WO2004065811A1 - Embrayage et generatrice demarreur comprenant cet embrayage - Google Patents

Embrayage et generatrice demarreur comprenant cet embrayage Download PDF

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Publication number
WO2004065811A1
WO2004065811A1 PCT/NL2004/000052 NL2004000052W WO2004065811A1 WO 2004065811 A1 WO2004065811 A1 WO 2004065811A1 NL 2004000052 W NL2004000052 W NL 2004000052W WO 2004065811 A1 WO2004065811 A1 WO 2004065811A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
rotation member
clutch
armature
starter
Prior art date
Application number
PCT/NL2004/000052
Other languages
English (en)
Inventor
Bernardus Gerardus Van Leeuwen
Carole Girardin
Craig James Mcfarland
Original Assignee
Ab Skf
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 Ab Skf filed Critical Ab Skf
Publication of WO2004065811A1 publication Critical patent/WO2004065811A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
    • F02N15/023—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the overrunning type
    • 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
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/04—Freewheels or freewheel clutches combined with a clutch for locking the driving and driven members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators

Definitions

  • the invention is related to a clutch device, comprising a shaft, a rotation member, such as a pulley, which is coaxially mounted on said shaft, and a one-way clutch for providing a freely rotatable condition when the shaft and the rotation member are rotated with respect to each other in a first relative rotational direction, and for providing a fixation between the shaft and the rotation member when they are rotated with respect to each other in the opposite relative rotational direction.
  • Such a clutch device is known. It is applied in several fields, for instance in connection with a generator for an internal combustion engine.
  • a generator for an internal combustion engine.
  • the generator is coupled to the engine through a belt drive
  • variations in the engine torque cause belt vibrations and hence a reduction in belt life.
  • the one-way clutch in the clutch device however, the transmission of vibrations from the engine, e,g. due to engine acyclism, is reduced.
  • the reverse torque resulting from such phenomena is limited, which has a favourable effect on belt behaviour.
  • the prior art device however has the disadvantage that it cannot be applied in combination with a combined starter and generator.
  • the one-way clutch in fact prevents to transmit the starter torque to the engine, as it allows a free relative rotation in the drive direction of the starter.
  • the object of the invention is therefore to provide a clutch device which can also be applied in comiection with a combined starter and generator.
  • a means of a locking clutch for providing a fixation between the shaft and the rotation member, said locking clutch preventing mutual rotations between the shaft and the pulley in both relative rotational directions.
  • the locking clutch For engine starting the locking clutch is engaged, effectively disabling the one-way clutch, allowing torque to be transmitted from the starter/generator device acting as a starter to the engine.
  • said locking clutch can be disengaged, which then enables operation of the one way clutch, allowing the transmission of torque from the engine to the starter/generator device now acting as generator, but preventing the transmission of torque from the starter/generator device to the engine, thereby preventing belt vibration due to engine acyclism.
  • the locking clutch is of an electromagnetic type.
  • the locking clutch may comprise a first armature which is axially slidably and rotationally fixed to the shaft or the rotation member, and a second armature which is fixedly connected to the other of said shaft and rotation member.
  • the coupling means of these said armatures may be provided by either friction plates or meshing teeth.
  • the clutch device comprises a locking clutch for providing a fixation between the shaft and the rotation member, said locking clutch, when engaged, enabling direct torque transmission from the shaft to the rotation member, the one-way clutch being disabled.
  • the invention is furthermore related a belt driven starter/generator device, comprising a starter/generator provided with a housing, a stator connected to the housing, and a rotor having a rotor shaft rotatably supported with respect to the housing, as well as a clutch device as described before, said clutch device comprising a rotation member which is rotatably mounted on the rotor shaft, and a one-way clutch for providing a freely rotatable condition when the rotor shaft and the rotation member are rotated with respect to each other in a first relative rotational direction, and for providing a fixation between the rotor shaft and the rotation member when they are rotated with respect to each other in the opposite relative rotational direction, as well as a locking clutch for providing a fixation between the rotor shaft and the rotation member, said locking clutch preventing mutual rotations between the rotor shaft and the rotation member in both relative rotational detections.
  • Said locking clutch comprises a first armature which is axially slidably and rotationally fixed to the shaft or the rotation member, a second armature which is fixedly connected to the other of said shaft and rotation member, an electromagnetic coil connected to the housing for generating a electromagnetic flux under the influence of which the armatures are attracted towards each other as well as coupling means associated with said armatures, said coupling means engaging each other when the electromagnetic coil is energized.
  • the rotation member at its side facing the housing carries the second armature, and the electromagnetic coil extending next to said second armature.
  • the electromagnetic coil is comprised of a flux carrying stator that may be U-shaped in radial cross-section, and a radially wound electromagnetic magnetic coil extending into the recess defined by the U-shaped stator.
  • first armature and the connecting bridge of the second armature have facing surfaces which may be provided with friction plates or meshing teeth.
  • the figure shows a clutch device 1 in combination with a starter/generator device 2 only the front cap 3 of which is shown.
  • the clutch device comprises a shaft 4 and a pulley 5 which is rotatable with respect to the shaft 4 in one direction only. This rotation between the shaft 4 and the pulley 5 is obtained by means of the one-way clutch 6 which in the present embodiment is carried out as a wrap spring. Other oneway clutches, such as with spraques, are possible as well.
  • a bearing 19 is used to support the pulley on the shaft and allow rotation as dictated by the operation of the one-way clutch.
  • the starter/generator device shaft which is not shown, is to be connected to the shaft 4 of the clutch device 1.
  • torque must be transferred from the starter/generator device to engine.
  • the one-way clutch 6 does not pass torque from starter/generator device to the engine, it must be temporarily locked-out to enable engine starting.
  • This temporary lock-out is achieved by enabling the electromagnetic locking clutch 7 so that shaft 4 and pulley 5 are locked with no relative motion between them. Starting torque can then be transferred from the pulley 5 via the belt (not shown) to the internal combustion engine in question. This means that during the brief starting period there may be belt tension reversals.
  • the locking clutch 7 comprises a first armature 8 which is fixed on a sleeve 9.
  • the sleeve 9 is axially slidable but non-rotatably fixed to the shaft 4 by means of the key/groove connection 10.
  • a second armature 12 is fixedly connected to the pulley 1.
  • the locking clutch comprises an electromagnetic actuator having a U- shaped stator 13 fixed through a bracket 18 to the front cap 3, as well as a coil 15 which fits within the recess of said stator 13.
  • a flux path 14 is created causing the first armature 8 together with sleeve 9 to be attracted towards the second armature 12.
  • the facing surfaces 16 respectively 17 of the first armature 8 and the second armature 12 are provided with coupling means, for example friction plates or engaging teeth and as a result the pulley 5 is rigidly fixed to the shaft 4.
  • the coil is de-energized and the first armature 8 is pushed out of contact with second armature 12 by a spring 11.
  • the one-way clutch is thereby enabled and the starter/generator device now operates as a generator.
  • the shaft 4 through the one-way clutch 6 rotates the pulley 5.
  • the pulley 5 is connected to the internal combution engine in question via a belt (not shown).
  • the one-way clutch allows torque to pass from engine to starter/generator device, but does not let torque pass from starter/generator device to engine. In this way the one-way clutch operates in generator mode to eliminate belt tension reversals and improve belt life.
  • the rotation member has been described as a pulley, other embodiments are possible as well such as a tooth gear or a toothed belt gear.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

