EP3732379A1 - Dispositif de ventilation pour vehicule automobile - Google Patents
Dispositif de ventilation pour vehicule automobileInfo
- Publication number
- EP3732379A1 EP3732379A1 EP19707439.6A EP19707439A EP3732379A1 EP 3732379 A1 EP3732379 A1 EP 3732379A1 EP 19707439 A EP19707439 A EP 19707439A EP 3732379 A1 EP3732379 A1 EP 3732379A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tubes
- ventilation device
- air
- blowing
- flow
- 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- Withdrawn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
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
- 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
-
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/14—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid
- F04F5/16—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
-
- 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
- F01P7/00—Controlling of coolant flow
- F01P7/02—Controlling of coolant flow the coolant being cooling-air
- F01P7/10—Controlling of coolant flow the coolant being cooling-air by throttling amount of air flowing through liquid-to-air heat exchangers
Definitions
- the invention relates to a ventilation device for a motor vehicle.
- the invention relates to the field of the automobile, 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 referred to as " fins "or" spacers ".
- 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 to the tubes and the fins.
- Such a ventilation device most often comprises a propeller fan, which has several disadvantages.
- the assembly formed by the propeller fan and its motorization device occupies a large volume.
- the distribution of the air vented by the propeller, often placed in the center of the row of tubes, is not homogeneous over the entire surface of the heat exchanger.
- some regions of the heat exchanger such as the ends of the heat pipes and the corners of the heat exchanger, are not or only slightly reached by the air flow ejected by the propeller.
- the blades of the propeller obstruct or "mask” in part the flow of ambient air to the tubes and fins. This limits the exchange of heat between the ambient air, on the one hand, and the tubes and fins, on the other hand.
- Another disadvantage is that, when the outside temperature is low or negative, the fan propeller blows cold air on the heat exchanger, which has the effect of slowing the temperature rise of the vehicle engine.
- An object of the invention is to provide a ventilation device for heat exchanger not having at least some of the disadvantages of known heat exchanger ventilation devices.
- the subject of the invention is a ventilation device for a motor vehicle, comprising tubes, each tube being provided with at least one ejection opening of an air flow distinct from its ends in a given direction. said blowing direction, at least two tubes being configured to generate an air flow in a first blowing direction and in a second blowing direction respectively, the first and second blowing directions forming between them a non-zero angle.
- the plurality of tubes from which air is ejected makes it possible to replace the conventional propeller disposed in front of the circulation tubes of a heat transfer fluid of the heat exchanger, without presenting the disadvantages mentioned above.
- the volume occupied by such a ventilation device is much less than a propeller ventilation device.
- the distribution of air vented by the tubes is easier to control and can be made more homogeneous.
- it limits the obstruction of the flow of air to the heat exchanger.
- the tubes of the ventilation device can advantageously be arranged facing areas of low heat exchange of the heat exchanger, called “dead zones", such as the end faces of the tubes through which the heat transfer fluid, which does not are not in contact with cooling fins. This is not possible with a conventional propeller.
- the invention makes it possible to deport the air ejection means supplying air flow to the tubes of the ventilation device, at a distance from the row of heat transfer fluid circulation tubes, which offers greater freedom in the design of the heat exchanger.
- the ventilation device according to the present invention can simultaneously cool several heat exchangers, which is particularly advantageous for an electric vehicle. Indeed, it is known to recharge such a vehicle in a very fast charging mode which involves very large electrical power (more than 300kW). A very large heat peak (more than 10kW) is then generated at the battery.
- a first portion of the tubes are configured to generate an air flow in respective blowing directions parallel to the first blowing direction and a second portion of the tubes are configured to generate a flow of air. air in respective blowing directions parallel to the second blowing direction.
- the device comprises a fluidic partitioning element of the first part of tubes and of the second part of tubes so as to make the first part of tubes and the second part of tubes fluidly independent.
- the partitioning element extends horizontally in a working position of the ventilation device.
- the partition element extends vertically in a working position of the ventilation device.
- two adjacent tubes of said at least one row of tubes blowing respectively according to the first and second blowing directions are two adjacent tubes of said at least one row of tubes blowing respectively according to the first and second blowing directions.
- the angle formed by the first and second blowing directions is obtuse, preferably of the order of 180 °.
- the device comprises a turbomachine supplying air to each tube ejecting a flow of air in the first direction of blowing and a separate turbomachine supplying air to each tube ejecting a flow of air. air in the second direction of blowing.
