EP3794224A1 - Dispositif de ventilation pour vehicule automobile - Google Patents
Dispositif de ventilation pour vehicule automobileInfo
- Publication number
- EP3794224A1 EP3794224A1 EP19745707.0A EP19745707A EP3794224A1 EP 3794224 A1 EP3794224 A1 EP 3794224A1 EP 19745707 A EP19745707 A EP 19745707A EP 3794224 A1 EP3794224 A1 EP 3794224A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- housing
- heat exchanger
- air guide
- upstream
- 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.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 25
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 43
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 239000003570 air Substances 0.000 description 91
- 239000012080 ambient air Substances 0.000 description 4
- 239000013529 heat transfer fluid Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/08—Air inlets for cooling; Shutters or blinds therefor
-
- 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
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/10—Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
-
- 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
- F01P3/00—Liquid cooling
- F01P3/18—Arrangements or mounting of liquid-to-air heat-exchangers
-
- 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
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
- F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
-
- 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
- F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
- F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
Definitions
- the invention relates to a ventilation device for a motor vehicle.
- the invention relates to the automotive field, and more particularly to the field of air circulation for cooling the engine and its equipment.
- a motor vehicle heat exchanger generally comprises tubes, in which a heat transfer fluid is intended to circulate, in particular a liquid such as water, and heat exchange elements connected to these tubes, often designated by the term “ fins "or” dividers ".
- the fins increase the exchange surface between the tubes and the ambient air.
- a ventilation device is used in addition, to generate or increase a flow of air directed towards the tubes and the fins.
- a ventilation device comprises a propeller fan.
- the air flow generated by the blades of such a fan is turbulent, in particular due to the circular geometry of the propeller, and generally only reaches part of the surface of the heat exchanger ( circular area of the exchanger facing the fan propeller).
- the heat exchange is therefore not homogeneous over the entire surface of the tubes and fins.
- the blades when switching on the fan is not necessary (typically when exchanging heat with ambient air not accelerated is sufficient to cool the heat transfer fluid circulating in the exchanger), the blades partially obstruct the flow of ambient air towards the tubes and the fins, which hinders the circulation of air towards the exchanger and thus limits heat exchange with the heat transfer fluid.
- This integration is all the more complicated in an electric vehicle, the front face of which leaves little room for housing the cooling elements of the vehicle.
- Patent EP233174 describes a tangential fan, or also called “transverse flow”, which is equipped with a drum-shaped rotor, which comprises, at the circumference of the curved blades.
- This tangential fan is associated with a horizontally positioned radiator and the ventilator blows the air in front of the vehicle towards the radiator.
- the invention aims to improve this type of ventilation with a tangential fan.
- the subject of the invention is therefore a ventilation device intended to generate an air flow passing through a heat exchanger of a motor vehicle, comprising:
- a housing arranged to receive one or more heat exchangers, the housing being placed upstream of the tangential fan so that, in operation of the fan, evening air sucked in by the fan and this sucked air first passes through the housing for heat exchanger before passing into the tangential fan,
- an upstream distributor of the aspirated air upstream distributor arranged to distribute the aspirated air before this air passes through the housing for heat exchanger.
- the air flow which passes through the heat exchanger (s) is relatively homogeneous, which is particularly advantageous in terms of performance.
- This distributor thus makes it possible to straighten the air flow entering the exchanger (s) and to distribute the air flow uniformly through the exchanger (s).
- the current trend is to reduce the air intake on the front of the vehicle, which makes it more difficult to ensure uniform air distribution on the exchanger (s).
- the invention makes it possible, thanks to the distributor, to ensure this homogeneous flow through the exchanger or exchangers even if the air inlet is of reduced dimensions.
- the upstream distributor includes an upstream air guide having a convergent shape, namely the cross section of this air guide decreases as one goes away from the entry of this guide.
- this upstream air guide has a curved shape, in particular not straight over its entire length.
- this form of the convergent can be substantially, at least over a portion of its length, parabolic or hyperbolic.
- this upstream air guide has an air inlet and is arranged so that its end opposite the air inlet is arranged so as to be substantially adjacent to the heat exchanger which is intended to be placed in the housing.
- the air guide is arranged facing at least a major part of the exchanger, in particular of substantially the entire surface of the heat exchanger placed in the housing.
- the distributor comprises, in addition to the air guide, at least one deflector arranged in the upstream air guide and arranged to direct the air flow towards the housing for heat exchanger .