Selon cette invention, un dispositif de poulie comprend un arbre (4), une poulie (5) montée rotative sur cet arbre et un embrayage à roue libre (6) permettant d'obtenir un fonctionnement en rotation libre lorsque l'arbre et la poulie tournent l'un par rapport à l'autre dans un premier sens de rotation relatif et d'obtenir une fixation entre l'arbre et la poulie lorsqu'ils tournent l'un par rapport à l'autre dans le sens de rotation relatif opposé. Un embrayage de verrouillage (7) sert de fixation entre l'arbre et la poulie, lequel embrayage de verrouillage empêche toute rotation mutuelle entre l'arbre et la poulie dans les deux sens de rotation relatifs.
PCT/NL2004/000052 2003-01-22 2004-01-22 Embrayage et generatrice demarreur comprenant cet embrayage WO2004065811A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1022458A NL1022458C2 (nl) 2003-01-22 2003-01-22 Riemschijfinrichting en startmotor/generator welke een dergelijke riemschijf omvat.
NL1022458 2003-01-22

Publications (1)

Publication Number Publication Date
WO2004065811A1 true WO2004065811A1 (fr) 2004-08-05

Family

ID=32768718

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2004/000052 WO2004065811A1 (fr) 2003-01-22 2004-01-22 Embrayage et generatrice demarreur comprenant cet embrayage

Country Status (2)

Country Link
NL (1) NL1022458C2 (fr)
WO (1) WO2004065811A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007003052A1 (fr) * 2005-07-05 2007-01-11 Litens Automotive Partnership Decoupleur a roue libre avec mecanisme de blocage
WO2007121582A1 (fr) * 2006-04-26 2007-11-01 Litens Automotive Partnership Isolateur unidirectionnel pour dispositifs a couple eleve
US7712592B2 (en) 2003-12-09 2010-05-11 Litens Automotive Partnership Spring travel limiter for overrunning alternator decoupler
WO2010079386A1 (fr) * 2009-01-07 2010-07-15 Aktiebolaget Skf Dispositif d'embrayage et dispositif alternateur-démarreur comportant un tel dispositif d'embrayage
WO2011150912A1 (fr) * 2010-06-04 2011-12-08 Schaeffler Technologies Gmbh & Co. Kg Poulie à courroie de vilebrequin
WO2012010372A1 (fr) * 2010-07-19 2012-01-26 Robert Bosch Gmbh Embrayage électromagnétique pour relier un moteur à vapeur à un moteur à combustion interne
WO2012083988A1 (fr) 2010-12-22 2012-06-28 Aktiebolaget Skf Agencement d'embrayage
WO2012152757A1 (fr) 2011-05-06 2012-11-15 Aktiebolaget Skf Unité de poulie pour transfert bidirectionnel d'un couple
JP2018172115A (ja) * 2017-03-30 2018-11-08 黄永松 クラッチ型自転車用電力駆動装置
EP3555446A4 (fr) * 2016-12-15 2020-08-12 GE Aviation Systems LLC Démarreur pneumatique pourvu d'un découpleur

