EP0664382B1 - Lüfterantrieb mit Flüssigkeitsreibungskupplung - Google Patents

Lüfterantrieb mit Flüssigkeitsreibungskupplung Download PDF

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Publication number
EP0664382B1
EP0664382B1 EP95100874A EP95100874A EP0664382B1 EP 0664382 B1 EP0664382 B1 EP 0664382B1 EP 95100874 A EP95100874 A EP 95100874A EP 95100874 A EP95100874 A EP 95100874A EP 0664382 B1 EP0664382 B1 EP 0664382B1
Authority
EP
European Patent Office
Prior art keywords
drive
fan
wheel
free
freewheel
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.)
Expired - Lifetime
Application number
EP95100874A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0664382A1 (de
Inventor
Hans Dipl.-Ing. Martin
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.)
Mahle Behr GmbH and Co KG
Original Assignee
Behr GmbH and Co KG
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 Behr GmbH and Co KG filed Critical Behr GmbH and Co KG
Publication of EP0664382A1 publication Critical patent/EP0664382A1/de
Application granted granted Critical
Publication of EP0664382B1 publication Critical patent/EP0664382B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01P7/042—Controlling of coolant flow the coolant being cooling-air by varying pump speed, e.g. by changing pump-drive gear ratio using fluid couplings
    • 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
    • F01P2060/00—Cooling circuits using auxiliaries
    • F01P2060/14—Condenser

