EP2580481A1 - Verfahren zur beeinflussung des strömungsverhaltens von ungsmaschinen, insbesondere gebläse- oder absaugvorrichtungen sowie zugehörige gebläse- oder absaugvorrichtung - Google Patents
Verfahren zur beeinflussung des strömungsverhaltens von ungsmaschinen, insbesondere gebläse- oder absaugvorrichtungen sowie zugehörige gebläse- oder absaugvorrichtungInfo
- Publication number
- EP2580481A1 EP2580481A1 EP11779568.2A EP11779568A EP2580481A1 EP 2580481 A1 EP2580481 A1 EP 2580481A1 EP 11779568 A EP11779568 A EP 11779568A EP 2580481 A1 EP2580481 A1 EP 2580481A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flow
- blower
- structured
- suction
- structuring
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000010079 rubber tapping Methods 0.000 claims description 14
- 230000000737 periodic effect Effects 0.000 claims description 7
- 230000001788 irregular Effects 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 4
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 235000019592 roughness Nutrition 0.000 description 9
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 241001456553 Chanodichthys dabryi Species 0.000 description 3
- 241000283082 Megaptera novaeangliae Species 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000013598 vector Substances 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 241001059810 Cantharellula umbonata Species 0.000 description 1
- 241000283153 Cetacea Species 0.000 description 1
- 241000283085 Megaptera Species 0.000 description 1
- 241001415849 Strigiformes Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010205 computational analysis Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
- F04D29/162—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of a centrifugal flow wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/422—Discharge tongues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/682—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid extraction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/684—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid injection
-
- 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
- F05D2250/00—Geometry
- F05D2250/10—Two-dimensional
- F05D2250/18—Two-dimensional patterned
- F05D2250/181—Two-dimensional patterned ridged
Definitions
- blower or suction devices for influencing the flow behavior of machines, in particular blower or suction devices and associated blower or suction device
- the invention relates to a method for influencing the flow behavior of turbomachines, in particular fan or suction devices according to the preamble of claim 1 and a fan or suction device according to the preamble of claim 8.
- a blower device may for example be formed as a centrifugal fan device, which comprises a drum rotor with a plurality of blades, wherein the blades are arranged concentrically to the axis of rotation of the drum rotor and thereby form, for example, a circular cylindrical envelope.
- a centrifugal fan device which comprises a drum rotor with a plurality of blades, wherein the blades are arranged concentrically to the axis of rotation of the drum rotor and thereby form, for example, a circular cylindrical envelope.
- the structure and operation of such a drum rotor are well known, for example, from the document DE1 16231.
- the polar of a profile are comparable with and without hump.
- the humps cause higher glide numbers at higher angles of attack, or allow higher
- Humpback whale profile investigated experimentally.
- the operation of a structured surface is based on the structuring of the flow in longitudinal vortices, in that the velocity in the boundary layer is also made uneven by the irregularities of the surfaces.
- Aircraft engine by means of notches is described for example in the document EP 2 050 929.
- the document DE 10 2007 055 507 is a so-called
- the oblique lip, ie the inclined tapping lip, of a drum rotor is, according to the document DE 10 2007 055 507, executed as a half tine (see Fig. 2a, b) or as a whole tine (see Fig. 14). This is, so to speak, the limiting case of a serrated or wavy tapping lip, where there is only one point.
- Turbomachines in particular blower or suction to improve.
- the object is achieved on the basis of the features of the preamble of claim 1 and 8 respectively by their characterizing features.
- An essential idea which is the basis of the invention is that, at least in those surface regions of the turbomachine in which the flow is detached from the surface and / or turbulent flows occur, longitudinal swirls are generated by means of a structured surface section, via which the flow is structured.
- longitudinal swirls are generated by means of a structured surface section, via which the flow is structured.
- Turbomachines are significantly improved, in particular a significant improvement in the flow at the tap and / or the blades of a fan or suction, are achieved at the Ausblaskante a suction device or an airfoil.
- the dimensioning of the structured surface area is among others of the respective
- At least two flows having different ones are formed by a structured surface section
- the tapping lip of a blower and suction device with a drum rotor is further advantageously provided with a structured surface portion, which, for example, designed as a kind of serrations, wavy line or hump arrangement is. This advantageously achieves a reduction of the noise and generation of longitudinal vortices, by way of which the flow in the region of the tapping lip can be stabilized.
