforced Plastic Materials (AREA)
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853534293 DE3534293A1 (de) | 1985-09-26 | 1985-09-26 | Einrichtung zur verringerung des reibungswiderstandes |
| EP86113218A EP0216384B1 (de) | 1985-09-26 | 1986-09-25 | Einrichtung zur Verringerung des Reibungswiderstandes |
| US07/183,330 US4907765A (en) | 1985-09-26 | 1988-04-07 | Wall with a drag reducing surface and method for making such a wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19853534293 DE3534293A1 (de) | 1985-09-26 | 1985-09-26 | Einrichtung zur verringerung des reibungswiderstandes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3534293A1 DE3534293A1 (de) | 1987-04-02 |
| DE3534293C2 true DE3534293C2 (enExample) | 1992-09-17 |
Family
ID=6281978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19853534293 Granted DE3534293A1 (de) | 1985-09-26 | 1985-09-26 | Einrichtung zur verringerung des reibungswiderstandes |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4907765A (enExample) |
| EP (1) | EP0216384B1 (enExample) |
| DE (1) | DE3534293A1 (enExample) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4237307A1 (en) * | 1992-11-05 | 1993-04-08 | Voith Gmbh J M | Paper machine - in which outflow from the head-box is regulated to prevent distortion of the fibrous suspension |
| DE9316009U1 (de) * | 1993-10-20 | 1994-01-13 | Moser, Josef, 85435 Erding | Oberfläche eines fluidumströmten Körpers |
| DE19631537A1 (de) * | 1996-07-23 | 1998-01-29 | Okoe Charles Dipl Ing Fh | Rillenprofil zur verbesserten Gleitfähigkeit und Energieeinsparung bei verschiedenen Objekten im Wasser |
| EP1283163A2 (de) | 2001-08-10 | 2003-02-12 | Airbus Deutschland GmbH | Vorrichtung zur Verringerung des strömungsmechanischen Reibungswiderstandes |
| DE102004044655B4 (de) * | 2004-09-15 | 2009-06-10 | Airbus Deutschland Gmbh | Lackier-Vorrichtung, Lackier-Anordnung, Verfahren zum Lackieren einer gekrümmten Oberfläche eines Flugzeugs und Verwendung einer Inkjet-Einrichtung zum Lackieren eines Flugzeugs |
Families Citing this family (98)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5133516A (en) * | 1985-05-31 | 1992-07-28 | Minnesota Mining And Manufacturing Co. | Drag reduction article |
| US4986496A (en) * | 1985-05-31 | 1991-01-22 | Minnesota Mining And Manufacturing | Drag reduction article |
| US5386955A (en) * | 1986-05-22 | 1995-02-07 | Rolls-Royce Plc | Control of fluid flow |
| EP0246916B1 (en) * | 1986-05-22 | 1992-06-24 | ROLLS-ROYCE plc | Boundary layer flow control |
| GB8706554D0 (en) * | 1987-03-19 | 1987-04-23 | Rolls Royce Plc | Boundary layer devices |
| US4930729A (en) * | 1986-05-22 | 1990-06-05 | Rolls-Royce Plc | Control of fluid flow |
| DE3772448D1 (de) * | 1986-05-22 | 1991-10-02 | Rolls Royce Plc | Grenzschichtdurchflussregelung. |
| DE3762219D1 (de) * | 1986-05-22 | 1990-05-17 | Rolls Royce Plc | Fluessigkeitsdurchflussregelung. |
| US5114099A (en) * | 1990-06-04 | 1992-05-19 | W. L. Chow | Surface for low drag in turbulent flow |