- each tube has a section comprising a leading edge, a trailing edge, opposite the edge first and second profiles, each extending between the leading edge and the trailing edge, said at least one opening of the tube being on one of the first and second profiles, said at least one opening being configured so that an airflow exiting the opening flows along at least a portion of said one of the first and second profiles.
- At least one of the tubes is mounted orientable.
- the invention also relates to an exchange module comprising a ventilation device as described above, and a first and a second heat exchanger disposed on either side of the ventilation device so that a flow of air emitted by the ventilation device in the first direction supplies air to the first heat exchanger and a flow of air emitted by the ventilation device in the second direction supplies air to the second heat exchanger.
- FIG. 1 illustrates a perspective view of a heat exchange module equipped according to the present invention
- FIG. 2 illustrates a view from above of the module of FIG. 1;
- FIG. 3 illustrates a perspective view of a ventilation device of FIG. 1 according to a first embodiment
- FIG. 4 illustrates a perspective view of the ventilation device of FIG. 1 according to a second embodiment
- FIG. 5 illustrates a partially exploded perspective view of the ventilation device of FIG. 1 according to a third embodiment
- - Figure 6 illustrates a sectional view of a tube of the ventilation device of Figure 1;
- FIG. 7 illustrates a cross-sectional view of the ventilation device of Figure 3 according to an alternative embodiment
- - Figure 8 illustrates a schematic view of the ventilation device of Figure 4 according to an alternative embodiment
- FIG. 9a illustrates a schematic view of the ventilation device according to another variant embodiment of the invention.
- FIGS. 9b and 9c illustrate cross-sectional views, respectively in high and low positions, of the device of FIG.
- FIG. 10a shows a schematic view of the ventilation device of Figure 5 according to another embodiment
- FIGS. 10b to 10e show transverse sectional views, respectively at four adjacent tubes, of the device of FIG. 10a;
- FIGS. 11a to 11e show cross sectional views of the ventilation device of FIG. 5, respectively at four adjacent tubes.
- the subject of the invention is a ventilation device 1 for a motor vehicle.
- the invention also relates to a heat exchange module 100 for fitting a front face of a motor vehicle.
- the module 100 comprises the ventilation device 1 configured to supply air to a first heat exchanger 101 and a second exchanger 102.
- the first exchanger 101 is arranged upstream of the device of ventilation 1 relative to a flow of air f from the outside of the vehicle in the front of the vehicle.
- the second exchanger 102 is disposed downstream of the ventilation device 1 relative to a flow of air f from the outside of the vehicle in the front face of the vehicle.
- the ventilation device 1 comprises a plurality of tubes 3.
- the tubes 3 are substantially rectilinear, parallel to each other and aligned so as to form a row of tubes.
- the ventilation device 1 also comprises an air supply device for an air flow F.
- the air supply circuit 4 comprises in particular two air intake manifolds 5-1, 5-2 to which the ventilation tubes are connected. 3 via air supply inlets at each of their ends 6, 7.
- the collector 5-1 is secured to the tubes 3 by the end 6 while the collector 5-2 is secured to the tubes 3 by the end 7.
- the supply circuit also comprises two turbomachines 8-1 and 8-2.
- each ventilation tube 3 delimits a blowing grid disposed between the collectors 5-1, 5-2.
- each ventilation tube 3 comprises an opening 10 distinct from the ends 6, 7, to eject the air out of the tube 3.
- Each tube 3 comprises a longitudinal wall 50, a cross section comprising a leading edge 1 1 free, a trailing edge 15 and a first and second profiles 12, 14, each extending between the leading edge 1 1 and the trailing edge 15.
- the trailing edge 15 is preferably arranged facing one of the heat exchangers 101, 102.
- Each opening 10 is made in the longitudinal wall 50 of the tube 3, preferably in one or the other of the profiles 12, 14.
- each opening 10 is positioned near the leading edge 11.
- the ventilation tubes 3 and their openings 10 are configured so that the flow of air F flowing in the ventilation tubes 3 is ejected through the opening 10 by flowing along each profile 12, substantially until at their trailing edges 52, by Coanda effect. It should be noted that the transverse cross-sections of the tubes 3 are such that the profiles 12 extend in a direction away from the tubes 3 from the leading edges 11 to the trailing edges 15.
- At least two tubes 3 are configured to generate an air flow respectively in a first blowing direction F1 and a second blowing direction F2, the first and second blowing directions delimiting between them an angle no one
- This configuration makes it possible to supply a plurality of heat exchangers in parallel.
- each tube 3 is delimited by a partition wall 10 into a first part 3-1 and a second tube part 3-2.
- the partition wall 10 is disposed orthogonally to the tubes 3.