- the blades of the drum rotor at least partially jagged, wavy or bumpy or structured comparable formed by means of roughness, bumps or beadings.
- Angle of attack significantly improved.
- a smooth, ie unstructured or only very slightly structured surface is advantageously used.
- Structuring at the entrance may be used instead of or in combination with the usual
- Torsion, inclination, V-position or sweep of the blades are applied.
- the structuring is oriented in the direction of the flow direction and / or designed to guide the flow in a predetermined flow direction.
- the concrete execution of the structuring can be determined and implemented by means of sine functions, Fourier and other series developments, splines, etc. It can also be a structuring using freehand lines.
- blower or suction device an increase in the detection effect is possible when using the method according to the invention.
- Extracting device in "Coanda technique” the blowing takes place, for example via a Coanda tube, whereby a structuring of the tube is carried out for this purpose Increase the entrainment of the pollutant flow In extreme cases, the structuring of the surface runs from the exhaust opening to the exhaust opening.
- the suction at the trailing edge of a corrugated wing can be an improved method of boundary layer extraction. In this case, preferably in valleys, so in areas where the longitudinal vortices rotate away from the surface, sucked.
- Fig. 1 by way of example a plan view of an inventively structured
- FIG. 2 shows by way of example a section through the structured surface section according to FIG. 1;
- FIG. 3 shows an example of several side views of the blades of a turbomachine
- FIG. 4 shows a section through the axis of rotation of the impeller of FIG. 4
- FIG. 5 shows an example of a cross section through the spiral housing of a
- FIG. 6 shows by way of example a side view of the spiral housing according to FIG. 5; 7 shows, by way of example, the cross-sectional profile of a tapping lip with a structured surface section;
- Fig. 1 1 by way of example a combination of differently structured
- Fig. 12 by way of example a perspective view of a wing with structured
- Fig. 13 by way of example a corrugated airfoil
- FIG. 14 shows, by way of example, a drum rotor with blades with at least partially curved surface slants
- Fig. 15 shows an example of a side view of the spiral housing without drum rotor
- Fig. 1 6 shows an example of a side view of the centrally cut spiral housing without drum rotor
- Fig. 1 by way of example a perspective view of the cut
- Fig. 18 example aft an oblique view of the spiral housing
- FIG. 21 shows by way of example a perspective view of the suction device according to FIG.
- FIG. 1 shows, by way of example, a surface section 10 of a perspective view structured according to the invention.
- the structured surface portion 10 forms a plurality of projections 20 on a leading edge 30.
- Surface portion 10 is preferably carried out wavy and is in valleys 50th
- leading edge 30 extends, for example, perpendicular to the mean flow direction of the flow 60 or closes with this an obtuse angle.
- Surface section 10 causes a faster flow 70 in the valleys 50 and a slower flow 80 in the region of the ridges 40, i. At least two flows 70, 80 are generated at different flow rates.
- the flow 70 is leading in the valleys 50, whereas the flow 80 remains on the ridges 40.
- the faster flow 70 tears the surrounding slower flow 80 with it, creating longitudinal vortices 90.
- the resulting longitudinal vortices 90 can be taken in particular from the sectional view along the line A-A.
- FIG. 2 shows the cut surface 120 through the structured surface section 10.
- the cut surface 120 runs approximately perpendicular to the flow 60.
- the designation 1 10 designates the wavy line that arises when the structured surface section 10 intersects the cut surface 120.
- FIG. 3 shows the blades of an example single-flow turbomachine, for example the blades of a drum rotor. The flow takes place
- Denoted by 240 is a section through the unstructured part of the sheet metal blade. The valleys of
- Structuring are shown as dashed lines 40 and the ridges as solid lines 50.
- the gradients of the structuring 100, 105, 205 also bent.
- the curves 105, 205 also change along the blade depth.
- the structuring 200 is rectilinear. In the blades 260, 290, the distances between the
- Blade 300 is intended to represent constant or almost constant distances between the structuring, ie periodic or almost periodic structuring.
- Such blades are made by drum runners from a sheet material, in particular stamped.
