EP2724031A1 - Kraftfahrzeug-lüfterrad mit verstärktem deckband - Google Patents
Kraftfahrzeug-lüfterrad mit verstärktem deckbandInfo
- Publication number
- EP2724031A1 EP2724031A1 EP12732970.4A EP12732970A EP2724031A1 EP 2724031 A1 EP2724031 A1 EP 2724031A1 EP 12732970 A EP12732970 A EP 12732970A EP 2724031 A1 EP2724031 A1 EP 2724031A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fan
- cross
- leg
- radial
- outer ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- F04D29/26—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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially 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
- F04D29/326—Rotors specially for elastic fluids for axial flow pumps for axial flow fans comprising a rotating shroud
Definitions
- the invention relates to a fan of a motor vehicle, in particular a main fan of an internal combustion engine, with a fan wheel comprising an outer ring.
- the Zargenmaschine has a substantially round recess, within which a fan of the fan is located.
- the plane in which the fan is located, is substantially parallel to the radiator.
- a connected to the fan electric motor is conventionally fixed at the front by means of screws to a rigid support, wherein the holder is held by means such as radial, tangential or curved struts in the center of the recess.
- the struts in turn are firmly connected to the frame body.
- the invention has for its object to provide a particularly suitable fan and an associated fan.
- the fan-related object is achieved by the features of claim 1.
- Advantageous developments and refinements are the subject of the dependent claims.
- the task relating to a fan is achieved according to the invention by the features of claim 6.
- the fan which is designed in particular as the main fan of an internal combustion engine, comprises a fan wheel, which is preferably set into a rotational movement by means of a conventional electric motor.
- the internal combustion engine which directly or indirectly serves the propulsion of the motor vehicle, drives the fan wheel itself, e.g. over a belt or a gear.
- the fan wheel comprises a number of fan blades, by means of which an air flow is generated during a rotational movement of the fan wheel. On the circumference of the fan blades are connected by means of an outer ring, wherein the outer ring has an L-shaped annular cross-section.
- the ring cross section is essentially formed from a radial leg and an axial leg, to which the fan blades are connected.
- the axial leg in particular runs parallel to the axis of rotation of the fan wheel and surrounds the fan blades in a hollow-cylindrical manner.
- the radial leg extends substantially perpendicular to the axial leg and in particular in a radial direction to the axis of rotation.
- the radial leg is connected on one side to the axial leg.
- the radial leg has a cross-sectional enlargement.
- the cross-sectional enlargement leads to an increased stability of the radial leg, so that during a rotational movement of the fan wheel, the radial leg has comparatively low vibrations. As is known, this avoids disturbing noises and unbalances. Further, the increased stability of the radial leg results in less deformation thereof in the direction of the axis of rotation during operation of the fan.
- the side facing away from the axial leg of the radial leg is flat and consequently the cross-sectional enlargement such that the side facing the axial leg of the radial leg freud lake has a bulge.
- the cross-sectional enlargement is bead, rectangle or triangular.
- the cross-sectional enlargement is formed on the radial leg and in particular integral therewith.
- the fan is made in one piece from a plastic. The cross-sectional enlargement thus represents a bend at the free end of the radial leg.
- the cross-sectional enlargement is substantially circumferentially circumferential.
- the cross-sectional enlargement of the radial leg is present at any cross section along the axis of rotation of the fan through the outer ring.
- the cross-sectional enlargement is constant.
- the cross-sectional enlargement is not formed circumferentially, but rather interrupted in the manner of teeth or teeth. Consequently, the radial leg has the cross-sectional enlargement only at certain cross sections along the axis of rotation.
- the prongs may be arranged irregularly circumferentially along the circumference of the outer ring. The distances of the teeth thus vary.
- the radial leg merges into the axial leg.
- the outer ring comprises a reduction in cross-section, which has, for example, the shape of a bead.
- the outer ring tends to undergo an undesired deformation during cooling, which is also referred to as distortion.
