EP0108922B1 - Ventilateur axial pour machine à carburant refroidi par l'air - Google Patents

Ventilateur axial pour machine à carburant refroidi par l'air Download PDF

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Publication number
EP0108922B1
EP0108922B1 EP83110032A EP83110032A EP0108922B1 EP 0108922 B1 EP0108922 B1 EP 0108922B1 EP 83110032 A EP83110032 A EP 83110032A EP 83110032 A EP83110032 A EP 83110032A EP 0108922 B1 EP0108922 B1 EP 0108922B1
Authority
EP
European Patent Office
Prior art keywords
air
area
axial fan
impeller
casing
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.)
Expired
Application number
EP83110032A
Other languages
German (de)
English (en)
Other versions
EP0108922A1 (fr
Inventor
Hans Weitzenbürger
Helmut Dipl.-Ing. Bücken
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz AG
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
Priority claimed from DE19823242185 external-priority patent/DE3242185A1/de
Priority claimed from DE19823242186 external-priority patent/DE3242186A1/de
Application filed by Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Priority to AT83110032T priority Critical patent/ATE23911T1/de
Publication of EP0108922A1 publication Critical patent/EP0108922A1/fr
Application granted granted Critical
Publication of EP0108922B1 publication Critical patent/EP0108922B1/fr
Expired 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers

Definitions

  • the invention relates to axial fans for air-cooled internal combustion engines according to the preamble of claim 1.
  • the outer diameter of the fan jacket of the cooling air fan also has a significant influence on the dimensions of the internal combustion engine. Efforts are therefore made to design the outside diameter as small as possible so that the overall dimensions of the internal combustion engine can be reduced.
  • the blower jacket of the cooling air blower it should be noted that neither the flow of the intake air is disturbed, nor the intake air volume and the delivery pressure of the blower, or the blower output has to be increased in order to obtain the same performance as before.
  • an axial blower is known, the air guide wheel and impeller of which are arranged one behind the other in a section of the blower jacket of constant outer diameter.
  • the inlet area to the blower jacket is rounded and widens, so that its outer contour is larger than the outer diameter of the remaining blower jacket.
  • an axial blower is known to be known, the inlet area of which - starting from the inner diameter of the blower casing - widens in a funnel shape in the impeller area. Since the blower jacket also widens conically in the direction of flow in the impeller area, such an axial blower requires a considerable installation volume.
  • the air guide wheel axially in front of the impeller in the flow direction of the cooling air and to design the rounded inlet area of the blower casing of the axial blower so that the outer contour of the blower casing is less than or equal to the outer circumference of the casing casing in the impeller area.
  • This design does not have a negative influence on the flow of the intake cooling air and nevertheless the inlet area is not larger than the blower jacket diameter in the area of the impeller.
  • the installation volume of the cooling air blower is considerably reduced, so that the installation dimensions of the associated internal combustion engine are also reduced.
  • the fan jacket is advantageously constricted by a circumferential radial constriction. This is easy to manufacture technically (claim 2).
  • the solution to the problem according to claim 4 has the advantage that no recesses, indentations and. ⁇ . Must be made to serve as an air baffle.
  • the proposed wing-shaped cross section of the insert according to claim 5 ensures optimal flow conditions.
  • a particularly aerodynamically simple design specifies claim 7. This results in optimal flow conditions in the inlet area and easy attachment of the insert by shrinking or screw connections arranged radially from the outside.
  • the figures schematically show a cross section through an axial fan 1, consisting of an impeller 2, a guide impeller 3, the hub 4 and a housing jacket 5.
  • the impeller 2 is in a manner known per se by means of a V-belt from the crankshaft or an intermediate shaft shown internal combustion engine driven.
  • the guide wheel 3 is shrunk with the hub 4 into the housing shell 5.
  • the outlet area 7 of the inlet radius 6, which is at the rear in the direction of flow, is designed to extend into the region of the guide wheel 3 in the case of axially small-sized fans.
  • the guide vane 3 is fastened in the blower jacket 5 by shrinking, it is difficult to provide the run-out area 7 into the guide vane area 3, because then reduced adhesive forces can occur during and after shrinking. In this case, it is then better to move the inlet radius 6 axially forward with an outlet area 7 to such an extent that there is no longer any deformation of the blower jacket 5 in the stator area 3.
  • the blower jacket 5 has a constant outer circumference both in the inlet area and in the area of the impeller 2.
  • the rear region 7 of the insert 8 in the direction of flow in the case of axially small fans is designed to extend into the region of the guide wheel 3.
  • the guide vane 3 is fastened in the blower casing 5 by shrinking, it is advantageous to provide the insert 8 as far as into the guide vane region 3 and to produce both in one piece.
  • the insert 8 Due to the front likewise rounded edge 9 of the insert 8 and its gripping around the front edge of the blower jacket 5, a flow-optimized inlet area is created without changing the outside diameter of the blower jacket.
  • the insert 8 is easy and safe to attach due to this design, e.g. by shrinking or radially arranged screws.
  • Fig. 3 shows a partial cross section of the insert 8 with its front edge 9 and the shoulder 10 for receiving the blower jacket 5. Furthermore, the wing-shaped cross section of the insert 8 can be seen from this illustration.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Claims (7)

