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EP2189634A1 - Unité d'entraînement pour un ventilateur et agencement doté d'une unité d'entraînement - Google Patents

Unité d'entraînement pour un ventilateur et agencement doté d'une unité d'entraînement Download PDF

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Publication number
EP2189634A1
EP2189634A1 EP09012849A EP09012849A EP2189634A1 EP 2189634 A1 EP2189634 A1 EP 2189634A1 EP 09012849 A EP09012849 A EP 09012849A EP 09012849 A EP09012849 A EP 09012849A EP 2189634 A1 EP2189634 A1 EP 2189634A1
Authority
EP
European Patent Office
Prior art keywords
fan
drive unit
electric motor
internal combustion
combustion engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09012849A
Other languages
German (de)
English (en)
Inventor
Rainer Dr. Krafft
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licos Trucktec GmbH
Original Assignee
Licos Trucktec GmbH
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 Licos Trucktec GmbH filed Critical Licos Trucktec GmbH
Publication of EP2189634A1 publication Critical patent/EP2189634A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/046—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using mechanical drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/04—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio
    • F01P7/048—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using electrical drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/04—Pump-driving arrangements
    • F01P2005/046—Pump-driving arrangements with electrical pump drive
    • 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
    • F01P2070/00—Details
    • F01P2070/50—Details mounting fans to heat-exchangers