- the two legs are bent towards each other, resulting in an unwanted reduction in the angle between the two legs.
- the reduction in cross section serves to positively influence the distortion to the extent that it does not take place, or at least comparatively little, with a predominantly uniform cooling.
- the angle between the two legs and the shape of the outer ring remain substantially constant.
- the introduction of the cross-sectional reduction at the outer ring in the region of the transition between the radial leg and the axial leg can also take place independently of the free-end cross-sectional enlargement of the radial leg and is regarded as an independent invention.
- the radial leg in particular the axial leg facing side of the radial leg, the cross-sectional reduction.
- the cross-sectional reduction is suitably introduced circumferentially in the manner of a bead in the radial leg.
- a region having a normal cross-section Between the cross-sectional reduction and the cross-sectional enlargement of the radial leg is a region having a normal cross-section.
- the radial limb has at least three regions with different cross-sections, the cross-sections of which decrease from its free end to the region closest to the axial limb.
- the axial leg facing away from the side of the radial leg is flat.
- the fan has a frame with a frame body and a frame ring.
- Zargenring is hereby a depression within the Zargen Sciencess understood, wherein the recess extends annularly around a recess within the Zargen Sciencess around.
- the radial leg is at least partially engaged, and is preferably substantially parallel to the surface of the bezel body about the bezel ring.
- the radial leg is located substantially in front of the axial leg.
- an air gap resulting between the frame and the fan wheel is partially filled by means of the cross-sectional enlargement of the radial leg.
- FIG. 1 is a perspective view of a fan with an outer ring
- FIG. 2 shows a perspective, fragmentary view of an alternative embodiment of the L-shaped outer ring
- Fig. 3 is a sectional view of the fan within a frame
- Fig. 4 shows a detail IV of Fig. 3 on a larger scale with the partially inserted in a Zargenring outer ring.
- a fan 2 is shown in perspective, which is made in one piece from a plastic, in particular polyamide.
- the fan 2 is heated comparatively strong during its production. For example, that will Fan 2 pressed, cast or manufactured by injection molding.
- a number of fan blades 6 are arranged around a central hub 4.
- An electric motor 8 (FIG. 3) can be connected to the hub 4, which is then in operative connection with the fan wheel 2.
- the fan blades 6 are each designed such that during a rotational movement of the fan wheel 2 around the hub 4 along an axis of rotation x by means of the electric motor 8 an air flow along the axis of rotation x is generated.
- the fan blades 6 are surrounded by an outer ring 10, which among other things serves to stabilize the fan blades 6 during the rotational movement. By means of the outer ring 10, the air flow is directed, and the aerodynamic properties of the fan 2 are improved.
- the outer ring 10 has an L-shaped cross section with a radial leg 12 and an axial leg 14.
- the axial leg 12 is parallel to the axis of rotation x and communicates with the fan blades 6.
- the radial leg 14 is arranged at right angles to the axial leg 12 and extends from the hub 4 located in the center of the fan 2 in a radial direction y away on the outside.
- the distance of the radial leg 14 is substantially greater than that of the axial leg 12 of the hub 4.
- Freendend the radial leg has a cross-sectional enlargement 16 in the form of a bend.
- the cross-sectional enlargement 16 is executed completely circumferential.
- the cross-sectional enlargement 16 would result in a closed ring if it were released from the radial leg 14.
- the outer edge of the axial leg 12 is stabilized, so that no or only comparatively weak vibrations of the radial leg 14 occur during the rotational movement of the fan wheel 2.
- the radial leg 14 is bent comparatively small in the direction of the axis of rotation x.
- the outer ring 10 has a cross-sectional reduction 20 in the form of a bead. Upon cooling of the fan 2, this tends to deform.
- Fig. 2 shows a perspective view of an alternative embodiment of the outer ring 10, wherein the outer ring 10 is cut along a plane along the axis of rotation x.
- the cross-sectional reduction 20 in turn has a substantially rectangular cross-section and is fully inserted into the radial leg 14.
- the cross section of the axial leg 12 is substantially constant.
