EP3885582B1 - Engine cooling fan with dynamic imbalance compensation - Google Patents
Engine cooling fan with dynamic imbalance compensation Download PDFInfo
- Publication number
- EP3885582B1 EP3885582B1 EP21168497.2A EP21168497A EP3885582B1 EP 3885582 B1 EP3885582 B1 EP 3885582B1 EP 21168497 A EP21168497 A EP 21168497A EP 3885582 B1 EP3885582 B1 EP 3885582B1
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- European Patent Office
- Prior art keywords
- mounting
- fan device
- balancing
- engine fan
- contours
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- 239000000463 material Substances 0.000 claims description 6
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/662—Balancing of rotors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
Definitions
- the invention relates to an engine cooling fan of a vehicle which is provided with a dynamic unbalance compensation device.
- Inertia forces or static and dynamic imbalances are generally caused by inhomogeneous mass distributions of the rotating assemblies, such as the rotor or armature of a motor and the fan, as well as by shape and position tolerances to the rotation axis and main axis of inertia of the drive.
- the shape and position tolerances mean that the axis of rotation and the main axis of inertia no longer coincide.
- this leads, for example, to a static unbalance.
- the axis of rotation is tilted towards the main axis of inertia, a centrifugal moment is generated, the effects of which are equivalent to a moment unbalance or dynamic unbalance.
- Dynamic imbalance in engine cooling fans usually causes mechanical vibrations.
- the vibrations generated can extend into the passenger compartment and, for example, cause the steering wheel to flutter and cause annoying vibration noises to occur.
- a motor blower device is now provided with improved compensation for the dynamic unbalance.
- the engine blower device according to the invention for a vehicle has the features of independent claim 1.
- Such a motor blower device has the advantage that there is a simple and automatable way to balance the dynamic unbalance and to prevent the disadvantages resulting from the unbalance.
- two or more balancing elements to compensate for a dynamic unbalance are fastened in two or more receiving contours or clamped and/or glued from the outside.
- the balancing elements are dimensioned or have a predetermined weight and are positioned in the receiving contours in such a way that a dynamic imbalance can essentially be prevented.
- two receiving contours are provided, each of which only has one plane of rotation.
- a first example of a motor fan device 10 is shown, in which a dynamic imbalance is compensated.
- the motor blower device 10 has a fan device 12, which contains one or more blade elements 14, which are delimited on the outside by a fan wheel 16 and on the inside by a hub region 18 of the Fan device 12 is formed, for example. Furthermore, the motor blower device 10 has a motor 20 for driving the fan device 12. The fan device 12 can be coupled to the motor 20, for example via a driver device 22.
- the motor blower device 10 has a receiving contour 24 which has at least two, three or more levels 26, which are arranged at different heights.
- One, two, three or more balancing elements 28 can be provided in the receiving contour 24.
- the balancing elements 28 can be suitably positioned in the different levels 26 of the receiving contour 24 in order to counteract a dynamic imbalance.
- the receiving contour 24 forms, for example, a circumferential groove 30 which has a first level 26 and which is further provided with additional depressions or receptacles which form the second level 26, as in the Fig. 1 and 2 is shown.
- the receiving contour 24 or groove 30 is, for example, arranged concentrically and changes into two planes of rotation 26 through the additional depressions 32.
- the receiving contour 24 or groove 30 can, for example, only be partially circumferential.
- a sectional view of the engine blower device 10 is shown.
- the receiving contour 24 is shown in the form of a groove 30 and its two planes of rotation A and B.
- the receiving contour 24 is formed, for example, in the hub region 18 of the motor blower device 10.
- the plane of rotation A is arranged higher than the plane of rotation B.
- two balancing elements 28 are provided in the form of balls, one ball being arranged in the plane of rotation A and one ball in the plane of rotation B.
- the balancing elements 28 can be fixed from the outside, for example by gluing and / or a corresponding preload in the receiving contour 24 or groove 30 can be attached. Furthermore, the balancing elements 28 are made of the same material or have the same material composition, as well as the same weight and the same shape.
- a second example of the engine blower device 10 is shown.
- the second example differs from the first example in the Fig. 1-3 in that, for example, two or more balancing elements 28 are arranged in the same plane of rotation 26, here for example the plane of rotation A, while one, two or more balancing elements 28, here for example a third balancing element 28, are arranged in the other plane of rotation 26, here for example the Rotation plane B.
- the material composition or the weight of at least two or more of the balancing elements 28 is different.
