EP1306549A2 - Démarreur à pignon baladeur pour moteur à combustion interne - Google Patents

Démarreur à pignon baladeur pour moteur à combustion interne Download PDF

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Publication number
EP1306549A2
EP1306549A2 EP02022356A EP02022356A EP1306549A2 EP 1306549 A2 EP1306549 A2 EP 1306549A2 EP 02022356 A EP02022356 A EP 02022356A EP 02022356 A EP02022356 A EP 02022356A EP 1306549 A2 EP1306549 A2 EP 1306549A2
Authority
EP
European Patent Office
Prior art keywords
pinion
shaft
stop
starting device
output shaft
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.)
Withdrawn
Application number
EP02022356A
Other languages
German (de)
English (en)
Other versions
EP1306549A3 (fr
Inventor
Juergen Kugler
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1306549A2 publication Critical patent/EP1306549A2/fr
Publication of EP1306549A3 publication Critical patent/EP1306549A3/fr
Withdrawn legal-status Critical Current

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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
    • F02N15/04—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
    • F02N15/066—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 the starter being of the coaxial 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
    • F02N15/023—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the overrunning type

Definitions

  • the invention relates to a screw drive starting device for starting of internal combustion engines with those specified in the preamble of claim 1 Features.
  • Such a starting device is known from DE 100 16 706 A1.
  • This is based on the basic principle of such starting devices and includes a starter motor, a drive shaft driven by it and an output shaft, usually with the drive shaft via a planetary gear is coupled.
  • a so-called pinion shaft sits on the output shaft, the coupling between these two shafts in screw drive starters via a steep thread.
  • an inhibitor on the pinion shaft With the help of an inhibitor on the pinion shaft, the latter during the turning of the output shaft blocked or at least braked so that together with the moment of inertia of the pinion shaft, this is advanced on the high-helix thread becomes.
  • This is the single-track movement of the on the pinion shaft caused in one piece by the known starter pinion.
  • This single-track movement brings the pinion on the pinion shaft with one corresponding counter pinion on the internal combustion engine.
  • a track spring is opposed to act on the pinion shaft the single-track movement provided after deactivating the Starting device for withdrawing the pinion and thus releasing it from the counter pinion of the internal combustion engine.
  • the stop for limiting the single-track movement as a stop ring on the free end of the output shaft arranged under the area of the pinion. Acts as a counter element narrow ring projection on the inside of the pinion shaft.
  • a further disadvantage of the known starter is that the track spring sits on the outside of the pinion shaft.
  • different bearing rings are necessary, so that overall, the construction is relatively complex and expansive and against is little protected from external influences.
  • the invention has for its object a screw drive starting device to improve the generic type so that the system pinion shaft-output shaft particularly compact with stop and pinion, however can be designed extremely robust.
  • the pinion shaft is a hollow shaft trained that bounds a recording space.
  • This recording room serves different functions, which in combination with each other fulfill the purpose of the invention. This is how the recording room serves on the one hand for the inclusion of the stop for the single-track movement, due to the internal positioning is much more voluminous and therefore more powerful can be designed.
  • the track spring is in the receiving space housed, which is protected. It can preferably be designed as a cylindrical helical compression spring, which with a Grease-filled receiving space is located.
  • This recording space is inserted through its free open end Closed insert part, which has the pinion of the starter.
  • the invention further relates to a pinion unit consisting of the The hollow pinion shaft discussed above and the pinion part seated therein.
  • the starter motor 1 shows a screw drive starting device in its entirety.
  • the starter motor 1 with its housing 2 can be seen from the outside.
  • DE 100 16 706 A1 mentioned at the outset is the design of this starter motor 1 with its stator, rotor and drive shaft driven by it 3 described in detail and does not need to be discussed again here.
  • the drive shaft 3 is via a planetary gear, not shown in FIG. 1 and a freewheel 4 with the output shaft designated as a whole by 5 coupled.
  • This is in a pot-shaped intermediate storage 6 rotatably mounted, which sits non-rotatably in the drive bearing housing 7.
  • Between the output shaft 5 and the intermediate bearing 6 is a roller bearing 8 arranged to support the bearing forces.