| AU5016493A (en) * | 1992-08-18 | 1994-03-15 | Four Winds Energy Corporation | Wind turbine particularly suited for high-wind conditions |
| ES2064261B1 (es) * | 1993-02-25 | 1998-07-16 | Doria Iriarte Jose Javier | Fuselaje mejorado a fin de lograr efectos de estabilizacion de torbellinos. |
| DE4319628A1 (de) * | 1993-06-15 | 1994-12-22 | Klein Schanzlin & Becker Ag | Strukturierte Oberflächen von Strömungsmaschinenbauteilen |
| DE19613304A1 (de) * | 1996-04-03 | 1997-10-09 | Ernst Koelle | Oberflächenstruktur für die Außenhaut bewegter oder ruhender Körper, die einem Strömungsmedium ausgesetzt sind |
| FR2751049B1 (fr) | 1996-07-15 | 1998-09-18 | Inst Francais Du Petrole | Surface modifiee pour reduire les turbulences d'un fluide et procede de transport |
| DE19650439C1 (de) * | 1996-12-05 | 1998-03-12 | Deutsch Zentr Luft & Raumfahrt | Oberfläche für eine von einer eine Strömungshauptrichtung aufweisenden Strömung turbulent umströmten Wand |
| US5833389A (en) * | 1996-12-09 | 1998-11-10 | Orlev Scientific Computing Ltd. | Apparatus for controlling turbulence in boundary layer and other wall-bounded fluid flow fields |
| US5884871A (en) * | 1997-03-27 | 1999-03-23 | Boeing North American, Inc. | Use of absorbing walls for laminar flow control |
| DE19725251C2 (de) * | 1997-06-14 | 2000-07-13 | Voith Hydro Gmbh & Co Kg | Verfahren zum Herstellen eines Bauteiles für eine hydraulische Strömungsmaschine sowie ein danach hergestelltes Bauteil |
| US5988568A (en) * | 1997-09-22 | 1999-11-23 | Drews; Hilbert F. P. | Surface modification apparatus and method for decreasing the drag or retarding forces created by fluids flowing across a moving surface |
| DE19840303A1 (de) * | 1998-09-04 | 2000-03-09 | Brandhorst Ingo | Gezielte Erzeugung von Mikroturbolenzen zum Zwecke der Verminderung von Strömungsverlusten |
| US6303193B1 (en) * | 1998-11-05 | 2001-10-16 | General Electric Company | Process for fabricating a tool used in electrochemical machining |
| US6200439B1 (en) | 1998-11-05 | 2001-03-13 | General Electric Company | Tool for electrochemical machining |
| US6191496B1 (en) | 1998-12-01 | 2001-02-20 | Dillyn M. Elder | Wind turbine system |
| US6448669B1 (en) | 1998-12-01 | 2002-09-10 | Dillyn M. Elder | Water power generation system |
| NL1014924C2 (nl) * | 1999-07-30 | 2001-02-01 | Chromalloy Holland B V | Beperking van de luchtweerstand voor componenten van een gasturbine motor. |
| NL1012753C2 (nl) * | 1999-07-30 | 2001-02-01 | Chromalloy Holland B V | Beperking van de luchtweerstand voor componenten van een gasturbine motor |
| US6387242B1 (en) | 1999-08-16 | 2002-05-14 | General Electric Company | Method and tool for electrochemical machining |
| US6234752B1 (en) | 1999-08-16 | 2001-05-22 | General Electric Company | Method and tool for electrochemical machining |
| US6290461B1 (en) | 1999-08-16 | 2001-09-18 | General Electric Company | Method and tool for electrochemical machining |
| DE10012666A1 (de) * | 2000-03-15 | 2001-09-20 | Fhp Motors Gmbh | Pumpe, insbesondere Umwälzpumpe für Haushaltsmaschinen wie Wasch- und/oder Geschirrspülmaschinen |
