WO2002063172A1 - Ventilateur helicoide pour vehicule - Google Patents
Ventilateur helicoide pour vehicule Download PDFInfo
- Publication number
- WO2002063172A1 WO2002063172A1 PCT/JP2002/001048 JP0201048W WO02063172A1 WO 2002063172 A1 WO2002063172 A1 WO 2002063172A1 JP 0201048 W JP0201048 W JP 0201048W WO 02063172 A1 WO02063172 A1 WO 02063172A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blade
- axial
- air
- vehicle
- shaft end
- Prior art date
Links
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 231100000241 scar Toxicity 0.000 claims 1
- 239000000498 cooling water Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- -1 Polypropylene Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010998 test method Methods 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer 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
- F04D29/26—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
- F04D29/26—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 present invention relates to a vehicle axial flow fan having a plurality of blades extending radially from a boss (hub).
- a blower that blows cooling air to the radiator and radiator is usually mounted in a location such as the front end of the vehicle where air can be easily taken in. Therefore, the blower is strongly affected by the traveling wind pressure.
- the speed difference between the blade surface of the blade and the air decreases when it receives the traveling wind pressure in the axial direction.
- the resistance between the wing surface and the air is reduced.
- an object of the present invention is to suppress a decrease in air flow when blowing air does not flow in the axial direction but flows in the outer diameter direction in the vehicle axial flow fan.
- a heat exchanger (100) having a plurality of blades (212) extending radially from a boss (211) and mounted on a vehicle is provided.
- An axial fan (210) that blows air to the boss portion (211), and the axial end surface (211a) of the axial end surface of the boss (211) located on the side of the negative pressure surface (212a) of the plate (212) is: It is configured such that air flows from the shaft end surface (211a) side to the root side of the blade (212).
- the air flowing from the shaft end face (211a) side to the root side of the blade (212) reduces the resistance between the blade surface and the air at the root side of the blade (212).
- the stall at the root side of (212) can be suppressed. Therefore, the air on the front side of the boss (211) can be effectively flown outward (the blade (212)), so that a decrease in the air volume can be suppressed.
- an axial fan (210) having a plurality of blades (212) extending radially from a boss (211) and blowing air to a heat exchanger (100) mounted on a vehicle.
- the front edge (212b) of the blade (212) is located at the axial end of the boss (211) when viewed from the direction orthogonal to the axial direction of the boss (211). It is shifted upstream from the end face (211a).
- FIG. 1A is a side view of the axial fan according to the first embodiment of the present invention
- FIG. 1B is a front view of the axial fan according to the first embodiment of the present invention
- FIG. FIG. 2 is a schematic side view of the axial fan according to the first embodiment.
- FIG. 3A is a perspective view of the axial fan according to the first embodiment of the present invention.
- FIG. 3B is a sectional view taken along the line m-m of FIG. 3A.
- FIG. 4 is a graph showing fan efficiency, static pressure, and fan drive torque with respect to the amount of air blown.
- FIG. 5A is a side view of the axial fan according to the second embodiment of the present invention
- FIG. 5B is a front view of the axial fan according to the second embodiment of the present invention
- FIG. FIG. 5B is an enlarged view of a main part of part A in FIG. 5A.
- FIG. 6 is a sectional view of a blade and a boss of an axial fan according to a second embodiment of the present invention.
- FIG. 7 is a side view of an axial fan according to the related art. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a schematic diagram showing a mounted state of a blower 100 according to the present embodiment
- FIG. 2 is a schematic diagram abstracting FIG. 1A. is there.
- the radiator 100 is a heat exchanger that cools the cooling water by exchanging heat between the cooling water of the engine E / G and the air
- the blower 200 is a blower that blows the cooling air to the radiator 100. is there.
- the radiator 100 and the blower 200 are usually mounted at a position such as the front end of the vehicle where air can be easily taken in.
- the radiator 100 is provided between a plurality of flat tubes 111 through which the cooling water flows and between the tubes 111, and a wavy fin (not shown) for increasing a heat transfer area with air.
- a radiator core for exchanging heat between cooling water and air is formed by brazing the fin and the tube 111.
- the tubes 111 extend in the up-down direction, and a header tank 120 communicating with each of the tubes 111 is provided at an end thereof.
