EP1616101A1 - L fter - Google Patents
L fterInfo
- Publication number
- EP1616101A1 EP1616101A1 EP04727247A EP04727247A EP1616101A1 EP 1616101 A1 EP1616101 A1 EP 1616101A1 EP 04727247 A EP04727247 A EP 04727247A EP 04727247 A EP04727247 A EP 04727247A EP 1616101 A1 EP1616101 A1 EP 1616101A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan
- blades
- edge
- fan according
- radially outer
- 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
Links
- 230000007704 transition Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002699 waste material Substances 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
- F04D29/08—Sealings
- F04D29/16—Sealings between pressure and suction sides
- F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
- F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/38—Blades
- F04D29/384—Blades characterised by form
-
- 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
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/307—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the tip of a rotor blade
Definitions
- the invention relates to a fan with an air conveying channel and a fan wheel arranged rotatably therein, the blades of which are provided in the region of their outer edges with flow elements which are low-resistance for the conveying flow and for the compensating flows which run around the outer edges of the blades from the pressure side to the suction side to be an obstacle.
- a fan with such flow elements is known from DE 30 17 226 A by the applicant.
- This laid-open document shows various designs of such flow elements in connection with stamped fan blades made of sheet metal. These flow elements reduce the waste flow in a fan equipped with it.
- this object is achieved by a fan according to claim 1.
- the fan noise surprisingly decreases, particularly in the so-called laminar range, that is to say with high delivery volumes and a relatively small pressure increase ⁇ p .
- a noise reduction of this kind also occurs in the non-laminar area, that is to say with higher back pressures and smaller amounts of air.
- a theoretical explanation could be that there is air flow along the crescent leading edges of the fan blades, and this air flow practically flows here to the outer periphery of the hub, where the peripheral speed is the lowest and consequently little noise is generated by this flow.
- the extent of the sickling is limited by the fact that the axial length of such a fan could become too great with a very pronounced sickle shape.
- FIG. 1 is a plan view of a device fan, here an axial fan, according to a first embodiment of the invention
- FIG. 2 is an illustration of the fan wheel in the fan of FIG. 1, in an enlarged view
- FIGS. 1 and 2 show a spatial representation of the fan wheel according to FIGS. 1 and 2,
- FIGS. 1 to 3 are side views of the fan wheel of FIGS. 1 to 3,
- FIG. 6 shows a sagittal section through a wing of the fan of FIGS. 1 to 5, seen along the line VI-VI of FIG. 2,
- FIG. 8 shows a section analogous to FIG. 7, seen along the line VIII-VIII of FIG. 2,
- FIG. 9 is a section analogous to FIG. 7, seen along the line IX-IX of FIG. 2,
- Fig. 10 is a representation of sound pressure level Lp and pressure increase ⁇ p over the
- Fig. 11 is a representation analogous to Fig. 10 for a fan of the same type, but in which the fan blades on their outer edge with special Flow elements are provided,
- Fig. 12 is an illustration showing the curves of Figs. 10 and 11 in comparison; it can be seen that in this exemplary embodiment a reduction in the sound pressure level Lp is obtained, particularly pronounced in the laminar but also in the turbulent range,
- FIG. 13 is a plan view analogous to FIG. 2 of a fan wheel 122 according to a second embodiment of the invention.
- FIG. 14 shows a spatial representation of the fan wheel 122 of FIG. 13 in a representation analogous to FIG. 3,
- FIG. 15 shows a comparison which shows the fan characteristic curves for the fan wheel 122 according to FIGS. 13 and 14 with and without the special flow elements (winglets).
- FIG. 1 shows a device fan 10 of a conventional type.
- the present invention can be implemented with an axial fan and a diagonal fan.
- the fan 10 shown in Fig. 1 has an outer housing 12, at the four corners of which fastening openings 14 are provided and which defines an air delivery channel 16 in its interior, which is delimited on the outside by a rotating surface 17 and in which the central one via webs 18
- Hub 20 of a fan wheel 22 is rotatably mounted, which is rotated in operation by an electric motor arranged within this hub 20 about a central axis 25 (FIGS. 4 and 5). 1, the hub 20 rotates counterclockwise in the direction of an arrow 24.
- the air flow is such that the air is blown out via the webs 18, that is to say through the rear of the fan 10, based on FIG. 1.
- five fan blades 26, which are designated by 26A to 26E, are fastened on the outer circumference 27 of the hub 20.
- the angular distance beta from the leading edge 28A of the fan blade 26A to the leading edge 28B of the blade 26B is 74 ° in this embodiment.
