EP3589844A1 - Carter de ventilateur axial configuré pour rediriger le flux d'air de fuite recirculant dans le sens de l'écoulement principal - Google Patents
Carter de ventilateur axial configuré pour rediriger le flux d'air de fuite recirculant dans le sens de l'écoulement principalInfo
- Publication number
- EP3589844A1 EP3589844A1 EP18722666.7A EP18722666A EP3589844A1 EP 3589844 A1 EP3589844 A1 EP 3589844A1 EP 18722666 A EP18722666 A EP 18722666A EP 3589844 A1 EP3589844 A1 EP 3589844A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- propeller
- nozzle
- air
- flow
- support
- 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.)
- Withdrawn
Links
- 230000003134 recirculating effect Effects 0.000 title claims abstract description 25
- 230000002093 peripheral effect Effects 0.000 claims abstract description 70
- 238000009423 ventilation Methods 0.000 claims abstract description 33
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 238000011144 upstream manufacturing Methods 0.000 description 29
- 208000035209 Ring chromosome 17 syndrome Diseases 0.000 description 20
- 239000000243 solution Substances 0.000 description 2
- 241001272720 Medialuna californiensis Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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
- F04D29/08—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
- 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
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
- F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
- F04D29/685—Inducing localised fluid recirculation in the stator-rotor interface
Definitions
- the field of the present invention is that of the automobile, and more particularly that of the circulation of air for the cooling of equipment of the vehicle, in particular of its engine.
- the invention particularly relates to a support for ventilation device, a ventilation device and a corresponding cooling module.
- Thermal motor vehicles need to evacuate the calories that generate their operation and are therefore equipped with heat exchangers, including cooling radiators, which are placed at the front of the vehicle and through which outside air passes. .
- a ventilation device is placed upstream or downstream thereof, upstream or downstream appreciating in this document with reference to the direction of suction air through the ventilation device.
- the assembly formed by the heat exchanger (s) (s) and the ventilation device is called cooling module.
- the ventilation device comprises at least one propeller which serves to force the circulation of air.
- the propeller is arranged between the exchanger
- the propeller is characterized by the flow of the air flow that it produces, which is used to force the heat exchange between the heat exchanger and the surrounding air.
- the helix has an axially oriented flow. It includes blades connected by their feet to a central hub, and generally
- the ventilation device therefore creates an air flow that sucks upstream through the exchangers, and which forces the flow of air towards the downstream in the engine compartment, according to an axial flow.
- the ventilation device also referred to as a motor vehicle
- fan or GMV generally comprises a nozzle or base, for example of parallelepiped shape, having at least one orifice or a cylindrical cut receiving the helix.
- This nozzle ensures the attachment of the ventilation device, in particular on the cooling radiator or the vehicle chassis, and also forms a propeller electric motor support propeller. It maintains the axis of rotation around which the propeller rotates.
- the nozzle has at the periphery of the orifice to receive the helix, a bent portion covering the upstream end of the peripheral shell so as to guide the flow of recirculating air from downstream.
- the flow of air recirculating from the downstream and rising circulating outside the peripheral shell always has a tangential component that disrupts the main air flow.
- the present invention proposes to remedy at least partially the aforementioned drawbacks by providing support for an improved ventilation device, to prevent the performance losses of the ventilation device.
- the subject of the invention is a support for a ventilation device of a motor vehicle comprising a helix configured to be rotated about an axis of rotation so as to generate a flow of air, the support comprising a nozzle:
- the nozzle further comprises on its inner wall, an air guide, shaped so as to direct a flow of air flowing between the peripheral ring and the inner wall, said recirculating air flow, in the direction of flow of the air flow generated by the propeller.
- the air guide reduces the tangential speed of the recirculating air flow so as not to disturb the flow of the main air flow.
- Said support may further comprise one or more of the following characteristics, taken separately or in combination:
- the inner wall of the nozzle has an axial portion configured to extend around the peripheral shell and a curved section extending inwardly of the orifice so as to radially cover the end of said ferrule assembly the propeller in the nozzle;
- the curved section is configured to radially cover the upstream end of said shell in the direction of flow of the air flow generated by the propeller;
- the air guide is formed on the axial section
- the air guide is formed on the curved section
- the air guide is formed by at least one rib
- the air guide is formed by at least one protuberance
- the air guide is made by at least one pin
- the air guide is produced by at least one stud
- the air guide is formed by at least one hollow
- the air guide is formed by a plurality of ribs extending on the inner wall of the nozzle;
- the air guide is formed by a peripheral rib extending on the inner wall of the nozzle and having a substantially crenellated shape.