- the distributor comprises a plurality of upstream deflectors arranged in a row, this row being notably substantially parallel to a surface of the heat exchanger placed in the housing.
- the deflectors in the row are all identical. According to one aspect of the invention, certain upstream deflectors in the row are different from each other.
- the upstream deflectors are arranged less than 5 cm, in particular less than 2 cm or less than 1 cm from the heat exchanger.
- each deflector has a fin, in particular having a curve shape.
- each fin has a curved edge in the direction of the housing for heat exchanger.
- the upstream air guide has a common wall with the housing for heat exchanger, this common wall being in particular an end wall of the housing for heat exchanger.
- the ventilation device comprises a downstream air guide arranged downstream of the heat exchanger or heat exchangers arranged in the housing.
- this air guide has a divergent shape, namely the cross section of this air guide increases as we approach the outlet of this downstream guide.
- this downstream air guide has a curved shape, in particular not straight over its entire length.
- this form of the divergent can be substantially, at least over a portion of its length, parabolic or hyperbolic.
- this downstream air guide has an air outlet and is arranged so that its end opposite the air outlet is arranged so as to be substantially adjacent to the heat exchanger which is intended to be placed in the housing.
- the downstream air guide is arranged opposite substantially the entire surface of the heat exchanger placed in the housing.
- the device comprises one or more downstream deflectors arranged to direct the air flow leaving the housing for one or more heat exchangers, towards the outlet of the downstream air guide.
- the downstream deflectors in the row are all identical.
- certain downstream deflectors in the row are different from each other.
- downstream deflectors are arranged within 5 cm, in particular less than 2 cm or less than 1 cm from the heat exchanger.
- each downstream deflector comprises a fin, in particular having a curve shape.
- each downstream fin has a curved edge in the direction of the housing for heat exchanger.
- the upstream and / or downstream fins are present over substantially the entire extent of the heat exchanger (s), or over a major part of this extent.
- the heat exchangers are arranged one behind the other in the direction of circulation of the air flow.
- the upstream air guide and / or the downstream air guide are formed on two different parts, in particular assembled together, for example with screws, these parts being produced in particular plastic material.
- the part on which the downstream guide is formed is arranged to define at least one outlet channel in which the air flow circulating in the downstream air guide comes discard.
- the outlet channel has a Y shape so as to have two air outlet openings.
- the downstream air guide has a common partition with the outlet channel.
- the downstream air guide communicates with the outlet channel by an elbow so that the air flow which passes through this elbow can make an angle greater than 90 °, in particular greater than 120 °.
- the tangential fan is arranged at the outlet of the downstream air guide.
- the tangential fan is arranged in the elbow which connects the downstream air guide to the outlet channel.
- the tangential fan is arranged at an outlet opening of the outlet channel which has in particular a Y shape.
- two tangential fans are arranged in the outlet channel, each fan being at an opening of the outlet channel which has a Y shape.
- the outlet openings of the Y give at the bottom of the vehicle.
- the ventilation device comprises, in addition to the tangential fan or fans arranged downstream of the heat exchanger (s), a tangential fan arranged upstream of this or these heat exchangers.
- this upstream fan is arranged at the inlet of the upstream air guide.
- the housing for heat exchanger is arranged so that when the ventilation device is mounted on the vehicle, the housing is inclined so that the heat exchanger (s) received in this housing either or are inclined, this inclination being in particular between 0 and 90 ° relative to the horizontal, the angles of 0 ° and 90 ° being excluded. This inclination is in particular between 10 ° and 80 °, for example between 40 ° and 50 °.
- the ventilation device comprises
- the invention when at least two tangential fans are provided, these fans can be identical or different, in particular different diameters.
- the invention also relates to a heat exchange module, comprising a ventilation device as described above, and at least one first heat exchanger placed in the housing of the ventilation device.
- FIG. 1 to 3 illustrate, in section, a heat exchange module equipped with a ventilation device according to different embodiments of the invention.
- the invention relates to a ventilation device 1 for a motor vehicle.
- the invention also relates to a heat exchange module 100, comprising the ventilation device 1 and two heat exchangers 101 and 102 placed one behind the other, as illustrated in FIG. 1.
- the exchangers 101 and 102 are for example a low temperature radiator and an air conditioning loop condenser.