1.- Ventilateur axial pour un moteur à combustion interne refroidi par l'air, avec une roue directrice d'air (3) et une roue mobile (2) pour produire le courant d'air de refroidissement, ces roues étant disposées axialement l'une derrière l'autre, dans un carter de ventilateur (5) avec un diamètre constant dans la zone de la roue mobile, tandis qu'à l'entrée du carter (5) du ventilateur, il est prévu une zone d'entrée arrondie (6) jouat le rôle de surface directrice d'air, ventilateur caractérisé en ce que la roue directrice d'air (3) est disposée , dans le sens d'écoulement de l'air de refroidissement, axialement devat la roue mobile (2) et la zone d'entrée arrondie du carter (5) du ventilateur axial (1) , et que le contour externe du carter (5) du ventilateur, dans la totalité de la zone d'entrée (6), est inférieur ou égal à la périphérie externe du carter de ventilateur dans la zone de la roue mobile.
2.- Ventilateur axial selon la revendication 1 , caractérisé en ce que le carter (5) du ventilateur dans la zone du rayon d'entrée (6) comporte un rétrécissement radial périphérique jouant le rôle de surface directrice d'air.
3.- Ventilateur axial selon la revendication 1 ou 2, caractérisé en ce que la sortie (7) du rétrécissement radial, vue dans le sens de passage de l'air aspiré, s'étend jusque dans la zone de la roue directrice d'air (3).
4.- Ventilateur axial selon la revendication 1, caractérisé en ce que dans la zone d'entrée, il est prévu une garniture (8) qui constitue une surface directrice d'air adaptée aux conditions d'écoulement.
5.- Ventilateur axial selon la revendication 4, caractérisé en ce que la garniture (8) a une section transversale en forme d'aile.
6.- Ventilateur axial selon la revendication 4 ou 5, caractérisé en ce que la garniture (8) est réalisée d'une seule pièce avec la roue directrice d'air (3).
7.- Ventilateur axial selon une des revendications 4 à 6, caractérisé en ce que la garniture (8) est introduite dans le carter (5) du ventilateur dans le sens d'écoulement de l'air qui y pénètre et comporte sur sa périphérie externe, un épaulement (10) dont la profondeur est égale à l'épaisseur du carter (5) du ventilateur.
EP83110032A 1982-11-15 1983-10-07 Ventilateur axial pour machine à carburant refroidi par l'air Expired EP0108922B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83110032T ATE23911T1 (de) 1982-11-15 1983-10-07 Axialgeblaese fuer luftgekuehlte brennkraftmaschine.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3242185 1982-11-15
DE19823242185 DE3242185A1 (de) 1982-11-15 1982-11-15 Luftgekuehlte brennkraftmaschine
DE19823242186 DE3242186A1 (de) 1982-11-15 1982-11-15 Luftgekuehlte brennkraftmaschinen
DE3242186 1982-11-15

Publications (2)

Publication Number Publication Date
EP0108922A1 EP0108922A1 (fr) 1984-05-23
EP0108922B1 true EP0108922B1 (fr) 1986-11-26

Family

ID=25805788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83110032A Expired EP0108922B1 (fr) 1982-11-15 1983-10-07 Ventilateur axial pour machine à carburant refroidi par l'air

Country Status (2)

Country Link
EP (1) EP0108922B1 (fr)
DE (1) DE3367962D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1443216A2 (fr) 2003-01-29 2004-08-04 BorgWarner Inc. Ventilateur de refroidissement pour moteur à combustion

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006009845A1 (de) * 2006-03-01 2007-09-13 Behr Gmbh & Co. Kg Lüfterzarge für einen Wärmeübertrager und Anordnung eines Axiallüfters in einer Lüfterzarge

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1360211A (fr) * 1963-03-04 1964-05-08 A De Jong N V Ventilateur axial
FR2386706A1 (fr) * 1977-04-05 1978-11-03 Neu Ets Perfectionnement aux ventilateurs helicoides

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1443216A2 (fr) 2003-01-29 2004-08-04 BorgWarner Inc. Ventilateur de refroidissement pour moteur à combustion

Also Published As

Publication number Publication date
DE3367962D1 (en) 1987-01-15
EP0108922A1 (fr) 1984-05-23

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