EP0242248A1 - Radiallüfter, insbesondere für die Klimaanlage eines Fahrzeugs - Google Patents

Radiallüfter, insbesondere für die Klimaanlage eines Fahrzeugs Download PDF

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Publication number
EP0242248A1
EP0242248A1 EP87400555A EP87400555A EP0242248A1 EP 0242248 A1 EP0242248 A1 EP 0242248A1 EP 87400555 A EP87400555 A EP 87400555A EP 87400555 A EP87400555 A EP 87400555A EP 0242248 A1 EP0242248 A1 EP 0242248A1
Authority
EP
European Patent Office
Prior art keywords
bowl
fan according
blades
rim
air inlet
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
Application number
EP87400555A
Other languages
English (en)
French (fr)
Other versions
EP0242248B1 (de
Inventor
Jean-Claude Vera
Maurice Bertot
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.)
ECIA Equipements et Composants pour lIndustrie Automobile SA
Original Assignee
Aciers et Outillage Peugeot SA
ECIA Equipements et Composants pour lIndustrie Automobile SA
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 Aciers et Outillage Peugeot SA, ECIA Equipements et Composants pour lIndustrie Automobile SA filed Critical Aciers et Outillage Peugeot SA
Publication of EP0242248A1 publication Critical patent/EP0242248A1/de
Application granted granted Critical
Publication of EP0242248B1 publication Critical patent/EP0242248B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • 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
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis

