WO2012007207A1 - Dispositif de transmission de mouvement rotatif - Google Patents

Dispositif de transmission de mouvement rotatif Download PDF

Info

Publication number
WO2012007207A1
WO2012007207A1 PCT/EP2011/058010 EP2011058010W WO2012007207A1 WO 2012007207 A1 WO2012007207 A1 WO 2012007207A1 EP 2011058010 W EP2011058010 W EP 2011058010W WO 2012007207 A1 WO2012007207 A1 WO 2012007207A1
Authority
WO
WIPO (PCT)
Prior art keywords
combustion engine
gear
internal combustion
transmission device
chain
Prior art date
Application number
PCT/EP2011/058010
Other languages
German (de)
English (en)
Inventor
Bernd Hartmann
Original Assignee
Schaeffler Technologies Gmbh & 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 Schaeffler Technologies Gmbh & Co. Kg filed Critical Schaeffler Technologies Gmbh & Co. Kg
Publication of WO2012007207A1 publication Critical patent/WO2012007207A1/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
    • 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
    • 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
    • F02N15/025—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the friction type
    • 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
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/043—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer
    • F02N15/046—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer of the planetary type
    • 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
    • F02N2250/00—Problems related to engine starting or engine's starting apparatus
    • F02N2250/08—Lubrication of starters; Sealing means for starters