Definitions

  • Fan and cooling systems and arrangements with such systems are known in vehicles, especially in motor vehicles with internal combustion engines.
  • viscose couplings are installed in today's systems in particular multi-stage electromagnetic clutches or so-called viscose couplings are installed. It can result in a low speed range of a fan of the cooling system via a system permanently subject to slip a considerable power loss.
  • viscous couplings can ensure a free speed adjustment of the fan drive as long as a power loss does not exceed certain operating limits.
  • Fan torque and differential speed of the coupled partners rotation dependent power losses of several kilowatts. Disadvantages of viscose couplings are observed in particular in a cold start phase or at a shutdown.
  • the object of the present invention is to drive a cooling system for a vehicle with an internal combustion engine provide that can be advantageously adapted to the relevant operating conditions in practice, especially while avoiding the disadvantages previously encountered in generic drive systems.
  • the invention is initially based on a drive unit for a fan of an internal combustion engine of a vehicle, with a Reibschaltkupplung which is switchable to drive the fan via the internal combustion engine.
  • the core of the drive unit according to the invention is that for driving the fan also an electric motor is provided, and that a torque transmission between the Reibschaltkupplung and the fan is formed by a rotatably mounted part of the electric motor.
  • the electric motor has a stator and a rotor, which are rotatable relative to one another.
  • an advantageous drive unit with respect to an improved control or comfortable adjustment of the fan power in the low power range over a desired or adjustable fan speed can be achieved.
  • the drive unit according to the invention combines in particular the advantages of a viscous coupling and the advantage of a multi-stage friction clutch, for example an electromagnetically actuated friction clutch.
  • a free speed adjustment can be realized as long as the power loss does not exceed their operating limits.
  • the drive effect on the fan wheel can be completely adjusted or switch without permanent slip.
  • a direct drive from a drive shaft the fan wheel or a fan hub is possible 1: 1.
  • the drive according to the invention is particularly advantageous for commercial vehicles.
  • an electric motor with an electrical power of about 5 kW are provided without problems.
  • a first operating state, according to which the fan wheel is not driven can be realized and, in addition, a second operating state with a regulation up to approximately 5 kW of power.
  • the invention thus takes account in particular of the fact that in practice in cooling systems, for example, for commercial vehicles usually 80% of the useful life, a cooling of the cooling system by the wind is done. At approx. 18% of the operating time, the fan power of a maximum of approx. 5 kW is required. Only in 2% of the operating time a higher to highest fan power is needed. With the drive unit according to the invention, these operating conditions can be advantageously covered. It is also advantageous that even with a standstill of the internal combustion engine, a cooling capacity of a maximum of 5 kW via the electric motor is possible.
  • Reibschaltkupplung is designed to allow a direct drive of the fan by the internal combustion engine.
  • the friction clutch may advantageously be designed as an electromagnetically operable friction surface clutch, e.g. as a friction disc clutch.
  • a slip-free connection of a motor-side drive shaft and a fan-side fan shaft can be enabled by force or friction.
  • a ferachgiebige coupling is provided for driving the fan by the internal combustion engine.
  • About the ferachgiebige coupling of the fan can be driven, for example, in a lower speed of the internal combustion engine speed.
  • a torque-dependent overload protection can be realized, which may be advantageous in certain applications.
  • a eddy current coupling in question.
  • the friction clutch and the electric motor in the installed state in the radial direction do not extend or only slightly over a diameter of a fan hub of the fan. This allows a particularly compact design of the drive unit can be realized.
  • an already necessary construction or mounting space in the radial direction, in particular to an axis about which the fan or a fan can rotate during operation can be used, which makes it easy to integrate or retrofit the drive unit according to the invention for existing modules.
  • the electric motor has a housing to which the fan is attached.
  • the fan itself can also be designed as in previous systems.
  • the friction clutch and the electric motor are combined to form a structural unit. This facilitates the assembly and disassembly of the drive unit. In addition, so that the entire drive can be made compact with the drive unit. In addition, the parts of the friction clutch and the electric motor may optionally be housed protected in a common housing.
  • the Reibschaltkupplung and the electric motor is connected to a unit, which is advantageous in terms of optimal space utilization.
  • the invention also relates to an arrangement for cooling an internal combustion engine with a radiator for cooling the internal combustion engine and a cooperating with the radiator fan, wherein a drive unit for the fan according to the above-mentioned variants is present.
  • the cooling arrangement for the internal combustion engine can be designed according to the advantages mentioned above.
  • the drive unit comprises a friction clutch and an electric motor, which are combined to form a structural unit, wherein the structural unit is connected to the radiator.
  • the fan thereby generates an air flow which is guided past surfaces of the cooler in order to effectively obtain heat transfer from regions of the cooler to the air flowing around.
  • the drive unit comprises a friction clutch and an electric motor, which are formed separately. This can be done advantageously an assembly and disassembly or exploitation of an existing space.
  • the friction clutch is arranged on the internal combustion engine. This can vary depending on Use case or present installation ratio be advantageous.
  • the electric motor is mounted on the radiator, in particular the entire drive unit of clutch and electric motor. This can be advantageous in terms of a compact design of the drive unit or assembly.