- a perspective view of a motor blower device 10 is shown according to a further development.
- the receiving contour 24, here in the form of a groove 30, is designed circumferentially, with one, two, three or more ribs 36 being provided, which interrupt the course of the groove 30 or the receiving contour 24.
- a receiving contour 24 can be divided into several chambers 38, which can accommodate one, two or more balancing elements 28.
- the chambers 38 form one, two or more levels 26.
- the four chambers 38 each have, for example, the two planes of rotation A and B.
- the four chambers 38 can have the same number or different numbers of depressions 32 to accommodate balancing elements 28.
- the motor blower device 10 or its fan device 12 also has a receiving contour 24 in the form of a groove 30, which is arranged in the hub region 18 of the motor blower device 10.
- the groove 30 is only partially circumferential.
- the receiving contour 24 can have, for example, one, two, three or more partially circumferential grooves 30. These can be arranged, for example, in a ring, for example a concentric ring, as in Fig. 6 is shown.
- the partially circumferential grooves 30 can also be positioned on rings arranged one behind the other (not shown).
- the partially circumferential grooves form 30, as shown in Fig. 6 are shown, different chambers 38 with one, two or more levels 26.
- the three chambers 38 can, for example accommodate a different number of balancing elements 28.
- a chamber 38 can only accommodate one balancing element 28 in a plane of rotation B.
- the other two chambers 38 can accommodate different numbers of balancing elements 28, of which in the planes of rotation A and B.
- Fig. 7 shows a partial sectional view of an engine blower device 10 according to a third example.
- the motor blower device 10 or its fan device 12 has at least two receiving contours 24, which are arranged side by side partially or completely circumferentially, here in the hub area 18 of the motor blower device 10 or its fan device 12.
- the receiving contours 24 form, for example, two grooves 30 which are in the form of two arranged in concentric circles.
- Each of the receiving contours 24 or grooves 30 has at least one or more planes 26 or planes of rotation 26.
- the first, inner groove 30 forms, for example, the plane of rotation A and the second, outer groove 30 forms the plane of rotation B.
- each of the receiving contours 24 can also switch between at least two, three or more planes 26, like the previous embodiments.
- One, two, three or more balancing elements 28 can be provided in one or both receiving contours 24.
- Fig. 8 further shows a partial sectional view of a motor blower device 10 according to an embodiment according to the invention.
- the embodiment is essentially based on the third example.
- at least one, two or more receiving contours 24 are provided connected to the hub area 18 or the inner end 40 of the wing elements 14 of the fan device 12.
- the receiving contours 24 are aligned with the top 42 and the bottom 44 of the motor fan device 10.
- This receiving contour 24 or receiving contours 24 can also form at least one further plane 26, for example a plane of rotation C, in which at least one, two, three or more balancing elements 28 can be received.
- the plane of rotation C can, for example, be higher or lower than the planes of rotation A and B.
- a partial sectional view of a motor blower device 10 according to a further development or embodiment is shown.
- the further training is based on the third example Fig. 7 .
- This receiving contour 24 or receiving contours 24 can form at least one further plane 26, for example a plane of rotation C, in which at least one, two, three or more balancing elements 28 can be received.
- the plane of rotation C can, for example, be higher or lower than the planes of rotation A and B.
- the receiving contour 24 is designed, for example, in the form of a groove 30, for example a partially or completely circumferential groove 30.
- Fig. 10 now shows a partial sectional view of a motor blower device 10 with further developments according to the invention.
- the further development is based on the third example, the further development additionally having at least one, two or more receiving contours 24 on the inside 48 of the fan wheel 16 in addition to at least one receiving contour 24 on the outside 46 of the fan wheel 16.
- the receiving contours 28 are aligned with the top 42 or the bottom 44 of the motor blower device 10 or the fan device 12.
- the respective receiving contour 24 can have at least one, two or more planes 26 or rotation planes 26 for receiving one, two or more balancing elements 28.
- a receiving contour 24 is provided on the inside 48 of the fan wheel 16, the receiving contour 24, for example in the form of a groove 30, being arranged on the underside 44 of the fan device 12 and forming a plane of rotation D, which is located, for example, at the lowest.
- at least one or more balancing elements 28 are arranged in the groove 30.
- Fig. 11 shows a section of a perspective view of a motor blower device 10 with further developments according to the invention.
- the respective receiving contour 24 is designed in the form of an opening 50, for example a circular opening 50.