  • the over Clamping body 10 is connected to the outer ring 11 of the freewheel.
  • the latter is through planet carrier axes with the planet gears, not shown of the planetary gear mentioned between the drive shaft 3 and Output shaft 5 coupled.
  • the position of the output shaft 5 is relative to the intermediate bearing 6 on the one hand through the end face 12 of the inner ring 9 and on the other hand through a locking ring 13 set.
  • This locking ring 13 follows axially Direction after a constriction 14 of the output shaft 5, the outer part thread 15, into which the pinion shaft 16 with a corresponding inner part thread 17 engages.
  • the pinion shaft 16 is expanded radially as a hollow shaft thus forms a reception space 18 delimited by it.
  • the pinion shaft 16 is rotatable in the drive bearing housing 7 via a Bearing 19 mounted, which is pressed into the drive bearing housing 7 and through a shaft seal 20 is protected.
  • the receiving space 18 On its side facing away from the starter motor 1 is the receiving space 18 open.
  • the actual pinion 21 of the starter having insert 22 inserted under a press fit and in Area of the annular end edge 23 of the wall 24 of the pinion shaft 16 and the flank 25 of the pinion pointing towards the starter motor 1, for example by laser welding.
  • alternative for this are a form-fitting in the direction of rotation by an axial pinning or a snap ring secured connection or even a non-positive fit by pressing the insert 22 into the Pinion shaft 16 possible.
  • Pinion shaft 16 and insert 22 with pinion 21 form a two-part sprocket unit.
  • Stop ring 27 arranged by a snap ring 28 in a groove 29th is fixed in the extension 26. Regarding the stop ring 27 sits Snap ring 28 in a pot-shaped recess 30.
  • the stop ring 27 itself has a relatively solid ring body, the starter motor 1 facing end face forms the stop surface 31. This participates the ring shoulder 32 facing away from the starter motor 1 on the inner part thread 17 together as a stop.
  • the stop ring 27 At its end facing away from the stop surface 31 is the stop ring 27 furthermore with a thin, radially projecting, outwardly projecting Ring projection 33 provided the seat for a likewise in the receiving space 18 arranged, cylindrical helical compression spring 34 - the so-called Track spring of the starter device - forms.
  • This track spring 34 is supported with its other end on the ring shoulder 32 mentioned and is held there under tension. To slide on the track spring 34 on the stop ring 27, this must be slightly expanded, so that the track spring 34 under radial tension on the bearing shoulder 35 the stop ring 27 sits. So there are no special additional ones Precautions, such as undercuts for the formation of a latch or the like, for fixing the track spring during assembly necessary.
  • the aforementioned extension 26 of the output shaft 5 is otherwise beyond front end of the drive bearing housing 7 out and in one concentric guide bore 36 in the insert part 22 of the pinion 21 with its free end 37 guided in the axial and rotational directions.
  • the guide bore 36 itself is closed by a cap 38.
  • a braking device designated as a whole as 39 the also from the prior art document mentioned at the beginning is known.
  • the main part of this braking device 39 is an annular one Brake disc 40, which is on its outer circumference with a sawtooth profile - indicated by the saw teeth 41 recognizable in the sectional view - is provided.
  • This sawtooth profile works with a brake rocker 42 together controlled by the starter motor 1 in engagement with the sawtooth profile 41 can be brought.
  • the brake disc 40 itself is through one of them flanking plate spring 43, also threaded onto the pinion shaft 16 axially loaded against a snap ring 44.
  • the plate spring 43 supports with its radially inner edge 45 on the diameter step 46 between the area of the inner part thread 17 and the receiving space 18 of the pinion shaft 16. With this construction, there are no separate ones Components for the counter bearing of the plate spring 43 required, such as this is the case with the prior art.
  • the receiving space 18 is otherwise with a not shown Provide grease filling.
  • the starter motor 1 activated, whereby the rotational movement of the drive shaft 3 over the Planetary gear, not shown, on the freewheel 4 and the output shaft 5 is transmitted.
  • the brake rocker 42 is pivoted inwards so that it is in Engagement with the sawtooth profile 41 of the brake disc 40 comes.
  • the blocked brake rocker 42 becomes a braking torque via the plate spring 43 exerted on the pinion shaft 16, which together with their moment of inertia leads to a relative rotation when the output shaft 5 rotates of pinion shaft 16 and output shaft 5 to each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Gear Transmission (AREA)
EP02022356A 2001-10-27 2002-10-08 Démarreur à pignon baladeur pour moteur à combustion interne Withdrawn EP1306549A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001153174 DE10153174A1 (de) 2001-10-27 2001-10-27 Schraubtrieb-Startvorrichtung zum Andrehen von Brennkraftmaschinen
DE10153174 2001-10-27

