EP2926013B1 - Dispositif de ventilation et véhicule pourvu d'un dispositif de ventilation - Google Patents

Dispositif de ventilation et véhicule pourvu d'un dispositif de ventilation Download PDF

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Publication number
EP2926013B1
EP2926013B1 EP13802533.3A EP13802533A EP2926013B1 EP 2926013 B1 EP2926013 B1 EP 2926013B1 EP 13802533 A EP13802533 A EP 13802533A EP 2926013 B1 EP2926013 B1 EP 2926013B1
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EP
European Patent Office
Prior art keywords
fan
opening
central axis
peripheral sections
ventilation device
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.)
Active
Application number
EP13802533.3A
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German (de)
English (en)
Other versions
EP2926013A2 (fr
Inventor
Thomas Dreesen
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.)
Brose Fahrzeugteile SE and Co KG
Original Assignee
Brose Fahrzeugteile SE and Co KG
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Publication of EP2926013A2 publication Critical patent/EP2926013A2/fr
Application granted granted Critical
Publication of EP2926013B1 publication Critical patent/EP2926013B1/fr
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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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of 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
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/06—Guiding or ducting air to, or from, ducted 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
    • F04D19/00—Axial-flow pumps
    • F04D19/002—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
    • 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
    • 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
    • F04D29/522—Casings; Connections of working fluid for axial pumps 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F04D29/526—Details of the casing section radially opposing blade tips
    • 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
    • F04D29/545—Ducts
    • 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
    • F04D29/545—Ducts
    • F04D29/547—Ducts having a special shape in order to influence fluid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P2070/00—Details
    • F01P2070/50—Details mounting fans to heat-exchangers