- a balancing element 28 in the form of a rivet element 52 is fastened in the opening 50. More precisely, the balancing element 28, here for example the rivet element 52, is surrounded from the outside by the fan geometry.
- the respective opening 50 can have any shape as a receiving contour 24 or fastening contour, that is, for example, circular, oval and/or angular.
- the receiving contours 24 or openings 50 are formed in at least one or more of the wing elements 14 of the fan device 12.
- the receiving contours 24 can, for example be arranged on the same radius around the axis of rotation 34 of the motor blower device 10 or the fan device 12 but at different heights, as in Fig. 11 is indicated to form different levels 26.
- the receiving contours 24 could also be arranged at different radii around the axis of rotation 34 and furthermore also at different heights and/or at the same height.
- pin elements 56 or other arbitrarily shaped balancing elements 28 can also be provided, which can be fastened in a respective opening 50.
- At least one, two or more receiving contours 24 in the form of openings 50 can be provided in at least one, two or more wing elements 14, which can be equipped with balancing elements 28.
- a groove 30 has, for example, two planes of rotation 26, in which balancing elements 28, for example in the form of balls 58, can be accommodated.
- Fig. 12 a section of a perspective view of a motor blower device 10 according to a fourth example is shown.
- the example is comparable to the first and second examples.
- One, two or more receiving contours 24 are provided, for example in the form of partially or completely circumferential grooves 30.
- the in Fig. 12 Groove 30 shown has, for example, two planes 26 or planes of rotation 26.
- the second, lower level 26 is designed in the form of several receptacles or depressions 32 in which balancing elements 28 can be accommodated.
- balancing elements 28 can, as in Fig. 12 and 13 is shown, on the one hand spherical balancing elements 58 are provided, which are clamped from the outside in the receptacle or the groove 30.
- a mushroom-shaped element 54 can also be provided as a balancing element 28, which is also clamped from the outside in order to be fastened in the receiving contour 24.
- the Mushroom-shaped element 58 is inserted, for example, with its shaft section into groove 30 and clamped by it from the outside.
- a cylinder element 56 can also be used as a balancing element 28, which is inserted into the groove 30 and clamped through the groove 30 from the outside.
- a cuboid element 60 or polygonal element can also be used as the balancing element 28 and inserted into the groove 30 and clamped there from the outside.
- an expansion spring element 62 can also be used as a balancing element 28, for example. This is inserted into the groove 30 and clamped there from the outside.
- a casting compound 64 can also be used as a balancing element 28, whereby the casting compound 64 can be surrounded all around by, for example, a receptacle in the groove 30.
- balancing elements 28 that can be clamped from the outside or circumferentially enclosed in the respective receiving contour 24 in the form of, for example, a groove 30 or an opening 50.
- the invention is not limited to these balancing elements.
- the balancing elements 28 listed are merely examples. What the balancing elements 28 have in common is that they are held or bordered from the outside at circumferential or at least two points by the special receiving contour 24 integrated in the fan device 12, for example by pre-tensioning and/or gluing. This applies to all embodiments and developments of the invention.
- the balancing elements 28 can be combined with one another in any way and, for example, have the same weight or a different weight, depending on the function and intended use.
- Fig. 14 further shows a sectional view of the motor fan device 10 according to the first example with a determination of a maximum unbalance compensation.
- a receiving contour 24 is provided in the hub region 18 of the fan device 12.
- two balancing elements 28 are provided in the form of balls 58, each having a diameter of 10mm and on opposite sides in the plane of rotation A or the plane of rotation B are arranged as in Fig. 14 is shown.
- the motor blower device 10 contains a special receiving contour 24 or receiving contours 24 integrated in the fan device 12.
- These receiving contours 24 each serve to fasten balancing masses 28 in different rotation planes 26, preferably perpendicular to the fan rotation axis 34.
- metallic or metal-containing balancing weights 28 attached.
- the metal content of the balancing weights 28 is, for example, 25 to 100% by weight.
- the balancing weights or balancing elements 28 alone generate a dynamic unbalance of > 400 gmm 2 when rotating around the fan rotation axis 34, as previously shown in the example of Fig. 14 was shown, which serves to reduce the overall dynamic imbalance of the fan.
- the balancing weight or the balancing element 28 is held or framed all around or at least at two points by means of this special receiving contour 24 from the outside, for example by pre-tensioning and/or gluing.
- the dynamic unbalance of engine cooling fans 10 can be balanced in a technically simple, automated manner for the first time.
- a method for automatically attaching balancing masses by pressing in or shooting in balls, for example, for static unbalance compensation can be adopted after adaptation for automated dynamic unbalance compensation.
