WO2012168220A1 - Embrayage à friction pouvant être actionné de façon électromagnétique - Google Patents

Embrayage à friction pouvant être actionné de façon électromagnétique Download PDF

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Publication number
WO2012168220A1
WO2012168220A1 PCT/EP2012/060568 EP2012060568W WO2012168220A1 WO 2012168220 A1 WO2012168220 A1 WO 2012168220A1 EP 2012060568 W EP2012060568 W EP 2012060568W WO 2012168220 A1 WO2012168220 A1 WO 2012168220A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing device
bearing
friction clutch
clutch according
ring
Prior art date
Application number
PCT/EP2012/060568
Other languages
German (de)
English (en)
Inventor
Manfred Gebhart
Original Assignee
Kendrion Linnig 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 Kendrion Linnig Gmbh filed Critical Kendrion Linnig Gmbh
Priority to DE112012002372.2T priority Critical patent/DE112012002372A5/de
Publication of WO2012168220A1 publication Critical patent/WO2012168220A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/10—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings
    • F16D27/108—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members
    • F16D27/112—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with an electromagnet not rotating with a clutching member, i.e. without collecting rings with axially movable clutching members with flat friction surfaces, e.g. discs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/022—Units comprising pumps and their driving means comprising a yielding coupling, e.g. hydraulic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/026—Units comprising pumps and their driving means with a magnetic coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/12—Clutch systems with a plurality of electro-magnetically-actuated clutches
    • 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
    • F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
    • F01P7/081—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps using clutches, e.g. electro-magnetic or induction clutches
    • F01P7/082—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps using clutches, e.g. electro-magnetic or induction clutches using friction clutches
    • F01P7/084—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps using clutches, e.g. electro-magnetic or induction clutches using friction clutches actuated electromagnetically