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838938A (en) * 1955-11-14 1958-06-17 Curtiss Wright Corp Engine starter mechanisms
US2951570A (en) * 1958-11-25 1960-09-06 Gen Electric Starter decoupling means
US4020935A (en) * 1975-07-01 1977-05-03 Facet Enterprises, Inc. Direct cranking starter drive
US5542514A (en) * 1993-06-10 1996-08-06 Ntn Corporation Rotational transmission device
DE10057516A1 (de) * 2000-05-09 2001-11-22 Mitsubishi Electric Corp Die Rotation übertragende Vorrichtung, die eine Einwegkupplung beinhaltet
US20020025880A1 (en) * 2000-08-29 2002-02-28 Mitsubishi Denki Kabushiki Kaisha Automotive AC rotating machine
US20020117860A1 (en) * 1998-09-09 2002-08-29 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Power train for a motor vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2514424B1 (fr) * 1981-10-14 1986-07-18 Marchal Equip Auto Vehicule automobile ayant un demarreur lie au moteur par une roue libre

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2838938A (en) * 1955-11-14 1958-06-17 Curtiss Wright Corp Engine starter mechanisms
US2951570A (en) * 1958-11-25 1960-09-06 Gen Electric Starter decoupling means
US4020935A (en) * 1975-07-01 1977-05-03 Facet Enterprises, Inc. Direct cranking starter drive
US5542514A (en) * 1993-06-10 1996-08-06 Ntn Corporation Rotational transmission device
US20020117860A1 (en) * 1998-09-09 2002-08-29 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Power train for a motor vehicle
DE10057516A1 (de) * 2000-05-09 2001-11-22 Mitsubishi Electric Corp Die Rotation übertragende Vorrichtung, die eine Einwegkupplung beinhaltet
US20020025880A1 (en) * 2000-08-29 2002-02-28 Mitsubishi Denki Kabushiki Kaisha Automotive AC rotating machine

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE45156E1 (en) 2003-12-09 2014-09-23 Litens Automotive Partnership Decoupler with spring travel limiter
US7712592B2 (en) 2003-12-09 2010-05-11 Litens Automotive Partnership Spring travel limiter for overrunning alternator decoupler
US8047920B2 (en) 2003-12-09 2011-11-01 Litens Automotive Partnership Decoupler with spring travel limiter
US8006819B2 (en) 2005-07-05 2011-08-30 Litens Automotive Partnership Overrunning decoupler with locking mechanism
WO2007003052A1 (fr) * 2005-07-05 2007-01-11 Litens Automotive Partnership Decoupleur a roue libre avec mecanisme de blocage
WO2007121582A1 (fr) * 2006-04-26 2007-11-01 Litens Automotive Partnership Isolateur unidirectionnel pour dispositifs a couple eleve
US8021253B2 (en) 2006-04-26 2011-09-20 Litens Automotive Inc. One-way isolator for high torque devices
WO2010079386A1 (fr) * 2009-01-07 2010-07-15 Aktiebolaget Skf Dispositif d'embrayage et dispositif alternateur-démarreur comportant un tel dispositif d'embrayage
WO2011150912A1 (fr) * 2010-06-04 2011-12-08 Schaeffler Technologies Gmbh & Co. Kg Poulie à courroie de vilebrequin
WO2012010372A1 (fr) * 2010-07-19 2012-01-26 Robert Bosch Gmbh Embrayage électromagnétique pour relier un moteur à vapeur à un moteur à combustion interne
CN103003588A (zh) * 2010-07-19 2013-03-27 罗伯特·博世有限公司 用于连接蒸汽机与内燃机的电磁开关离合器
US9080658B2 (en) 2010-07-19 2015-07-14 Robert Bosch Gmbh Electromagnetic clutch for connecting a steam engine to a combustion engine
DE112010006078T5 (de) 2010-12-22 2013-12-05 Aktiebolaget Skf Kupplungsanordnung
WO2012083988A1 (fr) 2010-12-22 2012-06-28 Aktiebolaget Skf Agencement d'embrayage
WO2012152757A1 (fr) 2011-05-06 2012-11-15 Aktiebolaget Skf Unité de poulie pour transfert bidirectionnel d'un couple
EP3555446A4 (fr) * 2016-12-15 2020-08-12 GE Aviation Systems LLC Démarreur pneumatique pourvu d'un découpleur
JP2018172115A (ja) * 2017-03-30 2018-11-08 黄永松 クラッチ型自転車用電力駆動装置

Also Published As

Publication number Publication date
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