| ES2195689B1 (es) * | 2000-07-26 | 2005-04-01 | Manuel Muñoz Saiz | Disposicion sustentadora para superficies laterales de aviones. |
| US6857604B2 (en) * | 2001-07-18 | 2005-02-22 | Eric T. Schmidt | Shock wave absorber |
| US6698684B1 (en) | 2002-01-30 | 2004-03-02 | Gulfstream Aerospace Corporation | Supersonic aircraft with spike for controlling and reducing sonic boom |
| CA2474552C (en) | 2002-01-30 | 2011-07-26 | Gulfstream Aerospace Corporation | Fuselage shaping and inclusion of spike on a supersonic aircraft for controlling and reducing sonic boom |
| DE10217111A1 (de) * | 2002-04-17 | 2003-11-06 | Roehm Gmbh | Festkörper mit mikrostrukturierter Oberfläche |
| EP1371813A1 (de) * | 2002-06-13 | 2003-12-17 | ALSTOM (Switzerland) Ltd | Beschaufelung für Strömungsmaschine |
| US7357351B2 (en) * | 2002-07-18 | 2008-04-15 | Eric T. Schmidt | Linear shock wave absorber |
| US6892989B1 (en) | 2003-05-29 | 2005-05-17 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method for reducing the drag of blunt-based vehicles by adaptively increasing forebody roughness |
| DE10357629A1 (de) * | 2003-12-10 | 2005-07-07 | Mtu Aero Engines Gmbh | Verfahren zur Strukturierung der Aerodynamik von Bauteilen in Fluggasturbinen |
| DE102004009755A1 (de) * | 2004-02-28 | 2005-09-15 | Mtu Aero Engines Gmbh | Gasturbinenschaufel |
| US20060068109A1 (en) | 2004-09-15 | 2006-03-30 | Airbus Deutschland Gmbh | Painting device, painting arrangement, method for painting a curved surface of an object, and use of an inkjet device for painting an aircraft |
| US20060251859A1 (en) * | 2005-05-05 | 2006-11-09 | D Urso Brian R | Friction drag-reducing surface |
| US20070018055A1 (en) * | 2005-07-11 | 2007-01-25 | Schmidt Eric T | Aerodynamically efficient surface |
| NL1029708C2 (nl) * | 2005-08-10 | 2007-02-13 | Kick Off Ltd | Turbulentiefolie. |
| US8333076B2 (en) | 2005-12-15 | 2012-12-18 | Gulfstream Aerospace Corporation | Isentropic compression inlet for supersonic aircraft |
| US8113469B2 (en) * | 2006-02-21 | 2012-02-14 | University Of Alabama | Passive micro-roughness array for drag modification |
| US20090065645A1 (en) * | 2007-02-05 | 2009-03-12 | United Technologies Corporation | Articles with reduced fluid dynamic drag |
| US8794574B2 (en) * | 2007-03-30 | 2014-08-05 | The Board Of Trustees Of The University Of Alabama | Micro-array surface for passive drag modification |
| NL1034178C2 (nl) * | 2007-07-24 | 2009-01-27 | Kick Off Ltd | Wrijvingsweerstand reducerende laag en werkwijze voor de vervaardiging daarvan. |
| NL1035216C2 (nl) | 2007-07-24 | 2009-01-27 | Kick Off Ltd | Wrijvingsweerstand reducerende laag en werkwijze voor de vervaardiging daarvan. |
| FR2921448A1 (fr) * | 2007-09-24 | 2009-03-27 | Snecma Sa | Procede de formation de reliefs pertubateurs de couche limite |
| US8393158B2 (en) | 2007-10-24 | 2013-03-12 | Gulfstream Aerospace Corporation | Low shock strength inlet |
| US20090210103A1 (en) * | 2007-12-03 | 2009-08-20 | Mr. Michael Cook | Controlling aircraft aerial movements, defeating icing on aircraft surfaces, aiding decontamination, and damping turbulence effects on aircraft by the method of micro-perforated airfoil coordinated precision flow management |