- the invention also relates to a ventilation device comprising a helix configured to be rotated about an axis of rotation so as to generate an air flow, the propeller comprising a plurality of blades and a peripheral ring connecting the heads. blades.
- said device further comprises a support as defined above, comprising a nozzle having an orifice in which the helix is positioned, and having at the periphery of the orifice, an inner wall covering at least partially one end of the peripheral ferrule.
- the nozzle further comprises on its inner wall an air guide shaped so as to guide a flow of air flowing between the peripheral ring and the inner wall, in the direction of flow of the air flow generated by the propeller .
- Said device may further comprise one or more of the following features, taken separately or in combination:
- the peripheral ring has a substantially cylindrical shape
- the nozzle comprises a curved section substantially of "U" shape
- the curved section defines a groove inside which the peripheral shell of the propeller extends
- the curved section defines a groove and the peripheral shell of the propeller is arranged axially recessed relative to the groove.
- the invention also relates to a cooling module for a motor vehicle equipped with a ventilation device as described above.
- said module comprises a heat exchanger located on the path of at least a portion of the air flow generated by the propeller.
- FIG. 1 is a simplified and schematic view of a cooling module of an engine block of a motor vehicle
- FIG. 2 is a perspective view showing a ventilation device of the cooling module of FIG. 1;
- FIG. 3 is a front view partially showing the ventilation device of FIG. 2,
- FIG. 4 is a sectional view partially showing a nozzle receiving a helix of the ventilation device of FIG. 3;
- FIG. 5 is a first partial perspective view showing an exemplary embodiment of a peripheral shell of the helix, the nozzle and an air guide formed on an inner wall of the nozzle comprising a plurality of ribs; in "L",
- FIG. 6 is a second partial perspective view showing the exemplary embodiment of the peripheral shell of the propeller, the nozzle and the air guide of the figure 5,
- FIGS. 7 to 11 are partial perspective views showing various exemplary embodiments of the peripheral shell of the helix, the nozzle and the air guide comprising a plurality of ribs formed on an axial portion of the internal wall of FIG. the nozzle,
- FIG. 12 is a partial perspective view showing an exemplary embodiment of a peripheral shell of the helix, the nozzle and an air guide formed on an inner wall of the nozzle comprising a plurality of formed ribs; on a curved section of the inner wall of the nozzle,
- FIG. 13 is a sectional view partially showing a nozzle receiving a helix and having a peripheral rib on its inner wall, and
- FIG. 14 is a sectional view partially showing the nozzle receiving a helix and having a peripheral rib formed on an axial portion and a curved section of the inner wall of the nozzle.
- FIG. 1 shows schematically a cooling module 1 of a motor unit 3 of a motor vehicle.
- the cooling module 1 comprises in particular a ventilation device 5 and at least one heat exchanger 7 such as a cooling radiator 7.
- the ventilation device 5 is placed between the cooling radiator 7 and the engine block 3.
- the ventilation device 5 can be arranged either in front or behind the radiator of cooling 7.
- the invention relates more particularly to the ventilation device 5.
- the ventilation device 5 comprises a propeller 9 and a support 10 comprising a base, or nozzle 11, also called armature, better visible in Figure 2 and partially shown in Figures 3 at 13.
- the propeller 9 is mounted in rotation about an axis of rotation A.
- the terms “axial”, “radial” or “tangential” refer to the axis of rotation A of the propeller 9.
- the engine block 3, the propeller 9 and the cooling radiator 7 are substantially axially aligned.
- the propeller 9 When the propeller 9 is configured to be rotated under the action of an electric motor 12 shown schematically in Figure 2.
- the rotating propeller 9 sets in motion the air flow and drives through the cooling radiator 7.
- the heat exchanger 7 is located on the path of at least a portion of the air flow generated by the helix 9.
