EP2428674B1 - Freilaufeinrichtung in einer Startvorrichtung für Brennkraftmaschinen - Google Patents

Freilaufeinrichtung in einer Startvorrichtung für Brennkraftmaschinen Download PDF

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Publication number
EP2428674B1
EP2428674B1 EP11178038.3A EP11178038A EP2428674B1 EP 2428674 B1 EP2428674 B1 EP 2428674B1 EP 11178038 A EP11178038 A EP 11178038A EP 2428674 B1 EP2428674 B1 EP 2428674B1
Authority
EP
European Patent Office
Prior art keywords
carrier
transmission
overrunning clutch
clutch device
planet
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.)
Not-in-force
Application number
EP11178038.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2428674A1 (de
Inventor
Stephan Kaske
Michael Stahl
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.)
SEG Automotive Germany GmbH
Original Assignee
SEG Automotive Germany 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 SEG Automotive Germany GmbH filed Critical SEG Automotive Germany GmbH
Publication of EP2428674A1 publication Critical patent/EP2428674A1/de
Application granted granted Critical
Publication of EP2428674B1 publication Critical patent/EP2428674B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/062—Starter drives
    • 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
    • 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
    • F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
    • F02N15/026—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the centrifugal 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

Definitions

  • the invention relates to a freewheel device in a starting device for internal combustion engines according to the preamble of claim 1.
  • a freewheel device for starting devices, which is designed as a stationary freewheel and is not axially displaced during the freewheel function.
  • the freewheel device is arranged between an armature shaft and an output shaft, which is the carrier of a single-pinion, which is brought into engagement with a ring gear of the internal combustion engine to start the internal combustion engine.
  • the movement transmission between the armature shaft and the output shaft takes place via a planetary gear, which comprises a sun gear which is fixedly connected to the armature shaft and which meshes with planet gears which are mounted on a planet carrier, which is part of a driver of the freewheel device.
  • Another section of the driver is connected to a hub of the output shaft via clamping rollers, the clamping rollers for transmitting the rotary movement between the armature and the output shaft being received in wedge-shaped receiving pockets of a driver section and being pushed out of the receiving pockets for the freewheeling function.
  • the planet gears are supported on the driver via axle bolts that are received in the driver through bores.
  • the axle bolts are pressed into the holes, which requires an exact shape of the hole and a narrow diameter tolerance.
  • the driver must have sufficient strength to accommodate the axle bolts or the forces and moments that occur during operation.
  • the US 2004/180746 A1 discloses a starting device for an internal combustion engine, which is provided with a freewheel device which has a drive plate and a planetary gear with a gear carrier which is the carrier of planet gears.
  • the gear carrier is supported on the drive plate by means of a spring device with a friction plate and a spring element. This is intended to alleviate axial impulses emanating from the drive plate during a recoil.
  • the invention is based on the object of stably designing a freewheel device in a starting device using simple structural measures.
  • the freewheel device according to the invention is used in starting devices for internal combustion engines, via which the internal combustion engine is started in a vehicle.
  • the starting device has an electric drive motor which drives an armature shaft which is connected via a gearbox to an output shaft on which a starter pinion is seated.
  • the starter pinion is brought into engagement with a ring gear on the internal combustion engine for starting.
  • a section of the driver forms a gear carrier of the gear between the armature shaft and the output shaft.
  • a driver disk connected to the output shaft and the gear carrier, which are both part of the driver form separate components that are coupled to transmit torque.
  • the driver thus comprises at least two separate, independently formed components, which are connected to one another in a suitable manner in order to transmit the rotary movement emanating from the armature shaft to the output shaft via the transmission and the two components of the driver lying directly axially against one another .
  • the design as components that are designed independently of one another has the advantage that each component, i.e. both the gear carrier and the drive plate, can be adapted to the respective application in the best possible way, both with regard to the design and the choice of material.
  • the torque-transmitting coupling ensures that the rotary motion is transmitted to the output shaft and the starter pinion.
  • the gear carrier and the drive plate are made of different materials, on the one hand to meet the requirements for sufficient strength and, on the other hand, an inexpensive one To enable production and possibly also assembly.