Definitions

  • the invention relates to an electromagnetically actuated friction clutch, preferably with a shaft portion comprehensive, directly with a crankshaft rotatably connectable drive element according to the preamble of claim 1. Furthermore, the invention relates to an internal combustion engine according to claim 1 1.
  • the fan is rotatably arranged via a bearing device on a drive element, such as a drive shaft.
  • a drive element such as a drive shaft.
  • the inner ring of the bearing device is fastened rotationally fixed directly on the drive element, while the outer ring of the bearing device is operatively connected to the fan.
  • the electromagnetically actuated friction clutch can be designed to drive the fan a frictional engagement, so that the fan rotates at the same speed as the drive element.
  • the coil of Reibschaltkupplung is stationary by means of a support member and a bearing on the drive element relative to the environment.
  • Friction disk clutches which are driven by a pulley are described, for example, in US 2006/0086585 A1, EP 1 108 913 A2, WO 2010/148507 A1, US 2005/0205374 A1, EP 1 400 697 A1, DE 603 14 934 T2 and DE 3 443 523 C2.
  • the present invention seeks to further develop an electromagnetically actuated Reibschalt- coupling according to the preamble of claim 1 such that the load on the bearing device, which serves to support the fan wheel, is lowered so that it does not the mentioned standstill marks on the storage facility comes. Furthermore, the object is to provide an internal combustion engine with a correspondingly improved, can be driven via the crankshaft of the internal combustion engine friction disc clutch.
  • the drive element preferably comprises an end-side flange for direct fixing to the crankshaft of an internal combustion engine.
  • the coupling according to the invention has a drive shaft and is preferably not driven by a pulley.
  • the drive shaft preferably forms the center of the clutch around which the other components are arranged.
  • the friction disk clutch according to the invention is equipped exclusively with standard bearings, ie two-ring bearings. Also advantageous is the short overall length of the coupling, wherein it is particularly advantageous that the fan is space-saving from the axial direction from the rear mounted. Another advantage is that the clutch wear is sucked by the air flow of the cooling fin ring. It is also advantageous that the air gap of the armature disk to the rotor can be measured by the cooling fin ring.
  • the coupling according to the invention is particularly suitable for crankshaft assembly.
  • the electromagnet arrangement is arranged in a magnetic coil carrier region on the carrier element, and / or that an annular receiving region is formed between the magnet coil carrier region and the extension section, and / or that the second bearing device is at least partially inside the carrier Receiving area is arranged.
  • the electromagnet assembly is associated with a torque arm for securing against rotation.
  • the arrangement according to the invention of the second bearing device on an extension section of the carrier element makes it possible in a preferred variant in particular that the second bearing device is designed as a double-row ball bearing. In such a ball bearing is a relatively inexpensive standard ball bearing, so that such a friction clutch is less expensive to produce.
  • the electromagnetically actuated friction clutch is used to couple the fan with friction clutch active by frictional engagement with the drive element, so that the maximum cooling capacity of the fan is achieved.
  • an eddy current coupling is provided with the fan at least indirectly connected permanent magnet elements and at least one with the permanent magnet elements cooperating counter element, in particular in the form of a steel ring, wherein the at least one counter element is rotatably connected to the drive element.
  • the carrier element is mounted only on the first bearing device on a shaft portion of the drive element, it is provided to provide a double-row ball bearing for generating or receiving the required bearing forces.
  • Such a design has the advantage of a particularly compact in axial length design of the friction clutch.
  • the coupling element is also possible for the coupling element to be connected to the extension section by means of a third bearing device and to support it radially, wherein the third bearing device is arranged on the side of the second bearing device facing away from the first bearing device.
  • Such mounting of the support element by means of two storage devices has the advantage of a particularly stiff, i. mechanically robust design. This makes it possible, for example, to mount the friction clutch directly on a crankshaft.
  • the first and the third bearing means are each formed as a single-row ball bearing.
  • FIG. 1 shows a detail of a Reibschaltkupplung invention in a partially sectioned side view at a section through the center line of the drive shaft and Fig. 2 a comparison with the Fig. 1 modified Reibschaltkupplung, also in a partially sectioned side view.
  • a first invention, electromagnetically actuated friction clutch 10 is shown.
  • the friction clutch 10 is used to drive a in Fig. 1 only partially shown fan wheel 1, which provides an air flow rate for cooling a radiator, which in turn serves the cooling of an internal combustion engine.
  • the friction clutch 10 is part of a drive system 100 having a drive element in the form of a drive flange 1 1, which is arranged at its one end face, for example at the end of a crankshaft of the internal combustion engine or connected thereto.
  • the first bearing device 13 On the crankshaft side facing a first bearing portion 13 is disposed on a first shaft portion 12 with a relatively large diameter.
  • the first bearing device 13 comprises an inner ring 14, an outer ring 15 and two rows of bearing bodies 16, which are arranged between the inner ring 14 and the outer ring 15 axially in the direction of the longitudinal axis of the shaft portion 12 in a row.
  • the first bearing device 13 is thus designed as a double-row ball bearing.
  • the first bearing device 13 serves for the stationary mounting of a carrier element 20.
  • the rotationally symmetrical carrier element 20 has, in a radially outer section, a magnet coil carrier region 21 which is U-shaped in cross-section and in which a coil 22 is arranged, which can be supplied with current via an electrical connection line 23.
  • a magnet coil carrier region 21 which is U-shaped in cross-section and in which a coil 22 is arranged, which can be supplied with current via an electrical connection line 23.