| BRPI0916664A2 (pt) * | 2008-08-05 | 2015-11-17 | Alcoa Inc | chapas e placas metálicas que têm superfícies texturizadas de redução de atrito e métodos para fabricar as mesmas |
| US8668166B2 (en) * | 2009-01-29 | 2014-03-11 | The Boeing Company | Shape memory riblets |
| US20100206038A1 (en) * | 2009-02-16 | 2010-08-19 | Santiago Vitagliano | Passive Turbulance Control Product for Minimizing Drag and Its Method of Manufacture |
| US8220754B2 (en) * | 2009-06-03 | 2012-07-17 | Lockheed Martin Corporation | Plasma enhanced riblet |
| FR2947313B1 (fr) * | 2009-06-26 | 2015-02-20 | Inst Francais Du Petrole | Systeme et methode de reduction de trainee comportant des surfaces structurees de forme evolutive |
| US20110186685A1 (en) * | 2010-02-02 | 2011-08-04 | The Boeing Company | Thin-Film Composite Having Drag-Reducing Riblets and Method of Making the Same |
| DE102010007570A1 (de) * | 2010-02-10 | 2011-08-11 | ThyssenKrupp Nirosta GmbH, 47807 | Produkt für strömungstechnische Anwendungen, Verfahren zu seiner Herstellung und Verwendung eines solchen Produkts |
| DE102011009998A1 (de) * | 2011-02-01 | 2012-08-02 | Airbus Operations Gmbh | Verfahren zur Herstellung eines Strömungskörpers mit einer Soll-Oberflächentexturierung und Laser-Materialabtragsvorrichtung |
| DE102011106763A1 (de) * | 2011-07-05 | 2013-01-10 | Eads Deutschland Gmbh | Verfahren zur Herstellung einer Oberfläche eines Bauteils mit reduziertem Luftströmungswiderstand und Bauteil mit reduziertem Luftströmungswiderstand |
| DE102011121054B4 (de) * | 2011-12-14 | 2024-08-08 | Airbus Operations Gmbh | Riblet-Struktur auf einer Strömungsfläche, Verfahren zum Herstellen einer Riblet-Struktur auf einer Strömungsfläche und Verwendung von Verstärkungselementen in Riblets für eine Strömungsfläche |
| GB2514214B (en) * | 2012-09-25 | 2015-04-22 | Messier Dowty Ltd | Aircraft component noise reducing patch |
| US10899045B2 (en) * | 2013-03-12 | 2021-01-26 | U.S.A. As Represented By The Administrator Of The National Aeronautics And Space Administration | High pressure soft lithography for micro-topographical patterning of molded polymers and composites |
| DE102013214075A1 (de) * | 2013-07-18 | 2015-01-22 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Gewebe mit Polymerschicht |
| CN103407210B (zh) * | 2013-08-02 | 2015-04-01 | 北京化工大学 | 一种高分子仿生减阻表面及其制备装置 |
| DE102013013817A1 (de) * | 2013-08-22 | 2015-02-26 | Airbus Defence and Space GmbH | Strukturbauteil mit einer Ribletoberfläche |
| DE202014104613U1 (de) * | 2014-04-09 | 2015-08-11 | Kuka Systems Gmbh | Applikator |
| US9308987B1 (en) | 2014-05-15 | 2016-04-12 | The Curators Of The University Of Missouri | Drag reduction utilizing driven micro-cavities |
| US20160243586A1 (en) * | 2014-08-01 | 2016-08-25 | The Boeing Company | Drag reduction riblets integrated in a paint layer |
| US10072511B2 (en) * | 2014-10-02 | 2018-09-11 | Rolls-Royce North American Technologies Inc. | Engine nacelle |