- the wings 26 are distributed unevenly around the circumference of the hub in order to obtain a more comfortable frequency spectrum. Naturally, the type of distribution shown is only a preferred embodiment.
- the front edges 28A to 28E of the wings 26 are concave and sickle-shaped.
- the rear edges of the wings 26 are designated 36A to 36E and are convex. They are designed so that their cut with the webs 18 is “grinding", that is to say “with a grinding cut”. This means that in most or all of the rotational positions and seen in plan view, the imaginary cut between a web 18 and a rear edge 36 (which of course do not touch) takes place at an angle, such as e.g. Fig. 1 clearly shows. This measure contributes to noise reduction.
- the radially outer edges of the wings 26 are designated 40A to 40E. As shown in FIG. 5, these edges 40 have a radial distance d from the inside 17 of the outer housing 12. This “air gap” d should be as small as possible. If it is large, a considerable loss flow flows through it from the pressure side to the suction side of the fan 10.
- the individual blades 26 are provided in the region of their radially outer edges 40 with flow elements 42A to 42E, namely with widenings of the outer blade edges 40, which preferably extend in the axial direction to the suction side and to the pressure side. (For diagonal fans, it is preferred to use blades in which such flow elements are only on the suction side.)
- the wings 26 have approximately the cross-sectional shape of an aircraft wing, i.e. the leading edge 28C is round and relatively blunt. From there, the thickness D of a wing 26 first increases and then decreases towards the rear edge 36, and the wing 26 tapers at the rear edge 36 in order to reduce or avoid the formation of eddies and the resulting noises there ,
- the flow elements 42 have a similar course as the associated wing, cf. Fig. 6, ie they are also tapered on the rear edge 36 and are on the
- the front edge 28 is rounded, and in the intermediate region 48 between the region of the front edge 28 and the region of the rear edge 36 they protrude beyond the wing 26 in the axial direction by a substantially constant amount, as is clearly shown in FIGS. 5 and 6.
- a smooth transition is provided at both ends, ie the constant amount there slides to 0.
- the flow elements 42 in conjunction with the narrow air gap d (FIG. 5), form an increased resistance to the loss flow which, in operation, runs around the outer edge 40 of the blades 26 from the pressure side to the suction side.
- the individual wings 26 are tortuous, i.e. the location where a wing 26 grows out of the hub 20, so to speak, is approximately in the form of a threaded section, and likewise the outer edges 40 of the wings 26 are shaped in the manner of a threaded section, but, as shown, the pitch of the threaded sections is greater in the area of the hub 20 than in the area of the radially outer edges 40.
- FIG. 11 shows the curves for the described exemplary embodiment, ie the fan is the same as in FIG. 10, but the fan wheel 22 is provided with the described flow elements 42.
- the course of the pressure curve ( ⁇ p2) is the same as in FIG. 10, but the sound pressure level Lp2 is reduced by approximately 1.5 ... 2 dB (A), especially in the region of larger throttle openings (approximately from 1100 upwards).
- the flow elements 42 described thus result in a reduction in the sound pressure level Lp which is acoustically perceptible and whose height depends on the operating point at which the fan 10 in question is operated without any additional effort.
- the crimping of the leading edges 28 also contributes to noise reduction.
- FIG. 13 and 14 show a fan wheel 122 according to a second, particularly preferred exemplary embodiment of the invention with a central hub 120.
- the outer housing of this fan wheel has the same shape as the outer housing 12 of FIG. 1 and is therefore not shown again.
- the direction of rotation is designated 124, i.e. the fan wheel 122 rotates clockwise.
- 14 shows a view of the suction side of the fan wheel 122.
- five fan blades 126 which are denoted by 126A to 126E, are fastened on the outer circumference 127 of the hub 120. As in the first exemplary embodiment, these are distributed unevenly on the circumference 127 of the hub 120 in order to obtain a pleasant frequency spectrum of the fan noises.
- the leading edges 128A to 128E of the wings 126 are concave and strongly crescent-shaped.
- the outer end 130A to 130E of the sickles 128, viewed in the direction of rotation 124 lies in front of the transition point 132A to 132E of the sickles 128 in the hub 120, these transition points 132A to 132E, in a particularly preferred manner, based on the Direction of rotation 124, are at the very back, ie the entire sickle 128 extends, as shown, from this transition point 132 in the direction of rotation to the front.
- This angle alpha is greater than 90 °, for example in FIGS. 1 to 12. It should preferably be ⁇ 90 ° and has preferred values between 70 and 90 °, in particular between 75 and 85 °.
- the outer end 30A to 30E of the sickles 28 is in each case on the same radius vector as the inner end 32A to 32E, which results in an axially shorter construction, but for the noise reduction is less favorable than the version according to FIGS. 13 to 15, as can be seen from a comparison of the measurement curves according to FIGS. 12 and 15.
