EP2333346B1 - Lüfter für eine Brennkraftmaschine - Google Patents

Lüfter für eine Brennkraftmaschine Download PDF

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Publication number
EP2333346B1
EP2333346B1 EP10192447.0A EP10192447A EP2333346B1 EP 2333346 B1 EP2333346 B1 EP 2333346B1 EP 10192447 A EP10192447 A EP 10192447A EP 2333346 B1 EP2333346 B1 EP 2333346B1
Authority
EP
European Patent Office
Prior art keywords
fan
hub
blade
recesses
cooling
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.)
Not-in-force
Application number
EP10192447.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2333346A2 (de
EP2333346A3 (de
Inventor
Uwe Aschermann
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Mahle Behr 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 Mahle Behr GmbH and Co KG filed Critical Mahle Behr GmbH and Co KG
Publication of EP2333346A2 publication Critical patent/EP2333346A2/de
Publication of EP2333346A3 publication Critical patent/EP2333346A3/de
Application granted granted Critical
Publication of EP2333346B1 publication Critical patent/EP2333346B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • F04D29/5806—Cooling the drive system

Definitions

  • the invention relates to a fan according to the preamble of claim 1.
  • Such a fan is for example from the WO 2008/146154 known.
  • Electric fans are used in the prior art, inter alia, in engine cooling fans.
  • Such electric fans with, for example, an axial fan wheel have as drive to an electric motor, which is arranged within a hub of the fan.
  • an electric motor which is arranged within a hub of the fan.
  • a cooling fan assembly for an internal combustion engine in which a fan includes a hub with an inner and an outer hub portion, wherein the inner hub portion defines a substantially flat end and is coupled to a drive shaft.
  • the outer hub portion extends both radially and axially with respect to a center axis of the fan.
  • the ventilator also includes a plurality of blades extending radially from an axially extending portion of the outer hub portion.
  • the fan includes a plurality of ribs provided on an inner surface of the inner boss portion and on an inner surface of the outer boss portion.
  • a fan for an internal combustion engine which comprises an electric motor driven in a hub fan wheel, which is formed with a plurality of arranged on the hub fan blades, wherein the hub is formed with a hub face and a hub shell surface, wherein in the Nabenmantelfambae a plurality of recesses is provided, which divide the hub shell surface into a plurality of blade-like elements.
  • the hub of the fan essentially has an arrangement which corresponds to the suction side of a radial fan.
  • the configuration according to the invention has improved. Leakage air flows are avoided in this way, and effective cooling performance can be ensured in a structurally simple and thus cost-effective manner.
  • the configuration according to the invention also has the advantage that the hub can thereby be made smaller.
  • each of the plurality of recesses is arranged in each case between two fan blades.
  • each of the plurality of recesses is in the form of a slot extending substantially from a first portion of the hub shell surface adjacent to the hub face to a second portion of the hub shell surface terminating at an open end of the hub.
  • each of the plurality of recesses extends substantially perpendicular to the hub face
  • each blade-like element has a front edge and a rear edge.
  • each recess forms each of the leading edge of a blade-like member and the trailing edge of an adjacent blade-like member.
  • the front edge of the blade-like member and the rear edge of the adjacent blade-like member are spaced from each other in a radial direction of the fan.
  • the hub of the fan is advantageously designed in its shape as the suction side of a radial fan, which causes the directional cooling air flow already described.
  • the fan is an axial fan.
  • the hub on the pressure side of the fan forms a substantially cup-shaped receptacle, in which the electric motor is arranged.
  • each of the plurality of paddle-shaped members has an inner side and an outer side.
  • At least one cooling rib is arranged on the inside.
  • the new air flow can be achieved by providing cooling ribs and a corresponding design of the cooling rib inside the hub supports effective way and thus the cooling effect can be further improved.
  • the hub end face has a suction-side front side and a pressure-side rear side opposite the front side.
  • the cooling rib extending from the inside of the schauelförmelförmigen element to the back of the hub face.
  • At least one opening in particular a plurality of openings, is provided on the hub end face. Through the additional openings, air can be conveyed in the direction of the air flow of the fan. Leakage airflows are effectively avoided.
  • the at least one cooling fin is substantially L-shaped.
  • Fig. 1 shows a perspective view of a fan 1 according to an embodiment from the front or viewed from the suction side of the fan 1 as it is used for an internal combustion engine of a motor vehicle for cooling.
  • the fan 1 is designed as an axial electric fan, which has a fan wheel 2 with five fan blades 3, which are arranged on a hub 4 between an outer ring 5 and a Nabenmantelfikiee 6.
  • the hub shell surface 6 adjoins a hub end face 8 with a first section 7.
  • evenly spaced recesses 9 are provided around the circumference of the hub 4, which slots extend from the first portion 7 to a terminating at an open end of the hub 4 second portion 10 of the hub shell surface 6.
  • the hub shell surface 6 of the hub 4 is divided into a plurality of blade-like elements 12, whereby the hub 4 is configured in its shape as the suction side of a radial fan.
  • Each blade-like element 12 has a front edge 13 and a rear edge 14.
  • the slot-like recesses 9 extend substantially perpendicular to the hub end face 8.
  • the front edge 13 of a blade-like element 12 and the rear edge 14 are respectively an adjacent blade-like member 12 'in a radial direction of the fan 2 and the fan 1 from each other.
  • Fig. 2 shows a perspective view of the in Fig. 1 Fan 1 as viewed from the rear or in the air flow direction from the pressure side of the fan 1.
  • the blade-like elements 12 form a substantially toplike receptacle 15 for the electric motor shown schematically here 16.
  • Each blade-like element 12 has an outer side 17 and an inner side 18 opposite the outer side 17.
  • On each blade-like member 12, a fan blade 3 is disposed on the respective outer side 17 in the embodiment.
  • Fig. 3 shows a section of the fan 1 of Fig. 1 viewed from the rear or from the pressure side of the fan 1.
  • the individual blade-like elements 12 of the hub 4 form a pot-shaped receptacle 15, in which the electric motor 16, not shown here, can be accommodated.
  • cooling rib 19 are provided on the inside 18 of each paddle-shaped element.
  • the cooling rib 19 are formed substantially L-shaped and extend respectively from the inner side 18 of the respective paddle-shaped elements 12 to a pressure-side rear side 20 of the hub end face 8.
  • Fig. 4 shows a section of a fan 1 according to another embodiment, viewed from the rear or from the pressure side of the fan 1.
  • the embodiment shown here differs from that in FIG Fig. 3 illustrated embodiment only in that in the hub end face 8 of the hub 4 additional openings 21 are provided, through which air in the direction of the air flow L of the fan 1 can be promoted without leakage air currents occur.
  • Fig. 5 shows a perspective view of the fan 1 of Fig. 4 viewed from the front or from the suction side of the fan 1.
  • the hub 4 in addition to the recesses 12 in the hub shell surface 6 additional openings 21 in the hub end face 8, of which here the pressure-side rear side (not shown) opposite suction side Front 22 is visible.
  • the openings 21 extend from the suction-side front side 22 to the pressure-side rear side 20 of the hub end face 8.
  • Fig. 6 shows a sectional view of the fan 1 of Fig. 5 , wherein the air flow indicated by L is shown schematically by an arrow.
  • The. Air enters through the openings 21 on the suction-side front side 22 of the hub end face 8 and exits at the pressure-side rear side 20 of the hub end face, where it flows around the electric motor 16 and is conducted to the main air flow of the fan 1.
EP10192447.0A 2009-11-25 2010-11-24 Lüfter für eine Brennkraftmaschine Not-in-force EP2333346B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009055609A DE102009055609A1 (de) 2009-11-25 2009-11-25 Lüfter für eine Brennkraftmaschine