- the partition wall 10 extends substantially vertically in a working position of the ventilation device, especially when the ventilation device 1 is installed in a motor vehicle.
- the partition wall 10 prevents any fluid communication between the first tube portion 3-1 and the second tube portion 3-2.
- the first part 3-1 extends between the end 6 integral with the collector 5-1 and the partition wall 10.
- the second part 3-2 extends between the end 7 secured to the collector
- Each first portion 3-1 is configured to blow a flow of air in a main direction parallel to the first blowing direction F1.
- Each second portion 3-2 is configured to blow a flow of air in a main direction parallel to the second blowing direction F2.
- the set of first parts of tubes 3-1 constitutes a first part 1 -1 of the ventilation device 1, while the set of second parts of tubes 3-2 constitutes a second part 1 -2 of the ventilation device 1.
- the first part of the ventilation device 1 -1 is intended to supply air to the first heat exchanger 101 while the second part of the ventilation device 1 -2 is intended to supply air to the second heat exchanger 102.
- the first turbine engine 8-1 is dedicated to the air supply of the first parts of tubes 3-1 while the second turbomachine 8-2 is dedicated to supplying air to the second parts of tubes 3-2. This arrangement makes it possible to parameterize each turbine engine according to the aeraulic power required to supply air to the associated heat exchanger.
- the partition wall is disposed in the middle of each tube 3.
- the invention is not limited to this geometry and, depending on the dimensions of the exchangers 101 and 102, depending on the respective aeraulic power required, it is possible that the partition is arranged so that one of the parts 3-1 , 3-2 is longer than the other 3-2, 3-1. It is also possible that the partition wall 10 is not continuous.
- the partition wall 10 may comprise internal partitions of each tube 3, without extending outside each of the tubes 3.
- each tube 3 comprises a partition comprising an inner portion 10 'and an outer portion 10 "for guiding the flow of air exiting the tube 3.
- the partition wall 10 is discontinuous.
- the ventilation device 1 comprises a first part 1 -1 and a second part 1 -2.
- the first part 1 -1 comprises a set of six adjacent tubes while the second part 1-2 comprises a set of six adjacent tubes.
- the first and second parts 1 -1, 1 -2 are separated from each other by a separating element 10.
- the separating element 10 comprises a partition extending from the first collector 5-1, in a so-called separation tube, referenced 3-s, to the second collector 5-2.
- the partition wall 10 is arranged parallel to the tubes 3.
- the partition wall 10 extends substantially horizontally in a working position of the ventilation device, especially when the ventilation device 1 is installed in a motor vehicle.
- the partition wall 10 makes it possible to prevent any fluid communication between the first part of 1 -1 and the second part of the tube 1 -2.
- the partition can extend only into the manifolds 5-1 and 5-2, as illustrated in FIG. 8.
- the first portion 1 -1 is configured to blow a flow of air in a main direction parallel to the first direction of blowing F1.
- the second part 1-2 is configured to blow a flow of air in a main direction parallel to the second blowing direction F2.
- the first 1 -1 is intended to supply air to the first heat exchanger 101 while the second part 1 -2 is intended to supply air to the second heat exchanger 102.
- the first turbomachine 8-1 is dedicated to the air supply of the tubes 3-1 of the first part 1 -1 while the second turbomachine 8-2 is dedicated to the air supply of the tubes 3-2 of the second part 1 -2.
- This arrangement makes it possible to parameterize each turbine engine according to the aeraulic power required to supply air to the associated heat exchanger.
- a separating element 20 is disposed between the first part 1 -1 and the second part 1 -2, in order to better separate the air flows F1 and F2.
- each tube 3 is separated into two parts, the first part being fed by the first collector and the second part by the second collector, the outgoing flows being parallel and in the same direction.
- the ventilation device 1 comprises a first part 1 -1 and a second part 1 -2.
- the first part 1 -1 comprises a set of tubes 3-1 for supplying air to the first heat exchanger 101.
- the second part 1 -2 comprises a set of tubes 3-2 for supplying air to the second heat exchanger 102.
- each tube of the first part 1 -1 is adjacent to a tube of the second part 1-2.
- the direction F1 and the direction F2 form an obtuse angle of the order of 180 °.
- leading edges 1 1 -1 of the tubes 3-1 are substantially aligned with the trailing edges 15-2 of the tubes 3-2, and the leading edges 11 -2 of the 3-2 tubes are substantially aligned with the leak edges 15-1 of the tubes 3-1.
- the collectors 5-1 and 5-2 are shaped to blow selectively in the associated tubes 3-1, 3-2 respectively, as particularly visible in Figures 11a to 11e.