- the ventilation device 1 comprises:
- a tangential fan 2 for setting in motion an air flow F passing through the heat exchangers 101 and 102
- a housing 5 arranged to receive the heat exchangers 101 and 102, the housing 5 being placed upstream of the tangential fan 2 so that, in operation of the fan 2, evening air sucked in by the fan 2 and this air sucked in first crosses the housing 5 for heat exchanger before passing into the tangential fan 2,
- upstream distributor 10 of the sucked air upstream distributor arranged to distribute the sucked air before this air passes through the housing 5 for heat exchangers.
- the fan 2 is equipped with a drum-shaped rotor 8, which comprises, at the circumference of the curved blades 9.
- the upstream distributor 10 comprises an upstream air guide 1 1 having a convergent shape, namely the cross section of this air guide decreases as one moves away from the inlet 12 of this guide.
- This upstream air guide 1 1 has a curved shape, in particular not straight over its entire length.
- this form of the convergent can be substantially, at least over a portion of its length, parabolic or hyperbolic.
- This upstream air guide 1 1 has an air inlet 12 and is arranged so that its opposite end 13 to the air inlet 12 is arranged so as to be substantially adjacent to the heat exchanger 101 which placed in the housing 5.
- the air guide 1 1 is arranged facing substantially the entire surface of the heat exchanger 101 placed in the housing.
- the distributor 10 comprises, in addition to the air guide 1 1, deflectors 15 arranged in the upstream air guide 1 1 and arranged to direct the air flow F towards the housing 5 of the heat exchangers 101 and 102.
- the distributor 10 includes a plurality of upstream deflectors 15 arranged in a row or several rows, this or these rows being notably substantially parallel to a surface 107 of the heat exchanger 101.
- the deflectors 15 in the row are all identical.
- the upstream deflectors are arranged less than 5 cm, in particular less than 2 cm or less than 1 cm from the heat exchanger.
- each deflector 15 comprises a fin 21, in particular having the shape of a curve.
- Each fin 21 has a curved edge 22 in the direction of the housing
- the upstream air guide 10 comprises a common wall 28 with the housing for heat exchanger, this common wall 28 being in particular an end wall of the housing 5.
- the ventilation device 2 comprises a downstream air guide 30 arranged downstream of the heat exchangers 101 and 102 arranged in the housing 5.
- This air guide 30 has a divergent shape, namely the cross section of this air guide increases as we approach the outlet 31 of this downstream guide.
- This downstream air guide 30 has a curved shape, in particular not straight over its entire length.
- this form of the divergent can be substantially, at least over a portion of its length, parabolic or hyperbolic.
- This downstream air guide 30 has an air outlet 31 and is arranged so that its opposite end 32 to the air outlet 31 is arranged so as to be substantially adjacent to the heat exchanger which is intended to be placed in the housing.
- the downstream air guide 30 is arranged facing substantially the entire surface of the heat exchanger 102 placed in the housing 5.
- the device 1 comprises several downstream deflectors 35 arranged to direct the air flow leaving the housing 5 towards the outlet 31 of the downstream air guide.
- the downstream deflectors 35 in the row are all identical.
- downstream deflectors are arranged within 5 cm, in particular less than 2 cm or less than 1 cm from the heat exchanger.
- Each downstream deflector 35 comprises a fin, in particular having a curve shape.
- Each downstream fin 35 has a curved edge in the direction of the housing for heat exchanger.
- the upstream fins 15 and / or downstream 35 are present over substantially the entire extent of the heat exchanger (s).
- the heat exchangers 101 and 102 are arranged one behind the other in the direction of circulation of the air flow.
- the upstream air guide 10 and the downstream air guide 30 are formed on two different parts, in particular assembled together, for example with screws, these parts being in particular made of plastic.
- the part 40 on which the downstream guide 30 is formed is arranged to define at least one outlet channel 41 in which the air flow F flowing in the downstream air guide F is thrown.
- the outlet channel 41 has a Y shape so as to have two air outlet openings 42 and 43.
- the downstream air guide 30 has a common partition 44 with the outlet channel 41.
- the downstream air guide 30 communicates with the outlet channel 41 by an elbow 50 so that the air flow F which passes through this elbow 50 can make an angle greater than 90 °, in particular greater than 120 °.
- the tangential fan 2 is disposed at the outlet 31 of the downstream air guide 30.
- the tangential fan 2 is arranged in the elbow 50 which connects the downstream air guide 30 to the outlet channel 41.