Publications (3)

Publication Number Publication Date
EP2333346A2 EP2333346A2 (de) 2011-06-15
EP2333346A3 EP2333346A3 (de) 2013-01-30
EP2333346B1 true EP2333346B1 (de) 2017-02-15

Family

ID=43566655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10192447.0A Not-in-force EP2333346B1 (de) 2009-11-25 2010-11-24 Lüfter für eine Brennkraftmaschine

Country Status (2)

Country Link
EP (1) EP2333346B1 (un)
DE (1) DE102009055609A1 (un)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017203731A1 (de) 2017-03-07 2018-09-13 Mahle International Gmbh Lüfter mit Motorhalter und Lüfterrad
KR102190417B1 (ko) * 2018-06-12 2020-12-11 엘지전자 주식회사 천장 팬 및 그 제어방법
IT202100016532A1 (it) * 2021-06-23 2021-09-23 General Cab S R L Elettroventilatore assiale perfezionato per motori elettrici

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1219837A2 (de) * 2001-01-02 2002-07-03 Behr GmbH & Co. Lüfter mit Axialschlaufen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3127518A1 (de) 1981-07-11 1983-01-27 Maico Elektroapparate-Fabrik GmbH, 7730 Villingen-Schwenningen Axialventilator
DE19929978B4 (de) * 1999-06-30 2006-02-09 Behr Gmbh & Co. Kg Lüfter mit Axialschaufeln
DE10044066A1 (de) 2000-09-07 2002-04-04 Stribel Gmbh Elektrischer Lüfter
DE602004012549T2 (de) 2003-04-28 2008-07-10 Robert Bosch Llc Kühllüfteranordnung für kraftwagenbrennkraftmaschine
ITBO20070380A1 (it) * 2007-05-30 2008-11-30 Spal Automotive Srl Unita' di ventilazione

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1219837A2 (de) * 2001-01-02 2002-07-03 Behr GmbH & Co. Lüfter mit Axialschlaufen

Also Published As

Publication number Publication date
EP2333346A2 (de) 2011-06-15
EP2333346A3 (de) 2013-01-30
DE102009055609A1 (de) 2011-05-26

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