| CN104613056A (zh) * | 2015-01-21 | 2015-05-13 | 北京超微上达科技有限公司 | 一种人字形结构的仿生减阻表面 |
| US9482096B1 (en) * | 2015-04-28 | 2016-11-01 | The Boeing Company | Textured leading edge for aerospace and nautical structures |
| CA3001742C (en) * | 2015-10-13 | 2023-02-28 | Microtau Ip Pty Ltd | Microstructure patterns |
| US10569365B2 (en) * | 2015-11-23 | 2020-02-25 | The Boeing Company | Method for preparing a fluid flow surface |
| US10322436B2 (en) | 2016-10-06 | 2019-06-18 | Nano And Advanced Materials Institute Limited | Method of coating interior surfaces with riblets |
| US11156099B2 (en) | 2017-03-28 | 2021-10-26 | General Electric Company | Turbine engine airfoil with a modified leading edge |
| CN107605874B (zh) * | 2017-08-09 | 2019-11-15 | 浙江大学 | 一种抗空蚀微结构表面层 |
| FR3074546B1 (fr) * | 2017-12-05 | 2020-07-10 | Wind-It | Revetement propre a diminuer la trainee de l’ecoulement d’un fluide autour d’un element cylindrique |
| FR3076540B1 (fr) * | 2018-01-08 | 2021-04-16 | Airbus Operations Sas | Element aerodynamique d'un aeronef, pourvu d'un ensemble d'elements protuberants. |
| US11492923B2 (en) * | 2018-04-09 | 2022-11-08 | Gulfstream Aerospace Corporation | Ice shedding aircraft engine |
| US10900509B2 (en) * | 2019-01-07 | 2021-01-26 | Rolls-Royce Corporation | Surface modifications for improved film cooling |
| EA037061B1 (ru) * | 2019-01-25 | 2021-02-01 | Частное Учреждение "Назарбаев Университет Рисеч Энд Инновэйшн Систэм" | Лопасть рабочего колеса центробежного насоса |
| US11142830B2 (en) | 2019-02-08 | 2021-10-12 | The Boeing Company | Method of surface micro-texturing with a subtractive agent |
| US11136673B2 (en) * | 2019-02-08 | 2021-10-05 | The Boeing Company | Method of surface micro-texturing with a subtractive agent |
| DE102019119790A1 (de) * | 2019-07-22 | 2021-01-28 | 4Jet Microtech Gmbh | Laserbearbeitungsvorrichtung |
| US11614106B2 (en) | 2019-08-21 | 2023-03-28 | Lockheed Martin Corporation | Partially submerged periodic riblets |
| US12085102B2 (en) * | 2019-08-21 | 2024-09-10 | Lockheed Martin Corporation | Submerged periodic riblets |
| US12270424B2 (en) | 2019-08-21 | 2025-04-08 | Lockheed Martin Corporation | Staggered periodic riblets |
| KR102403823B1 (ko) * | 2019-12-13 | 2022-05-30 | 두산에너빌리티 주식회사 | 스트립이 형성된 배기 디퓨져의 스트롯 구조 및 가스터빈 |
| RU2757938C1 (ru) * | 2020-09-18 | 2021-10-25 | Федеральное государственное унитарное предприятие "Центральный аэрогидродинамический институт имени профессора Н.Е. Жуковского" (ФГУП "ЦАГИ") | Аэродинамический профиль крыла для околозвуковых скоростей |
| US20220241646A1 (en) * | 2021-02-02 | 2022-08-04 | Iron Warrior Llc | Smart training system |
| WO2022225897A1 (en) | 2021-04-20 | 2022-10-27 | Nikon Corporation | Systems and methods for measuring height properties of surfaces |
| RU2763634C1 (ru) * | 2021-04-28 | 2021-12-30 | федеральное государственное бюджетное образовательное учреждение высшего образования "Национальный исследовательский университет "МЭИ" (ФГБОУ ВО "НИУ "МЭИ") | Широкоугольные плоские, конические и осесимметричные кольцевые диффузоры |
