WO2023134915A1 - Nozzle of a fan-motor unit - Google Patents

Nozzle of a fan-motor unit Download PDF

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Publication number
WO2023134915A1
WO2023134915A1 PCT/EP2022/083730 EP2022083730W WO2023134915A1 WO 2023134915 A1 WO2023134915 A1 WO 2023134915A1 EP 2022083730 W EP2022083730 W EP 2022083730W WO 2023134915 A1 WO2023134915 A1 WO 2023134915A1
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WO
WIPO (PCT)
Prior art keywords
flap
nozzle
opening
rotation
axis
Prior art date
Application number
PCT/EP2022/083730
Other languages
French (fr)
Inventor
Daniel Pereira
Fernando FERNANDES PEREIRA DA VENDA
Lydia ROMANET
Zoulikha Soukeur
Fabien LETERME
Patrick Fernandes
Original Assignee
Valeo Systemes Thermiques
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valeo Systemes Thermiques filed Critical Valeo Systemes Thermiques
Publication of WO2023134915A1 publication Critical patent/WO2023134915A1/en

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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
    • 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

Definitions

  • the invention relates to a cooling module for a vehicle engine, in particular an automobile engine, and more particularly to a cooling module nozzle for a vehicle engine.
  • a fan motor unit generally includes a propeller, a motor to turn it, and a nozzle mounted around the fan and used to support the assembly.
  • the nozzle is attached to the cooling module or the chassis of the vehicle. It defines a space, arranged at the level of the propeller to allow the passage of air.
  • the nozzle can be provided with orifices with movable flaps.
  • the movable shutters In the open position, the movable shutters allow air to pass through the opening, and in the closed position, they block the passage of air.
  • a flap opens by the dynamic pressure of the airflow when the vehicle is traveling at a sufficiently high speed and closes, by gravity and vacuum, when the cooling module operates at low vehicle speed.
  • movable shutters for ease of opening and closing, extend mainly along a horizontal axis. They each have a connection arranged in their upper part in order to have a major part of the flap remaining free and acting as a counterweight for the correct folding of the flap in the closed position.
  • this arrangement mainly along a horizontal axis of the flaps, on a surface of the nozzle between the propeller and the edge of the nozzle, which is a surface which extends mainly in a vertical direction results in a loss of opening surface .
  • each flap must be connected to the nozzle by its upper part, which makes it necessary to leave strips of material on the nozzle to leave room for the connectors of the flaps, which reduces the total surface of the passage opening of air when the flaps are in the open position and thus reduces the cooling capacity of the vehicle's engine.
  • the aim of the present invention is to remedy the problems cited above and aims to improve the cooling capacities of the cooling module.
  • the subject of the invention is a motorized fan unit nozzle for a cooling module comprising a wall provided with at least one air passage opening for the passage of an air flow, as well as a shutter mounted pivoting relative to an axis of rotation to control the passage of the air flow through the air passage opening, the flap comprises an open position which allows the passage of air and a closed position which blocks the passage of air, characterized in that the axis of rotation of the shutter is arranged in a vertical direction.
  • a vertical opening of the shutter allows better optimization of the air passage opening on the nozzle, the space available on the nozzle being mainly vertical. This arrangement then makes it possible to increase the opening surface which allows greater cooling.
  • the axis of rotation of the flap is inclined at an angle A with respect to a main plane PI in which the nozzle extends. Rotating the shutter around a vertical direction loses the effect of gravity for closing the shutter and lowers the effort required to open the shutter.
  • the arrangement of the axis of rotation in an inclined plane with respect to the nozzle allows by the force of gravity without the addition of additional means to allow the shutter to close.
  • the closed position of the flap being a position of the flap at rest, in the absence of a sufficiently large flow of air to make it turn.
  • the angle A of the axis of rotation of the flap is greater than or equal to 10° relative to the main plane PI in which the nozzle extends.
  • the flap is of a height at least greater than half the height of the nozzle.
  • the nozzle comprises a helix opening intended for the arrangement of a helix and the axis of rotation of the flap is positioned on a side opposite the helix opening so that a free part of the flap is positioned on the side of the propeller opening so that the air flow passing through the air passage opening of the flap converges with the air flow pulsating through the helix opening when the flap is in an intermediate position between the closed and open positions.
  • the axis of rotation is formed from the lower and upper edges of the flap by extensions pivoting in articulation means positioned on either side of the passage opening of 'air.
  • at least one of the extensions of the flap comprises a rotation stop in order to delimit the opening position of the flap which corresponds to a maximum opening of the flap and intended to rest on a surface nozzle support.
  • the rotation stop extends radially to the axis of rotation of the flap.
  • the rotation stop extends on either side of the axis of rotation of the flap symmetrically to a main plane P2 in which the flap extends.
  • the shutter comprises at least one rib intended to act as weight in order to optimize the closing of the shutter.
  • the at least one rib is positioned in a lower part of the shutter.
  • the advantage of positioning in the lower part of the flap is to increase a leverage effect to facilitate the closing of the flap, the lower part being further from the main plane PI of the nozzle.
  • the at least one rib is arranged on a front face of the flap, face from which the air flow arrives.
  • the rib allows, in addition to its weight function for the proper closing of the shutter in the closed position, to increase the air intake to facilitate the opening of the shutter when the air flow exerts sufficient pressure on the front face.
  • the rib protrudes from the front face of the shutter with a downward inclination of the shutter. This has the advantage of optimizing the air intake of the rib and thus facilitating the opening of the shutter by the action of the air flow.
  • the rib protrudes from the front face of the shutter and perpendicular to the front face.