- the air flow flows in a direction of suction or flow direction substantially oriented cooling radiator 7 to the engine block 3, as shown schematically by the arrow F in Figure 1.
- the term “upstream” and “downstream” the directions associated with the flow direction F of the air flow generated by the helix 9.
- the propeller 9 is for example made by plastic injection.
- this propeller 9 comprises: a central hub 13, also called a "bowl”,
- blade roots a plurality of blades 15 with first ends 15a around the central hub 13, called blade roots, and extending radially from the central hub 13, and
- a peripheral ring 17 to which are connected second ends 15b of the blades 15, called blade heads 15b.
- the blades 15 of the propeller 9 are thus attached to each other by their heads 15b, to the peripheral shell 17. This reduces the risk of floating blades 15 in operation of the ventilation device 5.
- the peripheral ring 17 connecting the blades 15 of the helix 9 is also called rotating shell.
- the peripheral ring 17 has a substantially cylindrical shape which extends along the axis of rotation A of the helix 9.
- any other shape may be considered.
- the invention is more particularly aimed at the support 10 for the ventilation device 5 comprising the nozzle 11, shown schematically in FIG. 2.
- the nozzle 11 provides a function of capturing air and guiding the air towards the propeller 9.
- the nozzle 11 also provides a mechanical support function for all the elements of the ventilation device 5.
- the nozzle 11 may have a substantially parallelepipedal shape extending substantially parallel to the cooling radiator 7 shown schematically in Figure 1.
- the nozzle 11 may include the electric motor 12 (Figure 2) for driving the propeller 9.
- the nozzle 11 may comprise for this purpose a central cover 18 in which the electric motor 12 is intended to be positioned.
- the central hood 18 is fixed.
- the nozzle 11 has an orifice 19 or axial cylindrical cutout, allowing to pass the ventilation air.
- the orifice 19 is formed around the central hood 18.
- the propeller 9 is intended to be disposed inside the orifice 19 of the nozzle 11. The propeller 9 is thus able to move in rotation within the orifice 19 made in the nozzle 11.
- the nozzle 11 further comprises holding arms 20. These arms extending radially through the orifice 19, and which are attached to the periphery of the orifice 19 of the nozzle 11.
- the arms 20 hold the center hood on the central cover 18.
- the holding arms 20 carry, through the central cover 18, the electric motor 12 adapted to drive the central hub 13 of the propeller 9.
- the nozzle 11 has an internal wall
- a recess 23 forming a housing for the peripheral shell 17.
- the recess 23 is formed on the inner wall 21 at the periphery of 1 Hole 19.
- the recess 23 is shaped so that the inner wall 21 of the nozzle 11 covers the upstream end of the peripheral shell 17.
- the recess 23 formed in the inner wall 21 is such that the inner wall 21 comprises an axial section 25, here of substantially cylindrical shape along the axis of rotation A of the helix 9, this axial section 25 is configured to extend around the peripheral shell 17. It is in particular a downstream section 25 with reference to the direction of suction or flow direction F of the air flow.
- the axial section 25 is extended upstream by a curved section 27.
- the curved section 27 thus forms an upstream section 27 with reference to the suction direction or flow direction F of the air flow.
- the curved section 27 is intended to cover, more precisely cover radially, the upstream end of the peripheral ring 17 to the assembly of the propeller 9 in the nozzle 11.
- the curved section 27 thus extends inwards from the orifice 19.
- the inner wall 21 thus has a substantially hook-shaped cross-section in cross-section, with the curved section 27 having in cross section a substantially "U" shape, having two branches extending substantially axially and a base connecting the two branches and forming the covering the peripheral ring 17.
- the end of the curved section 27 extends the base or portion which covers the peripheral ring 17 while extending axially, towards the downstream of the inside of the peripheral shell 17.
- the invention is not limited to the rounded shape of the curved section 27 illustrated and any other form may be considered.
- the recess 23 is formed by a first portion 23a of substantially cylindrical shape along the axis of rotation A of the helix 9 and a second portion 23b of substantially toroidal shape, which extends the cylindrical portion 23a upstream so as to form a groove or groove 23b.
- the two parts 23a and 23b of the recess 23 are delimited schematically by a dashed axis B in FIG. 4.
