WO2012072779A1 - Ventilateur axial - Google Patents

Ventilateur axial Download PDF

Info

Publication number
WO2012072779A1
WO2012072779A1 PCT/EP2011/071579 EP2011071579W WO2012072779A1 WO 2012072779 A1 WO2012072779 A1 WO 2012072779A1 EP 2011071579 W EP2011071579 W EP 2011071579W WO 2012072779 A1 WO2012072779 A1 WO 2012072779A1
Authority
WO
WIPO (PCT)
Prior art keywords
hub
axial fan
blade
trailing edge
region
Prior art date
Application number
PCT/EP2011/071579
Other languages
German (de)
English (en)
Inventor
Uwe Aschermann
Uwe Blass
Frederic Guilbaud
Original Assignee
Behr Gmbh & 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 Behr Gmbh & Co. Kg filed Critical Behr Gmbh & Co. Kg
Priority to US13/991,188 priority Critical patent/US20130323072A1/en
Priority to KR1020137017038A priority patent/KR20140002690A/ko
Priority to JP2013541366A priority patent/JP6245437B2/ja
Priority to RU2013129920A priority patent/RU2608800C2/ru
Priority to EP11790627.1A priority patent/EP2646695B1/fr
Priority to BR112013015751-8A priority patent/BR112013015751B1/pt
Priority to CN201180057601.0A priority patent/CN103270311B/zh
Publication of WO2012072779A1 publication Critical patent/WO2012072779A1/fr

Links

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
    • 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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/022—Units comprising pumps and their driving means comprising a yielding coupling, e.g. hydraulic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • 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
    • 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
    • F04D29/329—Details of the hub