Definitions

  • the invention is in the field of mechanical engineering and relates to a fan device and a vehicle with a fan device, wherein such a fan device of increasing the air flow, for example, for cooling purposes, can serve.
  • an internal combustion engine is usually provided in the drive train, which requires cooling. Since for this purpose the heat radiation and convection is not sufficient, such a cooling process is usually supported by a cooling air flow, which can be generated on the one hand by the wind during travel of the vehicle, on the other hand is usually supported by a fan device.
  • a cooling air flow which can be generated on the one hand by the wind during travel of the vehicle, on the other hand is usually supported by a fan device.
  • a cooling air flow which can be generated on the one hand by the wind during travel of the vehicle, on the other hand is usually supported by a fan device.
  • the interposition of a cooler device in the form of a fluid cooling circuit is useful, wherein a heat exchanger (cooler) is exposed to the travel air flow and the air flow of a fan device.
  • Such a fan device usually has a drivable fan wheel, which has a conveying element for air in the form of a screw, a paddle wheel or a propeller.
  • a fan is mounted so that it is held within a through opening in a fan cowl or generally surrounding the opening in the radial direction socket.
  • the efficiency of the fan device is particularly high when the gap between the fan and the edge of the opening in the fan cowl is as small as possible.
  • an electrically powered fan in a vehicle to increase the wind and to operate a cooling device in the vehicle.
  • a cooler network is arranged in the air flow thus generated, which is interspersed with pipes, which are traversed by a coolant.
  • the coolant produces a heat exchange with the unit to be cooled.
  • the fan is electrically driven there.
  • the JP 56367620 U shows in Fig. 1 a fan in a front view, wherein the fan frame has an opening for the fan, which has the shape of a plurality of partially overlapping, mutually displaced circles in the manner of a long hole in the DE 19857926 A1 discloses a fan device in the context of an internal combustion engine, wherein a fan wheel is arranged in a fan housing and surrounded by an approximately circular ring body. The annular gap between the contour of the impeller and the ring body is larger on one side of the impeller than on the other side.
  • the DE 102011009779 A1 shows ( fig.1 . 2 and 5 ) A fan of a motor vehicle with a fan wheel, which runs in a frame, wherein also a planar, louver-like fan cover is provided, which can be pulled automatically in front of the fan.
  • the DE 20003276 U1 describes a cooler device for heat exchangers, in particular for motor vehicles, wherein at least one fan impeller in a circular opening (see D4, FIG. Fig. 1 ), and wherein the aisle is partially covered by a wall piece.
  • the DE 202009009560 U1 describes a heat exchanger for a motor vehicle with a fan.
  • the US 2009/226312 A1 refers to an electronics fan, where the goal of a space-saving design is to be achieved.
  • D6 discloses, in the region of the corners of the frame, the conical surface of the opening for the fan, which is basically cylindrical, in both axial directions to expand conically outwards.
  • the DE 69430488 T2 refers to an axial fan for a radiator, in which a fan wheel is disposed in an opening within a frame, and wherein the fan blades are interconnected by a circumferentially extending ring.
  • the DE 9016496 U1 describes a radiator assembly with a fan wheel having a jacket, ie a ring connecting the tips of the fan blades, which runs in the opening of a fan cowl:
  • the DE 19638518 A1 describes a cooler device with a fan, wherein the motor mount is formed with their struts between the fan and the heat exchanger.
  • the US 5423 660 A discloses a radiator having a heat exchanger and a fan, the fan having a fan and a frame.
  • the present invention is based on the background of the prior art, the object to provide a fan device of the type mentioned, the smallest possible gap between the fan and the edge of the opening in the fan frame even when pivoting the fan device, for example when cornering Vehicle, in which the fan device is installed, allows.
  • a fan device is provided with a socket, in particular a fan cowl, which has a substantially circular through opening for receiving a fan wheel rotating in the opening about its central axis, wherein the opening is bounded by an edge surface circulating substantially cylindrically symmetrically about the central axis. It is also contemplated that in the peripheral surface in two separate, diametrically opposed peripheral portions compared to the cylindrically symmetrical in the other peripheral portions form a radially inwardly projecting circumferential projection of the edge surface is offset axially away from the space provided for the fan wheel space.
  • the edge surface can have different shapes in longitudinal section, which are described in more detail below, for example, it can in Longitudinal section have a circumferential, at least partially radially extending projection in the form of a step, bevel or lip.
  • the cylindrically symmetrical edge surface extends over a more or less large axial length in the direction of the central axis of the opening.
  • the edge surface In longitudinal section, ie in a section parallel to the central axis of the opening, the edge surface, as already mentioned above, does not necessarily have a cylindrical contour, but it can change in the axial direction with respect to the radius, for example in the form of a conical section or one or more Steps or in the form of a circumferential, channel-shaped groove.
  • the corresponding profile may be provided circumferentially over the entire circumference of the opening, with individual axial portions of the edge surface with respect to their radius in the two separate, opposing peripheral portions expanded or, for example in the case of an axial section with a circumferential groove, axially opposite the other peripheral regions are shifted.
