EP3589512A1 - Dispositif de régulation d'un flux d'air circulant au sein d'un premier échangeur de chaleur pour véhicule automobile - Google Patents
Dispositif de régulation d'un flux d'air circulant au sein d'un premier échangeur de chaleur pour véhicule automobileInfo
- Publication number
- EP3589512A1 EP3589512A1 EP18722654.3A EP18722654A EP3589512A1 EP 3589512 A1 EP3589512 A1 EP 3589512A1 EP 18722654 A EP18722654 A EP 18722654A EP 3589512 A1 EP3589512 A1 EP 3589512A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- curtain
- air flow
- air
- opening
- control 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.)
- Pending
Links
Classifications
-
- 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
- B60K11/085—Air inlets for cooling; Shutters or blinds therefor with adjustable shutters or blinds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Definitions
- cooling modules typically comprising two heat exchangers, a first heat exchanger whose function is to cool an auxiliary circuit of the vehicle, such as an air conditioning device or a charge air cooling device, by means of a so-called low temperature loop, or the condenser for the air conditioning of the vehicle cabin, and a second heat exchanger, necessary for the cooling of the vehicle engine. They are arranged on the front of the vehicle to be traversed by a flow of air entering through the radiator grille of the vehicle. They comprise a heat exchange bundle traversed by the fluid to be cooled and passed through the air from the shell.
- the two exchangers are assembled and serially aligned one after the other so that a flow of air flows successively in the two exchangers.
- the module is disposed in the vehicle so that the air flows first in the first heat exchanger and then in the second heat exchanger, due to the cooling needs of each.
- this type of module does not allow to separate the cooling of the two exchangers. This is a disadvantage because, it may be desirable in certain situations, to avoid cooling the engine so that it heats faster, especially when it starts.
- the inadvertent opening and closing of the curtain parallel to the tubes can cause thermal shocks at the exchangers. These thermal shocks impact the tubes by varying their length. This creates differential expansions at the tube legs attached to the manifolds causing leaks. The risk of leakage is increased during partial openings positioned non-homogeneously.
- the invention thus relates to a device for regulating an air flow circulating within a first heat exchanger for a motor vehicle, the regulating device comprising a curtain with a substantially horizontal winding axis and having a opening arranged so that when the curtain is moved, the control device moves from a closed configuration where the curtain completely closes a passage of the air flow to an open configuration where the curtain leaves the passage of the air flow completely open, the opening of the curtain having a width measured along the winding axis which is variable depending on the position of the curtain so as to allow a passage of variable air flow between the closed configuration and the open configuration.
- the invention makes it possible to control the flow of air of the cooling module in order to improve the coefficient of penetration into the air of the vehicle and to optimize the heating of the engine by integrating the shutter device into the space between the exchangers.
- the location of the exchangers imposes an extremely reduced environment, generally 10 to 24mm between the exchangers.
- the device is also constrained by the front of the vehicle.
- the curtain is fixed on a hermetic frame between the two exchangers.
- the curtain is unique.
- the curtain comprises at least one totally closed zone arranged to completely close the passage of the air flow.
- the curtain comprises a second zone with an opening chosen to pass an air flow of intermediate quantity less than the maximum amount of air.
- the curtain comprises a third zone with an opening chosen to pass an air flow of intermediate quantity greater than that associated with the second intermediate zone.
- the opening in at least one of the second and third zones, has a substantially rectangular or trapezoidal shape.
- the opening is disposed in the center of the curtain.
- the curtain comprises a fourth zone in which the opening is maximum where the curtain allows the passage of the air flow completely cleared.
- the curtain has a symmetry by an axis of symmetry passing in its center.
- the curtain comprises four zones.
- a first part at the top is full and allows to completely close the flow of air.
- a second zone has a limited opening allowing a small amount of air to pass through.
- a third zone is continuously expanded to a fourth zone that passes the entire airflow.
- the first zone makes it possible to completely close the air flow, thus resulting in a maximum gain in penetration coefficient and accelerating the warming of the vehicle engine.
- the curtain then rises to present its second zone and its limited opening and thus cool a minimum engine while improving a maximum coefficient of penetration.