Definitions

  • the invention relates to an axial fan for conveying cooling air in particular for an internal combustion engine of a motor vehicle according to the preamble of patent claim 1.
  • a generic axial fan is disclosed in the earlier patent application of the applicant with the official file number 10 2010 042 325.4.
  • the axial fan has attached to a hub ring fan blades on their pressure side a hub ramp and on its suction side air guide elements, also called stabilizers, which serve to influence the fan flow have.
  • the fan blades each have a leading edge, also called the leading edge, and a trailing edge, also called the trailing edge.
  • the trailing edge of the fan blade has substantially two radially extending portions, namely an outer portion located outside the hub ramp and an inner portion disposed within the hub ramp.
  • the inner portion of the trailing edge is inwardly for weight-saving reasons, ie angled in the direction of the hub ring, so that there is a groove for the trailing edge and thus a reduction in the width of the fan blade. It has been found that, as a result of this grooving of the trailing edge, a transverse and / or rearward flow of the fan blade flow results, which produces an unfavorable influence on the flow on the pressure side of the adjacent fan blade. As a result of this backflow and / or cross flow, a vortex structure results in the region of the hub ramp, which results in a drop in the degree of efficiency.
  • EP 0 515 839 A1 discloses an axial fan with fan blades, on the pressure side of which a hub ramp rising counter to the direction of flow is arranged.
  • the hub ramp virtually fills the dead water area in the area of the blade root and thus avoids a lossy vortex flow.
  • the object of the invention is achieved by the independent claim 1.
  • Advantageous embodiments result from the dependent chen.Anspruchsloom, the fan blade has a trailing edge with two From “cut on, wherein a first outer portion located radially outside the hub ramp and a second inner portion radially inside of the hub ramp.
  • the trailing edge in the outer region radially outwardly of the hub ramp identifies a course which continues substantially radially unchanged beyond the radial position of the hub ramp and into the inner region in the radially innermost region towards the hub , This will The success achieved according to that stabilization of the fan blade flow in the hub ramp area is achieved, d, h, a transverse and / or reverse flow around the trailing edge of the fan blade is at least reduced or prevented. This leads to a significant increase in the efficiency of the fan and to a significant increase in the volume flow delivered by the fan at the operating point of the fan. In addition, the specific sound pressure level is reduced.
  • the radially innermost region is the radially inner part of the radius of the radially inner region.
  • this proportion is about a third, about a quarter or preferably less than about one fifth of the radius of the inner region of the trailing edge.
  • the fan blade advantageously also has substantially the same blade depth in the inner region as in the outer region, ie in particular that the blade trailing edge transitions from the outer portion substantially rectilinearly into the inner portion, so that the overall result is a straight trailing edge up to the blade root area. It does not harm a certain curvature of the leading edge, which in this consideration of simplicity half as a straight line, with an odd curved leading edge would also be permissible.
  • the blade depth and also the blade width in the area within the hub ramp are thus advantageously increased.
  • fan blade and fan blade are used in the context of the present application as synonyms.
  • blade depth is understood to mean the axial extent of the fan blade.
  • the sheet depth is the projection of the sheet width in the circumferential direction, the sheet width being the distance between the sheet leading edge and the sheet trailing edge, measured in the direction of the chord.
  • the trailing edge is rounded in the innermost region. As a result, a voltage-reduced transition of the blade trailing edge is made possible in the hub area.
  • the leaf trailing edge merges in its innermost region-via a rounding-into the free edge of the hub ramp. This achieves an increase in the strength in the blade root area for the connection of the fan blade to the hub.
  • stabilizers are arranged on the suction side of the fan blades, which are preferably located radially within the hub ramp. The downstream region of the stabilizer thus opens into the inner portion of the blade trailing edge.
  • the stabilizers in conjunction with the hub ramps between two blades achieved a further stabilization of the flow in the Schaufelfuß Symposium.
  • the hub is formed as a hub ring, which has a substantially smaller axial extent than the fan blades.
  • a cylindrical hub in the classical sense is therefore no longer available.
  • the axial extent of the fan blades is - as mentioned above - referred to as blade depth, which represents a projection of the blade width in the circumferential direction.
  • the fan blades protrude both with their front and with their trailing edge beyond the end faces of the hub ring. In this respect, the trailing edge running straight into the innermost region forms an axial projection of the fan blade relative to the hub ring.
  • the axial fan has a hub ratio Dj / D a of greater than 42%, wherein the hub ratio is the quotient of hub diameter and outer diameter of the fan blades.
  • the axial projection of the blade trailing edge in the inner region has a particularly advantageous effect on fans with a relatively large hub ratio, since this unfavorably affects the efficiency and the volume flow promoted by the fan - in this case results here a compensation.
  • the larger hub ratio may result due to a smaller outer diameter when the blades are cut due to power grading.
  • the axial fan is firmly connected via its hub ring with a fluid friction clutch, which in turn is driven by the internal combustion engine and drives the fan with a regulated output speed. At higher powers, the diameter of the fluid friction clutch and thus the hub diameter increases, which can lead to a larger hub ratio.
  • the blade supernatant according to the invention which leads to an increase in the efficiency and the volume flow, has a particularly positive effect.
  • the advantage here is a low accumulation of material in the region of the connection of the fan blade and hub ring and increased strength.
  • FIG. 3 shows a detail of a fan according to the invention in SD representation
  • Fig. 5 is a partial view of the axial fan with sectional plane Vl-Vl.
  • Fig. 1 shows an arrangement of fan blades 1, 2 of an axial fan according to the prior art.
  • the direction of rotation of the fan is indicated by an arrow D.
  • the fan blades 1, 2 each have on their pressure side Hub ramps 3, 4 and leaf trailing edges 1a, 2a on.
  • the trailing edges or trailing edges 1 a, 2 a called, have in their radially inner region, d, h.
  • FIG. 2 shows schematically an inventive design of fan blades 7, 8 and the blade trailing edges 7a, 8a.
  • Hub ramps 9, 10 are arranged on the pressure sides of the fan blades 7, 8, subdividing the blade trailing edges 7a, 8a into a radially outer and a radially inner region.
  • the radially inner region of the blade trailing edge 7a extends substantially straight, ie a substantially straight course takes place from the transition from the outer region to the inner region.
  • the blade width of the fan blade 7 is increased relative to the blade width of the fan blade 1 according to the prior art in the radially inner region, so that no groove takes place.
  • This enlarged area is highlighted by a bold contour 7b.
  • the effect of the increased blade width in the region 7b is an inhibition of the lossy transverse and / or illustrated in FIG Backflow.
  • the flow shown by arrows S is largely undisturbed radially outside the hub ramp 10 on the fan blade 8.
  • a relatively stable and eddy-free flow indicated by arrows P, also forms below the hub ramp 10.
  • the extension of the blade trailing edge in the radially inner region 7b, ie the enlargement of the blade width brings about a significant increase in the volume flow and the efficiency as well as a noise reduction.
  • bucket width or blade width mean the distance between the leading edge and the trailing edge or the length of the tendon of the bucket or the blade.
  • the depth of the blade is understood to mean the projection of the blade width in the circumferential direction.
  • FIG. 3 shows a detail of an axial fan 11 according to the invention in a 3D representation.
  • the illustration shows a hub ring 12, to which fan blades 13, 14, 15 attached, that are integrally molded.
  • the fan blades 13, 14, 15 each have on their print pages hub ramps 13a, 14a, 15a, which increase against the indicated by an arrow D direction of rotation.
  • the hub ramps 13a, 14a, 5a are ribbed for reasons of strength with the hub ring on its underside.
  • the fan blades 13, 14, 15 each have trailing edges 16, 17, 18, also called trailing edges 16, 17, 18, which extend essentially in a straight line from radially outside to radially inside.
  • the trailing edges 16, 17, 18 are divided into two sections, namely radially outer sections or regions 16a, 17a, 18a and radially inner sections or regions 16b, 17b, 18b.
  • the inner portions 16b, 17b, 18b of the blade trailing edges 16, 17, 18 pass over a radius or a fillet R in the free edges of the hub ramps 13a, 14a, 15a, wherein the reference lines of the reference numbers 13a, 14a, 15a of the run out of free edges.
  • Fig. 4 shows a radial section (section in a radial plane) through the hub ring 12 of the axial fan 1 1, wherein the same reference numerals as in Fig. 3 are used for the same parts.
  • the air flow direction is shown by an arrow L.
  • the hub ring 12 has an axial extent a and the fan blade 14 has a depth t, which - as mentioned above - is defined as a projection of the blade width in the circumferential direction. From the graphic representation it is clear that the blade depth t is considerably greater than the axial extent a of the hub ring 12.
  • the blade depth t is in a preferred embodiment about twice as large as the axial extent a of the hub ring 12.
  • the trailing edge 17 of the fan blade 14 extends substantially straight in the radial direction, wherein the innermost portion of the trailing edge 17 is rounded.
  • the hub ramp appears as a cut surface designated 14a.
  • Fig. 5 shows a view of an incomplete axial fan 20 with a view towards the front or the suction sides of the fan blades 21, on which air guide elements 22 are arranged.
  • the axial fan 20 comprises a metallic carrier ring 23, which on the one hand is connected to the plastic hub of the axial fan 20 and on the other hand can be fastened to a coupling, not shown, preferably a liquid friction clutch.
  • the fan blades designated by the reference numerals 21 a, 21 b, 21 c are cut off in the sectional plane Vl-Vl.
  • FIG. 6 shows a sectional view of the axial fan 20 according to sectional plane Vl-Vl.
  • the illustration shows different sectional areas of the fan blades 21 a, 21 b, 21 c.
  • the sectional plane Vl-Vl in Fig. 5 shows, the fan blades 21 a, 21 b, 21 c, based on their radial center line in subordinate
  • the sectional plane of the blade 21c in FIG. 6 is located above the hub ramp " here denoted by the reference numeral 24 and in FIG. 5.
  • the cutting plane for the middle blade 21b can be considered as a tangential cut and lies radially inside the hub ramp not recognizable branches, since it is arranged on the back of the fan blades 21.
  • the sectional area of the middle fan blade 21b, the blade width b, ie the distance between the front and rear edge, are removed.
  • the projection of the blade width b in the circumferential direction gives the (not shown) blade depth t, which is approximately constant over the entire radial region, namely at approximately rectilinear blade trailing edge.