  • a kind of labyrinth seal can be provided in the opening between the fan wheel and the edge of the opening by a peripheral step, wherein the fan wheel itself in a region of the opening with a larger radius running, while adjacent the fan wheel, a radially inwardly projecting step is provided in the edge surface of the opening.
  • the contour of the fan wheel may also form a peripheral step, which may be formed complementary to a provided in the edge surface step. This extends the radial / axial gap between the impeller and the edge surface and improves the seal.
  • the edge surface in longitudinal section has at least one extending in the radial direction with respect to the central axis stage and that the radius of the edge surface in at least one cross-sectional area on at least one axial side of the step in two separate, diametrically opposed peripheral portions in comparison to the present in the remaining peripheral portions of the same cross-sectional area radius is at least partially increased.
  • a radially extending step should not only be understood as meaning a step with an edge running perpendicular to the axial direction, but also a step with an edge running obliquely to the axial direction.
  • the embodiment of the invention can provide that the radially inwardly projecting step of the edge surface is arranged in the course of the air flow before or behind the fan.
  • the contour swept by the fan wheel in the course of its rotation may also have a step, which may be designed to be substantially complementary, in particular, to the step in the edge surface. This creates a labyrinthine gap between the edge surface and the fan.
  • the edge surface in longitudinal section has a radially extending with respect to the central axis step or lip, which forms a sealing surface for a radially outer region of the fan wheel, characterized in that the step or lip in two separate, diametrically opposed Circumferential portions is offset in the axial direction compared to the other peripheral portions in order to increase the space for receiving the fan wheel in this area.
  • a further advantageous embodiment of the invention provides that the axial offset of the step or lip in the separate peripheral sections in the circumferential direction in steps or continuously variable and each assumes a maximum in the middle of the separate peripheral sections.
  • This design allows a gradual transition in the deviation from the cylindrically symmetrical design of the edge of the opening of the two separate, radially enlarged peripheral portions from the rest of the cylinder-symmetrically shaped without radial expansion peripheral portions of the edge of the opening.
  • the amplitude of the pitching motion steadily decreases in the circumferential direction with the distance from these points.
  • the invention can also advantageously be formed in that the edge surface is formed concavely curved viewed in longitudinal section at least in the two separate, diametrically opposed peripheral portions.
  • the circumferential sections of the edge surface which are concave in longitudinal section form part of a spherical surface which has its center of the ball, in particular within the through-opening, on its central axis.
  • the ball center may also be spaced on the central axis of the opening.
  • the invention also relates to a fan device with a built-in this fan which the corresponding Conditions fulfilled
  • the invention also relates to a vehicle with a fan device according to the invention with a about a central axis in a through opening rotatably driven fan wheel, wherein the installation position of the fan device in the vehicle is such that the central axis is aligned substantially in the straight ahead direction of the vehicle, wherein the through-opening is radially widened in a peripheral section arranged in its uppermost region and in a second, in its lowermost region, in comparison to the cylindrically symmetrical shape in the remaining peripheral sections.
  • the Fig. 1 schematically shows a part of a so-called radiator box 1 with a peripheral frame 2, in which a fan frame 3 is inserted.
  • the fan frame 3 may be formed, for example, as a plate having a substantially circular opening 4 for receiving a fan wheel 5.
  • a cooler upstream or downstream be in the Fig. 1 only schematically shown as a dashed box 6.
  • heat exchange means may be provided, such as a capacitor network.
  • the fan 5 has a hub 7 which is connected to a shaft, not shown, which is connected to an electric motor and driven by this.
  • the electric motor and the shaft and thus also the fan 5 are fixed within the radiator box 1, for example, by webs which are firmly connected to the frame 2. Thus, the fan 5 is held so that it can rotate in the through hole 4.
  • the fan 5 has a plurality, in the example shown, nine conveyor blades 8, 9, 5 in the course of the rotation of the fan wheel to promote air in the axial direction with respect to the central axis 10 of the opening 4.
  • the central axis 10 also represents the axis of rotation of the fan wheel and the central axis of the shaft, not shown.
  • the individual conveying blades 8, 9 are fixedly connected to each other by a revolving fan ring 11. Between the Lüfterradring 11 and the edge of the opening 4 a substantially axially extending gap 10 is provided, which ensures that the fan or the fan ring 11 does not drag on the fan frame 3 and that on the other hand, the space between the fan 5 and the Fan shroud 3 is as small as possible in order to allow good efficiency by efficiently promoting the air flow through the fan 5.
  • the Fig. 2 shows in three-dimensional view a fan device within a further frame 3 ', where there is a motor 12 is shown in the form of an electric motor, which is secured by webs 13, 14 on the edge surface 15 of the fan frame 3'. Connected to the electric motor 12 is a shaft 16, which is fixed in the hub of a fan wheel 5 'and drives it.
