EP2904277B1 - Strömungsgleichrichter für einen axiallüfter - Google Patents

Strömungsgleichrichter für einen axiallüfter Download PDF

Info

Publication number
EP2904277B1
EP2904277B1 EP13765661.7A EP13765661A EP2904277B1 EP 2904277 B1 EP2904277 B1 EP 2904277B1 EP 13765661 A EP13765661 A EP 13765661A EP 2904277 B1 EP2904277 B1 EP 2904277B1
Authority
EP
European Patent Office
Prior art keywords
air guide
ring
air
guide blades
rings
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.)
Active
Application number
EP13765661.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2904277A2 (de
Inventor
Thomas Heli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebm Papst Mulfingen GmbH and Co KG
Original Assignee
Ebm Papst Mulfingen GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ebm Papst Mulfingen GmbH and Co KG filed Critical Ebm Papst Mulfingen GmbH and Co KG
Publication of EP2904277A2 publication Critical patent/EP2904277A2/de
Application granted granted Critical
Publication of EP2904277B1 publication Critical patent/EP2904277B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • 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
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F04D29/544—Blade shapes
    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps

Definitions

  • the present invention relates to a flow straightener for an axial fan according to claim 1.
  • Such a flow straightener is an air guide element which is arranged with its air guide vanes directly behind an axial fan in order to redirect the air set in flow by the axial fan impeller into a flow which is as axial and uniform as possible.
  • Such an air guide element is often also referred to as a "guide vane”.
  • Axial fans are used, for example, in evaporators in cold rooms, where the cold air is distributed through the axial fan into the cold room via the heat exchanger.
  • the cold air is transported as far into the room as possible in order to also cool the chilled goods at a location further away.
  • This requires an axial fan that provides the highest possible volume flow with a large throw.
  • Throw distance is understood to mean a distance up to which a limit speed of the air flow is maintained. Due to the swirling outflow of an axial fan, this throw distance is limited.
  • a downstream flow straightener which converts the twist back into a uniform axial flow, the throw distance can be significantly increased. It is important that the flow straightener has a has the lowest possible flow resistance, so that there is only an insignificant drop in pressure in the amount of air flowing through it.
  • a flow straightener of the type mentioned, which basically meets the above requirements, is from DE 44 04 262 A1 known.
  • a reduction in swirl of the flow medium is achieved in particular in that the air guide vanes, viewed in the circumferential direction, each run curved to the axial direction between an inflow-side vane edge and an outflow-side vane edge.
  • one of the blade edges specifically the edge on the front side of the stator blade, has a variable height in the radial direction. It is straight and runs inclined to the center axis of the impeller. Any effect associated with this embodiment is not described.
  • U.S. 2005/0186070 A1 discloses a fan assembly having an impeller mounted on the rotor of a motor.
  • the impeller is of a casing surrounded, wherein the housing comprises a arranged downstream of the impeller flow straightener.
  • the blades of the flow straightener have a constant height in the radial direction.
  • the present invention is based on the object of creating a flow straightener of the type mentioned at the outset, with which the disadvantages mentioned above can be overcome with a high volume flow and large throw distance.
  • the blade edge of the air guide blade which has the height changing in the radial direction, has a curvature.
  • the inflow angle of the vanes can be selected in such a way that it essentially corresponds to the outflow angle of the axial fan, and the outflow angle of the vanes can be such be chosen that the blade in this area is designed parallel to an air conveying direction running in the direction of the longitudinal axis.
  • the respective inflow angles of the air guide vanes can all be the same size in the different rings, or alternatively vary from ring to ring, in particular depending on the outflow profile of the flow medium emerging from the fan.