Abstract

L'invention concerne un ventilateur axial destiné à transporter de l'air de refroidissement, en particulier pour un moteur à combustion interne d'un véhicule automobile. Ce ventilateur comprend des pales (13, 14, 15) qui sont fixées à un moyeu (12) et présentent un côté pression et un côté aspiration, un bord de fuite (16, 17, 18) et une profondeur de pale (t), une rampe de moyeu (13a, 14a, 15a) montant en sens inverse du sens de rotation (D) du ventilateur axial (11) étant disposée sur le côté pression des pales. Selon l'invention, le bord de fuite (16, 17, 18) présente une zone extérieure (16a, 17a, 18a) située radialement à l'extérieur de la rampe de moyeu (13a, 14a, 15a) et une zone intérieure (16b, 17b, 18b) située radialement à l'intérieur de la rampe de moyeu (13a, 14a, 15a).
PCT/EP2011/071579 2010-12-01 2011-12-01 Ventilateur axial WO2012072779A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US13/991,188 US20130323072A1 (en) 2010-12-01 2011-12-01 Axial fan
KR1020137017038A KR20140002690A (ko) 2010-12-01 2011-12-01 축류식 팬
JP2013541366A JP6245437B2 (ja) 2010-12-01 2011-12-01 軸流ファン
RU2013129920A RU2608800C2 (ru) 2010-12-01 2011-12-01 Осевой вентилятор
EP11790627.1A EP2646695B1 (fr) 2010-12-01 2011-12-01 Ventilateur axial
BR112013015751-8A BR112013015751B1 (pt) 2010-12-01 2011-12-01 ventilador axial
CN201180057601.0A CN103270311B (zh) 2010-12-01 2011-12-01 轴流式风扇