- the bed tank 120 at the upper end of the drawing distributes cooling water to each tube 111
- the header tank 120 at the lower end of the drawing collects and collects cooling water after heat exchange. .
- the blower 200 includes an axial flow terminal 210 composed of a plurality of blades 212 extending radially from the boss portion 211 and a shaft 220 (FIG. 1) that rotationally drives the axial flow fan 210.
- the shaft 220 is powered by the crankshaft (not shown) of the engine E / G.
- a metal sleeve (not shown) is attached to the portion of the boss 211 into which the shaft 220 is inserted, and the boss 211 and the blade 212 are made of resin (in this embodiment, resin). , Polypropylene). Therefore, the phrase “the boss portion 211 and the blade 212 are integrally formed of resin” in this specification does not necessarily mean that the entire boss portion 212 is made of resin. Of course, it goes without saying that the entire boss portion 212 may be made of resin.
- an axial fan is a fan through which gas (air) passes in the axial direction as specified in JIS B 0132 No. 1012.
- the negative pressure 212a of the blade 212 when viewed from a direction (perpendicular to the paper) perpendicular to the axial direction of the boss portion 211, the negative pressure 212a of the blade 212 (see FIG. 3B)
- the front edge 212b of the blade 211 which is a ridgeline, is configured to be shifted to the upstream side of the air flow from the shaft end face 211a located at the axial end of the boss 211.
- the negative pressure side 212a side is about half the area of the root side (boss 211 side) of the plate 212 on the front edge 212b side.
- the shape is such that it protrudes upstream of the air flow from the shaft end face 211a located at the end.
- the negative pressure surface of the blade is defined as the surface of the blade surface opposite to the direction of the air blowing direction (pressure surface), as described in, for example, Fluid Engineering (The University of Tokyo Press).
- the front edge of the blade refers to the front end in the traveling direction of the blade as described in the above book.
- the curved surface 213 is formed such that the contour 213a of the curved surface 213 draws a streamline or an airfoil shape as shown in FIG.1B when viewed from the axial direction of the boss 211. Has been done.
- streamline means air flow as described in the above book.
- object in this example, the curved surface 2173
- the wing shape is, as described in the above-mentioned book, such that a lift that is considerably larger than air resistance is generated. Shape.
- the shroud 230 covers the gap between the axial fan 230 and the radiator 100, so that the air blown out from the axial fan 210 is sucked into the axial fan 210.
- the shroud 230 covers the gap between the axial fan 230 and the radiator 100, so that the air blown out from the axial fan 210 is sucked into the axial fan 210.
- the front edge portion 212b of the blade 211 when viewed from a direction orthogonal to the axial direction of the boss portion 211, the front edge portion 212b of the blade 211 is configured to be shifted to the airflow upstream side from the shaft end surface 211a. Air can flow from the a side to the root side of the blade 212.
- the air flowing from the shaft end face 211a toward the root of the blade 212 reduces the resistance between the blade surface and the air at the root of the blade 212. Stall at the root side of the blade 212 can be suppressed.
- the air can be suppressed from flowing in the outer diameter direction, it is possible to prevent the space dimension through which the air can substantially flow from being reduced, and the blower volume and fan efficiency of the blower 200 decrease. Can be suppressed.
- the shaft end face 211a is connected to the shaft end face 211a from the root side of the blade 212 by a smooth curved surface 213, air can flow smoothly from the shaft end face 211a side to the root side of the blade 212. Therefore, the resistance between the blade surface and the air at the root side of the blade 212 can be further reduced, so that the stall at the root side of the blade 212 can be reliably suppressed. Further, since the curved surface 213 is formed so that the contour 1 ′ line 213a of the curved surface 213 draws a streamline or an airfoil when viewed from the axial direction of the boss portion 211, the blade 212 is formed from the end surface 211a side. The air can flow smoothly toward the root of the car.
- the curved surface 213 is a curved surface that is curved in a dome shape, the mechanical strength at the base of the blade 21 can be increased.
- FIG. 4 shows test results showing fan efficiency, static pressure, and fan drive torque with respect to the amount of air blown.
- the axial fan according to the present embodiment has It can be seen that both static pressure and fan efficiency are improved at the same torque as the flow fan.