- the rear edges of the wings 126A to 126E are designated 136A to 136E and are also curved more crescent-like than in the version according to FIGS. 1 to 12. Their cut with the webs 18 of the housing 12 is also carried out "with a grinding cut", as in FIG 1 to 12 described in detail.
- FIGS. 13 to 15 a form of the outer housing is used for the version according to FIGS. 13 to 15, in which the webs 18 run in mirror image to FIG. 1.
- the web 18 extends from an outer location, which would correspond to approximately 6 o'clock in the case of a clock, to an inner location, which corresponds to approximately 8 o'clock.
- this web 18 would run from an outer location, which corresponds to approximately 6 o'clock, to an inner location, which corresponds to approximately 4 o'clock. This results in the abovementioned “grinding cut” for the fan wheels of FIGS. 13 and 14.
- the outer radial edges of wings 126 are labeled 140A through 140E. 5, these edges 140 have a small radial distance d from the inside of the fan housing 12. A leakage flow flows from the pressure side to the suction side of the fan through the gap formed here.
- the individual vanes 126 are provided in the region of their radially outer edges 140 with flow elements 142A to 142E which extend in the axial direction between the suction side and the pressure side.
- the shape of the flow elements 142 results very well from the illustration according to FIG. 14, which in particular shows the flow element 142D and a part of the flow element 1420 very well.
- the course of the flow elements 142 is the same as that described in detail in FIG. 6 for the flow element 420, and the same applies to the profile of the wings 126, so that for this part reference can be made to the description of FIGS. 1 to 12.
- the flow elements 142 form an increased resistance for the loss flow, which in operation runs around the outer edge 140 of the wings 126 from the pressure side to the suction side.
- the individual wings 126 are tortuous, i.e. the location where a wing 126 grows out of the hub 120, so to speak, is approximately in the form of a threaded section, and likewise the outer edges 140 of the vanes 126 are approximately in the form of a threaded section, but, as shown, the thread pitch in the region of FIG Hub 120 is larger than in the area of the radially outer edges 140.
- FIG. 15 shows, in comparison, fan characteristic curves for the fan wheel 122 without flow elements and the fan wheel 122 with the flow elements 142, with the same air gap d (as in the illustrations for FIGS. 1 to 12).
- the pressure increase for a fan wheel without flow elements 142 is denoted by ⁇ p3
- the pressure increase for the same fan wheel 122 with the flow elements 142 is denoted by ⁇ p4. It can be seen that without the flow elements 142 there is a slightly larger pressure increase ⁇ p.
- the sound pressure level for a fan wheel without flow elements is designated Lp3, and the sound pressure level for the same fan wheel 122 with the elements 142 with Lp4.
- the measuring microphone was located in front of the suction side of the fan at the height of the fan.
- a measurement of the sound power LWA in the version according to FIGS. 13 to 15 has shown that, particularly in the range of the third octave center frequencies of 5 to 20 kHz, the flow elements were able to reduce the sound power.
- the sound power levels differ only slightly in the range from 160 to 4000 Hz, i.e. the flow elements 42 and 142 in particular reduce the noise.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20306455 | 2003-04-19 | ||
PCT/EP2004/003916 WO2004094835A1 (de) | 2003-04-19 | 2004-04-14 | Lüfter |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1616101A1 true EP1616101A1 (de) | 2006-01-18 |