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010062301.6 2010-12-01
DE102010062301A DE102010062301A1 (de) 2010-12-01 2010-12-01 Axiallüfter

Publications (1)

Publication Number Publication Date
WO2012072779A1 true WO2012072779A1 (fr) 2012-06-07

Family

ID=45065912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/071579 WO2012072779A1 (fr) 2010-12-01 2011-12-01 Ventilateur axial

Country Status (9)

Country Link
US (1) US20130323072A1 (fr)
EP (1) EP2646695B1 (fr)
JP (1) JP6245437B2 (fr)
KR (1) KR20140002690A (fr)
CN (1) CN103270311B (fr)
BR (1) BR112013015751B1 (fr)
DE (1) DE102010062301A1 (fr)
RU (1) RU2608800C2 (fr)
WO (1) WO2012072779A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014204043A1 (de) 2014-03-05 2015-09-10 MAHLE Behr GmbH & Co. KG Lüfterrad eines Axiallüfters
US10539157B2 (en) 2015-04-08 2020-01-21 Horton, Inc. Fan blade surface features

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3014151B1 (fr) * 2013-11-29 2015-12-04 Snecma Soufflante, en particulier pour une turbomachine
FR3014150B1 (fr) * 2013-11-29 2018-03-02 Safran Aircraft Engines Soufflante, en particulier pour une turbomachine
CN103953567A (zh) * 2014-05-16 2014-07-30 佟宝义 一种用于大中型柴油发动机散热器的碳纤维风扇叶片
US9869190B2 (en) 2014-05-30 2018-01-16 General Electric Company Variable-pitch rotor with remote counterweights
DE102014219023A1 (de) 2014-09-22 2016-03-24 Mahle International Gmbh Axiallüfter zur Förderung von Kühlluft, insbesondere für einen Verbrennungsmotor eines Kraftfahrzeuges
US10072510B2 (en) 2014-11-21 2018-09-11 General Electric Company Variable pitch fan for gas turbine engine and method of assembling the same
US10100653B2 (en) 2015-10-08 2018-10-16 General Electric Company Variable pitch fan blade retention system
USD809121S1 (en) * 2016-04-26 2018-01-30 Parker-Hannifin Corporation Fan with integral airflow guide
US10280935B2 (en) 2016-04-26 2019-05-07 Parker-Hannifin Corporation Integral fan and airflow guide
WO2018195539A1 (fr) * 2017-04-21 2018-10-25 Evapco, Inc. Ventilateur axial de tour de refroidissement dans une configuration creusée de disque/anneau
EP3612731A4 (fr) * 2017-04-21 2020-12-30 Evapco, Inc. Ventilateur axial de tour de refroidissement dans une configuration creusée de disque/anneau
WO2018229081A1 (fr) * 2017-06-12 2018-12-20 Valeo Systemes Thermiques Ventilateur de vehicule automobile
USD860427S1 (en) 2017-09-18 2019-09-17 Horton, Inc. Ring fan
US11767761B2 (en) 2018-08-02 2023-09-26 Horton, Inc. Low solidity vehicle cooling fan
CN110107530B (zh) * 2019-06-19 2023-12-29 苏州睿昕汽车配件有限公司 多段式导流轮毂结构风扇
CN111927825B (zh) * 2020-07-24 2022-06-28 东风马勒热系统有限公司 开口风扇
US11674435B2 (en) 2021-06-29 2023-06-13 General Electric Company Levered counterweight feathering system
US11795964B2 (en) 2021-07-16 2023-10-24 General Electric Company Levered counterweight feathering system
DE102022119333A1 (de) 2022-08-02 2024-02-08 Technische Universität Darmstadt, Körperschaft des öffentlichen Rechts Strömungsmaschine mit einer verstellbaren Axiallaufradanordnung
CN115596706A (zh) * 2022-10-31 2023-01-13 东风马勒热系统有限公司（Cn） 轴流风扇