Definitions

  • the present invention relates to a radial fan, intended in particular for air conditioning of a motor vehicle.
  • a radial fan comprising a scroll casing in which a ventilation propeller is arranged connected to drive means.
  • the propeller comprises a series of blades each having an outer rim and an inner rim and extending approximately parallel to the axis of rotation of this propeller, from a bowl connecting these to the means of drive, towards an edge of an air intake, defining with the bowl a space for a fluid vein.
  • the drive means are constituted by bipolar electric motors making it possible to drive the ventilation propeller at a relatively high speed of rotation so as to compensate for this low efficiency while keeping the same size.
  • These bipolar motors have a relatively large axial length, which means that in order to limit the total size of the fan, the use of very domed impeller bowls. This results in a further drop in the efficiency of the assembly.
  • the object of the invention is therefore to solve the problems mentioned above.
  • the invention relates to a radial fan intended in particular for the air conditioning of a motor vehicle, of the type defined above characterized in that the facing surfaces of the bowl and the rim of the air inlet, at least up to 'to the inner edges of the blades, are generated by rotation about said axis of rotation, sections of parallel curves.
  • the sections of parallel curves are formed by arcs of concentric circles.
  • the drive means are constituted by an electric motor with four poles whose axial length is less than the diameter.
  • a radial fan of the state of the art comprises a casing 1 in volute in which is arranged a ventilation propeller 2 connected to drive means 3 constituted by an electric motor, for example bipolar, the propeller 2 comprises a series of vanes 4 each having an outer rim and an inner rim and extending approximately parallel to the axis of rotation of the propeller, from a bowl 5 connecting these to the drive means 3, towards a rim 6 of an air inlet 7, delimiting with the bowl a space for a fluid vein.
  • this fan has a certain number of drawbacks due in particular to the size of the electric motor which requires the use of a very domed bowl and therefore reduces the useful height of the blades.
  • a radial fan according to the invention also comprises a scroll casing 10 in which is arranged a ventilation propeller 11 molded and connected to drive means 12 which are constituted by an electric motor with four poles whose axial length is less than its diameter.
  • the use of this motor is made possible thanks to the increase in the efficiency of the assembly and in particular of the ventilation propeller, the structure of which will be described in more detail below.
  • the motor 12 can be fixed to the housing 10 by means of projecting parts 12 a on either side of this motor.
  • the propeller also includes a number of vanes 13 each having an outer rim 13 a delimiting a circle of diameter D and an inner rim 13 b delimiting a circle of diameter d.
  • These blades extend roughly parallel to the axis of rotation XX of the ventilation propeller, from a bowl 14 connecting these blades to the motor electric, towards a rim 15 of an air inlet 16, delimiting with the bowl a space for a fluid stream.
  • the facing surfaces of the bowl and of the edge of the air inlet, at least up to the inner edges of the blades, are formed by rotation around said axis of rotation, of sections of parallel curves and more particularly, in the example shown, of arcs of concentric circles.
  • the height H of the blades is less than or equal to D / 2 with D representing the diameter of the circle delimited by the outer edges of the blades.
  • the center O of the circles C1 and C2 whose arcs delimit the parts opposite the bowl 14 and the rim 15 of the air intake, is located at the point of intersection of a straight line YY passing through the outer rim of a dawn and the perpendicular bisector ZZ of a line segment extending between the point of intersection A of said line YY with a plane defined by the base of the bowl 14 and a point B located on the axis of rotation XX of the propeller, at a height between 0.5 and 0.6 times the height H of the blades, from said plane.
  • the top of the bowl advantageously has a flat 17.
  • the height of the top of the bowl, and therefore for example of this flat, is between 0.28 and 0.47 times the height H of the blades from the plane defined by the base of the bowl.
  • a stiffening ring 18 comprising an outer rim and an inner rim is provided at the free end of the blades. As shown in this Fig.3, this stiffening ring can be arranged above the blades. However, and as shown in Fig.4, this stiffening ring can also be embedded between the blades.
  • the outer rim of this ridification ring delimits a circle of diameter D
  • its inner rim delimits a circle of diameter da ⁇ (D + d) / 2 with D: diameter of the delimited circle by the outer edges of the blades; and d: diameter of the circle delimited by the inner edges of the blades.
  • the circle C2 an arc of which delimits the part of the rim 15 of the air inlet facing the bowl, can pass through several points of this stiffening ring.
  • this circle can pass through a point Da of the edge of the outer rim of the stiffening ring 18, opposite the base of the bowl.
  • this circle can also pass through a point Db of the edge of the inner rim of the stiffening ring, opposite the base of the bowl.
  • this circle can also pass through a point Dc of the edge of the inner rim of the stiffening ring, opposite the rim 15 of the air inlet.
  • the arc of a circle C1 defining this part of a bowl 19 opposite the corresponding part of the rim of the air inlet, extends from the top of the bowl up to the inner edges 20 has blades 20 and the bowl 19 has a peripheral portion 19 a roughly parallel to the plane defined by the base of the bowl and on which the blades 20 are fixed.
  • stiffening ring advantageously has a rectangular section and a thickness determined in a manner known per se and which can vary for example from 1 to 3 mm depending on the size of the propeller.
  • the facing surfaces of the bowl and the rim of the air inlet can be generated by rotation around said axis of rotation, other shapes of sections of curves provided that these are parallel so as to delimit a fluid vein of constant section around the axis of rotation of the propeller.
  • the clearances between the ventilation propeller and the walls of the housing are reduced to the current operating clearances so as to take into account any geometrical faults of the ventilation propeller, of the housing itself, and deviations due to the accumulation of manufacturing tolerances.
EP87400555A 1986-03-17 1987-03-12 Radiallüfter, insbesondere für die Klimaanlage eines Fahrzeugs Expired - Lifetime EP0242248B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8603742A FR2595767B1 (fr) 1986-03-17 1986-03-17 Ventilateur radial destine notamment a la climatisation de vehicule automobile
FR8603742 1986-03-17

Publications (2)

Publication Number Publication Date
EP0242248A1 true EP0242248A1 (de) 1987-10-21
EP0242248B1 EP0242248B1 (de) 1990-09-05

Family

ID=9333169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87400555A Expired - Lifetime EP0242248B1 (de) 1986-03-17 1987-03-12 Radiallüfter, insbesondere für die Klimaanlage eines Fahrzeugs

Country Status (6)