- a blade made of sheet metal with relatively narrow valleys 40 is designated by the symbol 300.
- the front and / or rear edge is, for example, jagged 310 and / or straight 320 formed. This applies to both the unstructured surface portion and the structured surface portion of the blades of the drum rotor.
- FIG. 4 the flow conditions in the flow through the impeller 180 of a drum rotor are shown in a Thomasdarstetlung example. Shown is an axis-parallel section through the center line 160 of the drum rotor.
- the flow 150 flows through the blades 1 30, 140.
- the one blade 130 has, for example straight edges and a straight structuring 200, whereas another blade 140 has a wavy inflow edge and an oblique, curved, i. does not have rectilinear structuring 205.
- the blade 1 30 is completely structured. It can also be seen in particular from FIG. 4 that a plurality of blades 130, 140 with different structuring can be used in an impeller of a drum rotor.
- Figure 5 shows the spiral housing of a drum rotor 330 from the suction port of the impeller 340 ago.
- the spiral housing is cut centrally, along the line BB.
- three blades 350 of the impeller 340 are shown, which are located opposite the tapping lip 360.
- the housing channel widens as a jump diffuser 370 toward the outlet opening 380.
- dashed line 440 of the wall profile at a hollowed hump 450 indicated. This is explained in more detail in the description passage relating to FIG.
- FIG. 6 shows a plan view of the outlet cross section 380.
- the tapping lip is realized in the form of a spiral lip 410.
- the course of the spiral lip 410 is wavy or serrated.
- the symbol 390 designates the center line of the spiral housing 330.
- the spiral lip 410 extends as a slightly bent line 405.
- the line 405 is drawn above the line 410.
- the structuring is in the present embodiment, a wavy version 410 with valleys 50 and ridges 40th
- FIG. 7 An irregular profile 420 of a tapping lip is shown in FIG. 7, which shows
- Figure 8 shows a section 480 of the spiral housing 330 in the region of the tap, in two variants.
- a section through a tooth-shaped projection 450 of the spiral lip 360 is shown, such as a section along the line BB of Figure 6.
- the wall course 435 not hollowed out to the wall in the jump diffuser 500 out.
- the wall course 440 is hollowed out to the course of the wall in the jump diffuser 500.
- the profiling 460 creates a round transition between
- FIG. 9 again shows in a spatial representation a structured spiral tapping with a massive projection 510 and a hollow, approximately centrally cut-back projection 5.
- the tapping divides the inflow space 520 from the outflow space 530.
- the dotted line 540 is an axis-parallel straight line. At this line, two flow vectors 550, 560 are shown at different axial positions. The flow 550 flows into the outflow 530, the flow 560 in the
- a plan on two axial sections is marked 570,580.
- a massive tap shows the cut 580. This is the normal case described above. It can be a massive spiral tongue or a massive hump.
- the oblique lip fall, ie a hollow tap, is represented by the cut 570 through a hollowed out hump.
- FIG. 10 shows various structuring possibilities on surfaces, middle part
- Beading 590, roughness 600 and serrated 610 Beading 590, roughness 600 and serrated 610.
- FIG. 11 shows that these structuring possibilities can be provided both on the edges 620 and on the surface 630.
- the structuring on the surface is preferably aligned in the direction of the flow 640
- FIG. 12 shows, by way of example, an aerofoil 650 with structuring which is shown in FIG. 12
- Root area 660 has roughness changes 670 of the surface near the separation point. These are formed in the middle region of the wing 680 in the vicinity of the trailing edge 690 in the form of waves 700 and in the region of the wing tip 710 a continuous structuring 720 is realized. An influence on the boundary layer within the structured regions can take place via a suction at the trailing edge 690, by suction via hole lines 730, individual holes 735, via slots 740, 745 or via a porous field 750. Likewise, other forms of boundary layer control can be used instead of suction.
- Boundary layer control in general, symbolized here as ellipse 470, takes place on preferably in the area of the valleys 50 or in the areas between the roughnesses 55 instead. These smooth regions 55 between the roughnesses could also be referred to as roughness valleys.
- Slits 745 for boundary layer control by means of suction can run in wing longitudinal direction or perpendicular to the flow 640 near or at the trailing edge 690.
- the slots 740 can also run parallel to the convergence lines or to the talllines 50, 55.