  • the strength of each component can be adapted to the respective requirement.
  • the gear carrier can consist of a less high-strength material, for which sintered material, plastic or possibly also metal is suitable.
  • driver disk can be used for both right-handed and left-handed freewheels without changing the geometry.
  • the direction of the freewheel can be reversed if the mounting position is reversed by 180 °.
  • the gear carrier and the drive plate are connected to one another in a rotationally fixed manner. Basically, however, a coupling between these components with play or a torsion spring option is sufficient to transmit the torque that is required for driving the starter pinion.
  • the connection between the gearbox carrier and drive plate is made, for example, by pressing or toothing.
  • the gear is designed as a planetary gear, which comprises a sun gear, which is non-rotatably connected to the armature shaft, and planet gears on a planet carrier, the planet gears meshing with the sun gear.
  • the planet carrier is formed by the gear carrier of the driver.
  • the planet gears are received in bores in the planet carrier via axle bolts.
  • the bores can completely penetrate the planet carrier, the planet carrier preferably having a sufficient thickness, on the one hand, for secure storage to ensure the planet gears via the axle bolts and on the other hand to ensure sufficient strength to absorb the forces and moments that arise.
  • the axle bolts can be pressed into the holes, which requires a close diameter tolerance for a secure connection of the axle bolts and planet carrier.
  • the planet carrier is made of plastic, sintered steel or a suitable metal, the axle bolts can be pressed into the bores without the risk of the planet carrier being distorted.
  • the design as a through hole also allows easier insertion of the axle bolts.
  • FIG. 1 A starting device 1 for starting an internal combustion engine is shown.
  • the starting device 1 comprises an armature shaft 3, which is driven by an electric motor, not shown, and an output shaft 4, which is the carrier of a starter pinion 5, which is adjustable between an axially retracted position and an axially advanced position, in which the starter pinion has a ring gear an internal combustion engine is engaged.
  • a freewheel device 2 is located between the armature shaft 3 and the output shaft 4, which ensures that only motion is transmitted from the starting device 1 to the starting ring of the internal combustion engine, but not in the opposite direction. This ensures that when the internal combustion engine starts and accelerates to a higher speed than the starter pinion, an impermissibly high acceleration from the starter ring to the starter pinion is prevented.
  • the freewheel device 2 is connected to the armature shaft 3 via a planetary gear 6.
  • the planetary gear 6 comprises a sun gear 7, which is seated on the armature shaft 3 in a rotationally fixed manner, and a plurality of planet gears 8 on the driver side, which are mounted on axle pins 9 on a planet carrier 11 of the driver 10 and are in engagement with the sun gear 7.
  • the driver 10 also includes a driver disk 12, via which the movement or torque is transmitted to the output shaft 4.
  • the drive plate 12 how Fig. 1 combined with Fig. 2 to see a wedge-shaped receiving pocket for receiving a roller or roller 14, which rests on the outer surface of a hub 15, which is made in one piece with the output shaft 4.
  • the roller or roller 14 is pressed via a spring element 16 into the wedge-shaped receiving pocket in the drive plate 12.
  • the driver 10 is set in rotary motion via the armature shaft 3 and the planetary gear 6, which is transmitted to the hub 15 for driving the output shaft 4 via the rollers 14, of which several are present in receiving pockets distributed over the circumference.
  • the rollers 14 are moved out of the receiving pockets, as a result of which the power transmission path is interrupted.
  • the planet carrier 11 and the drive plate 12 of the driver 10 are designed as two separate components that lie directly against each other on the end face. Planet carrier 11 and drive plate 12 are in particular coupled to one another in a rotationally fixed manner, for example by pressing or toothing.
  • the drive plate 12 expediently consists of a high-strength material such as sintered steel or other steel.
  • the planet carrier 11, in which the bores for receiving the axle bolts 9 are made on the other hand, consists of a softer material such as e.g. Sintered material, plastic or a metal that allows the axle bolts 9 to be pressed in with a small tolerance.
  • the bores for receiving the axle bolts 9 expediently extend completely through the planet carrier 11 in the axial direction.
  • the driver 10 with the planet carrier 11 and the driver plate 12 is covered by a cover sleeve 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Retarders (AREA)
  • Transmission Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP11178038.3A 2010-09-09 2011-08-19 Freilaufeinrichtung in einer Startvorrichtung für Brennkraftmaschinen Not-in-force EP2428674B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010040531A DE102010040531A1 (de) 2010-09-09 2010-09-09 Freilaufeinrichtung in einer Startvorrichtung für Brennkraftmaschinen