Publications (2)

Publication Number Publication Date
EP1306549A2 true EP1306549A2 (fr) 2003-05-02
EP1306549A3 EP1306549A3 (fr) 2006-05-31

Family

ID=7703989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02022356A Withdrawn EP1306549A3 (fr) 2001-10-27 2002-10-08 Démarreur à pignon baladeur pour moteur à combustion interne

Country Status (3)

Country Link
EP (1) EP1306549A3 (fr)
JP (1) JP2003184719A (fr)
DE (1) DE10153174A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011080118A3 (fr) * 2009-12-29 2011-09-09 Robert Bosch Gmbh Démarreur pour moteur à combustion interne
WO2012031856A1 (fr) * 2010-09-09 2012-03-15 Robert Bosch Gmbh Démarreur de moteur à combustion interne
EP2578870A3 (fr) * 2011-10-07 2013-11-27 Denso Corporation Démarreur

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10016706A1 (de) 2000-04-05 2001-10-11 Bosch Gmbh Robert Startvorrichtung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2287669A (en) * 1941-02-25 1942-06-23 Bendix Aviat Corp Engine starter drive
US2420288A (en) * 1945-04-05 1947-05-06 Bendix Aviat Corp Engine starter drive
US2609696A (en) * 1946-09-26 1952-09-09 Bendix Aviat Corp Engine starter drive
US2536002A (en) * 1949-06-13 1950-12-26 Bendix Aviat Corp Starter gearing for internal-combustion engines
FR67439E (fr) * 1955-01-18 1958-03-07 Bendix Aviat Corp Perfectionnements aux lanceurs pour moteurs à explosion
DE1010784B (de) * 1955-09-03 1957-06-19 Bosch Gmbh Robert Schraubtrieb an Andrehvorrichtungen fuer Brennkraftmaschinen
GB1378512A (en) * 1971-02-10 1974-12-27 Lucas Industries Ltd Nut and gear assemblies for use in engine starter motors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10016706A1 (de) 2000-04-05 2001-10-11 Bosch Gmbh Robert Startvorrichtung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011080118A3 (fr) * 2009-12-29 2011-09-09 Robert Bosch Gmbh Démarreur pour moteur à combustion interne
WO2012031856A1 (fr) * 2010-09-09 2012-03-15 Robert Bosch Gmbh Démarreur de moteur à combustion interne
CN103109077A (zh) * 2010-09-09 2013-05-15 罗伯特·博世有限公司 用于内燃机的起动机
EP2578870A3 (fr) * 2011-10-07 2013-11-27 Denso Corporation Démarreur
US9057350B2 (en) 2011-10-07 2015-06-16 Denso Corporation Starter

Also Published As

Publication number Publication date
JP2003184719A (ja) 2003-07-03
EP1306549A3 (fr) 2006-05-31
DE10153174A1 (de) 2003-05-08

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