  • conveying blades 8 ', 9' are provided, which are not connected to each other at its outer periphery by a Lüfterradring 11.
  • the axial gap between the fan wheel 5 'and the edge surface 15 of the opening in the fan casing 3' is determined there by the contour of the conveying blades that is traversed during the rotation / swept over and the shape of the opening or the edge surface 15.
  • the Fig. 3 schematically shows a front view of a fan 5 "with a Lüfterradring 11 ', which is in an opening 4" rotatably mounted about the central axis 10'.
  • the opening 4 " is formed within a fan cowl indicated by hatching.
  • the opening 4 is not formed perfectly circular, but that in the separate peripheral portions 17, 18, which are indicated by double arrows between each radially extending dashed lines, the radius r of the opening or the edge surface of the opening 4" is increased compared to the other peripheral portions.
  • This measure takes into account the fact that when tilting the fan wheel 5 "or the entire fan device about the axis 19 or an axis parallel to this a pitch movement of the fan wheel 5" from the drawing plane out or into the plane of the drawing around the axis 20 lying in the plane of the drawing takes place.
  • Fig. 4 is a longitudinal section of the fan device of the Fig. 3 shown along the axis 20. It is on both sides of the fan 5 "between the Lüfterradring 11 'and the edge 15' of the opening 4" a relatively narrow axial gap recognizable. It is now assumed that the fan device with fast rotating fan 5 "to one in the Fig. 4 perpendicular to the plane of the drawing axis 21 is pivoted, as indicated by the double arrow 22. It then results from the gyroscopic moments in the rotating fan 5 "a pitch movement perpendicular to the plane of the pivoting movement, as in the Fig. 5 making a cut along the axis 19 in Fig.
  • FIG. 6 schematically shows the mounting position of a fan device in a motor vehicle 26. It is merely the fan 5 is particularly designated as well as the direction of travel of the motor vehicle by the arrow 27 and the direction of the wind through the arrow 28. By the pivot double arrow 29, the direction of the pitch movement of the fan 5 is indicated when cornering of the motor vehicle.
  • the separate circumferential sections 17, 18, in which the opening is widened radially and the axial gap is enlarged each occupy at least ten degrees, in particular at least twenty degrees, more advantageously in particular at least thirty degrees of the total circumference of the Lüfterradrings or the edge of the opening , It is also advantageous if the separate peripheral portions 17, 18 occupy together not more than 180 degrees of the total circumference.
  • both separate peripheral sections are approximately the same size, they should advantageously differ in terms of the amount occupied by not more than 50%.
  • the radius differences between the edge surfaces of the opening in the separate peripheral sections and in the remaining peripheral sections should advantageously be less than 5%, more advantageously less than 3%.
  • FIG. 7 is the front view of an embodiment of the invention shown in which the radial extension of the opening 4 '"in the separate peripheral portions of the front side is not readily apparent.
  • the Fig. 8 shows a section of the arrangement Fig., 7 There, it can be seen that the gap between the edge surface 15 "and the fan ring 11 'extends in a labyrinth-like manner partly in the axial, partly in the radial direction, which is achieved by a stop-like shoulder 30 in the profile of the fan frame 3".
  • the shoulder 30 projects radially inwards and forms a surface 31 against which the fan ring 11 abuts contactlessly in the axial direction 10 perpendicular to the pivot plane.
  • Fig. 9 is a longitudinal section of the arrangement Fig. 7 is shown along the axis 19 and there is shown that in the region of an upper and lower peripheral portion which in Fig. 7 again indicated by dashed lines, the shoulder 30 is formed thinner in the axial direction 10 than in the remaining peripheral portions of the edge of the opening 4 "', so that in these areas an enlarged axial gap 10 gap between the Lüfterradring 11' and the surface 31st results.
  • Another way of looking at the three-dimensional shape of the stop 30 can be formulated so that in the areas where parts of the shoulder 30 are omitted or removed within the separate peripheral portions, the radius of the peripheral surface 15 "of the opening 4 '" is increased.
  • the radially inwardly projecting step of the edge surface in the air stream may be upstream or downstream of the fan, that is, the air flow can in the 8 and 9 optionally from left to right, but also from right to left.
  • Fig. 10 represents the section in the region of the peripheral portions, which are substantially cylindrically symmetric, so not radially expanded, while the Fig. 11 a longitudinal section in a plane, in which the two separate, diametrically opposite peripheral portions are located, in which the passage opening radially expanded and the axial gap between the fan 5 "and the edge 15 '" of the opening is increased.
  • Fig. 10 is a constellation similar to that shown in the Fig. 8 is shown.
  • the design of the edge surface of the opening according to the Fig. 10 thus, in the area of the non-radially widened circumferential sections, it looks similar to the fan device according to FIG Fig. 7 ,
  • peripheral sections which in the Fig. 7 by way of example denoted by 17 ', 18' and in which a radially expanded contour of the edge surface 15 '"of the opening 4'" is present, this is achieved on the one hand, that the shoulder 30 of the fan frame 3 "is reduced in the axial direction of the axis 10 and in that on a part of the edge surface 15 '"in the separate peripheral sections the radius is increased compared to the other peripheral sections.
  • the contour of the edge surface 15 '' is concave, ie rounded, such that a pitching movement of the fan wheel 5 "along the edge surface 15" is made possible.