  • the rectifier according to the invention By choosing a corresponding number of rings with air guide vanes, the number of air guide vanes themselves and, alternatively or additionally, also preferably by an effective height of the blading, i.e. the arrangement of the air guide vanes, of the rectifier according to the invention, it can be achieved that the rectifier according to the invention also has a function as protection against accidental contact.
  • An additional protective grille can therefore be dispensed with because the openings between the rim walls and the air guide vanes can be designed so small or, in particular, the axial length of the rectifier can be designed so large that it is not possible to reach through with the hand or individual fingers to the rotating impeller is. This ensures a safe distance from a rotating impeller of the axial fan.
  • the number of air guide vanes decreases from the outer rims to the inner rims in order in this way to be able to realize an approximately equal distance between the respective vanes of a row in each rim and thus to achieve the lowest possible flow resistance.
  • the flow straightener according to the invention can be constructed in one piece, preferably as an injection-molded part made of plastic, in a manner that is not very complex in terms of production technology. It can advantageously be designed in such a way that it can subsequently be releasably mounted on a wall ring or on a protective or support grid of an already existing fan.
  • the fastening can be designed in such a way that the flow straightener can be removed from the fan in just a few movements and easily cleaned, for example in a dishwasher.
  • One of the blade edges in particular the edge on the rear side of the air guide blade, has a variable height in the radial direction.
  • the blade end directed in the outflow direction has an edge which does not run straight but which—particularly to minimize noise—is provided with a radius.
  • a third ring can be drawn in concentrically between two blade rings, which forms a transition between the two rings by being reduced in its axial length and thus adjoining the curved blade end.
  • Each second bladed ring can thus have a reduced axial length compared to the other rings arranged next to it.
  • a flow straightener 1 according to the invention is intended to be used in combination with an axial fan 2 .
  • This can be done in particular where optimal air distribution in a cold room is crucial in complex cooling applications, where the entire refrigerated goods must be evenly circulated with circulated air.
  • the advantage of using a flow straightener 1 according to the invention in a cooling room consists in particular in the fact that it can provide a strong, bundled air flow with a large throw distance in cooperation with the axial fan 2 .
  • the axial fan 2 can be designed in particular as a so-called wall ring fan and can comprise a wall ring 2a with a support grid 2b, in which a fan unit 2c is held.
  • the fan unit 2c has a motor, in particular an external rotor motor, the rotor of which is integrated directly into an axial impeller in a preferred embodiment.
  • the support grid 3 of the axial fan 2 used to hold the fan unit 2c can be designed with a wide mesh, since it does not have to fulfill the function of protection against accidental contact, because this is taken over by the flow straightener 1 .
  • a flow straightener 1 according to the invention has - this show next Figures 1 and 2 also Figures 3 to 5 -
  • Each ring 4a, 4b, 4c, 4d, 4e is delimited radially on the inside and outside by a cylindrical outer surface. Only in 3 In this regard, an inner lateral surface of the middle ring 4d is given the reference number 5 and the outer lateral surface of the middle ring 4d lying opposite it is given the reference number 6.
  • each ring 4a, 4b, 4c, 4d, 4e there is a plurality of circumferentially distributed around a longitudinal axis XX of the flow straightener 1 and arranged essentially radially, each between the lateral surfaces 5, 6 of the rings 4a, 4b, 4c, 4d , 4e running air guide vanes 7.
  • the air guide vanes 7 run at the same time - for this purpose, the rim 4c shown in section in 3 referred - each starting from an inflow-side blade edge 7a and ending in an outflow-side blade edge 7b, viewed in the circumferential direction, curved relative to the axis direction XX.
  • the inflow angle ⁇ Z of the air to the air guide vane 7 is how 6 1, defined as the acute angle between a tangent T Z applied to the leading blade edge 7a and the longitudinal axis XX. It can preferably be in the range of 20° ⁇ ⁇ Z ⁇ 80°.
  • the outflow angle ⁇ A is defined in the same way with a tangent T A applied to the outflow-side blade edge 7b and preferably has the value of 0°.