- glue heavy, for example metal-containing, casting compounds into these contours 24 and thereby balance the dynamic unbalance of the blower 10.
- balancing elements 28 can be used that are the same in weight, material and/or shape, or at least two or more or all balancing elements 28 can differ in shape, material and/or weight.
- receiving contours 24 in the form of openings 50 can be provided not only on wing elements 14 of the fan wheel 16 but also, for example, on the fan wheel 16 itself and/or, for example, the hub region 18 of the fan device 12.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Die Erfindung betrifft ein Motorkühlungsgebläse eines Fahrzeugs, das mit einer dynamischen Unwuchtausgleichseinrichtung versehen ist.The invention relates to an engine cooling fan of a vehicle which is provided with a dynamic unbalance compensation device.
Massenkräfte bzw. statische und dynamische Unwuchten werden im Allgemeinen durch inhomogene Massenverteilungen der rotierenden Baugruppen, wie z.B. dem Rotor bzw. Anker eines Motors und dem Lüfter hervorgerufen, sowie durch Form- und Lagetoleranzen zur Rotationsachse und Hauptträgheitsachse des Antriebs. Die Form- und Lagetoleranzen bewirken hierbei, dass die Rotationsachse und Hauptträgheitsachse nicht mehr zusammenfallen. Bei einer Parallelverschiebung zwischen der Rotationsachse und der Hauptträgheitsachse eines Kühlungsgebläses mit an der Rotorwelle aufgenommenem Lüfterrad, führt dies beispielsweise zu einer statischen Unwucht. Ist die Rotationsachse dagegen zu der Hauptträgheitsachse gekippt, so wird ein Zentrifugalmoment erzeugt, welches in seinen Auswirkungen einer Momentenunwucht bzw. dynamischen Unwucht gleichkommt.Inertia forces or static and dynamic imbalances are generally caused by inhomogeneous mass distributions of the rotating assemblies, such as the rotor or armature of a motor and the fan, as well as by shape and position tolerances to the rotation axis and main axis of inertia of the drive. The shape and position tolerances mean that the axis of rotation and the main axis of inertia no longer coincide. In the case of a parallel displacement between the axis of rotation and the main axis of inertia of a cooling fan with a fan wheel mounted on the rotor shaft, this leads, for example, to a static unbalance. If, on the other hand, the axis of rotation is tilted towards the main axis of inertia, a centrifugal moment is generated, the effects of which are equivalent to a moment unbalance or dynamic unbalance.
Eine dynamische Unwucht bei Motorkühlungsgebläsen verursacht normalerweise mechanische Schwingungen. Die erzeugten Vibrationen können dabei bis in den Fahrgastraum hinein reichen und beispielsweise ein Lenkradflattern verursachen, sowie das Entstehen von störenden Vibrationsgeräuschen bewirken. Des Weiteren steht die Kraftwirkung, verursacht durch die dynamische Unwucht, im begründeten Verdacht, sporadisch einen rapiden Lagerverschleiß bei Motorkühlungsgebläsemotoren auszulösen.Dynamic imbalance in engine cooling fans usually causes mechanical vibrations. The vibrations generated can extend into the passenger compartment and, for example, cause the steering wheel to flutter and cause annoying vibration noises to occur. Furthermore, there is reasonable suspicion that the force effect caused by the dynamic imbalance may sporadically trigger rapid bearing wear in engine cooling fan motors.
Bei heutigen Motorkühlungsgebläsen erfolgt in der Regel ein Ausgleich der statischen Unwucht, um zulässige Grenzwerte einzuhalten. Der Ausgleich der dynamischen Unwucht gestaltet sich bei den oft sehr flach bauenden Lüftern jedoch als schwierig und sehr aufwendig.With today's engine cooling fans, the static unbalance is usually compensated for in order to comply with permissible limit values. However, compensating for the dynamic unbalance is difficult and very complex with fans that are often very flat.
Motorgebläsevorrichtungen sind in folgenden Publikationen beschrieben:
Gemäß der Erfindung wird nun eine Motorgebläsevorrichtung bereitgestellt, mit einem verbesserten Ausgleich der dynamischen Unwucht.According to the invention, a motor blower device is now provided with improved compensation for the dynamic unbalance.
Die erfindungsgemäße Motorgebläsevorrichtung für ein Fahrzeug weist dabei die Merkmale des unabhängigen Anspruchs 1 auf.The engine blower device according to the invention for a vehicle has the features of independent claim 1.