  • the concave edge surface 15 '" is shaped in this way in that it corresponds to sections of a spherical surface around the ball center 32, wherein the ball center 32 corresponds to the intersection of a central axis 10 with a pitch perpendicular to the plane of the fan 5 ".
  • the pivot plane containing the center axis 10 tends to pivot the fan within the plane of the drawing about the axis perpendicular to the plane of the drawing through the center of the sphere 32.
  • the contiguous contour of the surface of the sphere is shown in phantom and designated 33.
  • the corresponding concave configuration of FIG Edge surface 15 '"allowed thus, the fan ring 11 'in a yaw motion at a constant small distance from the edge surface 15'"of the opening in the fan frame to stay.
  • the size of the axial gap between the fan ring and the edge of the opening thus changes only minimally during a pitching movement. It can thus be chosen in the constellation a total of a small axial gap.
  • edge surface 15 '"in the form of a spherical surface portion may in principle be provided over the entire circumference of the opening.
  • the invention described in its various forms allows the provision of a small axial gap between a fan and the edge of the Opening in a fan frame, without any fear of contact between the fan and the edge of the opening during a pivoting movement of the fan device by yaw / gyroscopic moments.
  • the use of the arrangement according to the FIGS. 10 and 11 is fundamentally conceivable such that the radially inwardly projecting step of the edge surface in the air stream may be upstream or downstream of the fan, that is, the air flow can in the 10 and 11 optionally from left to right, but also from right to left.
  • the Fig. 12 shows in a longitudinal section a cooler 6, which is flown in the direction shown by the arrow 28 by air.
  • the air flow is generated at least partially by a fan wheel 5 '"driven by a motor 12.
  • a baffle plate 34 is arranged behind the fan wheel 5'.
  • the impeller has a fan ring 11 "with an obliquely radially outwardly extending lip 35, which has approximately the shape of a complementary lip 36 of the edge surface 15"".”
  • the lip 36 is axially separated from the fan wheel 5 'in the two separate circumferential sections. " put away.
  • the Fig. 13 shows in a longitudinal section a cooler 6 in front of a fan 5 "".
  • the fan ring 11 "'of the fan 5"" has a lip 37 opposite a step 38 of the peripheral surface 15""'.”
  • the step 38 is axially in the two separate peripheral portions in the direction of the arrow 28 which also indicates the direction of air flow. offset from the lip 37 of the Lüfterradringes 11 '"away.
  • FIGS. 14, 15, 16 and 17 each show in longitudinal section a Lüfterradring 39, 39 ', 39 “, 39'” and an edge surface 40, 40 ', 40 ", 40'” an opening in a fan cowl or socket of a fan.
  • a Lüfterradring 39 is shown with a radially perpendicular to the axial outwardly projecting lip 41, which faces a sealing surface 31 'at a step 45 of the edge surface 40 to form a gap.
  • Level 45 is in the two separate peripheral portions axially offset from the lip 41 in the direction of the arrow 28, which designates the direction of flow, away.
  • the Fig. 15 shows a Lüfterradring 39 'with an obliquely outwardly projecting lip 42, which is opposite to a radially inwardly projecting, in cross-section hook-shaped lip 46 of the edge surface 40' to form a gap.
  • the lip 46 is offset axially in the two separate peripheral portions of the fan ring 39 'opposite to the direction indicated by the arrow 28.
  • the Fig. 16 represents a Lüfterradring 39 "with a radially obliquely outwardly facing lip 43. This is a radially inwardly projecting, in cross-section hook-shaped lip 47 of the edge surface 40" opposite to form a gap.
  • the lip 47 is offset axially in the two separate peripheral portions of the fan ring 39 "against the direction indicated by the arrow 28.
  • the Fig. 17 shows a Lüfterradring 39 "'with a radially obliquely outwardly facing lip 44. This is the lip 48 opposite, which is part of the edge surface 40'" and obliquely facing radially inward.
  • the lip 48 is in the two separate peripheral portions axially offset from the Lüfterradring 39 '"against the arrow 28.
  • the Fig. 18 shows a frontal view of a fan device with a fan shroud 3 "'at the top and bottom two separate, opposing peripheral portions 17" and 18 "are drawn in. At these is a radially inwardly projecting projection of the edge surface in the axial direction of that for the fan space provided offset that there the gap in the axial direction between the projection and the fan at rest is 12.5 mm, while the comparable gap in the offset by 90 ° relative to the peripheral portions 17 ", 18" lying in the horizontal peripheral portions 49th , 50 only 9.5 mm in the axial direction.
  • the peripheral regions 17 “, 49, 18" and 50 lying peripheral regions 51, 52, 53, 54 is a, in particular stepless, transition of the gap provided.
  • Fig. 19 shows a section through a part of an arrangement according to Fig. 18 in the range 17 ", with 10 a center and rotation axis, with 39""a Lüfterradring and with 40"'the corresponding edge surface on the fan frame is called.
  • the gap 57 in the axial direction is in the case of Fig. 18 , ie at the section in the range 17 "of Fig. 18 . 12 . 5 mm and the gap 58 in the case of Fig. 20 , ie in the peripheral regions 49, 50, where the in FIG. 20 shown section is located, 9.5 mm.
  • the fan ring 39 “" has at its edge surface 40 “" facing circumferential edge 55 on a slope or a conically widening area, while the edge of the frame opening has a cone 56 which radially within the Lüfterradringes 39 “” in the axial direction on the Lüfterradring runs.
  • the cone-shaped edge 55 of the fan ring 39 “” and the cone 56 of the edge of the frame opening may have substantially the same cone angle and together form parts of a labyrinth seal.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Air-Conditioning For Vehicles (AREA)