  • FIG 1 is a schematic perspective view of the nozzle according to the invention with the front face of the flap;
  • FIG 2 is a schematic enlarged perspective view of the flap of the nozzle of Figure 1;
  • FIG 3 is a schematic perspective view of an upper part of the shutter of the previous figures;
  • FIG 4 is a schematic cross-sectional view of a lower part of the shutter of Figures 1 and 2.
  • a direction of a longitudinal axis L, a direction of a transverse axis T, and a direction of a vertical axis V are represented by a trihedron (L, T, V) in the figures.
  • a horizontal plane as being a plane perpendicular to the vertical axis V
  • a longitudinal plane as being a plane perpendicular to the transverse axis T
  • a transverse plane as being a plane perpendicular to the longitudinal axis L.
  • Figure 1 schematically illustrates in perspective a motorized fan nozzle 100 for a cooling module according to the invention.
  • a cooling module generally comprises at least one heat exchanger, such as an engine radiator and/or a condenser, of an air conditioning system, to cool a fluid by circulating air through the module.
  • the motor-fan unit has the function of activating a circulation of an air flow in the heat exchanger when the vehicle is stationary or moving at low speed.
  • the nozzle 100 has an internal shroud 101, intended to support the propeller and the motor of the motorized fan unit, not illustrated in the figures, and an outer shroud 102 configured to guide the air, the two shrouds 101, 102 being maintained to each other by arms 103, such as stator blades. Between the two shells 101, 102, a propeller opening 104 allows the passage of air activated by the propeller.
  • the nozzle 100 has a wall 105 extended around the outer shroud 102, and which here has at least one fixing flange 106 for the assembly of the nozzle 100 and therefore of the motorized fan unit to one of the exchangers of the module of cooling.
  • the motor-fan unit nozzle 100 comprises a motor-fan unit nozzle 100 for a cooling module comprising a wall 105 provided with at least an air passage opening 1 for the passage of an air flow, as well as a flap 2 mounted pivoting with respect to an axis of rotation 3 to control the passage of the air flow through the opening 1 of air passage, the flap 2 comprises an open position which allows the passage of air and a closed position which blocks the passage of air, characterized in that the axis of rotation 3 of the flap 2 is disposed in a vertical direction V.
  • the open position of flap 2 allows the passage of air through the nozzle 100 when the vehicle is moving and the closed position which blocks the passage of air when the vehicle is stationary or moving at low speed.
  • a vertical opening of the shutter 2 allows a better optimization of the opening 1 of air passage on the nozzle 100, the space available on the nozzle 100 being mainly vertical. This arrangement then makes it possible to increase the opening surface which allows greater cooling.
  • the axis of rotation 3 of the flap 2 is inclined at an angle A relative to a main plane PI in which the nozzle 100 extends.
  • a rotation of the flap 2 around a vertical direction V loses the effect of gravity for closing the flap 2 and lowers the force required to open the flap 2.
  • the arrangement of the axis of rotation 3 in an inclined plane with respect to the nozzle 100 allows by the force of gravity without the addition of additional means to allow the shutter 2 to close.
  • the closed position of the flap 2 being a position of the flap 2 at rest, in the absence of a sufficiently large flow of air to cause it to rotate.
  • the angle A of the axis of rotation 3 of the flap 2 is greater than or equal to 10° relative to the main plane PI in which the nozzle 100 extends.
  • the flap 2 is of a height at least greater than half the height of the nozzle 100.
  • the nozzle 100 comprises a helix opening 104 intended for the arrangement of a helix and the axis of rotation 3 of the flap 2 is positioned on an opposite side 4 to the helix opening 104 so that a part free 5 of the shutter 2 is positioned on the side of the propeller opening 104 so that the air flow passing through the air passage opening 1 of the shutter 2 converges with the flow of air pulsed through the helix opening 104 when the flap 2 is in an intermediate position between the closed and open positions.
  • At least one of the extensions 8 of the shutter 2 comprises a rotation stop 10 in order to delimit the opening position of the shutter 2 which corresponds to a maximum opening of the shutter 2 and intended to s press on a support surface of the nozzle 100.
  • the rotation stop 10 extends radially to the axis of rotation 3 of the flap 2.
  • the rotation stop 10 extends on either side of the axis of rotation 3 of the flap 2 symmetrically to a main plane P2 in which the flap 2 extends.
  • symmetrical flap 2 which can be arranged on one side or the other of the nozzle 100 without the need to provide a new flap 2 dedicated to the other side.
  • the flap 2 comprises at least one rib 11 intended to act as a weight in order to optimize the closing of the flap 2.
  • the at least one rib 11 is positioned in a lower part 12 of the flap 2 as illustrated mainly in figure 4.
  • the advantage of positioning in the lower part 12 of the shutter 2 is to increase a leverage effect to facilitate the closing of the shutter 2, the lower part 12 being further from the main plane PI of the nozzle 100.
  • the at least one rib 11 is arranged on a front face 13 of the flap 2, face from which the air flow arrives.
  • the rib 11 allows in addition to its weight function for the good closure of the flap 2 in the closed position to increase the air intake to facilitate the opening of the flap 2 when the air flow exerts sufficient pressure on the front face 13.
  • the rib 11 protrudes from the front face 13 of the flap 2 with a downward inclination of the flap 2. This has the advantage of optimizing the air intake of the rib 11 and thus of facilitating the opening of the flap 2 by the action of the air flow.
  • the rib 11 protrudes from the front face 13 of the flap 2 and perpendicular to the front face 13.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Motor Or Generator Frames (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to a nozzle (100) of a fan-motor unit for a cooling module comprising a wall (105) provided with at least one airflow opening (1) for allowing an airflow to flow through and a flap (2) that is mounted pivotably relative to an axis of rotation (3) for controlling the flow of the airflow through the airflow opening (1), the flap (2) comprising an open position that allows air to flow through and a closed position that prevents air from flowing through, which nozzle is characterised in that the axis of rotation (3) of the flap (2) is arranged in a vertical direction (V).