  • FIG. 1 shows highly schematized or omitting components, a drive unit 1 according to the invention in the installed state, for example in a vehicle with internal combustion engine or with an internal combustion engine 3, for example a diesel engine, the internal combustion engine 3 is shown only indicated. Under the drive unit 1 is the part of the drive for a fan 2 to understand, the drive unit 1 does not include the internal combustion engine 3 itself.
  • the fan wheel 2 which is shown only partially or in a hub region, is accommodated on a centric fan hub 2a, which is connected in a rotationally fixed manner to a fan shaft 5, by way of which the fan wheel 2 is rotationally drivable.
  • the fan shaft 5 is formed over its substantial longitudinal extent as part of an electric motor 6 and forms a rotor 8 of the electric motor 6.
  • the rotor 8 is surrounded by a stator 7 of the electric motor 6.
  • the stator 7 is fixed in a fixed position on a radiator section 9 or via the radiator section 9 to a vehicle frame, not shown.
  • the bearing of the stator 7 relative to the rotating rotor 8 via bearings 10 and 11, for example Wälz Archiveslager.
  • a Reibschaltkupplung 12 is provided between a flange 4a rigidly connected to the drive flange 17 and the electric motor 6, on its side facing the engine 3 side.
  • the friction clutch 12 is designed as an electromagnetically actuated friction disc clutch.
  • an electromagnet assembly 13 is provided with a fixed electromagnet 14, wherein 14 generates magnetic forces by energizing the solenoid assembly 13, whereby an axially to the fan shaft 5 recoverably movable armature plate 15 is attracted to a friction ring 16.
  • a coupling connection can be established, via the friction ring 16 a direct speed transmission from the drive shaft 4 to the fan shaft 5 and thus the fan 2 takes place.
  • the drive flange 17 is rotatably mounted on the fan shaft 5 via a bearing 18 at the axial end of the fan shaft 5, which is directed towards the internal combustion engine 3.
  • the solenoid assembly 13 is the Anchor plate 15 by restoring spring means, for example via a spring ring 19, separated from the friction ring portion 16, whereby no drive connection between the drive shaft 4 and the fan shaft 5 takes place.
  • the drive unit 1 can drive the fan via the electric motor 6, if a comparatively low cooling capacity is required for the cooler, not shown.
  • the fan 2 can be operated continuously, for example, up to about 5 kW power. Without energization of the electric motor 6 and the solenoid assembly 13, the fan is stationary or undergoes no motor drive effect.
  • the drive unit 1 with the electric motor 6 and the Reibschaltkupplung 12 in the radial direction to the axis of rotation S of the fan shaft 5 extend over a range a, which is almost completely in the diameter range of the fan hub 2a according to FIG. 1 located.
  • a drive unit according to the invention can also lie completely within the radial extension of a fan hub.
  • the drive unit 1, for example, with the drive flange 17 on the radiator portion 9 is fixedly arranged.
  • a fan wheel 2 radially outwardly existing circumferentially extending gap (not shown) to adjacent sections, for example, an air guide on the radiator minimally optionally be selected in the millimeter range. This can advantageously be avoided or minimized disturbing eddies at the radial outer edge of the fan 2.
  • this gap would be disadvantageous to choose significantly larger in order to prevent contact of the fan with Heilleitringmitteln. This works negatively affect the flow training through the fan.
  • FIG. 2 An alternative arrangement according to the invention with a drive unit 20 shows FIG. 2 , This also serves to drive a fan 21 on a fan hub 21a.
  • an internal combustion engine 22 is provided for driving the fan wheel 21.
  • an electric motor 23 of the drive unit 20 for a continuously variable drive operation of the fan 21 is present.
  • the electric motor 23 includes a fixedly connected to the Lüfterradnabe 21 a rotor 24, which is mounted via bearings 25 and 26 with respect to a positionally fixed to the engine 22 arranged stator 27.
  • the cylindrical stator 27 therefore has at its fan-side end a gap to the fan hub 21a.
  • a friction clutch 28 is provided between the engine 22 and the electric motor 23.
  • the Reibschaltkupplung 28 includes an electromagnet assembly 29 having an electromagnet 30, via which upon energization of the electromagnet 30, an axially displaceable armature disc 31 via axially displaceable in the axial direction of the rotor 24 spring means, such as a spring ring 32, frictionally or force-locking with a portion 33a of a pulley 33 is connectable.
  • the pulley 33 is rotatably supported by a roller bearing 34 on the stator 27 and driven in rotation by non-illustrated belt from the engine 22.
  • a Riemenauflageabterrorism 33b circumferentially on the outside of the pulley 33 is present.
  • the fan wheel hub 21a and thus the fan wheel 21 are steplessly rotated by rotation of the rotor 24 with it.
  • the electric motor 23 and the friction clutch 28 is formed as a structural unit, which is positioned between the fan 21 and the engine 22.
  • FIG. 3 Another arrangement of a drive unit 34 according to the invention indicates FIG. 3 at. Accordingly, the drive unit 34 is divided into two units.
  • a first unit is formed by the electric motor 35, which is accommodated with its stator 36 fixedly connected to a radiator section 38.
  • the stator 36 is supported by bearings 39 and 40 on the rotor 37 rotating together with a fan hub 41a. At the fan hub 41a, a fan 41 is fixed.
  • the rotor 37 forms part of a fan wheel shaft 42.
  • the fan wheel shaft 42 which is in FIG. 3 is shown non-rotatably connected to a drive shaft (not shown) of an internal combustion engine 43 via a friction clutch 44 connectable or separable via the Reibschaltkupplung 44 of a drive action of a drive shaft.
  • the Reibschaltkupplung 44 is only highly schematized or shown in box form.
  • the friction clutch 44 may be in particular in the form of an electromagnetic clutch, which is switchable, be formed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP09012849A 2008-11-20 2009-10-10 Unité d'entraînement pour un ventilateur et agencement doté d'une unité d'entraînement Withdrawn EP2189634A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008058377 2008-11-20
DE102009011347A DE102009011347A1 (de) 2008-11-20 2009-03-05 Antriebseinheit für einen Lüfter und Anordnung mit einer Antriebseinheit