- the curved section 27 delimits the groove 23b.
- the axial section 25 of the inner wall 21 of the nozzle 11 may extend axially over a height h 2 s substantially similar to the height h 7 of the peripheral shell 17, as illustrated in the examples of FIGS. 4 to 8 and 12, 13. On the contrary, it is possible to provide a difference in height between the axial section 25 and the peripheral ring 17. According to the examples illustrated in FIGS. 9 to 11, the peripheral ring 17 extends over a height h 1 which is smaller than the height h 2 s of the axial portion 25 of the inner wall 21 of the nozzle 11. The difference in height is left to the appreciation of the skilled person according to the applications.
- the inside diameter of the cylindrical axial portion 25 of the inner wall 21 of the nozzle 11, that is to say at the first portion 23a of the recess 23 (see FIG. 4), is greater to the diameter of the peripheral shell 17.
- the dimensioning of the radial clearance between the cylindrical axial section 25 and the peripheral ring 17 may be adapted as required by those skilled in the art.
- the inside diameter of the inner wall 21 of the nozzle 11 at the bent section 27 is smaller than the diameter of the peripheral shell 17.
- the curved section 27 delimiting the groove 23b may extend radially relative to the peripheral shell 17 over a distance d, which can be adapted (see FIGS. 6 and 7).
- d the radial distance between the peripheral shell 17 and the end of the curved section 27 is relatively small.
- the radial distance between the peripheral ring 17 and the end of the curved section 27 is larger.
- the blades 15 of the propeller 9 extend radially between the central hub 13 and the inner wall 21 of the nozzle 11, the peripheral ring 17 of the helix 9 extends inside the recess 23 of the inner wall 21 of the nozzle 11, and the curved section 27 of the inner wall 21 of the nozzle 11 covers the upstream end of the peripheral ring 17.
- the upstream end of the peripheral ring 17 extends inside the groove 23b.
- the free end of the hook or curved section 27 extends partly inside the peripheral shell 17 of the propeller 9.
- an axial gap (not shown in the figures) can be provided between the upstream end of the peripheral shell 17 and the curved section 27 of the nozzle 11.
- the upstream end of the shell device 17 does not extend inside the groove 23b, but recessed axially relative to the groove 23, that is to say below the groove 23b according to the direction of suction or direction of flow F of the air flow.
- the free end of the hook or curved section 27 does not extend inside the cylinder delimited by the peripheral shell 17 of the propeller 9.
- the nozzle 11 has on its inner surface an air guide 29 for redirecting the flow of recirculating air in the direction of flow of the air flow generated by the propeller 9, that is to say say according to a substantially axial flow downstream of the propeller 9, as shown schematically by the arrow F 'in Figure 4, so as to limit the tangential or radial component of the recirculating air flow, which would disturb the flow of the downstream air flow according to the arrow F.
- the air guide 29 is shaped or configured to limit the tangential velocity of the recirculating air flow.
- the air guide 29 is shaped so as to force the redirection of the recirculating air stream at least in part in the thickness of the boundary layer Q of the peripheral shell 17, at the level of the blade heads 15b.
- the recirculating air flow is mixed at least partly with the boundary layer Q of the peripheral shell 17. This makes it possible to increase the flow speed in the boundary layer Q and to limit its extension.
- the air guide 29 may be formed on the axial section 25 and / or on the curved section 27 of the inner wall 21 of the nozzle 11.
- the nozzle 11 comprises, for this purpose, a predefined number of ribs 31 on the inner wall 21, the rib or ribs 31 forming the air guide 29.
- the number of ribs 31 is adapted as needed.
- the pitch between the ribs 31 can be adapted by those skilled in the art.
- the ribs 31 are arranged to force the clearance flow axially. Indeed, the presence of the ribs 31 in the redirection channel 28 has the effect of limiting or breaking the tangential component of the recirculating air.
- the ribs 31 are advantageously dimensioned so as to limit the recirculating recirculating air at the blade heads 15b.
- the ribs 31 may be arranged on the axial section 25 and extend on the inside of the curved section 27, that is to say on the side intended to be opposite the upstream end of the peripheral ring 17, such that illustrated in Figures 5 and 6.