Description

DESCRIPTION DESCRIPTION
TITRE : BUSE DE GROUPE MOTO-VENTILATEUR TITLE: MOTOR-FAN ASSEMBLY NOZZLE
Domaine technique Technical area
L’invention concerne un module de refroidissement pour moteur de véhicule, notamment automobile, et plus particulièrement une buse de module de refroidissement pour moteur de véhicule. The invention relates to a cooling module for a vehicle engine, in particular an automobile engine, and more particularly to a cooling module nozzle for a vehicle engine.
Technique antérieure Prior technique
Il est connu d’utiliser des groupes moto-ventilateurs afin de faire circuler de l’air à travers le module. En effet, lorsque le véhicule ne se déplace pas à une vitesse suffisante pour que l’air refroidisse le radiateur, le groupe moto-ventilateur est mis en route pour prendre le relais et conserver un refroidissement suffisant du moteur. It is known to use motorized fan units in order to circulate air through the module. In fact, when the vehicle is not moving at a sufficient speed for the air to cool the radiator, the fan assembly is started to take over and maintain sufficient cooling of the engine.
Un groupe moto-ventilateur comprend, généralement, une hélice, un moteur pour la faire tourner, et une buse montée autour du ventilateur et servant à supporter l’ensemble. La buse est fixée au module de refroidissement ou au châssis du véhicule. Elle définit un espace, agencé au niveau de l’hélice pour permettre le passage d’air. A fan motor unit generally includes a propeller, a motor to turn it, and a nozzle mounted around the fan and used to support the assembly. The nozzle is attached to the cooling module or the chassis of the vehicle. It defines a space, arranged at the level of the propeller to allow the passage of air.
Pour augmenter la circulation d’air à travers la buse, celle-ci peut être pourvue d’orifices munis de volets mobiles. En position ouverte, les volets mobiles laissent passer l’air dans l’orifice, et en position fermée, ils bloquent le passage de l’air. Un tel volet s’ouvre par la pression dynamique du flux d’air lorsque le véhicule roule à une vitesse suffisamment élevée et se ferme, par gravité et par dépression, lorsque le module de refroidissement fonctionne à faible vitesse du véhicule. To increase the flow of air through the nozzle, it can be provided with orifices with movable flaps. In the open position, the movable shutters allow air to pass through the opening, and in the closed position, they block the passage of air. Such a flap opens by the dynamic pressure of the airflow when the vehicle is traveling at a sufficiently high speed and closes, by gravity and vacuum, when the cooling module operates at low vehicle speed.
Ces volets mobiles, pour une facilité d’ouverture et de fermeture, s’étendent principalement selon un axe horizontal. Us possèdent pour chacun d’eux une connectique disposée dans leur partie supérieure afin d’avoir une majeure partie du volet restante libre et faisant office de contrepoids pour le bon rabattement du volet en position fermée. Or cette disposition principalement selon un axe horizontal des volets, sur une surface de la buse comprise entre l’hélice et le bord de la buse qui elle est une surface qui s'étend principalement dans une direction verticale entraîne une perte de surface d’ouverture. En effet, chaque volet devant être connecté à la buse par sa partie supérieure, ce qui oblige à laisser des bandes de matière sur la buse pour laisser de la place pour la connectique des volets, ce qui réduit la surface totale d’ouverture de passage d’air lorsque les volets sont en position ouverte et réduit ainsi la capacité de refroidissement du moteur du véhicule. These movable shutters, for ease of opening and closing, extend mainly along a horizontal axis. They each have a connection arranged in their upper part in order to have a major part of the flap remaining free and acting as a counterweight for the correct folding of the flap in the closed position. However, this arrangement mainly along a horizontal axis of the flaps, on a surface of the nozzle between the propeller and the edge of the nozzle, which is a surface which extends mainly in a vertical direction, results in a loss of opening surface . In fact, each flap must be connected to the nozzle by its upper part, which makes it necessary to leave strips of material on the nozzle to leave room for the connectors of the flaps, which reduces the total surface of the passage opening of air when the flaps are in the open position and thus reduces the cooling capacity of the vehicle's engine.
Exposé de l’invention La présente invention a pour but de remédier aux problèmes cités précédemment et vise à améliorer les capacités de refroidissement du module de refroidissement. Disclosure of Invention The aim of the present invention is to remedy the problems cited above and aims to improve the cooling capacities of the cooling module.
L’invention a pour objet une buse de groupe moto-ventilateur pour un module de refroidissement comprenant une paroi munie d’au moins une ouverture de passage d’air pour le passage d’un flux d’air, ainsi qu’un volet monté pivotant par rapport à un axe de rotation pour contrôler le passage du flux d’air au travers de l’ouverture de passage d’air, le volet comprend une position ouverte qui permet le passage de l’air et une position fermée qui bloque le passage de l’air, caractérisée en ce que l’axe de rotation du volet est disposé selon une direction verticale. The subject of the invention is a motorized fan unit nozzle for a cooling module comprising a wall provided with at least one air passage opening for the passage of an air flow, as well as a shutter mounted pivoting relative to an axis of rotation to control the passage of the air flow through the air passage opening, the flap comprises an open position which allows the passage of air and a closed position which blocks the passage of air, characterized in that the axis of rotation of the shutter is arranged in a vertical direction.
Une ouverture verticale du volet permet une meilleure optimisation de l’ouverture de passage d’air sur la buse, l’espace disponible sur la buse étant principalement vertical. Cette disposition permet alors d’augmenter la surface d’ouverture ce qui permet un refroidissement plus important. A vertical opening of the shutter allows better optimization of the air passage opening on the nozzle, the space available on the nozzle being mainly vertical. This arrangement then makes it possible to increase the opening surface which allows greater cooling.