Eine solche Motorgebläsevorrichtung hat den Vorteil, dass eine einfache und automatisierbare Möglichkeit gegeben ist, die dynamische Unwucht auszuwuchten und die aus der Unwucht entstehenden Nachteile zu verhindern. Gemäß der Erfindung werden beispielsweise zwei oder mehr Wuchtelemente zum Ausgleichen einer dynamischen Unwucht in zwei oder mehreren Aufnahmekonturen befestigt bzw. von außen verklemmt und/oder verklebt. Die Wuchtelemente sind dabei so dimensioniert bzw. weisen ein vorbestimmtes Gewicht auf und sind so in den Aufnahmekonturen positioniert, dass eine dynamische Unwucht im Wesentlichen verhindert werden kann. Dabei sind beispielsweise zwei Aufnahmekonturen vorgesehen, die jeweils nur eine Rotationsebene aufweisen.Such a motor blower device has the advantage that there is a simple and automatable way to balance the dynamic unbalance and to prevent the disadvantages resulting from the unbalance. According to the invention, for example, two or more balancing elements to compensate for a dynamic unbalance are fastened in two or more receiving contours or clamped and/or glued from the outside. The balancing elements are dimensioned or have a predetermined weight and are positioned in the receiving contours in such a way that a dynamic imbalance can essentially be prevented. For example, two receiving contours are provided, each of which only has one plane of rotation.
Weitere bevorzugte Ausführungsformen sind in den Unteransprüchen beschrieben.Further preferred embodiments are described in the subclaims.
Ausführungsformen der Erfindung werden nachstehend anhand der schematischen Figuren der Zeichnung näher erläutert. Es zeigen:
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Fig. 1 eine Perspektivansicht einer Motorgebläsevorrichtung gemäß eines ersten Beispiels; -
Fig. 2 ein Ausschnitt der Motorgebläsevorrichtung gemäßFig. 1 ; -
Fig. 3 eine Schnittansicht der Motorgebläseeinrichtung gemäßFig. 1 ; -
Fig. 4 ein Ausschnitt einer Perspektivansicht einer Motorgebläsevorrichtung gemäß eines zweiten Beispiels; -
Fig. 5 ein Ausschnitt einer Perspektivansicht einer Motorgebläsevorrichtung mit Weiterbildungen der Erfindung; -
Fig. 6 ein Ausschnitt einer Perspektivansicht einer Motorgebläsevorrichtung mit Weiterbildungen der Erfindung; -
Fig. 7 eine Schnittansicht einer Motorgebläsevorrichtung gemäß eines dritten Beispiels; -
Fig. 8 eine Schnittansicht einer Motorgebläsevorrichtung gemäß einer erfindungsgemäßen Ausführungsform; -
Fig. 9 eine Schnittansicht einer Motorgebläsevorrichtung mit Weiterbildungen der Erfindung; -
Fig. 10 eine Schnittansicht einer Motorgebläsevorrichtung mit Weiterbildungen der Erfindung; -
Fig. 11 ein Ausschnitt einer Perspektivansicht einer Motorgebläsevorrichtung mit Weiterbildungen der Erfindung; -
Fig. 12 ein Ausschnitt einer Perspektivansicht einer Motorgebläsevorrichtung gemäß eines vierten Beispiels; -
Fig. 13 verschiedene Ausführungsformen für ein Auswuchtelement; und -
Fig. 14 eine Schnittansicht der Motorgebläsevorrichtung gemäß des ersten Beispiels mit einer Bestimmung des maximalen Unwuchtausgleichs.
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Fig. 1 a perspective view of an engine blower device according to a first example; -
Fig. 2 a section of the engine blower device according toFig. 1 ; -
Fig. 3 a sectional view of the engine blower device according toFig. 1 ; -
Fig. 4 a detail of a perspective view of an engine blower device according to a second example; -
Fig. 5 a detail of a perspective view of a motor blower device with further developments of the invention; -
Fig. 6 a detail of a perspective view of a motor blower device with further developments of the invention; -
Fig. 7 a sectional view of an engine blower device according to a third example; -
Fig. 8 a sectional view of an engine blower device according to an embodiment of the invention; -
Fig. 9 a sectional view of a motor blower device with further developments of the invention; -
Fig. 10 a sectional view of a motor blower device with further developments of the invention; -
Fig. 11 a detail of a perspective view of a motor blower device with further developments of the invention; -
Fig. 12 a detail of a perspective view of an engine blower device according to a fourth example; -
Fig. 13 various embodiments for a balancing element; and -
Fig. 14 a sectional view of the motor fan device according to the first example with a determination of the maximum unbalance compensation.