- each fan 2 being at an opening 42, 43 of the outlet channel 41 which has a Y shape.
- the ventilation device 1 comprises, in addition to the tangential fans 2 disposed downstream of the heat exchangers, a tangential fan 60 disposed upstream of these heat exchangers.
- This upstream fan 60 is disposed at the inlet 12 of the upstream air guide 10.
- the housing 5 for heat exchanger is arranged so that when the ventilation device is mounted on the vehicle, the housing 5 is inclined so that the heat exchangers 101 and 102 received in this housing 5 are inclined, this inclination being in particular between 0 and 90 ° relative to the horizontal, the angles of 0 ° and 90 ° being excluded.
- This inclination is in particular between 10 ° and 80 °, for example between 40 ° and 50 °.
- the fins can be formed on a dedicated part or, alternatively, be formed with the associated air guide.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1855729A FR3082883B1 (fr) | 2018-06-26 | 2018-06-26 | Dispositif de ventilation pour vehicule automobile |
PCT/FR2019/051539 WO2020002809A1 (fr) | 2018-06-26 | 2019-06-24 | Dispositif de ventilation pour vehicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3794224A1 true EP3794224A1 (fr) | 2021-03-24 |
Family
ID=66867179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19745707.0A Pending EP3794224A1 (fr) | 2018-06-26 | 2019-06-24 | Dispositif de ventilation pour vehicule automobile |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3794224A1 (fr) |
FR (1) | FR3082883B1 (fr) |
WO (1) | WO2020002809A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3116301B1 (fr) * | 2020-11-18 | 2022-12-02 | Valeo Systemes Thermiques | Module de refroidissement pour véhicule automobile électrique ou hybride à turbomachine tangentielle avec échangeur de chaleur supplémentaire |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0887554A1 (fr) * | 1997-06-23 | 1998-12-30 | Carrier Corporation | Stabilisateur de courant pour ventilateur à courant transversal |
US6192838B1 (en) * | 1998-03-13 | 2001-02-27 | Denso Corporation | Engine cooling apparatus |
US20050023057A1 (en) * | 2003-07-24 | 2005-02-03 | Akihiro Maeda | Vehicle front end structure |
EP1715157A1 (fr) * | 2005-04-21 | 2006-10-25 | Nissan Motor Co., Ltd. | Dispositif et procédé de refroidissement pour un véhicule automobile |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT404057B (de) | 1986-02-03 | 1998-08-25 | Avl Verbrennungskraft Messtech | Wärmetauschersystem mit einem querstromlüfter |
-
2018
- 2018-06-26 FR FR1855729A patent/FR3082883B1/fr active Active
-
2019
- 2019-06-24 EP EP19745707.0A patent/EP3794224A1/fr active Pending
- 2019-06-24 WO PCT/FR2019/051539 patent/WO2020002809A1/fr unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0887554A1 (fr) * | 1997-06-23 | 1998-12-30 | Carrier Corporation | Stabilisateur de courant pour ventilateur à courant transversal |
US6192838B1 (en) * | 1998-03-13 | 2001-02-27 | Denso Corporation | Engine cooling apparatus |
US20050023057A1 (en) * | 2003-07-24 | 2005-02-03 | Akihiro Maeda | Vehicle front end structure |
EP1715157A1 (fr) * | 2005-04-21 | 2006-10-25 | Nissan Motor Co., Ltd. | Dispositif et procédé de refroidissement pour un véhicule automobile |
Non-Patent Citations (1)
Title |
---|
See also references of WO2020002809A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR3082883A1 (fr) | 2019-12-27 |
WO2020002809A1 (fr) | 2020-01-02 |
FR3082883B1 (fr) | 2020-12-04 |
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Ipc: F04D 25/16 20060101ALI20241125BHEP Ipc: B60K 11/08 20060101ALI20241125BHEP Ipc: F01P 3/18 20060101ALI20241125BHEP Ipc: F01P 11/10 20060101ALI20241125BHEP Ipc: F04F 5/16 20060101ALI20241125BHEP Ipc: F04D 17/04 20060101ALI20241125BHEP Ipc: F01P 7/10 20060101ALI20241125BHEP Ipc: F01P 5/06 20060101ALI20241125BHEP Ipc: F01P 5/02 20060101AFI20241125BHEP |
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Owner name: VALEO SYSTEMES THERMIQUES |