Selon l’un des aspects de l’invention, l’axe de rotation du volet est incliné d’un angle A par rapport à un plan principal PI dans lequel la buse s’étend. Une rotation du volet autour d’une direction verticale fait perdre l’effet de la gravité pour la fermeture du volet et abaisse l’effort nécessaire à l’ouverture du volet. Afin de remédier à ce problème tout en bénéficiant d’une surface d’ouverture optimisée, la disposition de l’axe de rotation dans un plan incliné par rapport à la buse permet par l’effort de la gravité sans l’ajout de moyens additionnels pour permettre la fermeture du volet. La position fermée du volet étant une position du volet au repos, en l’absence d’un flux d’air suffisamment important pour le faire tourner. According to one of the aspects of the invention, the axis of rotation of the flap is inclined at an angle A with respect to a main plane PI in which the nozzle extends. Rotating the shutter around a vertical direction loses the effect of gravity for closing the shutter and lowers the effort required to open the shutter. In order to remedy this problem while benefiting from an optimized opening surface, the arrangement of the axis of rotation in an inclined plane with respect to the nozzle allows by the force of gravity without the addition of additional means to allow the shutter to close. The closed position of the flap being a position of the flap at rest, in the absence of a sufficiently large flow of air to make it turn.
Selon l’un des aspects de l’invention, l’angle A de l’axe de rotation du volet est supérieur ou égale à 10° par rapport au plan principal PI dans lequel la buse s’étend. According to one of the aspects of the invention, the angle A of the axis of rotation of the flap is greater than or equal to 10° relative to the main plane PI in which the nozzle extends.
Selon l’un des aspects de l’invention, le volet est d’une hauteur au moins supérieure à la moitié de la hauteur de la buse. According to one of the aspects of the invention, the flap is of a height at least greater than half the height of the nozzle.
Selon l’un des aspects de l’invention, la buse comprend une ouverture d’hélice destinée à l’agencement d’une hélice et l’axe de rotation du volet est positionné d’un côté opposé à l’ouverture d’hélice afin qu’une partie libre du volet soit positionnée du côté de l’ouverture d’hélice pour que le flux d’air passant par l’ouverture de passage d’air du volet converge avec le flux d’air pulsé à travers l’ouverture d’hélice lorsque le volet est dans une position intermédiaire entre les positions de fermeture et d’ouverture. According to one of the aspects of the invention, the nozzle comprises a helix opening intended for the arrangement of a helix and the axis of rotation of the flap is positioned on a side opposite the helix opening so that a free part of the flap is positioned on the side of the propeller opening so that the air flow passing through the air passage opening of the flap converges with the air flow pulsating through the helix opening when the flap is in an intermediate position between the closed and open positions.
Selon l’un des aspects de l’invention, l’axe de rotation est formé depuis des bords inférieur et supérieur du volet par des prolongements pivotant dans des moyens d’articulation positionnés de part et d’autre de l’ouverture de passage d’air. Selon l’un des aspects de l’invention, au moins un des prolongements du volet comprend une butée de rotation afin de délimiter la position d’ouverture du volet qui correspond à une ouverture maximale du volet et destiné à s’appuyer sur une surface d’appui de la buse. According to one of the aspects of the invention, the axis of rotation is formed from the lower and upper edges of the flap by extensions pivoting in articulation means positioned on either side of the passage opening of 'air. According to one of the aspects of the invention, at least one of the extensions of the flap comprises a rotation stop in order to delimit the opening position of the flap which corresponds to a maximum opening of the flap and intended to rest on a surface nozzle support.
Selon l’un des aspects de l’invention, la butée de rotation s’étend radialement à l’axe de rotation du volet. According to one of the aspects of the invention, the rotation stop extends radially to the axis of rotation of the flap.
Selon l’un des aspects de l’invention, la butée de rotation s’étend de part et d’autre de l’axe de rotation du volet symétriquement à un plan principal P2 dans lequel s’étend le volet. According to one of the aspects of the invention, the rotation stop extends on either side of the axis of rotation of the flap symmetrically to a main plane P2 in which the flap extends.
Permet d’obtenir un volet symétrique qui peut être disposé d’un côté ou de l’autre de la buse sans besoin de prévoir un nouveau volet dédié à l’autre côté. Provides a symmetrical flap that can be placed on either side of the nozzle without the need for a new dedicated flap on the other side.
Selon l’un des aspects de l’invention, le volet comprend au moins une nervure destinée à faire poids afin d’optimiser la fermeture du volet. According to one of the aspects of the invention, the shutter comprises at least one rib intended to act as weight in order to optimize the closing of the shutter.
Selon l’un des aspects de l’invention, l’au moins une nervure est positionnée dans une partie basse du volet. L’avantage d’un positionnement dans la partie basse du volet est d’augmenter un effet de levier pour faciliter la fermeture du volet, la partie basse étant plus éloignée du plan principal PI de la buse. According to one of the aspects of the invention, the at least one rib is positioned in a lower part of the shutter. The advantage of positioning in the lower part of the flap is to increase a leverage effect to facilitate the closing of the flap, the lower part being further from the main plane PI of the nozzle.
Selon l’un des aspects de l’invention, l’au moins une nervure est disposée sur une face avant du volet, face depuis laquelle le flux d’air arrive. En étant disposée sur la face avant du volet, la nervure permet en plus de sa fonction de poids pour la bonne fermeture du volet en position fermée d'accroître la prise d’air pour faciliter l’ouverture du volet lorsque le flux d’air exerce une pression suffisante sur la face avant. According to one of the aspects of the invention, the at least one rib is arranged on a front face of the flap, face from which the air flow arrives. By being arranged on the front face of the shutter, the rib allows, in addition to its weight function for the proper closing of the shutter in the closed position, to increase the air intake to facilitate the opening of the shutter when the air flow exerts sufficient pressure on the front face.