In allen Figuren sind gleiche bzw. funktionsgleiche Elemente und Vorrichtungen - sofern nichts anderes angegeben ist - mit denselben Bezugszeichen versehen worden.In all figures, identical or functionally identical elements and devices - unless otherwise stated - have been given the same reference numerals.
In den
Die Motorgebläsevorrichtung 10 weist, eine Lüftereinrichtung 12 auf, welche ein oder mehrere Flügelelemente 14 enthält, die an ihrer Außenseite von einem Lüfterrad 16 begrenzt sind und an ihrer Innenseite an einem Nabenbereich 18 der Lüftereinrichtung 12 z.B. angeformt sind. Des Weiteren weist die Motorgebläsevorrichtung 10 einen Motor 20 auf zum Antreiben der Lüftereinrichtung 12. Die Lüftereinrichtung 12 ist dabei beispielsweise über eine Mitnehmereinrichtung 22 mit dem Motor 20 koppelbar.The
Um nun eine dynamische Unwucht der Motorgebläsevorrichtung 10 und deren Lüftereinrichtung 12 geeignet auszugleichen weist die Motorgebläsevorrichtung 10gemäß dem ersten Beispiel, eine Aufnahmekontur 24 auf, die wenigstens zwei, drei oder mehr Ebenen 26 aufweist, welche auf unterschiedlichen Höhen angeordnet sind. In der Aufnahmekontur 24 können hierbei eins, zwei, drei oder mehr Wuchtelemente 28 vorgesehen werden. Die Wuchtelemente 28 können dabei in den verschiedenen Ebenen 26 der Aufnahmekontur 24 geeignet positioniert werden, um einer dynamischen Unwucht entgegen zu wirken. Die Aufnahmekontur 24 bildet dabei beispielsweise eine umlaufende Rille 30 die eine erste Ebene 26 aufweist und die des Weiteren mit zusätzlichen Vertiefungen bzw. Aufnahmen versehen ist, die die zweite Ebene 26 bilden, wie in den
In
In
In
Gemäß einer nicht erfindungsgemäßen Weiterbildung bilden die Kammern 38 hierbei eine, zwei oder mehrere Ebenen 26. In dem Beispiel in
Weiter ist in
Gemäß einer nichterfindungsgemäßen Weiterbildung bilden die teilweise umlaufenden Rillen 30, wie sie in
Des Weiteren ist in
Gemäß einer nicht erfindungsgemäßen Weiterbildung kann die jeweilige Aufnahmekontur 24, wenigstens eine, zwei oder mehrere Ebenen 26 bzw. Rotationsebenen 26 aufweisen zur Aufnahme einer, zwei oder mehrerer Wuchtelemente 28. In
Dabei können neben Nietelementen 52 als Wuchtelementen 28 auch beispielsweise pilzförmige Elemente 54, Stiftelemente 56 oder sonstig beliebig geformte Wuchtelemente 28 vorgesehen werden, die in einer jeweiligen Öffnung 50 befestigbar sind. Dabei können in wenigstens einem, zwei oder mehreren Flügelelementen 14 wenigstens eine, zwei oder mehr Aufnahmekonturen 24 in Form von Öffnungen 50 vorgesehen werden die mit Wuchtelementen 28 bestückt werden können.In addition to rivet elements 52 as balancing
Diese Weiterbildung kann dabei auch mit den anderen Ausführungsformen und Weiterbildungen kombiniert werden. Dabei sind neben den Aufnahmekonturen 24 in Form von Öffnungen 50 in den Flügelelementen 14 auch wenigstens eine, zwei oder mehrere Aufnahmekonturen 24 in Form von Rillen 30 an der Lüftereinrichtung 12 vorgesehen. Eine Rille 30 weist hierbei beispielsweise zwei Rotationsebenen 26 auf, in welchen Wuchtelemente 28, beispielsweise in Form von Kugeln 58, aufgenommen werden können.This further development can also be combined with the other embodiments and further developments. In addition to the receiving
Weiter ist in
Als Wuchtelemente 28 können, wie in
Der maximale dynamische Unwuchtausgleich ist nun gleich
Die Motorgebläsevorrichtung 10 enthält gemäß der beschriebenen Erfindung eine in der Lüftereinrichtung 12 integrierte spezielle Aufnahmekontur 24 bzw. Aufnahmekonturen 24. Diese Aufnahmekonturen 24 dienen jeweils zur Befestigung von Wuchtmassen 28 in verschiedenen Rotationsebenen 26, vorzugsweise senkrecht zu der Lüfterrotationsachse 34. In diese Aufnahmekonturen 24 werden beispielsweise metallische oder metallhaltige Wuchtgewichte 28 befestigt. Der Metallanteil der Wuchtgewichte 28 beträgt dabei beispielsweise 25 bis 100 Gew.-%. Die Wuchtgewichte bzw. Wuchtelemente 28 erzeugen alleine eine dynamische Unwucht bei der Rotation um die Lüfterrotationsachse 34 von > 400 gmm2, wie zuvor an dem Beispiel von