Definitions

  • the invention relates to a rotation transmission device for starting a reciprocating internal combustion engine.
  • the device comprises:
  • an input gear which can be rotationally fixedly connected to a drive wheel of a starter motor of the internal combustion engine via an endlessly circulating traction means, an output wheel which runs coaxially with the input gear and can be connected in a rotationally fixed manner to the crankshaft of the internal combustion engine,
  • JP 2001 153010A also discloses a rotation transmission device in which the rotation of the starter motor is transmitted via a belt to a crankshaft-side input gear and via the locked one-way clutch to the crankshaft connected rotationally fixed to the output gear in order to start the internal combustion engine.
  • the one-way clutch opens, and the rotary unit consisting of the crankshaft and the output wheel overtakes the input wheel.
  • the starter motor is turned off from this point on, so that the drive wheel of the starter motor, the belt and the input gear comprehensive traction drive comes to a standstill.
  • Such a starting device has the advantage over conventional pinion starters in particular that a frequently precom- With a start-stop system that has just been switched off, but still rotating, the engine is essentially noiseless. Because in comparison to the starter pinion, which then must track with high rotational acceleration and corresponding mechanical stress in the still rotating ring gear of the flywheel, the closing of the overrunning clutch takes place at a synchronous speed of input and output gear and low noise.
  • the invention has for its object to provide a rotary transmission device of the type mentioned with the least possible space requirement. Summary of the invention
  • the rotation transmission device further comprises:
  • a housing which can be fastened to the internal combustion engine and, in the fastened state, encloses the chain and in each case at least partially the drive wheel and the input wheel with respect to the surroundings of the internal combustion engine in a lubricant-tight and / or dust-proof manner.
  • the sealing of the housing serving as a chain case to the environment of the internal combustion engine takes place in dependence on which type of lubrication is provided for the chain.
  • the chain circulates, so to speak, dry and self-lubricated in the housing.
  • the chain should be provided with corrosion protection and an initial lubrication, i. once in new condition (and, if necessary, also as part of the maintenance intervals of the internal combustion engine), lubricated, oiled or waxed.
  • an initial lubrication i. once in new condition (and, if necessary, also as part of the maintenance intervals of the internal combustion engine), lubricated, oiled or waxed.
  • the housing may be made of plastic or metal. A metallic housing is then to be protected on both the inside and on the outside against corrosion, to which the known corrosion protection measures offer themselves.
  • the chain circulates, so to speak, wet and externally lubricated in the housing.
  • the chain can pass through an unpressurised lubricant bath in the housing and / or be acted upon by a spray lubrication connected to the lubricant supply of the internal combustion engine.
  • the latter variant appears expedient in particular when the pressure buildup in the lubricant supply takes place so rapidly that the spray lubrication is already active during the starting phase of the internal combustion engine. This can be done for example by means of an electric oil pump, which is operated independently of the crankshaft speed and in which the pressure build-up takes place considerably faster than in a conventional oil pump.
  • external lubrication is a lubricant density Sealing of the housing with the help of suitable sealants compulsory.
  • the chain case of the timing chain drive which already exists and can be structurally adapted to the chain starter can serve as the housing.
  • the known in the prior art belt starter with dry circumferential belt ggfls. can also be replaced by so-called belt-in-oil shoots with oil-resistant, wet-rotating belt.
  • the rotary transmission device should comprise a arranged in the drive sense between the starter motor and its drive gear and preferably a planetary gear that translates the speed of the starter motor in a contrast smaller speed of the drive wheel.
  • the drive torque to be applied by the starter motor can thus be reduced and the starter motor can be dimensioned smaller.
  • the planetary gear whose sun gear rotatably connected to the starter motor and the planetary be rotatably connected to the drive wheel, while the ring gear is rotatably mounted in the housing and optionally can be integrally formed on this.
  • the housing to be adapted to the transmission gearbox is, as described above, depending on the lubrication of the chain seal.
  • the transmission gear can also be arranged outside of the housing and, for example, be an integral part of a flanged to the housing starter motor.
  • Figure 1 shows a first rotation transmission device without transmission gear in a schematic representation
  • Figure 2 shows a second rotary transmission device with transmission gear in a schematic representation
  • FIG 3 shows the detail X in Figures 1 and 2 with structural details.
  • the piston internal combustion engine 1 of a motor vehicle illustrated in FIG. 1 is equipped with an electric starter motor 2 which, for the purpose of starting the internal combustion engine 1, causes its crankshaft 3 to rotate via a rotation transmission device in the form of a chain starter until the internal combustion engine 1 starts.
  • Part of the rotary transmission device is arranged at the free end of the crankshaft 3 chain drive with a drive sprocket 4 from the starter motor 2, an input sprocket 5 from the crankshaft 3 and the drive sprocket 4 and the input sprocket 5 - apart from elasticities - rotatably looping chain 6. This is biased by a known per se and not shown here chain tensioning system.
  • a coaxially with the input gear 5 extending output gear 7 is rotatably connected to the crankshaft 3.
  • Coaxial with the input gear 5 and output gear 7 is an overrunning clutch 8.
  • the output gear 7 is also designed as a pulley 19 for a poly-V belt, the part of a driven by the crankshaft 3 belt drive to drive of ancillaries of the internal combustion engine forms.
  • the ancillaries are, for example, a generator, a coolant pump, an air compressor and / or a power steering pump.
  • the combination of the output gear 7 with the pulley 19 is not compulsory and can also be dispensed with in the case of electrically driven ancillary units, ie without traction drive.
  • a fixed to the output gear 7 Torsionsschwingungsdampfer for the eradication of torsional vibrations of the crankshaft. 3
  • the function of the chain starter is to accelerate the crankshaft 3 from standstill or from low speed out to the speed required for starting the internal combustion engine 1 to be decoupled from the crankshaft rotation after successful starting.
  • the coupling and decoupling is carried out by the one-way clutch 8, which transmits the rotational movement of the input gear 5 to the output gear 7 in the closed state, so that the crankshaft 3 so connected rotatably connected is driven. If, subsequently, the rotational speed of the crankshaft 3 driven by the jerked internal combustion engine 1 exceeds the rotational speed of the input gear 5, the overrunning clutch 8 opens and the output gear 7, which rotates more rapidly with the crankshaft 3, overtakes the input gear 5.
  • the rotation transmission device additionally comprises a transmission 9 arranged in the drive sense between the starter motor 2 and the drive sprocket 4 in the form of a planetary gear which translates the rotational speed of the starter motor 2 into a comparatively smaller rotational speed of the drive wheel 4.
  • the sun gear 10 is rotatably connected to the starter motor 2, and the planetary gear set 1 1 is rotatably connected to the drive wheel 4.
  • the ring gear 12 is non-rotatably arranged in a fixed to the engine V housing 13, which serves as a chain case as in the embodiment of Figure 1 and the wet, ie running in lubricant components of the chain starter with respect to the environment of the internal combustion engine V lubricant surrounds.
  • the bearing of the starter motor 2 with sun gear 10 and the drive wheel 4 takes place in housing bearing points 14 and 15 respectively.
  • the drawn in the figures 1 and 2 detail X is shown in Figure 3 in greater constructive concretization.
  • the input sprocket 5 is mounted by means of a roller bearing 16, here in the form of a single-row deep groove ball bearing, rotatably mounted on the output gear 7, which in turn is bolted to the (not shown here) crankshaft 3.
  • the freewheel clutch 8 designed as a roller freewheel is arranged radially between an outer casing 17 of the input gear 5 and an inner casing 18 of the output gear 7, the outer casing 17 being provided with clamping ramps for the rollers of the roller freewheel 8 which are clamped therein.
  • the other known types of overrunning clutch such as a pawl freewheel or a sprag freewheel can be used.
  • the designed as a pulley for the poly-V-belt portion 19 of the output gear 7 is space-saving manner at the same axial height as the roller lenelaufier 8, namely radially opposite the inner shell 18th
  • the input gear 5 is mounted directly on the engine block of the internal combustion engine concentric with the crankshaft.
  • the rolling bearing of the input gear 5 can also be replaced by a more cost-effective sliding bearing, since then limit the relative rotation of the bearing partner (input gear and engine block) to the starting phase of the internal combustion engine.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pulleys (AREA)
  • General Details Of Gearings (AREA)