| CN113404630B (zh) * | 2021-07-12 | 2022-09-02 | 武汉大学 | 一种水翼空化流动控制结构 |
| CN113983266A (zh) * | 2021-12-03 | 2022-01-28 | 中铁建电气化局集团第一工程有限公司 | 一种基于v型沟槽导流栅片的减阻弯头装置 |
| TWI871703B (zh) * | 2023-07-19 | 2025-02-01 | 宏碁股份有限公司 | 軸流散熱風扇 |
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| DE1923633A1 (de) * | 1969-05-09 | 1970-12-03 | Ursula Haenle | Grenzschichtbeeinflussung von aerodynamischen Wirkungskoerpern |
| CA1099435A (en) * | 1971-04-01 | 1981-04-14 | Gwendyline Y. Y. T. Chen | Photosensitive block copolymer composition and elements |
| US3902944A (en) * | 1974-02-14 | 1975-09-02 | Fiber Science Inc | Noncircular filament wound article of manufacture and method of making same |
| US4060016A (en) * | 1976-07-26 | 1977-11-29 | Gerber Garment Technology, Inc. | Method and apparatus for blanking out pattern pieces from a layup |
| SE7901244L (sv) * | 1979-02-13 | 1980-08-14 | Malmstroem Anders E H | Ytstruktur hos yta som ror sig i, ellerer utsatt for stromning av, vetska eller gas |
| DE2942183A1 (de) * | 1979-10-18 | 1981-05-07 | Basf Ag, 6700 Ludwigshafen | Fotopolymerisierbare gemische und elemente daraus |
| DE3137416A1 (de) * | 1981-09-19 | 1983-03-31 | Basf Ag, 6700 Ludwigshafen | Fotopolymerisierbare gemische und elemente daraus |
| DE3528135A1 (de) * | 1985-08-06 | 1987-04-02 | Messerschmitt Boelkow Blohm | Einrichtung zur verringerung des reibungswiderstandes |
| DE3621331A1 (de) * | 1986-06-26 | 1988-01-14 | Fraunhofer Ges Forschung | Mikroventil |
-
1985
- 1985-09-26 DE DE19853534293 patent/DE3534293A1/de active Granted
-
1986
- 1986-09-25 EP EP86113218A patent/EP0216384B1/de not_active Expired
-
1988
- 1988-04-07 US US07/183,330 patent/US4907765A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4237307A1 (en) * | 1992-11-05 | 1993-04-08 | Voith Gmbh J M | Paper machine - in which outflow from the head-box is regulated to prevent distortion of the fibrous suspension |
| DE9316009U1 (de) * | 1993-10-20 | 1994-01-13 | Moser, Josef, 85435 Erding | Oberfläche eines fluidumströmten Körpers |
| DE19631537A1 (de) * | 1996-07-23 | 1998-01-29 | Okoe Charles Dipl Ing Fh | Rillenprofil zur verbesserten Gleitfähigkeit und Energieeinsparung bei verschiedenen Objekten im Wasser |
| DE19631537C2 (de) * | 1996-07-23 | 1999-02-04 | Okoe Charles Dipl Ing Fh | Grenzschichtprofil für Flüssigkeiten und/oder Gase |
| EP1283163A2 (de) | 2001-08-10 | 2003-02-12 | Airbus Deutschland GmbH | Vorrichtung zur Verringerung des strömungsmechanischen Reibungswiderstandes |
| DE102004044655B4 (de) * | 2004-09-15 | 2009-06-10 | Airbus Deutschland Gmbh | Lackier-Vorrichtung, Lackier-Anordnung, Verfahren zum Lackieren einer gekrümmten Oberfläche eines Flugzeugs und Verwendung einer Inkjet-Einrichtung zum Lackieren eines Flugzeugs |
Also Published As
| Publication number | Publication date |
|---|---|
| US4907765A (en) | 1990-03-13 |
| EP0216384A3 (en) | 1987-11-25 |
| EP0216384B1 (de) | 1989-12-20 |
| DE3534293A1 (de) | 1987-04-02 |
| EP0216384A2 (de) | 1987-04-01 |
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