Durch das Einbringen von zwei, drei und mehr Aufnahmekonturen 24 in die Lüftereinrichtung 12 zur Befestigung von Wuchtelementen 28 bzw. Wuchtmassen in unterschiedlichen Rotationsebenen 26, kann die dynamische Unwucht von Motorkühlungsgebläsen 10 erstmals technisch einfach automatisiert gewuchtet werden. Ein Verfahren zum automatischen Anbringen von Wuchtmassen durch Einpressen oder Einschießen von z.B. Kugeln zum statischen Unwuchtausgleich kann nach Anpassung zum automatisierten dynamischen Unwuchtausgleich übernommen werden. Ebenso ist es vorstellbar, schwere z.B. metallhaltige Gießmassen in diesen Konturen 24 zu verkleben und dadurch die dynamische Unwucht des Gebläses 10 zu wuchten. Mit der Anwendung der Erfindung können die mit Bezug auf den Stand der Technik zuvor beschriebenen Mängel im Wesentlichen beseitigt werden und dadurch ein erheblicher technischer Wettbewerbsvorteil realisiert werden.By introducing two, three or
Die zuvor beschriebenen Ausführungsformen und Weiterbildungen können miteinander kombiniert werden, insbesondere einzelne Merkmale davon. Bei den Wuchtelementen 28 können Wuchtelemente 28 eingesetzt werden, die gleich an Gewicht, Material und/oder Form sind oder es können wenigstens zwei oder mehr oder alle Wuchtelemente 28 sich in Form, Material und/oder Gewicht unterscheiden. Des Weiteren können Aufnahmekonturen 24 in Form von Öffnungen 50 nicht nur an Flügelelementen 14 des Lüfterrads 16 vorgesehen werden sondern z.B. auch am Lüfterrad 16 selbst und/oder z.B. dem Nabenbereich 18 der Lüftereinrichtung 12.The previously described embodiments and further developments can be combined with one another, in particular individual features thereof. For the balancing
Claims (10)
- Engine fan device for a vehicle, the engine fan device having at least two or more mounting contours (24, 30, 50), in which one or two or more balancing elements (28) can be mounted, characterized in that at least two of the mounting contours (24) each have only one plane of rotation (26), wherein the at least two planes of rotation (26, A, B, C, D) are arranged offset from one another in the axial direction with respect to an axis of rotation (34) of the engine fan device (10), and wherein at least one mounting contour (24) is oriented open towards an upper side (42) and one mounting contour (24) is oriented open towards an underside (44) of the engine fan device (10), and wherein the mounting contours (24) are in each case provided for fixing at least one balancing element (28) in different planes of rotation (26).
- Engine fan device according to Claim 1, characterized in that one or more mounting contours (24) are embodied in the form of at least one or more grooves (30), the grooves (30) being designed to run around all or part of the circumference.
- Engine fan device according to Claim 1 or 2, characterized in that the at least one mounting contour (24) is arranged concentrically around the axis of rotation (34) of the engine fan device (10).
- Engine fan device according to at least one of Claims 1 to 3, characterized in that at least one or more mounting contours (24) are arranged in a hub area (18) of a fan appliance (12) of the engine fan device (10) and/or at least one or more mounting contours (24) are arranged on the outside (46) of a fan wheel (16) of the fan appliance (12) and/or at least one or more mounting contours (24) are arranged adjoining the hub area (18) or at the inner end (40) of blade elements (14) of the fan appliance (12) and/or at least one or more mounting contours (24) are arranged at the outer end of the blade elements (14) or on the inside (44) of the fan ring (12) .