Abstract

L'invention concerne un dispositif de transmission de mouvement rotatif destiné à la mise en marche d'un moteur à combustion interne à pistons (1, 1'). Ce dispositif de transmission de mouvement rotatif comprend une roue d'entrée (5) qui peut être reliée de manière solidaire en rotation avec une roue d'entraînement (4) d'un moteur de démarreur (2) d'un moteur à combustion interne par l'intermédiaire d'un lien souple tournant en continu, une roue de sortie (7) qui est coaxiale à la roue d'entrée et qui peut être reliée de manière solidaire en rotation avec le vilebrequin (3) du moteur à combustion interne, et un accouplement à roue libre (8) coaxial à la roue d'entrée et à la roue de sortie, cet accouplement étant monté radialement entre une enveloppe externe (17) de la roue d'entrée et une enveloppe interne (18) de la roue de sortie. La roue d'entrée entraîne la roue de sortie lorsque l'accouplement à roue libre est fermé et l'accouplement à roue libre s'ouvre lorsque la roue de sortie tourne plus vite que la roue d'entrée, la roue d'entrée devant être une roue à chaîne pour le lien souple qui est une chaîne (6).
PCT/EP2011/058010 2010-07-12 2011-05-18 Dispositif de transmission de mouvement rotatif WO2012007207A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010026859 DE102010026859A1 (de) 2010-07-12 2010-07-12 Drehübertragungsvorrichtung
DE102010026859.3 2010-07-12

Publications (1)

Publication Number Publication Date
WO2012007207A1 true WO2012007207A1 (fr) 2012-01-19

Family

ID=44119092

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/058010 WO2012007207A1 (fr) 2010-07-12 2011-05-18 Dispositif de transmission de mouvement rotatif

Country Status (2)

Country Link
DE (1) DE102010026859A1 (fr)
WO (1) WO2012007207A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015208637B4 (de) 2015-05-11 2018-06-21 Bayerische Motoren Werke Aktiengesellschaft Antriebsvorrichtung mit einer Verbrennungskraftmaschine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2629681A1 (de) * 1975-07-01 1977-01-27 Facet Enterprises Durchdrehanlasser
GB2016603A (en) * 1978-03-13 1979-09-26 Facet Enterprises Starter drive device
JP2001153010A (ja) 1999-11-25 2001-06-05 Honda Motor Co Ltd エンジンの始動装置
EP1293665A2 (fr) * 2001-09-13 2003-03-19 Denso Corporation Démarreur de moteur avec embrayage pour entraíner le moteur
DE102005041046A1 (de) 2004-08-31 2006-04-06 Denso Corp., Kariya Leistungsübertragungsvorrichtung zur Verwendung mit einem Verbrennungsmotor und Verfahren zur Herstellung einer Riemenscheibeneinheit
DE102004058772A1 (de) 2004-12-07 2006-07-13 Schaeffler Kg Zugmitteltrieb für ein Nebenaggregat eines Verbrennungsmotors
DE102005019695A1 (de) * 2005-04-28 2006-11-02 Schaeffler Kg Antriebsmotor eines Kraftfahrzeuges
US20080026893A1 (en) * 2006-07-27 2008-01-31 Aisin Ai Co., Ltd. Chain-type driving force transmitting apparatus
DE102008064341A1 (de) 2008-12-20 2010-07-01 Audi Ag Riemenscheibe mit Freilauf und Torsionsschwingungsdämpfer sowie Riemenstarter für eine Brennkraftmaschine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2629681A1 (de) * 1975-07-01 1977-01-27 Facet Enterprises Durchdrehanlasser
GB2016603A (en) * 1978-03-13 1979-09-26 Facet Enterprises Starter drive device
JP2001153010A (ja) 1999-11-25 2001-06-05 Honda Motor Co Ltd エンジンの始動装置
EP1293665A2 (fr) * 2001-09-13 2003-03-19 Denso Corporation Démarreur de moteur avec embrayage pour entraíner le moteur
DE102005041046A1 (de) 2004-08-31 2006-04-06 Denso Corp., Kariya Leistungsübertragungsvorrichtung zur Verwendung mit einem Verbrennungsmotor und Verfahren zur Herstellung einer Riemenscheibeneinheit
DE102004058772A1 (de) 2004-12-07 2006-07-13 Schaeffler Kg Zugmitteltrieb für ein Nebenaggregat eines Verbrennungsmotors
DE102005019695A1 (de) * 2005-04-28 2006-11-02 Schaeffler Kg Antriebsmotor eines Kraftfahrzeuges
US20080026893A1 (en) * 2006-07-27 2008-01-31 Aisin Ai Co., Ltd. Chain-type driving force transmitting apparatus
DE102008064341A1 (de) 2008-12-20 2010-07-01 Audi Ag Riemenscheibe mit Freilauf und Torsionsschwingungsdämpfer sowie Riemenstarter für eine Brennkraftmaschine

Also Published As

Publication number Publication date
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