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515839A1 (fr) 1991-05-27 1992-12-02 Behr GmbH & Co. Rotor pour un ventilateur à courant mixte
DE19929978A1 (de) * 1999-06-30 2001-01-04 Behr Gmbh & Co Lüfter mit Axialschaufeln
EP1219837A2 (fr) * 2001-01-02 2002-07-03 Behr GmbH & Co. Ventilateur à pales axiales
DE102008035185A1 (de) * 2008-07-28 2010-02-04 Behr Gmbh & Co. Kg Lüfterkupplung
DE112008001022T5 (de) * 2007-05-10 2010-06-10 Borgwarner Inc., Auburn Hills Synergistische Flügel- und Nabenstruktur für Kühlgebläse

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU623008A1 (ru) * 1975-10-30 1978-09-05 Центральный Ордена Трудового Красного Знамени Научно-Исследовательский Автомобильный И Автомоторный Институт Нами Рабочее колесо осевого вентил тора
DE8207204U1 (de) * 1982-03-15 1982-08-19 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Axialgeblaese, insbesonder fuer kuehler einer wassergekuehlten brennkraftmaschine
DE19710608B4 (de) * 1997-03-14 2007-10-31 Behr Gmbh & Co. Kg Axiallüfter für den Kühler eines Verbrennungsmotors
US6375427B1 (en) * 2000-04-14 2002-04-23 Borgwarner Inc. Engine cooling fan having supporting vanes
US6692231B1 (en) * 2001-02-28 2004-02-17 General Shelters Of Texas S.B., Ltd. Molded fan having repositionable blades
RU2248468C1 (ru) * 2003-11-28 2005-03-20 Закрытое акционерное общество "ЛАДА-ФЛЕКТ" Рабочее колесо осевого вентилятора
US7815418B2 (en) * 2005-08-03 2010-10-19 Mitsubishi Heavy Industries, Ltd. Shroud and rotary vane wheel of propeller fan and propeller fan
US20070122287A1 (en) * 2005-11-29 2007-05-31 Pennington Donald R Fan blade assembly
DE102010042325A1 (de) * 2010-10-12 2012-04-12 Behr Gmbh & Co. Kg Lüfter mit Lüfterschaufeln

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0515839A1 (fr) 1991-05-27 1992-12-02 Behr GmbH & Co. Rotor pour un ventilateur à courant mixte
DE19929978A1 (de) * 1999-06-30 2001-01-04 Behr Gmbh & Co Lüfter mit Axialschaufeln
DE19929978B4 (de) 1999-06-30 2006-02-09 Behr Gmbh & Co. Kg Lüfter mit Axialschaufeln
EP1219837A2 (fr) * 2001-01-02 2002-07-03 Behr GmbH & Co. Ventilateur à pales axiales
DE112008001022T5 (de) * 2007-05-10 2010-06-10 Borgwarner Inc., Auburn Hills Synergistische Flügel- und Nabenstruktur für Kühlgebläse
DE102008035185A1 (de) * 2008-07-28 2010-02-04 Behr Gmbh & Co. Kg Lüfterkupplung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014204043A1 (de) 2014-03-05 2015-09-10 MAHLE Behr GmbH & Co. KG Lüfterrad eines Axiallüfters
WO2015132077A1 (fr) * 2014-03-05 2015-09-11 MAHLE Behr GmbH & Co. KG Roue de ventilateur pour ventilateur axial
US10539157B2 (en) 2015-04-08 2020-01-21 Horton, Inc. Fan blade surface features
US10662975B2 (en) 2015-04-08 2020-05-26 Horton, Inc. Fan blade surface features

Also Published As

Publication number Publication date
RU2013129920A (ru) 2015-01-10
CN103270311A (zh) 2013-08-28
JP2013544337A (ja) 2013-12-12
EP2646695A1 (fr) 2013-10-09
DE102010062301A1 (de) 2012-06-06
KR20140002690A (ko) 2014-01-08
BR112013015751B1 (pt) 2020-10-20
EP2646695B1 (fr) 2017-07-12
RU2608800C2 (ru) 2017-01-24
US20130323072A1 (en) 2013-12-05
JP6245437B2 (ja) 2017-12-13
BR112013015751A2 (pt) 2016-09-27
CN103270311B (zh) 2017-05-31

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