Claims (7)

  1. Dispositif de ventilation comportant un cadre, en particulier un cadre de ventilation (3, 3"), qui présente une ouverture traversante (4, 4', 4"') sensiblement circulaire pour recevoir une roue de ventilation (5, 5', 5"', 5"") tournant autour de l'axe central (10) de l'ouverture, ladite ouverture (4, 4', 4"') étant délimitée par une surface périphérique (15, 15", 15"', 15"", 15""', 40, 40', 40", 40"', 40"") qui s'étend sensiblement avec une symétrie cylindrique autour de l'axe central (10),
    caractérisée en ce qu'
    au niveau de la surface périphérique (15, 15", 15'", 15"", 15""', 40, 40', 40", 40'", 40""), dans deux sections circonférentielles (17', 17", 18', 18") distinctes, diamétralement opposées l'une à l'autre, et contrairement à la forme de symétrie cylindrique dans les sections circonférentielles restantes, une saillie circonférentielle (30, 36, 38) de la surface périphérique (15, 15", 15'", 15"", 15""', 40, 40', 40", 40"') qui fait saillie radialement vers l'intérieur est écartée axialement par rapport à l'espace prévu pour la roue de ventilation (5, 5', 5'", 5"").
  2. Dispositif de ventilation selon la revendication 1, dans lequel la surface périphérique (15, 15", 15'") s'étend au moins dans la direction circonférentielle et dans la direction axiale (10) de l'axe central de l'ouverture (4, 4', 4"'),
    caractérisé en ce que
    le rayon de la surface périphérique (15, 15", 15'", 15"", 15""', 40, 40', 40", 40'", 40"") dans les deux sections circonférentielles distinctes (17', 17", 18', 18"), sur une surface partielle de la partie de la surface périphérique (15, 15", 15'", 15"", 15""', 40, 40', 40", 40'", 40"") qui s'étend en direction axiale (10), est augmenté par rapport à la forme de symétrie cylindrique dans les sections circonférentielles restantes.
  3. Dispositif de ventilation selon l'une des revendications 1 ou 2,
    caractérisé
    - en ce que la surface périphérique (15, 15", 15'", 15"", 15""', 40, 40', 40", 40'", 40"") présente, en coupe longitudinale, une marche (30, 38, 45) ou une lèvre (36, 46, 47, 48) qui s'étend radialement par rapport à l'axe central (10) et qui forme une surface d'étanchéité (31, 31') pour une partie radialement extérieure de la roue de ventilation (5, 5', 5'", 5""), et
    - en ce que, pour augmenter l'espace destiné à recevoir la roue de ventilation (5, 5', 5"', 5""), la marche (30, 38) ou la lèvre (36, 46, 47, 48), dans deux sections circonférentielles (17', 17", 18', 18") distinctes diamétralement opposées l'une à l'autre, est décalée dans la direction axiale (10) par rapport aux autres sections circonférentielles.
  4. Dispositif de ventilation selon la revendication 3,
    caractérisé en ce que
    le décalage axial de la marche (30, 38) ou de la lèvre (36, 46, 47, 48) en direction circonférentielle dans les sections circonférentielles distinctes (17', 17", 18', 18") est en gradin ou se modifie de façon continue et atteint un maximum au centre des sections circonférentielles distinctes (17', 17", 18', 18").
  5. Dispositif de ventilation selon l'une des revendications 1 à 4,
    caractérisé en ce que
    la surface périphérique (15, 15", 15'", 15"", 15""', 40, 40', 40", 40"', 40""), en coupe longitudinale, est conçue courbée de façon concave au moins dans les deux sections circonférentielles (17', 17", 18', 18") distinctes et diamétralement opposées l'une à l'autre.
  6. Dispositif de ventilation selon la revendication 5,
    caractérisé en ce que
    les sections circonférentielles (17', 17", 18', 18") de la surface périphérique (15, 15", 15'", 15"", 15'"", 40, 40', 40", 40'", 40"") qui, en coupe transversale, sont de forme concave, forment une partie d'une surface sphérique qui a son centre (32) sur l'axe central (10) de l'ouverture traversante (4, 4', 4"'), notamment dans ladite ouverture traversante.
  7. Véhicule (26) avec un dispositif de ventilation selon l'une des revendications 1 à 6, avec une roue de ventilation (5, 5', 5"', 5"") qui peut être entraînée en rotation autour d'un axe central (10) dans une ouverture traversante (4, 4', 4"'), la position de montage du dispositif de ventilation dans le véhicule (26) étant telle que l'axe central (10) est orienté sensiblement dans la direction du déplacement rectiligne (27) du véhicule (26),
    caractérisé en ce que
    l'ouverture traversante (4, 4', 4'") dans une section circonférentielle (17', 17", 18', 18") disposée dans sa partie supérieure et dans une deuxième section circonférentielle (17', 17", 18', 18") disposée dans sa partie inférieure est élargie notamment radialement par rapport à la forme de symétrie cylindrique dans les sections circonférentielles restantes.
EP13802533.3A 2012-11-30 2013-11-15 Dispositif de ventilation et véhicule pourvu d'un dispositif de ventilation Active EP2926013B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012023454.6A DE102012023454A1 (de) 2012-11-30 2012-11-30 Lüftereinrichtung und Fahrzeug mit einer Lüftereinrichtung
PCT/EP2013/003443 WO2014082711A2 (fr) 2012-11-30 2013-11-15 Dispositif de ventilation et véhicule pourvu d'un dispositif de ventilation