Selon l’un des aspects de l’invention, la nervure fait saillie depuis la face avant du volet avec une inclinaison vers le bas du volet. Ceci a pour avantage d’optimiser la prise d’air de la nervure et de faciliter ainsi l’ouverture du volet par l’action du flux d’air. According to one of the aspects of the invention, the rib protrudes from the front face of the shutter with a downward inclination of the shutter. This has the advantage of optimizing the air intake of the rib and thus facilitating the opening of the shutter by the action of the air flow.
Selon l’un des aspects de l’invention, la nervure fait saillie depuis la face avant du volet et perpendiculairement à la face avant. According to one of the aspects of the invention, the rib protrudes from the front face of the shutter and perpendicular to the front face.
Brève description des dessins Brief description of the drawings
D'autres caractéristiques, détails et avantages de l'invention ressortiront plus clairement à la lecture de la description donnée ci-après à titre indicatif en relation avec des dessins dans lesquels : Other characteristics, details and advantages of the invention will emerge more clearly on reading the description given below by way of indication in relation to the drawings in which:
[Fig 1] est une vue schématique en perspective de la buse selon l’invention avec la face avant du volet ; [Fig 1] is a schematic perspective view of the nozzle according to the invention with the front face of the flap;
[Fig 2] est une vue schématique en perspective agrandie du volet de la buse de la figure 1 ; [Fig 3] est une vue schématique en perspective d’une partie supérieure du volet des figures précédentes ; [Fig 4] est une vue schématique transversale d’une partie basse du volet des figures 1 et 2.[Fig 2] is a schematic enlarged perspective view of the flap of the nozzle of Figure 1; [Fig 3] is a schematic perspective view of an upper part of the shutter of the previous figures; [Fig 4] is a schematic cross-sectional view of a lower part of the shutter of Figures 1 and 2.
Il faut tout d’abord noter que si les figures exposent l’invention de manière détaillée pour sa mise en œuvre, ces figures peuvent bien entendu servir à mieux définir l’invention le cas échéant. Il est également à noter que ces figures n’exposent que quelques exemples de réalisation de l’invention. It should first be noted that if the figures expose the invention in detail for its implementation, these figures can of course be used to better define the invention if necessary. It should also be noted that these figures show only a few embodiments of the invention.
Dans la description qui va suivre, une direction d’un axe longitudinal L, une direction d’un axe transversal T, et une direction d’un axe vertical V sont représentées par un trièdre (L, T, V) sur les figures. On définit un plan horizontal comme étant un plan perpendiculaire à l’axe vertical V, un plan longitudinal comme étant un plan perpendiculaire à l’axe transversal T, et un plan transversal comme étant un plan perpendiculaire à l’axe longitudinal L. In the following description, a direction of a longitudinal axis L, a direction of a transverse axis T, and a direction of a vertical axis V are represented by a trihedron (L, T, V) in the figures. We define a horizontal plane as being a plane perpendicular to the vertical axis V, a longitudinal plane as being a plane perpendicular to the transverse axis T, and a transverse plane as being a plane perpendicular to the longitudinal axis L.
Description détaillée detailed description
La figure 1 illustre schématiquement en perspective une buse 100 de groupe moto-ventilateur pour un module de refroidissement selon l’invention. Figure 1 schematically illustrates in perspective a motorized fan nozzle 100 for a cooling module according to the invention.
Un module de refroidissement comprend généralement au moins un échangeur de chaleur, tel un radiateur de moteur et/ ou un condenseur, d'un système de climatisation, pour refroidir un fluide par circulation d'air à travers le module. Le groupe moto-ventilateur a pour fonction d'activer une circulation d'un flux d'air dans l'échangeur de chaleur lorsque le véhicule est à l'arrêt ou se déplace à faible vitesse. A cooling module generally comprises at least one heat exchanger, such as an engine radiator and/or a condenser, of an air conditioning system, to cool a fluid by circulating air through the module. The motor-fan unit has the function of activating a circulation of an air flow in the heat exchanger when the vehicle is stationary or moving at low speed.
La buse 100 a une virole interne 101, destinée à supporter l'hélice et le moteur du groupe moto-ventilateur, non illustrés dans les figures, et une virole externe 102 configurée pour guider l'air, les deux viroles 101, 102 étant maintenues l'une à l'autre par des bras 103, telles des pales de stator. Entre les deux viroles 101, 102, une ouverture d’hélice 104 permet le passage de l'air activé par l'hélice. La buse 100 présente une paroi 105 étendue autour de la virole externe 102, et qui possède ici au moins une bride de fixation 106 pour l'assemblage de la buse 100 et donc du groupe moto-ventilateur à l'un des échangeurs du module de refroidissement. Afin d'augmenter le flux d'air dans le module de refroidissement, la buse 100 de groupe moto- ventilateur selon l’invention comprend une buse 100 de groupe moto-ventilateur pour un module de refroidissement comprenant une paroi 105 munie d’au moins une ouverture 1 de passage d’air pour le passage d’un flux d’air, ainsi qu’un volet 2 monté pivotant par rapport à un axe de rotation 3 pour contrôler le passage du flux d’air au travers de l’ouverture 1 de passage d’air, le volet 2 comprend une position ouverte qui permet le passage de l’air et une position fermée qui bloque le passage de l’air, caractérisée en ce que l’axe de rotation 3 du volet 2 est disposé selon une direction verticale V. La position ouverte du volet 2 permet le passage de l’air à travers la buse 100 lorsque le véhicule est en mouvement et la position fermée qui bloque le passage de l’air lorsque le véhicule est à l’arrêt ou se déplace à faible vitesse. The nozzle 100 has an internal shroud 101, intended to support the propeller and the motor of the motorized fan unit, not illustrated in the figures, and an outer shroud 102 configured to guide the air, the two shrouds 101, 102 being maintained to each other by arms 103, such as stator blades. Between the two shells 101, 102, a propeller opening 104 allows the passage of air activated by the propeller. The nozzle 100 has a wall 105 extended around the outer shroud 102, and which here has at least one fixing flange 106 for the assembly of the nozzle 100 and therefore of the motorized fan unit to one of the exchangers of the module of cooling. In order to increase the flow of air in the cooling module, the motor-fan unit nozzle 100 according to the invention comprises a motor-fan unit nozzle 100 for a cooling module comprising a wall 105 provided with at least an air passage opening 1 for the passage of an air flow, as well as a flap 2 mounted pivoting with respect to an axis of rotation 3 to control the passage of the air flow through the opening 1 of air passage, the flap 2 comprises an open position which allows the passage of air and a closed position which blocks the passage of air, characterized in that the axis of rotation 3 of the flap 2 is disposed in a vertical direction V. The open position of flap 2 allows the passage of air through the nozzle 100 when the vehicle is moving and the closed position which blocks the passage of air when the vehicle is stationary or moving at low speed. .