  • the carrier element 20 On the side facing away from the first bearing device 13, the carrier element 20 has an extension section 25 which radially surrounds a second shaft section 26, wherein the further (second) shaft section 26 has a smaller diameter than the shaft section 12.
  • the extension section 25 is substantially sleeve-shaped and protrudes beyond the one end side of the magnet coil support portion 21. Between the extension section 25 and the magnetic coil carrier region 21, an annular receiving region 27 is formed.
  • a second bearing device 30 is arranged on the outer circumference of the extension section 25, a second bearing device 30 is arranged.
  • the second bearing device 30 is designed substantially analogously to the first bearing device 13. It has an inner ring 31 and an outer ring 32. Between the inner ring 32 and the outer ring 32 two rows of bearing bodies 33 are arranged axially one behind the other, so that the second bearing means 30 is also formed as a double-row ball bearing. The second bearing device 30 is arranged axially partially within the receiving region 27 of the carrier element 20. The second bearing device 30 serves for the rotatable mounting of a fan ring 35.
  • the Lüfterradring 35 has an annular portion 36 which is rotatably connected to the outer ring 32 of the second bearing means 30 and also partially protrudes into the receiving area 27. From the annular portion 36 projects from a flange-shaped circumferential friction ring portion 37, which in turn in a second, annular portion 38 ü- passes, which engages around the magnetic coil support portion 21 radially.
  • the second annular portion 38 is adjoined by a flange-shaped carrier region 39, to which the fan impeller 1 is fastened, and which also carries a plurality of permanent magnet elements 41 which are arranged at regular angular intervals relative to one another and form part of an eddy current coupling 40.
  • annular coupling element 42 On the side of the drive flange 1 1 facing away from the first bearing device 13, an annular coupling element 42 is non-rotatably connected to the drive flange 11.
  • annular coupling plate 43 On the coil 22 opposite side of the friction ring portion 37 of the support member 20, an annular coupling plate 43 is attached to the coupling element 42 which comes into energization of the coil 22 in operative connection with the friction ring portion 37 of the support member 20 and this entrains, such that the fan 1 is rotated at the same speed as the drive flange 1 1.
  • a cooling rib ring 44 Arranged on a radially outer region of the coupling element 42 is a cooling rib ring 44 which, on the side facing the permanent magnet elements 41, has a counter element in the form of a steel ring 45 cooperating therewith.
  • the steel ring 45 is thus also part of the eddy current coupling 40 and serves to unwinded coil 22, the fan 1 with a certain speed, the so-called drag speed, with turn to provide a certain minimum cooling.
  • the second bearing means 30 is rotatably mounted with its inner ring 31 on the extension portion 25 of the support member 20, it is ensured that regardless of the operating state of the friction clutch 10 between the inner ring 31 and the outer ring 32 always has a relative speed, so that it especially not for Training so-called standstill markings on the second bearing means 30 may come.
  • the friction clutch 10a shown in FIG. 2 differs from the friction clutch 10 of FIG. 1 in that the coupling element 42a is provided with a radially encircling bearing portion 48 which radially surrounds a third bearing device 50.
  • the third bearing device 50 has an inner ring 51 and an outer ring 52. Between the inner ring 51 and the outer ring 52 a number of bearing bodies 53 is arranged.
  • the third bearing device 50 thus forms a single-row ball bearing.
  • the inner ring 51 is mounted on the extension portion 25a of the support member 20a, wherein the extension portion 25a extends axially into the region of the bearing portion 48, that is, in contrast to the extension portion 25 is formed axially extended.
  • the extension section 25a is radially supported or fixed, so that bending stresses are absorbed by the first bearing device 13a and the third bearing device 50. It is essential that the first bearing 13a, in contrast to the bearing device 13 of the Reibschalt- coupling 10 may also be formed as a single-row ball bearing and thus axially has a smaller overall length.
  • the third bearing device 50 between the extension portion 25a and the bearing portion 48 of the coupling 42a may also be provided to arrange the third bearing means 50 directly on the drive flange 1 1, so that the third bearing means 50, the extension portion 25a from its inside surrounds and thus supports.
  • the third bearing device 50 is preferably designed as a needle bearing.
  • the friction clutch 10, 10a described so far I can be varied or modified in many ways, without departing from the spirit.
  • the drive flange 1 1 is not coupled or connected directly to the crankshaft of the internal combustion engine, but spaced from this and arranged, for example, by means of a toothed belt or the like is driven.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention concerne un embrayage à friction (10) pouvant être actionné de façon électromagnétique (10; 10a), comprenant un élément d'entraînement (11) monté de manière rotative et un ensemble électroaimant (22) disposé sur un élément de support (20 ; 20a). L'élément de support (20 ; 20a) est monté au moyen d'un premier dispositif à palier (13 ; 13a) sur une partie d'arbre (12) de l'élément d'entraînement (11) et peut être fixé par rapport aux zones environnantes. L'embrayage comprend également un deuxième dispositif à palier (30) comprenant une bague de palier intérieure (31), une bague de palier extérieure (32) et des corps de palier (33) disposés entre les deux bagues de palier (31, 32). Le deuxième dispositif à palier (30) sert au montage rotatif d'une roue de ventilateur (1) sur une partie d'arbre (26) de l'élément de sortie (11). Selon l'invention, l'élément de support (20 ; 20a) comporte une partie de prolongement (25 ; 25a) parvenant au moins jusque dans la zone du deuxième dispositif à palier (30) et entourant radialement la partie d'arbre (26) de l'élément de sortie (11). La bague intérieure (31) du deuxième dispositif à palier (30) est disposée sur la partie de prolongement (25 ; 25a).
PCT/EP2012/060568 2011-06-09 2012-06-05 Embrayage à friction pouvant être actionné de façon électromagnétique WO2012168220A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112012002372.2T DE112012002372A5 (de) 2011-06-09 2012-06-05 Elektromagnetisch betätigbare Reibschaltkupplung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011050960A DE102011050960A1 (de) 2011-06-09 2011-06-09 Elektromagnetisch betätigbare Reibschaltkupplung
DE102011050960.7 2011-06-09