Publications (1)

Publication Number Publication Date
EP2189634A1 true EP2189634A1 (fr) 2010-05-26

Family

ID=41722820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09012849A Withdrawn EP2189634A1 (fr) 2008-11-20 2009-10-10 Unité d'entraînement pour un ventilateur et agencement doté d'une unité d'entraînement

Country Status (3)

Country Link
US (1) US20100122673A1 (fr)
EP (1) EP2189634A1 (fr)
DE (1) DE102009011347A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011006595A1 (fr) * 2009-07-17 2011-01-20 Karl Heinz Linnig Gmbh & Co. Kg Dispositif de refroidissement, notamment dispositif de refroidissement d'un moteur à combustion interne, pourvu d'un moteur d'entraînement secondaire
ITMI20130099A1 (it) * 2013-01-24 2014-07-25 Baruffaldi Spa Frizione elettromagnetica per l'azionamento in rotazione di una ventola di veicoli
DE102021126757A1 (de) 2021-10-15 2023-04-20 Tk Elevator Innovation And Operations Gmbh Personenverlagerungsvorrichtung mit betriebszustandsbezogen aktivierbarer Kühllüftereinheit sowie Verfahren und Verwendung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7669557B2 (en) * 2006-02-08 2010-03-02 Toyota Jidosha Kabushiki Kaisha Cooling device for vehicle
DE112010004066T5 (de) * 2009-10-17 2012-10-18 Borgwarner Inc. Hybridlüfterantrieb mit elektromotor
CN103967579B (zh) * 2014-03-18 2018-12-18 龙口中宇热管理系统科技有限公司 角传动降温装置
US11549427B2 (en) 2020-04-17 2023-01-10 Caterpillar Inc. Engine and fan system having an electric motor
CN112145278B (zh) * 2020-06-30 2022-03-15 东风马勒热系统有限公司 混合动力型电机电控硅油风扇离合器
CN118309675B (zh) * 2024-04-10 2024-10-18 德清恒鑫电子有限公司 一种高散热性冷柜用宽电压ec轴流风扇

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231722U (fr) * 1985-08-09 1987-02-25
DE19545390A1 (de) * 1995-12-06 1997-06-12 Behr Gmbh & Co Tandemlüfter für Kühler von Kraftfahrzeugen
EP1683948A2 (fr) * 2004-12-28 2006-07-26 Baruffaldi S.p.A. Dispositif pour transmettre le mouvement aux ventilateurs, en particulier des véhicules
US20070209612A1 (en) * 2006-02-08 2007-09-13 Toshihiko Kojima Cooling device for vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3203143A1 (de) * 1982-01-30 1983-08-04 Karl-Heinz 7990 Friedrichshafen Linnig Luefterantrieb

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231722U (fr) * 1985-08-09 1987-02-25
DE19545390A1 (de) * 1995-12-06 1997-06-12 Behr Gmbh & Co Tandemlüfter für Kühler von Kraftfahrzeugen
EP1683948A2 (fr) * 2004-12-28 2006-07-26 Baruffaldi S.p.A. Dispositif pour transmettre le mouvement aux ventilateurs, en particulier des véhicules
US20070209612A1 (en) * 2006-02-08 2007-09-13 Toshihiko Kojima Cooling device for vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011006595A1 (fr) * 2009-07-17 2011-01-20 Karl Heinz Linnig Gmbh & Co. Kg Dispositif de refroidissement, notamment dispositif de refroidissement d'un moteur à combustion interne, pourvu d'un moteur d'entraînement secondaire
ITMI20130099A1 (it) * 2013-01-24 2014-07-25 Baruffaldi Spa Frizione elettromagnetica per l'azionamento in rotazione di una ventola di veicoli
DE102021126757A1 (de) 2021-10-15 2023-04-20 Tk Elevator Innovation And Operations Gmbh Personenverlagerungsvorrichtung mit betriebszustandsbezogen aktivierbarer Kühllüftereinheit sowie Verfahren und Verwendung

Also Published As

Publication number Publication date
DE102009011347A1 (de) 2010-05-27
US20100122673A1 (en) 2010-05-20

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