- Engine fan device according to at least one of Claims 1 to 4, characterized in that the mounting contour (24) in the form of a groove (30) is designed to run around all or part of the circumference, the mounting contour (24) being divided by one or more ribs (36) in order to form one or more chambers (38), in which one or more balancing elements (28) can be mounted.
- Engine fan device according to at least one of Claims 1 to 5, characterized in that multiple mounting contours (24) in the form of grooves (30) are arranged in a circle around the axis of rotation (34), the mounting contours (24) comprising chambers (38) of the same or different sizes, in which at least one or more balancing elements (28) can be mounted.
- Engine fan device according to at least one of Claims 1 to 6, characterized in that a fan appliance (12) of the engine fan device (10) comprises at least one or more blade elements (14), at least one, more or all blade elements (14) having at least one or more mounting contours (24) in the form of openings (50), in which at least one balancing element (28) can be mounted, it being possible to arrange the mounting contours (24) on different levels of the blade element (14) or the blade elements (14), for example.
- Engine fan device according to at least one of Claims 1 to 7, characterized in that a balancing element (28) for mounting in the mounting contour (24), for example a groove (30) or opening (50), is a spherical element (58), a rivet element (52), a mushroom-shaped element (54), a pin element (56) or a cylindrical element, an expanding spring element (62), a rectangular block element (60) or a casting compound (64), and the mounting contour (24) in the form of an opening (50) being of circular, oval and/or polygonal design, for example.
- Engine fan device according to at least one of Claims 1 to 8, characterized in that the balancing element (28) is externally clamped and fixed thereby by the mounting contour (24) or is externally clamped by pre-tightening, and the balancing element (28) being additionally or alternatively capable of being fixed in the mounting contour (24) by means of adhesive.
- Engine fan device according to at least one of Claims 1 to 9, characterized in that two or more or all balancing elements (28) are of different or the same design in respect of shape, dimensions, weight and/or material, a balancing element (28) being made of metal or being metallic, for example, a metallic balancing element (28) having a metal content of 25% to 100% by weight, for example.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008041858A DE102008041858A1 (en) | 2008-09-08 | 2008-09-08 | Engine cooling fan with dynamic unbalance compensation |
PCT/EP2009/058669 WO2010025976A1 (en) | 2008-09-08 | 2009-07-08 | Engine cooling fan having dynamic out-of-balance equalization |
EP09780316A EP2324251A1 (en) | 2008-09-08 | 2009-07-08 | Engine cooling fan having dynamic out-of-balance equalization |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09780316A Division EP2324251A1 (en) | 2008-09-08 | 2009-07-08 | Engine cooling fan having dynamic out-of-balance equalization |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3885582A1 EP3885582A1 (en) | 2021-09-29 |
EP3885582B1 true EP3885582B1 (en) | 2024-03-13 |
Family
ID=41035901
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21168497.2A Active EP3885582B1 (en) | 2008-09-08 | 2009-07-08 | Engine cooling fan with dynamic imbalance compensation |
EP09780316A Ceased EP2324251A1 (en) | 2008-09-08 | 2009-07-08 | Engine cooling fan having dynamic out-of-balance equalization |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09780316A Ceased EP2324251A1 (en) | 2008-09-08 | 2009-07-08 | Engine cooling fan having dynamic out-of-balance equalization |
Country Status (6)
Country | Link |
---|---|
US (1) | US8784058B2 (en) |
EP (2) | EP3885582B1 (en) |
JP (1) | JP2012502213A (en) |
CN (1) | CN102144101A (en) |
DE (1) | DE102008041858A1 (en) |
WO (1) | WO2010025976A1 (en) |
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-
2009
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- 2009-07-08 US US13/062,739 patent/US8784058B2/en not_active Expired - Fee Related
- 2009-07-08 CN CN2009801349680A patent/CN102144101A/en active Pending
- 2009-07-08 EP EP21168497.2A patent/EP3885582B1/en active Active
- 2009-07-08 JP JP2011525477A patent/JP2012502213A/en active Pending
- 2009-07-08 EP EP09780316A patent/EP2324251A1/en not_active Ceased
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Also Published As
Publication number | Publication date |
---|---|
US8784058B2 (en) | 2014-07-22 |
US20110236211A1 (en) | 2011-09-29 |
WO2010025976A1 (en) | 2010-03-11 |
JP2012502213A (en) | 2012-01-26 |
DE102008041858A1 (en) | 2010-03-11 |
EP3885582A1 (en) | 2021-09-29 |
EP2324251A1 (en) | 2011-05-25 |
CN102144101A (en) | 2011-08-03 |
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