  • the inflow angle ⁇ Z can be the same on all air guide vanes 7 in a ring 4a, 4b, 4c, 4d, 4e, but differ from the respective inflow angle ⁇ Z of the air on the air guide vanes 7 in another ring 4a, 4b, 4c , 4d, 4e differ.
  • the inflow angle ⁇ Z can be varied depending on the outflow profile of the air emerging from the axial fan 2 from ring 4a, 4b, 4c, 4d, 4e to ring 4a, 4b, 4c, 4d, 4e.
  • the respective inflow angle ⁇ Z of the air is the same on all air guide vanes 7 .
  • a flow straightener 1 according to the invention can also be designed with a very stable honeycomb structure, the strength of which is additionally increased if--as shown and in particular in FIG 4 denoted by reference symbols - the inflow-side blade edges 7a and the outflow-side blade edges 7b of the air guide vanes 7 are arranged in adjacent rings 4a, 4b, 4c, 4d, 4e with a circumferential offset V relative to one another.
  • the respective distances A, in which the air guide vanes 7 are arranged in relation to one another can preferably each be of the same size. In 4 in this regard, the distance A between two adjacent edges 7a on the inflow side is specified as such an example.
  • the number of air guide vanes 7 themselves and alternatively or additionally also preferably by the total height H of the blading (cf. Figures 6 and 7 ), by which the axial length L of the flow straightener 1 according to the invention is significantly influenced, it can be achieved that the flow straightener 1 according to the invention also assumes a function as protection against accidental contact.
  • Another preferred feature of the flow straightener 1 according to the invention is that in the radial sequence of the rings 4a, 4b, 4c, 4d, 4e with the air guide vanes 7, the rings 4a, 4b, 4c, 4d, 4e each have different, in particular two, alternating heights have H1, H2. Between two rows of blades (rings 4a, 4c, 4e) with a peripherally greater height H1 of the blades, which decreases radially inward over the width of the rings 4a, 4c, 4e, a ring (rings 4b, 4d) is drawn in concentrically, the peripheral is reduced in its height H2, whereby the blade height over the rim width B then increases again radially inwards.
  • the total axial length L of the flow straightener 1 according to the invention is reduced in an optimal manner.
  • the course of the radial curvature R2 of the outflow-side blade edges 7b of the air guide vanes 7, through which the variable height in the radial direction is preferably set on each blade, can run in mirror image in adjacent rings 4a, 4b, 4c, 4d, 4e.
  • a bulging of the contour caused by the curvature R2 of the blade edge 7a is present radially outwards, follows in the adjacent ring 4d, which is delimited radially on the outside by the wall with the smaller height H2 and radially on the inside by a wall with a greater height H1, a bulging caused by the curvature R2 of the contour of the Blade edge 7a - in relation to the wall between the rims 4c, 4d mirror-inverted to the curvature R2 in the adjacent rim 4c - radially inwards.
  • this structural design can counteract back-turbulence of the flowing air, since this is guided up to the greater height H1, forming a laminar boundary layer on the air guide vanes 7.
  • the base body 3 of a flow straightener 1 according to the invention can preferably be designed in one piece and preferably as an injection molded part made of plastic, but a multi-part design, optionally also made of a metallic material, is also within the scope of the invention.
  • the base body 3 fasteners 8, 9 for releasable attachment to the axial fan 2, in particular z.
  • B latching means 8 for connection to the wall ring 2a associated with this fan 2 and/or fastening openings 9 for the passage of screws 10 serving for screwing to the fan 2.
  • a connecting or covering section 11 for the axial fan 2 can also be provided on a flow straightener 1 according to the invention, as illustrated, which also determines the axial length in an increasing manner and is therefore to be designed with as short a length as possible.
  • the total height H of the blading can optimally be in a range from 25 mm to 100 mm, which preferably corresponds to a size in the range from 5 percent to 40 percent of the size of the outside diameter of the axial fan wheel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP13765661.7A 2012-10-08 2013-08-27 Strömungsgleichrichter für einen axiallüfter Active EP2904277B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012109542.6A DE102012109542A1 (de) 2012-10-08 2012-10-08 "Strömungsgleichrichter für einen Axiallüfter"
PCT/EP2013/067691 WO2014056657A2 (de) 2012-10-08 2013-08-27 Strömungsgleichrichter für einen axiallüfter