- the ribs 31 may be arranged only on the axial section 25 as illustrated in FIGS. 7 to 11.
- the ribs 31 may be arranged only on the inside of the curved section 27, or in other words inside the groove formed by the second part 23b of the recess 23, as illustrated in FIGS. Figures 12 and 13.
- the ribs 31 may extend axially and / or radially.
- the ribs 31 are shaped so as to follow the contour of the inner wall 21 of the nozzle 11.
- the shape of the ribs 31 can also be adapted as required.
- FIGS. 4 to 13 are described in greater detail below.
- a plurality of ribs 31 can extend both in the bottom of the groove 23b, that is to say on the inside of the curved section 27 , and on the axial section 25, here of substantially cylindrical shape.
- the ribs 31 have for this purpose a shape substantially in "L".
- the portions of the ribs 31 arranged in the bottom of the groove 23b extend radially and the portions of the ribs 31 arranged on the axial cylindrical section 25 extend axially.
- the portions of the ribs 31 arranged in the bottom of the groove 23b have a contour which follows the curved shape of the upstream section 27, in this example a substantially rounded contour.
- these ribs 31 can be adapted.
- the ribs 31 may extend or not over the entire height 3 ⁇ 4 of the axial section 25 and over the entire width of the curved section 27.
- the width or depth of the ribs 31, that is to say the radial dimension, can also be adapted.
- the thickness of the ribs 31 can also be adapted.
- the ribs 31 can be arranged on the axial section 25.
- the ribs 31 present a shape of blade refined on the downstream side, that is to say say at the beginning of the upturn or curve of the curved section 27.
- these ribs 31 can be adapted.
- the ribs 31 can extend over the entire height h 2 s of the axial section 25 or in a variant not shown on a selected portion of the axial section 25.
- the width or depth of the ribs 31, that is to say the radial dimension, can also be adapted.
- the ribs 31 may have a small width while in the examples of Figures 10 and 11 the ribs 31 are wider.
- the ribs 31 are this time arranged only in the bottom of the groove 23b delimited by the curved section 27 of the nozzle 11.
- the ribs 31 extend radially in the bottom of the groove 23b.
- the ribs 31 have, for example respectively, a substantially half-moon shape along the one hand the contour of the curved section 27 and secondly the contour of the upstream end of the peripheral ring 17. As before, the number, the shape and size of these ribs 31 can be adapted.
- a peripheral rib 31 is arranged in the bottom of the groove 23b and is indented or has a substantially crenellated shape with an alternation of teeth and recesses. As before, the shape and size of this rib 31 can be adapted.
- the radial clearance j r between the peripheral ring 17 and the axial extension of the rib 31 may be of the order of 0.5% to 2% of the diameter of the helix 9, preferably of the order of 1% of the diameter of the helix 9.
- the radial clearance j r may be of the order of 4.4mm.
- the radial depth p r of the rib 31, more precisely of its axial extension, may be of the order of 0.5% to 2% of the diameter of the helix 9, preferably of the order of 1% of the diameter. of the propeller 9.
- the radial depth p r is of the order of 4.4 mm for a helix 9 diameter of about 440 mm.
- the axial clearance j a between the peripheral ring 17 and the radial extension of the rib 31 may be of the order of 0.5% to 4%.
- the axial depth p a of the rib 31, more precisely of its radial extension, can be of the order of 0.5% to 4% of the diameter of the helix 9, preferably of the order of 2% of the diameter. of the propeller 9.
- the axial depth p a is of the order of 8.8 mm for a helix 9 diameter of about 440 mm.
- each rib 31 extends both radially on the inner part of the curved section 27, and axially on the axial section 25, having a substantially "L" shape and being arranged with the axial clearance j a and the radial clearance j r , as defined, with respect to the peripheral shell 17.
- recirculation channel 28 (see FIGS. 4 to 13), that is to say in the bottom of the groove 23b delimited by the curved section 27 of the nozzle 1 1 and / or on the axial section 25, a surface having asperities (not shown in the figures), such as a plurality of recesses, protuberances, studs, or pins, to limit the tangential speed the flow of air flowing outside the peripheral ring 17.