- the collector 5-1 is closed at the ends 6-2 of the tubes 3-2 and has orifices only to receive the end 6-1 of the tubes 3-1.
- the collector 5-2 is closed at the ends 7-1 of the tubes 3-1 and has orifices only to receive the end 7-2 of the tubes 3-2.
- At least one of the tubes is pivotally mounted, preferably pivotable about a respective longitudinal axis.
- all the tubes 3 are pivotally mounted about respective longitudinal axes between a closed position and an open position, the closed position leaving a space between two adjacent tubes 3 less than a space between two adjacent tubes 3 in the open position. Guiding elements
- the ventilation device 1 comprises one or more elements for guiding the air towards the heat exchangers 101, 102, which makes it possible to ensure that a maximum quantity of air circulates from the ventilation device 1 until to the heat exchangers 101, 102. This is the case in FIGS. 7 and 8-heat exchange module
- the subject of the invention is also the exchange module 100. It should be noted that the ventilation device is provided with means for securing the collectors to each of the heat exchangers 101, 102.
- the first heat exchanger 101 is a condenser and the second heat exchanger 102 is a low temperature radiator.
- the first heat exchanger 101 is the low-temperature radiator and the second heat exchanger 102 the condenser.
- the configuration of the module 100 allows simultaneous cooling in parallel of the condenser 101 and the low-temperature radiator 102, which ensures that the air intended to cool the low-temperature radiator 102 is not previously heated by the condenser 101.
- the two exchangers 101, 102 are solicited sirriultaneously, in which case the air f from the outside of the vehicle, is heated by the condenser 101 before entering the low temperature radiator 102.
- the ratio of the number of tubes blowing towards the condenser is for example between 50% and 80%, in particular of the order of 70%.
- the partition wall 10 is included only in the collectors 5-1 and 5-2.
- the partition 10 comprises a longitudinal partitioning of the collector 5-1 and a longitudinal partitioning of the collector 5-2.
- the flows of the air flows F1 and F2 are similar to those described with reference to FIGS. 3 and 4.
- the flows of the air flows F1 and F2 are similar to those described with reference to FIG.
- the configuration according to the present invention makes it possible to supply two heat exchangers in parallel directly between the condenser and the low-temperature radiator in order to exert a parallel supply of air to the exchangers.
- the tubes are not necessarily profiled to allow a coanda effect.
- the invention is not limited to a single row of tubes.
- the invention is not limited to two turbomachines. It can be envisaged that a single turbomachine supplies all the tubes of the ventilation device, or on the contrary that more than two turbomachines supply the ventilation device.
- the invention is not limited to two parts of the ventilation device.
Landscapes
- 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)
- Transportation (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air-Flow Control Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1850815A FR3077333B1 (fr) | 2018-01-31 | 2018-01-31 | Dispositif de ventilation pour vehicule automobile |
| PCT/FR2019/050226 WO2019150051A1 (fr) | 2018-01-31 | 2019-01-31 | Dispositif de ventilation pour vehicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3732379A1 true EP3732379A1 (fr) | 2020-11-04 |
Family
ID=61802188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19707439.6A Withdrawn EP3732379A1 (fr) | 2018-01-31 | 2019-01-31 | Dispositif de ventilation pour vehicule automobile |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3732379A1 (fr) |
| FR (1) | FR3077333B1 (fr) |
| WO (1) | WO2019150051A1 (fr) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008020310B4 (de) * | 2008-04-23 | 2019-12-19 | Audi Ag | Kraftfahrzeug mit zwei Wärmetauschern |
| GB2468323A (en) * | 2009-03-04 | 2010-09-08 | Dyson Technology Ltd | Fan assembly |
| GB2468320C (en) * | 2009-03-04 | 2011-06-01 | Dyson Technology Ltd | Tilting fan |
| JP2015001155A (ja) * | 2013-06-13 | 2015-01-05 | カルソニックカンセイ株式会社 | 冷却装置 |
| JP2015217829A (ja) * | 2014-05-19 | 2015-12-07 | 本田技研工業株式会社 | 車両の冷却構造 |
-
2018
- 2018-01-31 FR FR1850815A patent/FR3077333B1/fr not_active Expired - Fee Related
-
2019
- 2019-01-31 EP EP19707439.6A patent/EP3732379A1/fr not_active Withdrawn
- 2019-01-31 WO PCT/FR2019/050226 patent/WO2019150051A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3077333B1 (fr) | 2020-05-22 |
| FR3077333A1 (fr) | 2019-08-02 |
| WO2019150051A1 (fr) | 2019-08-08 |
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