- the outer edge is rounded.
- the cross-sectional enlargement 16 shown in FIG. 2 is not circumferential.
- the cross-sectional enlargement 16 is rather located at certain areas of the radial leg 14 along the circumference of the outer ring 10.
- the cross-sectional enlargement 16 forms a number of teeth 24, the respective distance to each other, as shown here, vary or may be constant. Also, a variation of the length of the teeth 24 along the circumference, or in the radial direction is possible. In this way, for example, unbalances of the fan 2 can be corrected or specifically brought about.
- Both the cross-sectional reduction 20 and the cross-sectional enlargement 16 are located on the axial leg 12 facing side of the radial leg 14. In this way, results in a flat surface, on the side of the radial leg 14 which faces away from the axial leg 12.
- Fig. 3 shows a sectional detail of the fan 2, along the sectional plane explained in Fig. 2.
- Fig. 4 shows an enlarged detail of Figure 3.
- here is the cross-sectional enlargement 16 - comparable to the cross-sectional enlargement 16 shown in Fig. 1 - completely encircling.
- a Zargenring 26 a frame 28 with a Zargen Economics 30.
- the Zargenring 26 refers to a recess within the Zargen analysess 30 which extends annularly around a recess 32 within the Zargen analysess 30 around, wherein the fan blades 6 are located within the recess 32.
- the radial leg 14 is partially within the Zargenrings 26, wherein the flat side of the radial leg 14 is substantially parallel to the surface of the Zargen analysess 30 and lies in a plane extending in the radial direction y, wherein the rotation axis x perpendicular stands on this level.
- the air flow generated by means of the fan wheel 2 is directed by means of the frame 28 through the recess 32, wherein the radial leg 14 is located along the air flow in front of the axial leg 12.
- both the frame 28 and the electric motor 8 and the fan 2 are part of a fan 34 of a motor vehicle with an internal combustion engine, which drives directly, for example via a transmission or indirectly, in the manner of a so-called hybrid drive, the motor vehicle ,
- the internal combustion engine is cooled directly or indirectly.
- Indirect cooling is accomplished by cooling the internal combustion engine by means of a cooling fluid which is in heat exchange for cooling with a conventional radiator.
- the fan 34 and in particular the frame 28 is mounted. The air flow generated by the fan 34 flows through the radiator and thus cools it.
- the invention is not limited to the embodiments described above.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011105451A DE102011105451A1 (de) | 2011-06-22 | 2011-06-22 | Lüfter eines Kraftfahrzeugs |
PCT/EP2012/002519 WO2012175179A1 (de) | 2011-06-22 | 2012-06-15 | Kraftfahrzeug-lüfterrad mit verstärktem deckband |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2724031A1 true EP2724031A1 (de) | 2014-04-30 |
EP2724031B1 EP2724031B1 (de) | 2017-08-09 |
Family
ID=46466408
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12732970.4A Not-in-force EP2724031B1 (de) | 2011-06-22 | 2012-06-15 | Kraftfahrzeug-lüfterrad mit verstärktem deckband |
Country Status (6)
Country | Link |
---|---|
US (1) | US9765794B2 (de) |
EP (1) | EP2724031B1 (de) |
CN (1) | CN103620229B (de) |
DE (1) | DE102011105451A1 (de) |
ES (1) | ES2641252T3 (de) |