Une ouverture verticale du volet 2 permet une meilleure optimisation de l’ouverture 1 de passage d’air sur la buse 100, l’espace disponible sur la buse 100 étant principalement vertical. Cette disposition permet alors d’augmenter la surface d’ouverture ce qui permet un refroidissement plus important. A vertical opening of the shutter 2 allows a better optimization of the opening 1 of air passage on the nozzle 100, the space available on the nozzle 100 being mainly vertical. This arrangement then makes it possible to increase the opening surface which allows greater cooling.
Comme illustré à la figure 2, l’axe de rotation 3 du volet 2 est incliné d’un angle A par rapport à un plan principal PI dans lequel la buse 100 s’étend. Une rotation du volet 2 autour d’une direction verticale V fait perdre l’effet de la gravité pour la fermeture du volet 2 et abaisse l’effort nécessaire à l’ouverture du volet 2. Afin de remédier à ce problème tout en bénéficiant d’une surface d’ouverture optimisée, la disposition de l’axe de rotation 3 dans un plan incliné par rapport à la buse 100 permet par l’effort de la gravité sans l’ajout de moyens additionnels pour permettre la fermeture du volet 2. La position fermée du volet 2 étant une position du volet 2 au repos, en l’absence d’un flux d’air suffisamment important pour le faire tourner. L’angle A de l’axe de rotation 3 du volet 2 est supérieur ou égale à 10° par rapport au plan principal PI dans lequel la buse 100 s’étend. As illustrated in Figure 2, the axis of rotation 3 of the flap 2 is inclined at an angle A relative to a main plane PI in which the nozzle 100 extends. A rotation of the flap 2 around a vertical direction V loses the effect of gravity for closing the flap 2 and lowers the force required to open the flap 2. In order to remedy this problem while benefiting from an optimized opening surface, the arrangement of the axis of rotation 3 in an inclined plane with respect to the nozzle 100 allows by the force of gravity without the addition of additional means to allow the shutter 2 to close. The closed position of the flap 2 being a position of the flap 2 at rest, in the absence of a sufficiently large flow of air to cause it to rotate. The angle A of the axis of rotation 3 of the flap 2 is greater than or equal to 10° relative to the main plane PI in which the nozzle 100 extends.
Le volet 2 est d’une hauteur au moins supérieure à la moitié de la hauteur de la buse 100.The flap 2 is of a height at least greater than half the height of the nozzle 100.
La buse 100 comprend une ouverture d’hélice 104 destinée à l’agencement d’une hélice et l’axe de rotation 3 du volet 2 est positionné d’un côté opposé 4 à l’ouverture d’hélice 104 afin qu’une partie libre 5 du volet 2 soit positionnée du côté de l’ouverture d’hélice 104 pour que le flux d’air passant par l’ouverture 1 de passage d’air du volet 2 converge avec le flux d’air pulsé à travers l’ouverture d’hélice 104 lorsque le volet 2 est dans une position intermédiaire entre les positions de fermeture et d’ouverture. The nozzle 100 comprises a helix opening 104 intended for the arrangement of a helix and the axis of rotation 3 of the flap 2 is positioned on an opposite side 4 to the helix opening 104 so that a part free 5 of the shutter 2 is positioned on the side of the propeller opening 104 so that the air flow passing through the air passage opening 1 of the shutter 2 converges with the flow of air pulsed through the helix opening 104 when the flap 2 is in an intermediate position between the closed and open positions.
A la figure 3, on peut voir que l’axe de rotation 3 est formé depuis des bords inférieur 6 et supérieur 7 du volet 2 par des prolongements 8 pivotant dans des moyens d’articulation 9 positionnés de part et d’autre de l’ouverture 1 de passage d’air. In Figure 3, it can be seen that the axis of rotation 3 is formed from the lower 6 and upper 7 edges of the flap 2 by extensions 8 pivoting in articulation means 9 positioned on either side of the opening 1 for air passage.
Comme il est particulièrement visible aux figures 3 et 4, au moins un des prolongements 8 du volet 2 comprend une butée 10 de rotation afin de délimiter la position d’ouverture du volet 2 qui correspond à une ouverture maximale du volet 2 et destiné à s’appuyer sur une surface d’appui de la buse 100. As is particularly visible in Figures 3 and 4, at least one of the extensions 8 of the shutter 2 comprises a rotation stop 10 in order to delimit the opening position of the shutter 2 which corresponds to a maximum opening of the shutter 2 and intended to s press on a support surface of the nozzle 100.
La butée 10 de rotation s’étend radialement à l’axe de rotation 3 du volet 2. The rotation stop 10 extends radially to the axis of rotation 3 of the flap 2.