- the curtain goes up again to present an overlap between the second zone and the third zone larger or smaller depending on the needs.
- the curtain is in fourth position, allowing complete cooling of the exchangers.
- the continuously adjustable partial opening allows the cooling to be precisely adapted and to gain maximum penetration coefficient. Moreover, the opening in the center of the exchangers makes it possible to optimize their operation and thus to gain even more in coefficient of penetration.
- the partial opening is located in the center of the exchangers perpendicularly to the tubes, thus avoiding differential expansion at the feet of tubes attached to the collectors and therefore leaks.
- the curtain comprises at least one link which connects the sides of the curtain on either side of the central opening.
- the invention also relates to a cooling module comprising
- the low temperature heat exchanger being positioned upstream of the regulating device and the high temperature heat exchanger being positioned downstream of the regulating device.
- FIG. 1 is a schematic view illustrating a control device of an air flow and a cooling module according to the invention in a view from above;
- FIG. 2 is a schematic perspective view of the elements of the device for regulating an air flow according to a first embodiment
- FIG. 1 illustrates a regulation device 12 for an air flow F and a cooling module 1 according to the invention, in particular for a motor vehicle, according to a view from above.
- the cooling module 1 comprises an upstream heat exchanger 2 and a downstream heat exchanger 4 arranged in series in the direction of flow of an air flow F therethrough.
- the cooling module 1 is configured to be disposed on a support, such as the chassis of a vehicle, so that the upstream heat exchanger 2 is traversed by an air flow F first and the heat exchanger downstream 4 in second.
- the upstream heat exchanger 2 is in the foreground and the downstream heat exchanger 4 is in a plane behind.
- the upstream heat exchanger 2 is a cooling radiator, said low temperature, for cooling a coolant of a heat exchange loop, said low temperature, including, in particular, an air conditioning condenser and / or or a charge air cooler.
- the downstream heat exchanger 4 is a high temperature cooling radiator for cooling a coolant of a heat exchange loop comprising a vehicle engine. The air flowing through this downstream exchanger 4 cools the engine coolant.
- Each exchanger 2, 4 comprises, for example, a heat exchange bundle 6 and collection chamber 8 disposed laterally on either side of the bundle 6.
- the bundle 6 is traversed by the flow of air F. comprises a set of tubes parallel to each other, opening into the collection chambers 8, for the circulation of the coolant.
- the cooling module 1 is configured to allow a substantially sealed flow of air between said heat exchangers 2,4, i.e., the upstream heat exchanger 2 and the downstream heat exchanger 4 are assembled together so that the downstream heat exchanger 4 is not directly traversed by air from outside the module.
- the flow of air F through the downstream heat exchanger 4 is derived from the flow of air F through the upstream heat exchanger 2.
- the cooling module 1 can by example include sealing means for conveying the entirety of the air flow having passed through the upstream heat exchanger 2 to the downstream heat exchanger 4 without loss of air flow.
- These sealing means may for example comprise a sheath arranged between the two upstream heat exchangers 2,4. Another alternative is to join the heat exchangers 2.4 to each other.
- the module comprises a motor-fan unit 10 adapted to circulate the air in the cooling module 1 .
- the motor-fan unit 10 is disposed downstream of the downstream heat exchanger 4, the motor-fan unit 10 being configured to suck the air from an air intake of the vehicle, which is preferably defined by its calender.
- the cooling module 1 further comprises a regulation device 12 of the air flow arranged between the upstream heat exchanger 2 and the downstream heat exchanger 4.
- the regulating device 12 controls the passage of the flow air flow F of the upstream heat exchanger 2 to the downstream heat exchanger 4 through retractable curtains 14, or in other words sliding flaps or roll-out films.
- the curtains 14 can pass from a closed or closed configuration where they completely block the passage of the air flow F to an open or opening configuration where they release as much as possible the passage of the air flow. F.
- the curtains 14 do not impede the flow of the air flow F, or in other words, the curtains 14 are positioned so as to allow the flow of air F to pass through with a flow rate of maximum air.
- the curtains 14 can obviously adopt any intermediate position.
- the curtains are for example made of glass fibers, especially glass fibers impregnated with PTFE.