Publications (2)

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EP2926013A2 EP2926013A2 (fr) 2015-10-07
EP2926013B1 true EP2926013B1 (fr) 2019-01-09

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ID=49753116

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EP13802533.3A Active EP2926013B1 (fr) 2012-11-30 2013-11-15 Dispositif de ventilation et véhicule pourvu d'un dispositif de ventilation

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US (1) US9850914B2 (fr)
EP (1) EP2926013B1 (fr)
KR (1) KR101858084B1 (fr)
CN (1) CN104822947B (fr)
BR (1) BR112015012367A2 (fr)
DE (1) DE102012023454A1 (fr)
ES (1) ES2716821T3 (fr)
WO (1) WO2014082711A2 (fr)

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Also Published As

Publication number Publication date
CN104822947A (zh) 2015-08-05
US20150260200A1 (en) 2015-09-17
WO2014082711A2 (fr) 2014-06-05
BR112015012367A2 (pt) 2017-07-11
CN104822947B (zh) 2018-06-29
KR20150091143A (ko) 2015-08-07
WO2014082711A3 (fr) 2014-08-07
US9850914B2 (en) 2017-12-26
ES2716821T3 (es) 2019-06-17
DE102012023454A1 (de) 2014-06-05
EP2926013A2 (fr) 2015-10-07
KR101858084B1 (ko) 2018-05-15

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