La butée 10 de rotation s’étend de part et d’autre de l’axe de rotation 3 du volet 2 symétriquement à un plan principal P2 dans lequel s’étend le volet 2. Permet d’obtenir un volet 2 symétrique qui peut être disposé d’un côté ou de l’autre de la buse 100 sans besoin de prévoir un nouveau volet 2 dédié à l’autre côté. The rotation stop 10 extends on either side of the axis of rotation 3 of the flap 2 symmetrically to a main plane P2 in which the flap 2 extends. symmetrical flap 2 which can be arranged on one side or the other of the nozzle 100 without the need to provide a new flap 2 dedicated to the other side.
Le volet 2 comprend au moins une nervure 11 destinée à faire poids afin d’optimiser la fermeture du volet 2. L’au moins une nervure 11 est positionnée dans une partie basse 12 du volet 2 tel qu’illustré principalement à la figure 4. L’avantage d’un positionnement dans la partie basse 12 du volet 2 est d’augmenter un effet de levier pour faciliter la fermeture du volet 2, la partie basse 12 étant plus éloignée du plan principal PI de la buse 100. The flap 2 comprises at least one rib 11 intended to act as a weight in order to optimize the closing of the flap 2. The at least one rib 11 is positioned in a lower part 12 of the flap 2 as illustrated mainly in figure 4. The advantage of positioning in the lower part 12 of the shutter 2 is to increase a leverage effect to facilitate the closing of the shutter 2, the lower part 12 being further from the main plane PI of the nozzle 100.
L’au moins une nervure 11 est disposée sur une face avant 13 du volet 2, face depuis laquelle le flux d’air arrive. En étant disposée sur la face avant 13 du volet 2, la nervure 11 permet en plus de sa fonction de poids pour la bonne fermeture du volet 2 en position fermée d'accroître la prise d’air pour faciliter l’ouverture du volet 2 lorsque le flux d’air exerce une pression suffisante sur la face avant 13. The at least one rib 11 is arranged on a front face 13 of the flap 2, face from which the air flow arrives. By being placed on the front face 13 of the flap 2, the rib 11 allows in addition to its weight function for the good closure of the flap 2 in the closed position to increase the air intake to facilitate the opening of the flap 2 when the air flow exerts sufficient pressure on the front face 13.
La nervure 11 fait saillie depuis la face avant 13 du volet 2 avec une inclinaison vers le bas du volet 2. Ceci a pour avantage d’optimiser la prise d’air de la nervure 11 et de faciliter ainsi l’ouverture du volet 2 par l’action du flux d’air. The rib 11 protrudes from the front face 13 of the flap 2 with a downward inclination of the flap 2. This has the advantage of optimizing the air intake of the rib 11 and thus of facilitating the opening of the flap 2 by the action of the air flow.
Selon une variante non illustrée, la nervure 11 fait saillie depuis la face avant 13 du volet 2 et perpendiculairement à la face avant 13. According to a variant not shown, the rib 11 protrudes from the front face 13 of the flap 2 and perpendicular to the front face 13.

Claims

REVENDICATIONS
1. Buse (100) de groupe moto-ventilateur pour un module de refroidissement comprenant une paroi (105) munie d’au moins une ouverture (1) de passage d’air pour le passage d’un flux d’air, ainsi qu’un volet (2) monté pivotant par rapport à un axe de rotation (3) pour contrôler le passage du flux d’air au travers de l’ouverture (1) de passage d’air, le volet (2) comprend une position ouverte qui permet le passage de l’air et une position fermée qui bloque le passage de l’air, caractérisée en ce que l’axe de rotation (3) du volet (2) est disposé selon une direction verticale (V). 1. Motor-fan unit nozzle (100) for a cooling module comprising a wall (105) provided with at least one air passage opening (1) for the passage of an air flow, as well as 'a flap (2) pivotally mounted relative to an axis of rotation (3) to control the passage of the air flow through the air passage opening (1), the flap (2) comprises a position open which allows the passage of air and a closed position which blocks the passage of air, characterized in that the axis of rotation (3) of the flap (2) is arranged in a vertical direction (V).
2. Buse (100) de groupe moto-ventilateur selon la revendication précédente, dans laquelle l’axe de rotation (3) du volet (2) est incliné d’un angle (A) par rapport à un plan principal (PI) dans lequel la buse (100) s’étend. 2. Motor fan nozzle (100) according to the preceding claim, in which the axis of rotation (3) of the flap (2) is inclined at an angle (A) relative to a main plane (PI) in which the nozzle (100) extends.
3. Buse (100) de groupe moto-ventilateur selon la revendication précédente, dans laquelle l’angle (A) de l’axe de rotation (3) du volet (2) est supérieur ou égale à 10° par rapport au plan principal (PI) dans lequel la buse (100) s’étend. 3. Motor fan nozzle (100) according to the preceding claim, in which the angle (A) of the axis of rotation (3) of the flap (2) is greater than or equal to 10° relative to the main plane (PI) in which the nozzle (100) extends.
4. Buse (100) de groupe moto-ventilateur selon l’une quelconque des revendications précédentes, dans laquelle la buse (100) comprend une ouverture d’hélice (104) destinée à l’agencement d’une hélice et l’axe de rotation (3) du volet (2) est positionné d’un côté opposé (4) à l’ouverture d’hélice (104) afin qu’une partie libre (5) du volet (2) soit positionnée du côté de l’ouverture d’hélice (104) pour que le flux d’air passant par l’ouverture (1) de passage d’air du volet (2) converge avec le flux d’air pulsé à travers l’ouverture d’hélice (104) lorsque le volet (2) est dans une position intermédiaire entre les positions de fermeture et d’ouverture. 4. Fan motor nozzle (100) according to any one of the preceding claims, in which the nozzle (100) comprises a propeller opening (104) for the arrangement of a propeller and the axis of rotation (3) of the shutter (2) is positioned on a side opposite (4) to the helix opening (104) so that a free part (5) of the shutter (2) is positioned on the side of the fan opening (104) so that the airflow passing through the air passage opening (1) of the flap (2) converges with the airflow pulsating through the fan opening (104 ) when the flap (2) is in an intermediate position between the closed and open positions.