Definitions

  • the invention relates to a fan drive with a fluid friction clutch for motor vehicles according to the generic term of Claim 1.
  • GB-A 1 405 994 has disclosed a fan drive in which the Fan on the one hand by the vehicle's internal combustion engine and on the other hand, can be driven as required by an additional electric motor is.
  • the fan from the internal combustion engine via a fluid friction clutch driven which should act as a freewheel while the drive from Electric motor is switched on via an electromagnetic clutch.
  • the fluid friction clutch is not as Freewheel works, but acts as a brake and thus wastes energy. If namely the electric motor with the clutch switched on the fan and thus drives the housing of the fluid friction clutch and when doing so Lower speed of the drive disc of the fluid friction clutch a torque is transmitted based on the differential speed, which acts as a braking torque. This braking power is power loss, with which puts an additional load on the electrical system.
  • the fan drive known per se is known Fluid friction clutch attached to the vehicle Electric motor switched on via a first freewheel; is a second freewheel in the drivetrain between the engine and clutch drive pulley intended.
  • the connection depends on a suitable one Parameters, for example the fan speed or the coolant or Refrigerant temperature.
  • the Electric motor automatically closes and overtakes due to the freewheel the electric motor and the clutch housing the motor-side drive.
  • the electric motor is powered by the vehicle's battery network and drives via a V-belt drive directly to the output side of the clutch, i.e. on the fan, so that this with relatively little extra power on the brought desired speed and can be kept on this.
  • the second freewheel can either be inside the clutch or be arranged outside the clutch.
  • the first Freewheeling either on the output shaft of the electric motor, i.e. in the first V-belt pulley, or on the hub of the second V-belt pulley and be attached within a coupling-side hollow hub.
  • the freewheel itself is a commercially available part, which builds relatively small and little costs, so that with a minimal cost and construction Speed increase of the fan drive in the relevant case can be achieved.
  • the electric motor can, for example, on the engine block be attached.
  • FIG. 1 shows a schematic representation of a fluid friction clutch known per se, which on the drive side consists of a drive flange 1, a drive shaft 2 and a drive disk 3 fastened thereon.
  • a clutch housing 4 is rotatably mounted on the drive shaft 2 via a hub 5 by means of a ball bearing 6.
  • the housing 4 consists of a working chamber 7 and a storage chamber 8, which are separated from one another by a partition 9, but are in flow connection with one another via openings or valves, not shown.
  • the torque from the drive pulley 3 is transmitted to the housing 4, which carries a fan ring 10, by means of liquid friction of a viscous medium.
  • This fan 10 conveys cooling air through a water cooler, not shown, and a condenser of an air conditioning system of a motor vehicle connected upstream thereof.
  • the clutch is driven via the drive flange 1 by the internal combustion engine of the vehicle.
  • an electric motor 11 is arranged, which is fastened on the vehicle or body side and has an output shaft 12. Via a freewheel 13 fastened on the output shaft 12, the electric motor 11 drives via a first V-belt pulley 14 and a V-belt drive 15 onto a second V-belt pulley 16, which is fastened to the clutch housing 4 or its hub 5.
  • the freewheel 13 arranged between the output shaft 12 of the electric motor 11 and the hub of the first V-belt pulley 14 is a commercially available so-called sleeve freewheel, as is available, for example, from INA, Herzogenaurach.
  • This freewheel 13 is attached to the drive shaft 12 or in the hub of the V-belt pulley 14 in such a way that the electric motor 11 drives the clutch housing 4 only when the speed n 3 of the output shaft 12 is greater than that of the V-belt pulley 14 - then A torque is transmitted to the V-belt drive 15, and the fan 10 is then additionally driven by the electric motor 11.
  • This drive by the electric motor 11 switches on automatically when either the fan 10 falls below a certain minimum speed (and thus no longer delivers sufficient cooling air) or when the temperature of the refrigerant in the above-mentioned condenser of the vehicle's air conditioning system exceeds a certain temperature , ie when the air conditioning system no longer provides sufficient cooling capacity to cool the vehicle interior. This situation occurs particularly when the vehicle is idling and the outside temperatures are correspondingly high. Then the automatically switching on electric motor acts as an additional drive or booster to amplify the drive by the internal combustion engine.
  • FIG. 2 shows a further variant, with the same reference numbers applying to the same parts and therefore not being shown completely in the drawing.
  • a second freewheel 17 is provided between the drive shaft 2 of the clutch and the drive disk 3. If the speed of the drive disk 3 or the speed of the fan n 2 is greater than the drive speed n 1 of the motor, then the drive shaft 2 is overtaken by the clutch housing 4 and no more torque is transmitted. The drive pulley 3 is then only dragged along by the housing.
  • FIG. 3 A further exemplary embodiment is shown in FIG. 3 , in which the freewheel between the output shaft 12 of the electric motor 11 and the first V-belt pulley 14 is omitted and is instead arranged as a freewheel 18 on a hub 19 of the second V-belt pulley 16 and the clutch housing 4 via a clutch-side hub 20 drives.
  • the freewheel 17 is retained. As long as the V-belt pulley 16 does not rotate faster than the clutch housing with the speed n 2 , the drive takes place with the drive speed n 1 via the freewheel 17 on the clutch housing.
  • FIG. 4 A further variant is shown in FIG. 4 , where - as in FIGS. 1 and 2 - a first freewheel 13 is again provided between the electric motor and the first V-belt pulley.
  • the freewheel 17 according to the exemplary embodiments according to FIGS. 2 and 3 is here shifted outward from the clutch housing, specifically as a freewheel 21, which is driven on an inner drum 23 by the motor-side flange 1 and, on the other hand, is fastened in an outer drum 22, which is in turn connected to the drive shaft 2.
  • the function of the motor-side drive 1 on the drive disk 3 corresponds to the exemplary embodiment according to FIG. 3, but the separation of the drive train 1, 2 by the freewheel is arranged outside the clutch, ie no changes need to be made within the clutch.
  • FIG. 5 A last exemplary embodiment is shown in FIG. 5 , which corresponds functionally to the exemplary embodiment according to FIG. 4 - with the difference that the freewheel in the engine-side drive train is designed differently:
  • the coupling hub 5 is axially extended by a cylindrical hub piece 26, which has an additional bearing 25 records in which the motor-side drive shaft stub la is mounted.
  • the latter carries a freewheel 24 on the side opposite the drive flange 1, which is fastened in a hollow hub 22 or drive shaft 2.
  • the motor-side drive thus takes place from the drive shaft stub la via the freewheel 24 to the drive shaft 2 and the drive pulley 3.
  • the V-belt pulley 16 is fastened on the hub 5 on the coupling side.
  • FIG. 6 shows a detailed illustration of the freewheel 13, as he provided in the embodiments of Figures 1, 2, 4 and 5 is.
  • these are a so-called sleeve freewheel, as it is commercially available and for example is offered by INA, Herzogenaurauch.
  • a Sleeve 27 takes needle-shaped rolling or Clamping body 28 on the output shaft 12 of the electric motor be postponed.
  • the sleeve 27 is in a corresponding hole the V-belt pulley 14 pressed.
  • the power flow takes place from the Shaft 12 on the V-belt pulley 14 if the shaft 12 faster when the V-belt pulley 14 tries to turn - then block the clamping body 28.
  • Such sleeve freewheels are also for the rest Cases with the reference numbers 17, 18, 21 and 24 are provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Pulleys (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP95100874A 1994-01-25 1995-01-23 Lüfterantrieb mit Flüssigkeitsreibungskupplung Expired - Lifetime EP0664382B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4401979 1994-01-25
DE4401979A DE4401979A1 (de) 1994-01-25 1994-01-25 Lüfterantrieb mit Flüssigkeitsreibungskupplung