Publications (2)

Publication Number Publication Date
EP2904277A2 EP2904277A2 (de) 2015-08-12
EP2904277B1 true EP2904277B1 (de) 2023-06-14

Family

ID=49226122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13765661.7A Active EP2904277B1 (de) 2012-10-08 2013-08-27 Strömungsgleichrichter für einen axiallüfter

Country Status (5)

Country Link
US (1) US10094394B2 (zh)
EP (1) EP2904277B1 (zh)
CN (1) CN104685220B (zh)
DE (1) DE102012109542A1 (zh)
WO (1) WO2014056657A2 (zh)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10041619B2 (en) 2012-07-12 2018-08-07 Trane International Inc. Methods and apparatuses to moderate an airflow
DE102012109546A1 (de) * 2012-10-08 2014-04-10 Ebm-Papst Mulfingen Gmbh & Co. Kg "Wandring für einen Axialventilator"
US10233941B2 (en) * 2013-07-12 2019-03-19 United Technologies Corporation Plastic variable inlet guide vane
KR102249794B1 (ko) * 2013-12-05 2021-05-07 엘지전자 주식회사 공기조화기의 실외기
GB2539131B (en) * 2014-03-27 2018-11-28 Trane Int Inc Diffuser collar for a condenser fan in an HVAC system
DE202015101513U1 (de) 2015-03-25 2015-04-23 Ebm-Papst Mulfingen Gmbh & Co. Kg Leitradkonzept
DE102015205424A1 (de) 2015-03-25 2016-09-29 Ebm-Papst Mulfingen Gmbh & Co. Kg Nachleitrad
EP3168544B1 (de) 2015-11-12 2018-05-02 InVENTer GmbH Belüftungsvorrichtung
USD802113S1 (en) * 2015-12-04 2017-11-07 Ebm-Papst Mulfingen Gmbh & Co. Kg Axial fan
US10578126B2 (en) * 2016-04-26 2020-03-03 Acme Engineering And Manufacturing Corp. Low sound tubeaxial fan
WO2017192651A1 (en) * 2016-05-03 2017-11-09 Carrier Corporation Vane axial fan with intermediate flow control rings
USD846108S1 (en) * 2016-05-27 2019-04-16 Hongzheng Ruan Vane damper
DE102016007205A1 (de) * 2016-06-08 2017-12-14 Ziehl-Abegg Se Ventilatoreinheit
DE102016115616A1 (de) * 2016-08-23 2018-03-01 Ebm-Papst Mulfingen Gmbh & Co. Kg Strömungsgleichrichter eines Ventilators
DE202016105863U1 (de) 2016-10-19 2016-11-10 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator mit Ventilatorrad und Leitrad
DE102016119916A1 (de) 2016-10-19 2018-04-19 Ebm-Papst Mulfingen Gmbh & Co. Kg Ventilator mit Ventilatorrad und Leitrad
DE102017114034A1 (de) * 2017-06-23 2018-12-27 Oliver Schmitz Wärmespeicherelement für dezentrale Raumbelüftungsanlagen mit Axiallüfter, Wärmespeicheranordnung sowie dezentrale Raumbelüftungsanlage
JP6747469B2 (ja) * 2017-07-25 2020-08-26 株式会社デンソー 車両用空調ユニット
US11473596B2 (en) 2017-07-31 2022-10-18 Trane International Inc. Combined secondary inlet bell and flow grid for a centrifugal fan or centrifugal compressor
WO2019052806A1 (de) 2017-09-12 2019-03-21 Dressler Group GmbH & Co. KG Verfahren und vorrichtung zur thermischen verrundung bzw. sphäronisierung von pulverförmigen kunststoffpartikeln
USD905223S1 (en) * 2018-10-12 2020-12-15 Ebm-Papst Mulfingen Gmbh & Co. Kg Axial fan for transportation
WO2020079789A1 (ja) * 2018-10-17 2020-04-23 バルミューダ株式会社 空気清浄装置
JP2020109258A (ja) * 2018-12-28 2020-07-16 日本電産株式会社 送風装置
KR20210050349A (ko) * 2019-10-28 2021-05-07 삼성전자주식회사 디퓨저, 디퓨저 조립체 및 이를 구비한 공기조화기
KR20210114300A (ko) * 2020-03-10 2021-09-23 엘지전자 주식회사 에어 서큘레이터
DE102022210553A1 (de) 2022-10-06 2024-04-11 Ziehl-Abegg Se Nachleiteinrichtung für einen Ventilator und Ventilator mit einer Nachleiteinrichtung
DE102022134377A1 (de) * 2022-12-21 2024-06-27 Ebm-Papst Mulfingen Gmbh & Co. Kg Strömungsleitvorrichtung und Ventilatoreinheit mit der Strömungsleitvorrichtung
US12006950B1 (en) 2023-06-13 2024-06-11 Delta Electronics, Inc. Combination structure of fan guard and static blades

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060147304A1 (en) * 2003-07-01 2006-07-06 Kyungseok Cho Guide blade of axial-flow fan shroud