Country Link
US (1) US4915583A (de)
EP (1) EP0242248B1 (de)
JP (1) JPS62265498A (de)
DE (1) DE3764693D1 (de)
ES (1) ES2017504B3 (de)
FR (1) FR2595767B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2711397A1 (fr) * 1993-10-20 1995-04-28 Bosch Gmbh Robert Ventilateur adapté à l'habitacle d'un véhicule automobile.
CN104632687A (zh) * 2015-01-06 2015-05-20 辽宁伊菲科技股份有限公司 一种高温环境下提高轴流风机电机寿命及性能的装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06159289A (ja) * 1992-11-25 1994-06-07 Nippondenso Co Ltd 多翼送風機
US5478201A (en) * 1994-06-13 1995-12-26 Carrier Corporation Centrifugal fan inlet orifice and impeller assembly
KR19990018491A (ko) * 1997-08-27 1999-03-15 김징완 유로가이드를 갖는 원심송풍기
KR100380228B1 (ko) * 2000-05-16 2003-04-16 엘지전자 주식회사 창문형 에어컨의 시로코팬
US6712582B1 (en) * 2000-10-10 2004-03-30 Delta Electronics, Inc. Centrifugal fan
GB2444939A (en) * 2006-12-22 2008-06-25 Dyson Technology Ltd A shaped member for an impeller rotor assembly
UA107094C2 (xx) 2009-11-03 2014-11-25 Відцентровий стельовий вентилятор
JP2013064347A (ja) 2011-09-16 2013-04-11 Seiko Epson Corp 遠心ファンおよびプロジェクター
FR3043180B1 (fr) * 2015-10-29 2017-11-24 Valeo Systemes Thermiques Ensemble support moteur et installation de chauffage, de ventilation et/ou de climatisation pour vehicule automobile correspondante
CN112644244B (zh) * 2020-12-15 2022-06-17 上海爱斯达克汽车空调系统有限公司 适用于后向曲线叶轮的压力回收装置及汽车空调

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR863235A (fr) * 1939-09-13 1941-03-27 Perfectionnements dans les souffieries et les aspirateurs rotatifs
GB796696A (en) * 1955-07-19 1958-06-18 Davidson & Co Ltd Improvements in or relating to centrifugal fans
DE1503607A1 (de) * 1964-06-30 1969-01-30 Shelley Donald Percy Hochtemperaturgeblaese
CH516743A (de) * 1970-12-01 1971-12-15 Gema Ag App Bau Radial-Ventilatorrad
DE2927147A1 (de) * 1979-07-05 1981-01-08 Hans Kohl Radialgeblaese

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1665458A (en) * 1926-05-03 1928-04-10 Byron Jackson Pump Mfg Co Acid pump
US2126230A (en) * 1934-08-18 1938-08-09 Ralph P Clarkson Distributing means
US3130679A (en) * 1962-12-07 1964-04-28 Allis Chalmers Mfg Co Nonclogging centrifugal pump
US3344766A (en) * 1965-10-18 1967-10-03 Eric C Cottell Rotating liquid whistle
FR2076426A5 (de) * 1970-01-14 1971-10-15 Cit Alcatel
US3627440A (en) * 1970-04-07 1971-12-14 Westinghouse Electric Corp Centrifugal fan
FI69683C (fi) * 1982-02-08 1986-03-10 Ahlstroem Oy Centrifugalpump foer vaetskor innehaollande fasta aemnen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR863235A (fr) * 1939-09-13 1941-03-27 Perfectionnements dans les souffieries et les aspirateurs rotatifs
GB796696A (en) * 1955-07-19 1958-06-18 Davidson & Co Ltd Improvements in or relating to centrifugal fans
DE1503607A1 (de) * 1964-06-30 1969-01-30 Shelley Donald Percy Hochtemperaturgeblaese
CH516743A (de) * 1970-12-01 1971-12-15 Gema Ag App Bau Radial-Ventilatorrad
DE2927147A1 (de) * 1979-07-05 1981-01-08 Hans Kohl Radialgeblaese

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2711397A1 (fr) * 1993-10-20 1995-04-28 Bosch Gmbh Robert Ventilateur adapté à l'habitacle d'un véhicule automobile.
DE4335686B4 (de) * 1993-10-20 2006-07-27 Robert Bosch Gmbh Gebläse
CN104632687A (zh) * 2015-01-06 2015-05-20 辽宁伊菲科技股份有限公司 一种高温环境下提高轴流风机电机寿命及性能的装置

Also Published As

Publication number Publication date
FR2595767A1 (fr) 1987-09-18
JPS62265498A (ja) 1987-11-18
ES2017504B3 (es) 1991-02-16
FR2595767B1 (fr) 1988-07-08
US4915583A (en) 1990-04-10
EP0242248B1 (de) 1990-09-05
DE3764693D1 (de) 1990-10-11

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