5. Buse (100) de groupe moto-ventilateur selon l’une quelconque des revendications précédentes, dans laquelle l’axe de rotation (3) est formé depuis des bords inférieur (6) et supérieur (7) du volet (2) par des prolongements (8) pivotant dans des moyens d’articulation (9) positionnés de part et d’autre de l’ouverture (1) de passage d’air.5. Motor fan nozzle (100) according to any one of the preceding claims, in which the axis of rotation (3) is formed from lower (6) and upper (7) edges of the flap (2) by extensions (8) pivoting in hinge means (9) positioned on either side of the air passage opening (1).
6. Buse (100) de groupe moto-ventilateur selon la revendication précédente, dans laquelle au moins un des prolongements (8) du volet (2) comprend une butée (10) de rotation afin de délimiter la position d’ouverture du volet (2) qui correspond à une ouverture maximale du volet (2) et destiné à s’appuyer sur une surface d’appui de la buse (100). 6. Nozzle (100) of the motorized fan unit according to the preceding claim, in which at least one of the extensions (8) of the flap (2) comprises a stop (10) for rotation in order to delimit the opening position of the flap ( 2) which corresponds to a maximum opening of the flap (2) and intended to rest on a bearing surface of the nozzle (100).
7. Buse (100) de groupe moto-ventilateur selon l’une quelconque des revendications précédentes, dans laquelle le volet (2) comprend au moins une nervure (11) destinée à faire poids afin d’optimiser la fermeture du volet (2). Buse (100) de groupe moto-ventilateur selon la revendication précédente, dans laquelle l’au moins une nervure (11) est positionnée dans une partie basse (12) du volet (2). Buse (100) de groupe moto-ventilateur selon la revendication 7 ou 8, dans laquelle l’au moins une nervure (11) est disposée sur une face avant (13) du volet (2), face depuis laquelle le flux d’air arrive. Buse (100) de groupe moto-ventilateur selon la revendication précédente, dans laquelle la nervure (11) fait saillie depuis la face avant (13) du volet (2) avec une inclinaison vers le bas du volet (2) . 7. Motor fan nozzle (100) according to any one of the preceding claims, in which the flap (2) comprises at least one rib (11) intended to act as weight in order to optimize the closing of the flap (2). . Nozzle (100) for a motorized fan unit according to the preceding claim, in which the at least one rib (11) is positioned in a lower part (12) of the flap (2). Nozzle (100) for a motorized fan unit according to claim 7 or 8, in which the at least one rib (11) is arranged on a front face (13) of the flap (2), face from which the air flow arrived. Motor fan nozzle (100) according to the preceding claim, in which the rib (11) projects from the front face (13) of the flap (2) with a downward inclination of the flap (2).
PCT/EP2022/083730 2022-01-17 2022-11-29 Nozzle of a fan-motor unit WO2023134915A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2200379A FR3131950B1 (en) 2022-01-17 2022-01-17 Motor-fan unit nozzle
FRFR2200379 2022-01-17

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WO2023134915A1 true WO2023134915A1 (en) 2023-07-20

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2157299A5 (en) * 1971-10-23 1973-06-01 Nissan Motor
US3854459A (en) * 1973-12-28 1974-12-17 Mack Trucks Fan shroud for an engine cooling system
FR2881087A1 (en) * 2005-01-21 2006-07-28 Faurecia Bloc Avant NOZZLE FOR PIPING AN AIR FLOW TO A HEAT EXCHANGER OF A MOTOR VEHICLE, AND VEHICLE THEREFOR
DE102007036475A1 (en) * 2007-08-01 2009-02-05 Behr Gmbh & Co. Kg cooling module
DE102009025206A1 (en) * 2009-06-17 2010-12-30 Aksys Gmbh Engine compartment separation section for commercial vehicle, has air circulation separator arranged above cooling package that is provided with cover including rotational axis aligned at specific angle with respect to perpendicular line
EP2492127A1 (en) * 2011-02-22 2012-08-29 Valeo Systèmes Thermiques Frame for cooling module of a vehicle engine
JP6932832B1 (en) * 2020-11-19 2021-09-08 マレリ株式会社 Flap door

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2157299A5 (en) * 1971-10-23 1973-06-01 Nissan Motor
US3854459A (en) * 1973-12-28 1974-12-17 Mack Trucks Fan shroud for an engine cooling system
FR2881087A1 (en) * 2005-01-21 2006-07-28 Faurecia Bloc Avant NOZZLE FOR PIPING AN AIR FLOW TO A HEAT EXCHANGER OF A MOTOR VEHICLE, AND VEHICLE THEREFOR
DE102007036475A1 (en) * 2007-08-01 2009-02-05 Behr Gmbh & Co. Kg cooling module
DE102009025206A1 (en) * 2009-06-17 2010-12-30 Aksys Gmbh Engine compartment separation section for commercial vehicle, has air circulation separator arranged above cooling package that is provided with cover including rotational axis aligned at specific angle with respect to perpendicular line
EP2492127A1 (en) * 2011-02-22 2012-08-29 Valeo Systèmes Thermiques Frame for cooling module of a vehicle engine
JP6932832B1 (en) * 2020-11-19 2021-09-08 マレリ株式会社 Flap door

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FR3131950A1 (en) 2023-07-21

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