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1762358A (en) 1927-05-20 1930-06-10 Westinghouse Electric & Mfg Co Propeller-type blower
US2100994A (en) * 1936-02-06 1937-11-30 Casco Products Corp Fan guard
US4692091A (en) 1985-09-23 1987-09-08 Ritenour Paul E Low noise fan
EP0387987A3 (en) * 1989-03-13 1990-11-28 General Motors Corporation Stabilizer ring for a fan-mounting apparatus
DE4404262A1 (de) 1994-02-10 1995-08-17 Guentner Gmbh Hans Schutzgittervorrichtung für Ventilatoren, insbesondere von Luftkühlern
US6139265A (en) * 1996-05-01 2000-10-31 Valeo Thermique Moteur Stator fan
FR2772844B1 (fr) * 1997-12-23 2000-03-03 Valeo Thermique Moteur Sa Dispositif de canalisation d'un flux d'air, notamment pour vehicule automobile
WO2001011241A1 (fr) * 1999-08-09 2001-02-15 Daikin Industries,Ltd. Grille de protection d'une unite de soufflante et d'un conditionneur d'air
CN2463577Y (zh) * 2000-11-01 2001-12-05 广东科龙电器股份有限公司 非对称结构的离心风扇导流圈
JP3982181B2 (ja) * 2001-01-29 2007-09-26 ダイキン工業株式会社 送風ユニットのファンガード
US20020159883A1 (en) 2001-04-30 2002-10-31 Simon Glenn C. Combination airflow straightener and finger guard for use with a fan
CN2643046Y (zh) * 2003-07-28 2004-09-22 英业达股份有限公司 复合式风扇
US20050186070A1 (en) * 2004-02-23 2005-08-25 Ling-Zhong Zeng Fan assembly and method
EP1600640A3 (de) * 2004-04-26 2009-11-04 Behr GmbH & Co. KG Lüfterhaube für einen Wärmeübertrager, insbesondere für Kraftfahrzeuge
TWI273175B (en) * 2004-08-27 2007-02-11 Delta Electronics Inc Fan
US7484925B2 (en) * 2005-05-10 2009-02-03 Emp Advanced Development, Llc Rotary axial fan assembly
US20080064319A1 (en) * 2006-09-11 2008-03-13 Lloyd Chezick Air Filter for an Exhaust Fan
JP2009108792A (ja) * 2007-10-31 2009-05-21 Nippon Densan Corp ファン装置
DE102011012039A1 (de) 2011-02-22 2012-08-23 Esg Mbh Kanal mit Strömungsleitfläche
CN201827151U (zh) * 2010-10-22 2011-05-11 江苏上能变压器有限公司 变压器的吹风装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060147304A1 (en) * 2003-07-01 2006-07-06 Kyungseok Cho Guide blade of axial-flow fan shroud

Also Published As

Publication number Publication date
DE102012109542A1 (de) 2014-04-10
WO2014056657A4 (de) 2014-11-13
US10094394B2 (en) 2018-10-09
WO2014056657A3 (de) 2014-10-02
CN104685220A (zh) 2015-06-03
WO2014056657A2 (de) 2014-04-17
CN104685220B (zh) 2017-10-20
EP2904277A2 (de) 2015-08-12
US20150330411A1 (en) 2015-11-19

Similar Documents

Publication Publication Date Title
EP2904277B1 (de) Strömungsgleichrichter für einen axiallüfter
EP2778432B1 (de) Ventilatoranordnung mit Strömungsgleichrichter
DE60117177T2 (de) Hocheffizienter, zustromangepasster axiallüfter
EP2770260B1 (de) Gasturbinenbrennkammer mit Prall-effusionsgekühlter Schindel
EP2815130B1 (de) Diffusor, ventilator mit einem solchen diffusor sowie gerät mit solchen ventilatoren
EP3184826B1 (de) Ventilatoreinrichtung
EP2716915B1 (de) Gehäuse für einen Axialventilator
DE102015015598A1 (de) Kühlung von Triebwerkskomponenten
EP2693120A2 (de) Gasturbinenbrennkammer mit Mischluftöffnungen und Luftleitelementen in modularer Bauweise
DE10204830A1 (de) Wärmeableitsystem mit funktional unterstützendem Gebläseschutz
DE69105703T2 (de) Mundstückummantelung für Axiallüfter.
EP3631210A2 (de) Ventilator und vorleitgitter für einen ventilator
DE102010046331A1 (de) Gekühlte Turbinenschaufeln für ein Gasturbinentriebwerk
EP3775565A1 (de) Kompakter diagonalventilator mit nachleiteinrichtung
DE102012109546A1 (de) "Wandring für einen Axialventilator"
EP3009682A1 (de) Axialventilator mit aussen- und innendiffusor
EP3507559B1 (de) Wärmetauscherintegration
EP2329149B1 (de) Diagonallüfter
EP2716916A2 (de) Ventilatoreinheit
EP3617529A1 (de) Lüfterzarge eines kraftfahrzeugs
DE202018106508U1 (de) Variabel mit unterschiedlichen Düsen kombinierbarer Diagonalventilator
DE102014108073A1 (de) Lüfteranordnung
DE102012015452A1 (de) Gasturbinenbrennkammerwand mit Mischluftöffnungen und Luftleitelementen
WO2013143671A1 (de) Ventilator, insbesondere für den einsatz in der klima- und kältetechnik
WO2024074177A1 (de) Ventilator und kühlstruktur für einen ventilator

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: 20150410

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20200629

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20230109

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013016413

Country of ref document: DE

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230525

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1579418

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230715

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20230614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230914

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230915

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231014

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231016

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20231014

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231024

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013016413

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230827

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230827

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230831

26N No opposition filed

Effective date: 20240315

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20230914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230614