Publications (1)

Publication Number Publication Date
WO2012168220A1 true WO2012168220A1 (fr) 2012-12-13

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PCT/EP2012/060568 WO2012168220A1 (fr) 2011-06-09 2012-06-05 Embrayage à friction pouvant être actionné de façon électromagnétique

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DE (2) DE102011050960A1 (fr)
WO (1) WO2012168220A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20130099A1 (it) * 2013-01-24 2014-07-25 Baruffaldi Spa Frizione elettromagnetica per l'azionamento in rotazione di una ventola di veicoli

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3443523C2 (de) 1984-11-29 1996-02-29 Stromag Maschf Zweistufenkupplung für den Antrieb eines Kühllüfters
EP1108913A2 (fr) 1999-12-15 2001-06-20 Mitsubishi Heavy Industries, Ltd. Dispositif d'accouplument électromagnétique pour un compresseur
EP1199484A2 (fr) * 2000-10-20 2002-04-24 INA Wälzlager Schaeffler oHG Embrayage de ventilateur muni d'un palier à contact de roulement à piste intermédiaire flottante
US20030192763A1 (en) * 2000-10-20 2003-10-16 Usui Kokusai Sangyo Kaisha Limited Magnet type fan clutch apparatus
EP1400697A1 (fr) 2002-09-23 2004-03-24 Baruffaldi S.p.A. Dispositif pour commander le refroidissement d'un moteur à combustion interne
US20050205374A1 (en) 2004-03-16 2005-09-22 Baruffaldi S.P.A. Device for transmission of the movement to cooling fans of engines, equipped with means for stopping the fan in its idle condition
US20060086585A1 (en) 2004-10-26 2006-04-27 Baruffaldi S.P.A. Device for transmitting the rotating movement to a driven shaft, in particular for fluid recirculating pumps
DE60314934T2 (de) 2002-04-08 2008-04-10 Baruffaldi S.P.A. Einrichtung zur Steuerung einer Betätigungswelle einer Kühlmittelfluidpumpe in einer Kraftfahrzeugbrennkraftmaschine
DE102008049618A1 (de) * 2008-09-30 2010-04-01 Kendrion Linnig Gmbh Antriebseinheit und elektromagnetisch betätigbare Reibscheibenkupplung
WO2010148507A1 (fr) 2009-06-23 2010-12-29 Magna Powertrain Inc. Embrayage comprenant une rampe à billes

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3443523C2 (de) 1984-11-29 1996-02-29 Stromag Maschf Zweistufenkupplung für den Antrieb eines Kühllüfters
EP1108913A2 (fr) 1999-12-15 2001-06-20 Mitsubishi Heavy Industries, Ltd. Dispositif d'accouplument électromagnétique pour un compresseur
EP1199484A2 (fr) * 2000-10-20 2002-04-24 INA Wälzlager Schaeffler oHG Embrayage de ventilateur muni d'un palier à contact de roulement à piste intermédiaire flottante
US20030192763A1 (en) * 2000-10-20 2003-10-16 Usui Kokusai Sangyo Kaisha Limited Magnet type fan clutch apparatus
DE60314934T2 (de) 2002-04-08 2008-04-10 Baruffaldi S.P.A. Einrichtung zur Steuerung einer Betätigungswelle einer Kühlmittelfluidpumpe in einer Kraftfahrzeugbrennkraftmaschine
EP1400697A1 (fr) 2002-09-23 2004-03-24 Baruffaldi S.p.A. Dispositif pour commander le refroidissement d'un moteur à combustion interne
US20050205374A1 (en) 2004-03-16 2005-09-22 Baruffaldi S.P.A. Device for transmission of the movement to cooling fans of engines, equipped with means for stopping the fan in its idle condition
US20060086585A1 (en) 2004-10-26 2006-04-27 Baruffaldi S.P.A. Device for transmitting the rotating movement to a driven shaft, in particular for fluid recirculating pumps
DE102008049618A1 (de) * 2008-09-30 2010-04-01 Kendrion Linnig Gmbh Antriebseinheit und elektromagnetisch betätigbare Reibscheibenkupplung
WO2010148507A1 (fr) 2009-06-23 2010-12-29 Magna Powertrain Inc. Embrayage comprenant une rampe à billes

Also Published As

Publication number Publication date
DE112012002372A5 (de) 2014-03-06
DE102011050960A1 (de) 2012-12-13

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