- Structuring makes sense in the root area 660 and in the middle area 680 of a wing, especially in conjunction with boundary layer control.
- Figure 1 3 shows a wavy profile in which both the surface 770 and the edges 780 are corrugated.
- the Grenz Mrsabsaugung can be done via a perforated box 790 or 745 740 slots. It is essential that the suction is based on the direction of the ridges 40 and valleys 50, which is the orientation of the longitudinal vortices 760 in FIG.
- Boundary layer influence are located in the valleys. However, there may also be cases where an arrangement of boundary layer control agents, e.g. the slots 745, 740, makes sense in the burrs.
- Figure 14 shows as an example of construction the impeller of a drum rotor 810 with sections of corrugated blades 820.
- the blades 820 are corrugated in the outlet opening of a spiral housing and the corrugation extends approximately over at least one third of the width of the blades 820.
- Figure 1 5 shows a side view of the volute casing 840 of a drum rotor.
- the outlet side is marked 870.
- the region of the tap is denoted by the symbol 830.
- FIG. 16 shows a plan view of the centrally cut-open housing according to FIG. 1. Only the serrated region of the tapping lip, ie the row of serrations 850, are shown in full width for clarity.
- Figure 1 7 shows the volute casing 840 as a view of the Ausblasseite 870.
- the abbreviation 850 is turn the Serrated series.
- FIG. 18 shows an oblique view of the spiral housing 840 and the row of teeth 850.
- FIG. 20 shows a section of a suction device, which is supported by means of blow-out 900 above a surface 910.
- the outflow slot 920 is connected to a pressure chamber 930.
- 940 designates the suction or filter surface and 950 the
- this suction device is shown in a perspective view, wherein in the left half of the drawing, the embodiment according to the prior art is shown.
- the right half of the drawing shows a structured, wavy one
- outflow slot 920 also have a wavy structuring 925 or holes 960 by Ausström be replaced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010023017A DE102010023017A1 (de) | 2010-06-08 | 2010-06-08 | Buckelwalgebläse, Verfahren zur örtlichen Verbesserung der Strömung bei Strömungsmaschinen und Fahrzeugen |
PCT/DE2011/001599 WO2012062249A1 (de) | 2010-06-08 | 2011-06-08 | Verfahren zur beeinflussung des strömungsverhaltens von ungsmaschinen, insbesondere gebläse- oder absaugvorrichtungen sowie zugehörige gebläse- oder absaugvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2580481A1 true EP2580481A1 (de) | 2013-04-17 |
Family
ID=44913144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11779568.2A Withdrawn EP2580481A1 (de) | 2010-06-08 | 2011-06-08 | Verfahren zur beeinflussung des strömungsverhaltens von ungsmaschinen, insbesondere gebläse- oder absaugvorrichtungen sowie zugehörige gebläse- oder absaugvorrichtung |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2580481A1 (de) |
DE (1) | DE102010023017A1 (de) |
WO (1) | WO2012062249A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2502061A (en) * | 2012-05-14 | 2013-11-20 | Caterpillar Inc | Turbocharger with tubercles on the nozzle ring vanes |
JP5929522B2 (ja) * | 2012-05-31 | 2016-06-08 | 株式会社デンソー | 軸流送風機 |
AU2013302323A1 (en) * | 2012-08-16 | 2015-04-02 | Adelaide Research & Innovation Pty Ltd | Improved wing configuration |
GB2507493B (en) * | 2012-10-30 | 2015-07-15 | Solyvent Flakt Ab | Air movement fans |