- a skirt portion 213 b extending from the curved surface 213 to be continuous with the pressure surface side of the blade 212 and expanding to the outer peripheral side is provided at the base side of the blade 212.
- 212 is formed from the front edge to the rear edge.
- the vehicle axial flow fan according to the present invention is applied for cooling the radiator 100.
- the present invention is not limited to this, and may be applied to other heat exchanger blowers such as a condenser. Can be applied.
- the present invention facilitates the flow of air from the shaft end face 211a side to the root side of the blade 212, as is clear from the above embodiment. Since the stall at the root side of the blade 212 is suppressed, the smaller the diameter of the boss portion 211 with respect to the outer diameter D of the axial fan 210, the more the influence of the boss portion 211 (the shaft end surface 211a side). (The amount of air flowing to the root side of the blade 212).
- the present invention is more effective as the axial fan has a larger ratio (d / D) of the diameter of the boss portion 211 to the outer diameter D of the axial fan 210.
- dZD is particularly effective for an axial fan having a diameter of 0.335 or more.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0203998-2A BR0203998B1 (pt) | 2001-02-07 | 2002-02-07 | ventilador axial para veìculos. |
EP02711387A EP1359327B1 (en) | 2001-02-07 | 2002-02-07 | Axial fan for vehicle |
DE60220248T DE60220248T2 (de) | 2001-02-07 | 2002-02-07 | Axialventilator für fahrzeuge |
US10/266,151 US6659724B2 (en) | 2001-02-07 | 2002-10-07 | Axial fan for vehicles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001031339 | 2001-02-07 | ||
JP2001-31339 | 2001-02-07 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/266,151 Continuation US6659724B2 (en) | 2001-02-07 | 2002-10-07 | Axial fan for vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002063172A1 true WO2002063172A1 (fr) | 2002-08-15 |
Family
ID=18895436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2002/001048 WO2002063172A1 (fr) | 2001-02-07 | 2002-02-07 | Ventilateur helicoide pour vehicule |
Country Status (5)
Country | Link |
---|---|
US (1) | US6659724B2 (ja) |
EP (1) | EP1359327B1 (ja) |
BR (1) | BR0203998B1 (ja) |
DE (1) | DE60220248T2 (ja) |
WO (1) | WO2002063172A1 (ja) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004169680A (ja) * | 2002-11-18 | 2004-06-17 | Taida Electronic Ind Co Ltd | 羽根構造およびそれを用いた放熱装置 |
US7063125B2 (en) * | 2003-09-10 | 2006-06-20 | Borgwarner Inc. | Fan penetration feature for in-vehicle testing |
TWI233469B (en) * | 2004-02-03 | 2005-06-01 | Delta Electronics Inc | Fan assembly and impeller thereof |
CN100424360C (zh) * | 2004-02-11 | 2008-10-08 | 台达电子工业股份有限公司 | 风扇及其扇叶组件 |
ITBO20040468A1 (it) * | 2004-07-23 | 2004-10-23 | Spal Srl | Ventola assiale a flusso aumentato |
US20060270503A1 (en) * | 2005-05-27 | 2006-11-30 | Takanori Suzuki | Cooling system for continuous variable transmission of vehicle |
US20070264122A1 (en) * | 2006-05-09 | 2007-11-15 | Denso Corporation | Blower |
KR101565294B1 (ko) * | 2008-07-31 | 2015-11-04 | 삼성전자 주식회사 | 축류 팬 |
IT1396350B1 (it) * | 2009-10-26 | 2012-11-19 | Spal Automotive Srl | Ventilatore assiale |
DE102010042325A1 (de) * | 2010-10-12 | 2012-04-12 | Behr Gmbh & Co. Kg | Lüfter mit Lüfterschaufeln |