WO (1) | WO2012175179A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10174481B2 (en) * | 2014-08-26 | 2019-01-08 | Cnh Industrial America Llc | Shroud wear ring for a work vehicle |
KR101996052B1 (ko) * | 2016-11-01 | 2019-07-03 | 엘지전자 주식회사 | 공기조화기 |
DE102017116352A1 (de) * | 2017-07-20 | 2019-01-24 | Brose Fahrzeugteile Gmbh & Co. Kg, Würzburg | Kühlerlüftermodul |
US11028858B2 (en) * | 2019-09-19 | 2021-06-08 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Integrated downstream funnel |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358245A (en) * | 1980-09-18 | 1982-11-09 | Bolt Beranek And Newman Inc. | Low noise fan |
WO1993005275A1 (en) * | 1991-08-30 | 1993-03-18 | Airflow Research And Manufacturing Corporation | Forward skew fan with rake and chordwise camber corrections |
FR2683598B1 (fr) * | 1991-11-07 | 1994-03-04 | Ecia | Virole annulaire profilee pour helice de ventilateur et son application aux motoventilateurs d'automobile. |
KR100467331B1 (ko) * | 1997-06-05 | 2005-04-08 | 한라공조주식회사 | 휀과,휀쉬라우드조립체 |
CN1236866A (zh) * | 1998-05-25 | 1999-12-01 | 尹顿公司 | 具有增大的扇叶面积的风扇组件 |
AU3791001A (en) * | 1999-10-29 | 2001-05-14 | Robert Bosch Corporation | Mount for connecting automotive fan motor to housing |
US6755157B1 (en) | 1999-10-29 | 2004-06-29 | Robert Bosch Corporation | Mount for connecting automotive fan motor to housing |
US6508624B2 (en) * | 2001-05-02 | 2003-01-21 | Siemens Automotive, Inc. | Turbomachine with double-faced rotor-shroud seal structure |
CN1288349C (zh) | 2003-03-28 | 2006-12-06 | 三星电子株式会社 | 轴流式风扇组件 |
DE102004005028A1 (de) | 2004-01-30 | 2005-09-01 | Behr Gmbh & Co. Kg | Befestigungsanordnung, Antriebsvorrichtung, Lüfterzarge und Wärmeübertrageranordnung |
DE102004034733A1 (de) | 2004-07-17 | 2006-02-16 | Siemens Ag | Kühlerzarge mit wenigstens einem elektrisch angetriebenen Lüfter |
US7086825B2 (en) * | 2004-09-24 | 2006-08-08 | Carrier Corporation | Fan |
DE102004000502A1 (de) | 2004-09-27 | 2006-03-30 | Peters, Jörn | Unterdruck-Rauchfilter und -sammler |
DE102005008794A1 (de) | 2005-02-25 | 2006-09-07 | Siemens Ag | Elektromotorischer Antrieb |
DE102006023417A1 (de) * | 2006-05-17 | 2007-11-22 | Ford Global Technologies, LLC, Dearborn | Lüfterrad als Bestandteil eines Lüfters zur Kühlung eines Kraftfahrzeugantriebs |
DE102007031462A1 (de) | 2006-07-06 | 2008-01-10 | Behr Gmbh & Co. Kg | Kühlvorrichtung für ein Kraftfahrzeug |
DE102008046508A1 (de) * | 2008-09-09 | 2010-03-11 | Behr Gmbh & Co. Kg | Lüftervorrichtung zur Belüftung eines Verbrennungsmotors, Kühlsystem mit zumindest einer Lüftervorrichtung |
-
2011
- 2011-06-22 DE DE102011105451A patent/DE102011105451A1/de not_active Withdrawn
-
2012
- 2012-06-15 CN CN201280030975.8A patent/CN103620229B/zh not_active Expired - Fee Related
- 2012-06-15 WO PCT/EP2012/002519 patent/WO2012175179A1/de active Application Filing
- 2012-06-15 ES ES12732970.4T patent/ES2641252T3/es active Active
- 2012-06-15 EP EP12732970.4A patent/EP2724031B1/de not_active Not-in-force
-
2013
- 2013-12-23 US US14/138,336 patent/US9765794B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO2012175179A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN103620229B (zh) | 2016-08-17 |
DE102011105451A1 (de) | 2012-12-27 |
EP2724031B1 (de) | 2017-08-09 |
US20140105746A1 (en) | 2014-04-17 |
ES2641252T3 (es) | 2017-11-08 |
WO2012175179A1 (de) | 2012-12-27 |
CN103620229A (zh) | 2014-03-05 |
US9765794B2 (en) | 2017-09-19 |
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