DE102014115286A1 (de) | 2013-10-21 | 2015-04-23 | Georg Emanuel Koppenwallner | Abzugsvorrichtung, insbesondere Dunstabzugsvorrichtung |
JP2016166558A (ja) * | 2015-03-09 | 2016-09-15 | 株式会社デンソー | 送風機 |
GB201602895D0 (en) | 2016-02-19 | 2016-04-06 | Rolls Royce Plc | Aerofoil |
US20180187908A1 (en) * | 2017-01-04 | 2018-07-05 | Johnson Controls Technology Company | Blower housing with fluted outlet |
DE102017101680A1 (de) | 2017-01-27 | 2018-08-02 | Ellergon Antriebstechnik Gesellschaft M.B.H. | Hydrofoil für ein Wasserfahrzeug |
DE102017212231A1 (de) * | 2017-07-18 | 2019-01-24 | Ziehl-Abegg Se | Flügel für das Laufrad eines Ventilators, Laufrad sowie Axialventilator, Diagonalventilator oder Radialventilator |
DE102017221096A1 (de) | 2017-11-24 | 2019-05-29 | Ziehl-Abegg Se | Verfahren und Bewertungseinheit zum Ermitteln der Restlebensdauer eines Kondensators sowie System |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE116231C (de) | ||||
US2238749A (en) * | 1939-01-30 | 1941-04-15 | Clarence B Swift | Fan blade |
DE1081181B (de) | 1957-06-18 | 1960-05-05 | Bruno Eck Dr Ing | Blechschaufel fuer Zentrifugalgeblaese, vorwiegend fuer Trommellaeufer |
US3481531A (en) * | 1968-03-07 | 1969-12-02 | United Aircraft Canada | Impeller boundary layer control device |
JPH0264300A (ja) * | 1988-08-31 | 1990-03-05 | Hitachi Ltd | フアン用ブレード |
DE9013099U1 (de) * | 1990-09-14 | 1991-11-07 | Moser, Josef, 8058 Pretzen | Rotor |
US5169290A (en) | 1991-11-07 | 1992-12-08 | Carrier Corporation | Blade for centrifugal flow fan |
JP3203308B2 (ja) * | 1996-09-09 | 2001-08-27 | 三菱電機株式会社 | 軸流送風機 |
WO2000004439A1 (de) | 1998-07-17 | 2000-01-27 | Siemens Aktiengesellschaft | Zeicheneingabe mit vorschaufenster |
DE19911850B4 (de) | 1999-03-17 | 2010-04-08 | Röhl-Hager, Hannelore | Verfahren und Vorrichtung zum Eingrenzen, Erfassen und Absaugen von Schadstoffen, insbesondere bei Dunstabzugshauben |
US6431498B1 (en) | 2000-06-30 | 2002-08-13 | Philip Watts | Scalloped wing leading edge |
DE10300621B4 (de) | 2003-01-10 | 2008-08-21 | Georg Emanuel Koppenwallner | Strahlantriebsverfahren z.B. für ein Segelflugzeug |
US20060060721A1 (en) | 2004-03-30 | 2006-03-23 | Phillip Watts | Scalloped leading edge advancements |
EP2050929B1 (de) | 2004-06-02 | 2009-10-21 | Rolls-Royce Deutschland Ltd & Co KG | Verdichterschaufel, insbesondere für den Fan von Flugzeugtriebwerken |
RU2294300C2 (ru) | 2005-03-22 | 2007-02-27 | Институт теоретической и прикладной механики СО РАН (ИТПМ СО РАН) | Несущая поверхность |
JP4017003B2 (ja) * | 2005-09-30 | 2007-12-05 | ダイキン工業株式会社 | 遠心ファン及びこれを用いた空気調和機 |
DE102007039635A1 (de) | 2007-03-20 | 2008-09-25 | BSH Bosch und Siemens Hausgeräte GmbH | Dunstabzugshaube |
SI22636A (sl) * | 2007-10-24 | 2009-04-30 | Hidria Rotomatika D.O.O. | Lopatica aksialnega ventilatorja z valovito tlaäśno in sesalno povrĺ ino |
DE102007055507A1 (de) | 2007-11-21 | 2009-06-04 | Georg Emanuel Koppenwallner | Schräglippenspirale |
DE202009003490U1 (de) * | 2009-03-13 | 2009-06-25 | Listan Asia Inc., Gueishan | Lüftermodul sowie Lüfterschaufelgruppe zur Strömungsführung hierfür |
-
2010
- 2010-06-08 DE DE102010023017A patent/DE102010023017A1/de not_active Withdrawn
-
2011
- 2011-06-08 WO PCT/DE2011/001599 patent/WO2012062249A1/de active Application Filing
- 2011-06-08 EP EP11779568.2A patent/EP2580481A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO2012062249A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2012062249A1 (de) | 2012-05-18 |
DE102010023017A1 (de) | 2011-12-08 |
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