Publications (2)

Publication Number Publication Date
EP2428674A1 EP2428674A1 (de) 2012-03-14
EP2428674B1 true EP2428674B1 (de) 2020-06-24

Family

ID=44773968

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11178038.3A Not-in-force EP2428674B1 (de) 2010-09-09 2011-08-19 Freilaufeinrichtung in einer Startvorrichtung für Brennkraftmaschinen

Country Status (4)

Country Link
EP (1) EP2428674B1 (zh)
CN (1) CN102536579B (zh)
DE (1) DE102010040531A1 (zh)
HU (1) HUE050649T2 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012216143B4 (de) * 2012-09-12 2021-03-18 Seg Automotive Germany Gmbh Startvorrichtung für eine Brennkraftmaschine
DE102013020327B4 (de) * 2013-12-05 2022-05-25 Borgwarner Inc. Starterfreilauf und Freilaufanordnung mit einem solchen Starterfreilauf
DE102019114455A1 (de) * 2019-05-29 2020-12-03 Seg Automotive Germany Gmbh Freilaufeinrichtung für einen Starter und Starter für eine Brennkraftmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090205464A1 (en) * 2008-02-14 2009-08-20 Denso Corporation Starter including one-way clutch and method of manufacturing clutch outer of one-way clutch

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4638684A (en) * 1983-10-24 1987-01-27 Luk Lamellen Und Kupplungsbau Gmbh Assembly for taking up and compensating for torque-induced shocks
JPH0320141A (ja) * 1989-06-14 1991-01-29 Mitsubishi Electric Corp 遊星歯車減速装置
JPH05332233A (ja) * 1992-05-29 1993-12-14 Mitsubishi Electric Corp 同軸形始動電動機
JP3555245B2 (ja) * 1995-06-01 2004-08-18 株式会社デンソー スタータ
DE19616666B4 (de) 1996-04-26 2004-08-12 Robert Bosch Gmbh Freilaufeinrichtung für Andrehvorrichtungen von Brennkraftmaschinen
JP4174820B2 (ja) * 2003-03-11 2008-11-05 株式会社デンソー スタータ
EP2017497A1 (de) * 2007-06-20 2009-01-21 Ford Global Technologies, LLC Verfahren zum Starten einer mit einem geteilten Schwungrad ausgestatteten Brennkraftmaschine und Brennkraftmaschine zur Durchführung eines derartigen Verfahrens
DE102010028415B4 (de) * 2010-04-30 2020-02-13 Seg Automotive Germany Gmbh Freilauf mit integrierter Dämpfung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090205464A1 (en) * 2008-02-14 2009-08-20 Denso Corporation Starter including one-way clutch and method of manufacturing clutch outer of one-way clutch

Also Published As

Publication number Publication date
EP2428674A1 (de) 2012-03-14
CN102536579A (zh) 2012-07-04
CN102536579B (zh) 2016-05-11
HUE050649T2 (hu) 2020-12-28
DE102010040531A1 (de) 2012-03-15

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