Publications (2)

Publication Number Publication Date
EP0664382A1 EP0664382A1 (de) 1995-07-26
EP0664382B1 true EP0664382B1 (de) 1998-12-02

Family

ID=6508566

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100874A Expired - Lifetime EP0664382B1 (de) 1994-01-25 1995-01-23 Lüfterantrieb mit Flüssigkeitsreibungskupplung

Country Status (4)

Country Link
US (1) US5617817A (es)
EP (1) EP0664382B1 (es)
DE (2) DE4401979A1 (es)
ES (1) ES2126796T3 (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19533642C2 (de) * 1995-09-12 1998-10-08 Behr Gmbh & Co Antriebseinrichtung für den Lüfter einer Kühleinrichtung eines Kraftfahrzeugmotors
DE19545390C2 (de) * 1995-12-06 2000-07-27 Behr Gmbh & Co Tandemlüfter für Kühler von Kraftfahrzeugen
DE19821097A1 (de) * 1998-05-12 1999-11-18 Behr Gmbh & Co Antriebseinrichtung für den Kühllüfter eines Kraftfahrzeugmotors
DE19821098A1 (de) * 1998-05-12 1999-11-18 Behr Gmbh & Co Antriebseinrichtung für den Kühllüfter eines Kraftfahrzeugmotors
US5989151A (en) * 1998-08-11 1999-11-23 Siemens Canada Limited Hybrid engine cooling system having electric motor with electro-magnetic clutch
DE10324314B4 (de) * 2002-06-12 2014-02-13 Behr Gmbh & Co. Kg Lüfterantrieb für Kraftfahrzeuge
US7184268B2 (en) * 2005-01-10 2007-02-27 Hewlett-Packard Development Company, L.P. Dynamically adaptable electronics cooling fan
US7866959B2 (en) * 2005-01-24 2011-01-11 Hewlett-Packard Development Company, L.P. Fan clutch for an electronics cooling fan
DE102005062666A1 (de) 2005-12-23 2007-06-28 Behr Gmbh & Co. Kg Antrieb für eine Strömungsmaschine, insbesondere für einen Lüfter eines Kraftfahrzeuges
DE102007056492B3 (de) * 2007-11-22 2009-06-04 Voith Patent Gmbh Lüfterrad
DE102009033616A1 (de) 2009-07-17 2011-01-20 Karl Heinz Linnig Gmbh & Co. Kg Kühlvorrichtung, insbesondere Brennkraftmaschinenkühlvorrichtung, mit einer Sekundärantriebsmaschine
CN102575563B (zh) * 2009-10-17 2015-07-01 博格华纳公司 带有电动机的混合动力型风扇驱动器
DE102010040629A1 (de) * 2010-09-13 2012-03-15 Behr Gmbh & Co. Kg Motorkühlungsgebläse
DE102011006350A1 (de) * 2011-03-29 2012-10-04 Behr Gmbh & Co. Kg Lüftungsvorrichtung für ein Kühlmodul insbesondere in einem Fahrzeug, Verfahren zum Betreiben einer Lüftungsvorrichtung und Kühlsystem insbesondere für ein Fahrzeug
EP3042441B1 (en) * 2013-09-04 2020-12-23 Graco Minnesota Inc. Fan cooled motor with freewheeling fan
JP7547396B2 (ja) 2019-06-28 2024-09-09 ホートン， インコーポレイテッド 正転及び逆転モードで作動可能な遊星歯車装置を備える伝動システム
CN110925073A (zh) * 2019-11-27 2020-03-27 东风商用车有限公司 一种发动机冷却风扇控制系统

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE352754C (de) * 1922-05-03 Paul Bamberg Dr Elektrischer Antrieb des Ventilators an Kraftfahrzeugen
US3363734A (en) * 1962-09-17 1968-01-16 Eaton Yale & Towne Temperature responsive fluid clutch
US3853098A (en) * 1972-10-05 1974-12-10 Nippon Denso Co Driving system for automobile engine cooling fan
JPS52100Y2 (es) * 1972-12-05 1977-01-05
DE3322779C2 (de) * 1983-06-24 1986-09-18 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Flüssigkeitsreibungskupplung
DE3345340C2 (de) * 1983-12-15 1985-11-28 Daimler-Benz Ag, 7000 Stuttgart Antrieb für das Kühlluftgebläse einer Brennkraftmaschine

Also Published As

Publication number Publication date
ES2126796T3 (es) 1999-04-01
DE4401979A1 (de) 1995-07-27
US5617817A (en) 1997-04-08
EP0664382A1 (de) 1995-07-26
DE59504368D1 (de) 1999-01-14

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