EP1616101B1 EP1616101B1 (de) | 2011-03-16 |
EP1616101B2 EP1616101B2 (de) | 2016-06-15 |
Family
ID=32520322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04727247.1A Expired - Lifetime EP1616101B2 (de) | 2003-04-19 | 2004-04-14 | Lüfter |
Country Status (5)
Country | Link |
---|---|
US (1) | US7438522B2 (de) |
EP (1) | EP1616101B2 (de) |
AT (1) | ATE502217T1 (de) |
DE (3) | DE102004017727A1 (de) |
WO (1) | WO2004094835A1 (de) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5259919B2 (ja) * | 2005-07-21 | 2013-08-07 | ダイキン工業株式会社 | 軸流ファン |
EP1801422B1 (de) * | 2005-12-22 | 2013-06-12 | Ziehl-Abegg AG | Ventilator und Ventilatorflügel |
EP1801421A1 (de) * | 2005-12-22 | 2007-06-27 | Ziehl-Abegg AG | Ventilator and Ventilatorflügel |
US20070154315A1 (en) * | 2006-01-05 | 2007-07-05 | Bucher John C | Ceiling fan with high efficiency ceiling fan blades |
US20090263254A1 (en) * | 2006-01-05 | 2009-10-22 | Bucher John C | Ceiling Fan With High Efficiency Ceiling Fan Blades |
TWI370876B (en) * | 2006-01-23 | 2012-08-21 | Delta Electronics Inc | Fan and impeller thereof |
JP4872722B2 (ja) * | 2007-03-12 | 2012-02-08 | ソニー株式会社 | 軸流ファン装置、軸流羽根車及び電子機器 |
NL2004352C2 (en) | 2010-03-05 | 2011-09-06 | Book Factory Systems B V | Small batch book production. |
DE102011015784A1 (de) | 2010-08-12 | 2012-02-16 | Ziehl-Abegg Ag | Ventilator |
DE202011004708U1 (de) | 2010-08-12 | 2011-07-14 | Ziehl-Abegg Ag | Ventilator |
DE102010034604A1 (de) | 2010-08-13 | 2012-02-16 | Ziehl-Abegg Ag | Flügelrad für einen Ventilator |
CN102536897B (zh) * | 2010-12-29 | 2015-04-22 | 台达电子工业股份有限公司 | 风扇及其叶轮 |
TWI443262B (zh) * | 2010-12-29 | 2014-07-01 | Delta Electronics Inc | 風扇及其葉輪 |
WO2013060358A1 (de) * | 2011-10-25 | 2013-05-02 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Axialventilatorrad |
DE102012004617A1 (de) | 2012-03-06 | 2013-09-12 | Ziehl-Abegg Ag | Axialventilator |
US10087764B2 (en) | 2012-03-08 | 2018-10-02 | Pratt & Whitney Canada Corp. | Airfoil for gas turbine engine |
CN102748327A (zh) * | 2012-07-31 | 2012-10-24 | 洛瓦空气工程(上海)有限公司 | 带镰刀形前弯叶片的轴流风机叶轮装置 |
US9404511B2 (en) * | 2013-03-13 | 2016-08-02 | Robert Bosch Gmbh | Free-tipped axial fan assembly with a thicker blade tip |
DE102014102311A1 (de) * | 2014-02-21 | 2015-08-27 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Lüfter mit einem mit Laufschaufeln versehenen Laufrad |
EP3239533A1 (de) | 2016-04-29 | 2017-11-01 | STEINBEIS GMBH & CO. Für TECHNOLOGIETRANSFER | Axiale turbomaschine |
US10527057B2 (en) | 2017-09-12 | 2020-01-07 | Delta Electronics, Inc. | Fan module |
US11142038B2 (en) | 2017-12-18 | 2021-10-12 | Carrier Corporation | Labyrinth seal for fan assembly |
JP6426869B1 (ja) * | 2018-06-08 | 2018-11-21 | 株式会社グローバルエナジー | 横軸ロータ |
GB2575297B (en) * | 2018-07-05 | 2021-05-19 | Dyson Technology Ltd | An axial impeller |
USD972706S1 (en) * | 2019-02-28 | 2022-12-13 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Ventilating fan |
DE102019105355B4 (de) * | 2019-03-04 | 2024-04-25 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Lüfterrad eines Axialventilators |
USD972707S1 (en) * | 2019-04-29 | 2022-12-13 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Ventilating fan |
CN115126708A (zh) * | 2021-03-26 | 2022-09-30 | 全亿大科技(佛山)有限公司 | 叶轮及散热风扇 |
US11754088B2 (en) * | 2021-12-03 | 2023-09-12 | Hamilton Sundstrand Corporation | Fan impeller with thin blades |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2405050A1 (de) | 1974-02-02 | 1975-08-07 | Motoren Turbinen Union | Laufschaufeln fuer turbomaschinen |
DE3217085A1 (de) | 1982-05-07 | 1983-11-10 | Maschinenfabrik Korfmann Gmbh, 5810 Witten | Ventilatorfluegel an einem ventilator |