BRMU9100274U2 (pt) * | 2011-02-09 | 2013-05-07 | Jose Roberto Alves | ventilador com sistema reversivel para arrefecimento e limpeza de radiadores |
CN102312858B (zh) * | 2011-08-25 | 2013-03-20 | 张家港市东丰特种风机有限公司 | 轴流式热风循环风机的叶轮 |
US9580137B2 (en) | 2014-04-17 | 2017-02-28 | Thomas S. Felker | Dual powered propulsion system |
US10569827B2 (en) | 2014-04-17 | 2020-02-25 | Thomas S. Felker | Bicycle dual power turning track, rack, pinion, and one-way bearing propulsion system |
KR101637745B1 (ko) * | 2014-11-25 | 2016-07-07 | 현대자동차주식회사 | 열해를 방지하는 에어가이드를 구비한 라디에이터 |
US10569129B2 (en) | 2016-04-15 | 2020-02-25 | Thomas S. Felker | Tri-power exercising device |
USD860427S1 (en) | 2017-09-18 | 2019-09-17 | Horton, Inc. | Ring fan |
WO2020028010A1 (en) | 2018-08-02 | 2020-02-06 | Horton, Inc. | Low solidity vehicle cooling fan |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5866000A (ja) * | 1981-10-12 | 1983-04-19 | Nissan Motor Co Ltd | 斜流型フアン |
JPS6073000U (ja) * | 1983-10-25 | 1985-05-22 | ダイキン工業株式会社 | プロペラフアン |
JPH03110199U (ja) * | 1990-02-27 | 1991-11-12 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1473066A (en) * | 1922-03-20 | 1923-11-06 | Merritt R Wells | Fan for automobile radiators or the like |
US2238749A (en) * | 1939-01-30 | 1941-04-15 | Clarence B Swift | Fan blade |
DE2062765A1 (de) * | 1970-12-19 | 1972-07-06 | Daimler-Benz AG, 7000 "Stuttgart | Einrichtung zur Kühlung von Kraftfahrzeug-Brennkraftmaschinen |
US4671739A (en) * | 1980-07-11 | 1987-06-09 | Robert W. Read | One piece molded fan |
JPS5783696A (en) * | 1980-11-14 | 1982-05-25 | Nippon Denso Co Ltd | Fan |
JPS6073000A (ja) | 1983-09-29 | 1985-04-25 | コルゲ−ト・パ−モリブ・カンパニ− | 棒状洗浄剤及び連続押出し装置 |
JPS60156998A (ja) * | 1984-01-26 | 1985-08-17 | Daikin Ind Ltd | プロペラフアン |
US5066196A (en) * | 1988-04-21 | 1991-11-19 | Usui Kokusai Sangyo Kabushiki Kaisha | Engine-cooling fan made of synthetic resin |
JP2659440B2 (ja) | 1989-09-25 | 1997-09-30 | 日立マクセル株式会社 | 情報カードの封止方法 |
JP2987133B2 (ja) * | 1997-04-25 | 1999-12-06 | 日本電産コパル株式会社 | 軸流ファンと軸流ファンの羽根体の製造方法及び軸流ファンの羽根体の製造用金型 |
IT1303113B1 (it) * | 1998-10-08 | 2000-10-30 | Gate Spa | Ventola assiale, particolarmente per il raffreddamento di unoscambiatore di calore in un autoveicolo. |
-
2002
- 2002-02-07 EP EP02711387A patent/EP1359327B1/en not_active Expired - Lifetime
- 2002-02-07 DE DE60220248T patent/DE60220248T2/de not_active Expired - Lifetime
- 2002-02-07 WO PCT/JP2002/001048 patent/WO2002063172A1/ja active IP Right Grant
- 2002-02-07 BR BRPI0203998-2A patent/BR0203998B1/pt not_active IP Right Cessation
- 2002-10-07 US US10/266,151 patent/US6659724B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5866000A (ja) * | 1981-10-12 | 1983-04-19 | Nissan Motor Co Ltd | 斜流型フアン |
JPS6073000U (ja) * | 1983-10-25 | 1985-05-22 | ダイキン工業株式会社 | プロペラフアン |
JPH03110199U (ja) * | 1990-02-27 | 1991-11-12 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1359327A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1359327A4 (en) | 2004-12-15 |
DE60220248D1 (de) | 2007-07-05 |
BR0203998B1 (pt) | 2010-11-16 |
US20030031561A1 (en) | 2003-02-13 |
BR0203998A (pt) | 2003-02-11 |
DE60220248T2 (de) | 2008-01-17 |
EP1359327A1 (en) | 2003-11-05 |
EP1359327B1 (en) | 2007-05-23 |
US6659724B2 (en) | 2003-12-09 |
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