- the inner surface of the nozzle 11 is designed in particular to ensure the aerodynamic guidance of the recirculating air flow coming from the downstream and recirculating through the outside of the peripheral shell 17.
- the flow of air coming from downstream of the propeller 9 upstream, is thus guided by the ribs 31, so that it flows substantially axially, according to the flow direction F of the air flow generated by the propeller 9 at least partly in the thickness of the boundary layer Q of the peripheral shell 17.
- the recirculating air flow is then separated from the main air flow circulating from upstream to downstream. Indeed, this airflow does not disturb the flow of air from upstream to downstream according to the arrow F. This removes the vortices that would be associated with the mixture of ⁇ clearance flow with the upstream flow, which allows to significantly gain in pressure variation and efficiency.
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 |
|---|---|---|---|
| FR1752834A FR3064540B1 (fr) | 2017-04-03 | 2017-04-03 | Support pour dispositif de ventilation, dispositif de ventilation et module de refroidissement correspondants |
| PCT/FR2018/050804 WO2018185411A1 (fr) | 2017-04-03 | 2018-03-30 | Carter de ventilateur axial configuré pour rediriger le flux d'air de fuite recirculant dans le sens de l'écoulement principal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3589844A1 true EP3589844A1 (fr) | 2020-01-08 |
Family
ID=61750187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18722666.7A Withdrawn EP3589844A1 (fr) | 2017-04-03 | 2018-03-30 | Carter de ventilateur axial configuré pour rediriger le flux d'air de fuite recirculant dans le sens de l'écoulement principal |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20210108649A1 (fr) |
| EP (1) | EP3589844A1 (fr) |
| CN (1) | CN110998101A (fr) |
| FR (1) | FR3064540B1 (fr) |
| WO (1) | WO2018185411A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2606558B (en) | 2021-05-13 | 2024-02-28 | Dyson Technology Ltd | A compressor |
| GB2606557B (en) | 2021-05-13 | 2024-07-24 | Dyson Technology Ltd | A compressor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5489186A (en) * | 1991-08-30 | 1996-02-06 | Airflow Research And Manufacturing Corp. | Housing with recirculation control for use with banded axial-flow fans |
| KR100824660B1 (ko) * | 2004-04-05 | 2008-04-24 | 가부시키가이샤 고마쓰 세이사쿠쇼 | 냉각장치 |
| US7789622B2 (en) * | 2006-09-26 | 2010-09-07 | Delphi Technologies, Inc. | Engine cooling fan assembly |
| KR20090127353A (ko) * | 2007-04-05 | 2009-12-10 | 보르그워너 인코퍼레이티드 | 링 팬 및 쉬라우드 에어 가이드 시스템 |
| DE102009012025A1 (de) * | 2009-03-10 | 2010-09-16 | Behr Gmbh & Co. Kg | Kühlvorrichtung für ein Kraftfahrzeug |
| FR2989730B1 (fr) * | 2012-04-19 | 2015-03-06 | Valeo Systemes Thermiques | Ventilateur pour automobile comportant un stator en amont de l'helice |
| ITTO20130806A1 (it) * | 2013-10-04 | 2015-04-05 | Johnson Electric Asti S R L | Gruppo di ventilazione, particolarmente per uno scambiatore di calore di un autoveicolo |
| CN105626224B (zh) * | 2014-11-05 | 2018-10-09 | 陕西重型汽车有限公司 | 车用风扇护风装置及该重型汽车 |
-
2017
- 2017-04-03 FR FR1752834A patent/FR3064540B1/fr active Active
-
2018
- 2018-03-30 EP EP18722666.7A patent/EP3589844A1/fr not_active Withdrawn
- 2018-03-30 WO PCT/FR2018/050804 patent/WO2018185411A1/fr not_active Ceased
- 2018-03-30 US US16/500,233 patent/US20210108649A1/en not_active Abandoned
- 2018-03-30 CN CN201880036484.1A patent/CN110998101A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018185411A1 (fr) | 2018-10-11 |
| CN110998101A (zh) | 2020-04-10 |
| FR3064540B1 (fr) | 2019-08-02 |
| FR3064540A1 (fr) | 2018-10-05 |
| US20210108649A1 (en) | 2021-04-15 |
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