JPH05141394A (ja) | 1991-11-18 | 1993-06-08 | Matsushita Seiko Co Ltd | 軸流フアン |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1518501A (en) * | 1923-07-24 | 1924-12-09 | Gill Propeller Company Ltd | Screw propeller or the like |
DE2017226A1 (de) | 1970-04-10 | 1971-10-21 | Usinger W | Preßluftmotor |
DE3017226A1 (de) | 1979-05-12 | 1980-11-20 | Papst Motoren Kg | Ventilatorlaufrad |
US4358245A (en) | 1980-09-18 | 1982-11-09 | Bolt Beranek And Newman Inc. | Low noise fan |
KR870009140A (ko) † | 1986-03-28 | 1987-10-23 | 구자학 | 선풍기 프로펠러 |
DE4127134B4 (de) | 1991-08-15 | 2004-07-08 | Papst Licensing Gmbh & Co. Kg | Diagonallüfter |
DE69228189T2 (de) * | 1991-08-30 | 1999-06-17 | Airflow Research & Mfg. Corp., Watertown, Mass. | Ventilator mit vorwärtsgekrümmten schaufeln und angepasster schaufelkrümmung und -anstellung |
US5181830A (en) * | 1991-11-21 | 1993-01-26 | Chou Rudy S | Blade for axial flow fan |
DE4140987A1 (de) | 1991-12-12 | 1993-06-17 | Behr Gmbh & Co | Axialluefter |
US5393199A (en) | 1992-07-22 | 1995-02-28 | Valeo Thermique Moteur | Fan having a blade structure for reducing noise |
US5769607A (en) * | 1997-02-04 | 1998-06-23 | Itt Automotive Electrical Systems, Inc. | High-pumping, high-efficiency fan with forward-swept blades |
US6361945B1 (en) * | 1998-07-02 | 2002-03-26 | Gen-Probe Incorporated | Molecular torches |
IT1304683B1 (it) | 1998-10-08 | 2001-03-28 | Gate Spa | Convogliatore d'aria per un elettroventilatore, particolarmente per ilradiatore di un autoveicolo. |
JP2000314394A (ja) † | 1999-04-30 | 2000-11-14 | Denso Corp | 送風機 |
TW446144U (en) | 1999-09-03 | 2001-07-11 | Delta Electronics Inc | Improved fan blade |
KR20030017993A (ko) * | 2000-06-16 | 2003-03-04 | 로버트 보쉬 코포레이션 | 블레이드 선단에 일치하는 플레어형 보호판 및 팬을구비한 자동차의 팬 조립체 |
DE20014150U1 (de) | 2000-08-16 | 2000-11-16 | RP Technik GmbH Profilsysteme, 58739 Wickede | Thermisch isolierendes Fassadensystem zur Verkleidung eines Gebäudes |
US6517315B2 (en) | 2001-05-29 | 2003-02-11 | Hewlett-Packard Company | Enhanced performance fan with the use of winglets |
US20030012653A1 (en) | 2001-07-13 | 2003-01-16 | Guy Diemunsch | Cooling fan |
US6626640B2 (en) * | 2001-11-19 | 2003-09-30 | Durmitor Inc. | Fan with reduced noise |
TW585227U (en) | 2001-12-31 | 2004-04-21 | Asia Vital Components Co Ltd | Improved structure for fan blade |
-
2004
- 2004-04-10 DE DE200410017727 patent/DE102004017727A1/de not_active Withdrawn
- 2004-04-10 DE DE202004005548U patent/DE202004005548U1/de not_active Expired - Lifetime
- 2004-04-14 WO PCT/EP2004/003916 patent/WO2004094835A1/de active Application Filing
- 2004-04-14 US US10/553,496 patent/US7438522B2/en not_active Expired - Lifetime
- 2004-04-14 EP EP04727247.1A patent/EP1616101B2/de not_active Expired - Lifetime
- 2004-04-14 DE DE502004012310T patent/DE502004012310D1/de not_active Expired - Lifetime
- 2004-04-14 AT AT04727247T patent/ATE502217T1/de active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2405050A1 (de) | 1974-02-02 | 1975-08-07 | Motoren Turbinen Union | Laufschaufeln fuer turbomaschinen |
DE3217085A1 (de) | 1982-05-07 | 1983-11-10 | Maschinenfabrik Korfmann Gmbh, 5810 Witten | Ventilatorfluegel an einem ventilator |
JPH05141394A (ja) | 1991-11-18 | 1993-06-08 | Matsushita Seiko Co Ltd | 軸流フアン |
Non-Patent Citations (1)
Title |
---|
ANONYMOUS: "Wiki: Profil (Strömungslehre)", WAPEDIA, pages 1 - 3, XP003021193, Retrieved from the Internet <URL:http://wapedia.mobi/de/profil> |
Also Published As
Publication number | Publication date |
---|---|
US7438522B2 (en) | 2008-10-21 |
EP1616101B1 (de) | 2011-03-16 |
DE102004017727A1 (de) | 2004-11-04 |
EP1616101B2 (de) | 2016-06-15 |
ATE502217T1 (de) | 2011-04-15 |
WO2004094835A1 (de) | 2004-11-04 |
DE202004005548U1 (de) | 2004-06-17 |
US20060210397A1 (en) | 2006-09-21 |
DE502004012310D1 (de) | 2011-04-28 |
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