- FIG 2 illustrates a more detailed schematic view of the regulating device 12 according to the invention in a front view.
- the regulating device 12 comprises two curtains 14 each winding or unwinding around a support 16 to move from the open configuration to the closed configuration.
- the supports 16 are adapted to allow winding or unfolding curtains 14. They may for example be in the form of a roller that is to say a right circular cylinder (or cylinder of revolution with bases being delimited by two equal and parallel circles) as shown in Figure 2.
- the regulating device 12 comprises a motor or actuator 18.
- the curtains 14 may also comprise at their end a sealing lip 20.
- the regulating device 12 may comprise a closure element 22, which corresponds to an element on which the curtains 14 come to bear at the end of the stroke in the closed configuration, namely when they are unrolled.
- FIG. 3 shows another embodiment of the invention.
- the curtain 30 has a substantially horizontal winding axis when the device is mounted on the vehicle, while in the previous example the winding axis is vertical.
- This curtain 30 has a total unwrapped opening 31 arranged so that when the curtain 30 is moved, the control device passes from a closed configuration where the curtain 30 completely closes a passage of the air flow to an open configuration where the curtain 30 leaves the passage of the air flow completely clear, the opening 31 of the curtain 30 having a width measured along the winding axis Z which is variable depending on the position of the curtain so as to allow a passage of Variable airflow between the closed configuration and the open configuration.
- the single curtain 30 is attached to a hermetic frame 32 between the two exchangers.
- the curtain 30 comprises:
- the curtain 30 has a symmetry by an axis of symmetry SY passing in its center.
- the curtain comprises at least one link 45 which connects the sides of the curtain on both sides of the central opening
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1752600A FR3064550B1 (fr) | 2017-03-28 | 2017-03-28 | Dispositif de regulation d'un flux d'air circulant au sein d'un premier echangeur de chaleur pour vehicule automobile |
PCT/FR2018/050754 WO2018178570A1 (fr) | 2017-03-28 | 2018-03-28 | Dispositif de régulation d'un flux d'air circulant au sein d'un premier échangeur de chaleur pour véhicule automobile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3589512A1 true EP3589512A1 (fr) | 2020-01-08 |
Family
ID=58993081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18722654.3A Pending EP3589512A1 (fr) | 2017-03-28 | 2018-03-28 | Dispositif de régulation d'un flux d'air circulant au sein d'un premier échangeur de chaleur pour véhicule automobile |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3589512A1 (fr) |
FR (1) | FR3064550B1 (fr) |
WO (1) | WO2018178570A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA3225804A1 (fr) * | 2021-08-09 | 2023-02-16 | Jeffrey Bruce MANHIRE | Panneau d'ouverture centrale pour commander un flux d'air a travers un echangeur thermique |
FR3135752A1 (fr) * | 2022-05-17 | 2023-11-24 | Valeo Systemes Thermiques | Dispositif de régulation d’un flux d’air d’un véhicule automobile et module de régulation thermique |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2340982A (en) * | 1942-01-22 | 1944-02-08 | Lola M Patterson | Conditioning attachment for automobiles |
US8302714B2 (en) * | 2010-02-19 | 2012-11-06 | GM Global Technology Operations LLC | Impact and damage resistant front end airflow control device |
DE102010012485A1 (de) * | 2010-03-24 | 2011-09-29 | GM Global Technology Operations LLC , (n. d. Ges. d. Staates Delaware) | Kühleinrichtung für ein Kraftfahrzeug |
DE102012109503A1 (de) * | 2012-10-05 | 2014-04-10 | Hbpo Gmbh | Rollomodul für ein Kühlmodul eines Fahrzeugs sowie Frontendelement für ein Fahrzeug |
-
2017
- 2017-03-28 FR FR1752600A patent/FR3064550B1/fr active Active
-
2018
- 2018-03-28 WO PCT/FR2018/050754 patent/WO2018178570A1/fr unknown
- 2018-03-28 EP EP18722654.3A patent/EP3589512A1/fr active Pending
Also Published As
Publication number | Publication date |
---|---|
FR3064550B1 (fr) | 2021-03-05 |
WO2018178570A1 (fr) | 2018-10-04 |
FR3064550A1 (fr) | 2018-10-05 |
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