EP2412968A2 - Installation de démarrage pour moteurs à combustion interne - Google Patents

Installation de démarrage pour moteurs à combustion interne Download PDF

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Publication number
EP2412968A2
EP2412968A2 EP11172256A EP11172256A EP2412968A2 EP 2412968 A2 EP2412968 A2 EP 2412968A2 EP 11172256 A EP11172256 A EP 11172256A EP 11172256 A EP11172256 A EP 11172256A EP 2412968 A2 EP2412968 A2 EP 2412968A2
Authority
EP
European Patent Office
Prior art keywords
starter
pinion
gear
bearing plate
internal combustion
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Withdrawn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
EP11172256A
Other languages
German (de)
English (en)
Inventor
Stefan Herrmann
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 EP2412968A2 publication Critical patent/EP2412968A2/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Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a starting system for internal combustion engines, in particular of motor vehicles according to the preamble of patent claim 1.
  • the pinion of the starter is meshed via a Hubschraub movement in a ring gear of the internal combustion engine, before the starter motor is switched on to start the internal combustion engine.
  • the starter pinion is axially offset in the rest position on the outer circumference of the ring gear to this.
  • the pinion moves in a slight rotational movement towards the ring gear.
  • a spring is biased with the further toe-in. By biasing the spring, the pinion continues to rotate until it can mesh with the next gap in the sprocket.
  • the main current of the starter motor is usually switched on only from a certain Vorspurweg of the pinion.
  • the Hubschraub movement of the pinion requires a complex costly and complicated mechanics.
  • the Anwarmoment must be transmitted by the longitudinal movement of the pinion in so-called freely ejecting starters with an unfavorable large leverage on the sprocket of the machine. This requires a correspondingly strong pinion bearing for receiving the bearing forces occurring at the starter.
  • EP1 491 764 A2 is a starter system for internal combustion engines in which a Hubschraub movement of the starter pinion is avoided by the starter pinion drives to start the internal combustion engine via a pivotable about the starter axis, meshing with the pinion idler gear of the machine.
  • the axis of the intermediate wheel is thereby pivoted by means of a separate drive member from a rest position to a working position.
  • the idler gear meshing with the starter pinion is in the rest position with the ring gear of the machine disengaged.
  • the intermediate wheel is pivoted about the starter axis, so that it engages in the working position in the ring gear of the machine.
  • the separate drive member acts on a pivot mechanism to which the axis of the intermediate wheel is attached.
  • Similar solutions with a pivotable about the starter axis, meshing with the starter pinion intermediate are from the publications DE PS 396 639 and 402 458
  • the pivot mechanism is not actuated by a separate drive member, but in which the pivot mechanism is connected by means of an electromagnetically switchable coupling with the drive shaft of the starter.
  • the aim is to simplify the starter so that a separate pivoting drive or an electromagnetic clutch are not required for meshing the intermediate gear in the ring gear of the internal combustion engine.
  • the starting system according to the invention for internal combustion engines with the features recited in the characterizing part of claim 1 has the advantage that a frictional connection with the starter motor is used for meshing the intermediate gear in the ring gear of the internal combustion engine, so that an additional adjustment or an electromagnetic clutch is eliminated, which is significantly cheaper , lighter and more compact in construction. It eliminates the Hubschraub mechanism by means of an engagement relay, which smaller moment of inertia are overcome, which allow a starter motor with lower power.
  • the pinion and idler gear are mounted on at least one of their end faces on a bearing plate designed as a pivoting mechanism with a distance from one another such that the teeth of the pinion and the idler gear mesh with one another.
  • a bearing plate designed as a pivoting mechanism with a distance from one another such that the teeth of the pinion and the idler gear mesh with one another.
  • the number of additional components is reduced to a minimum.
  • the swing mechanism is pressed by a return spring against a rest stop on the starter in the rest state of the starter, wherein the restoring force or the restoring torque of the return spring is less than that during the starting process on the pivoting mechanism by the friction joint effective pivoting force or the pivoting moment.
  • the pivoting mechanism is pressed in its Einspur ein in the ring gear against a pivoting stop on the starter.
  • rest stop and pivot stop are arranged on the inner circumference of a housing ring of the starter, on whose outer end face the bearing plate for pinion and idler gear is rotatably mounted about the starter axis.
  • the intermediate gear is mounted on an axially displaceable in the bearing plate axle bolt, at the front end of a disc is fixed and at the rear end a helical compression spring acts, which is supported under pretension on the bearing plate and at rest, the intermediate by means of the disc pressed against the end face against the bearing plate.
  • the friction connection between the bearing plate and idler gear on the bias of the helical compression spring can be adjusted so that the torque for meshing the idler gear is greater than the restoring torque acting on the pivoting mechanism return spring.
  • a further embodiment of the invention is that the starter has a means which cancels the friction connection between the pivot mechanism, in particular bearing plate and pinion or idler gear in the Einspur ein.
  • the pivoting stop is provided with a ramp which cooperates with the rear end face of the axially displaceable in the bearing plate axle bolt, whereby the axle pin when meshing the intermediate wheel in the ring gear of the internal combustion engine is pressed slightly axially outwards and thus the contact pressure between the bearing plate and intermediate wheel is canceled.
  • a particularly advantageous embodiment of the invention is that idler gear and pinion are each mounted in bearing blocks, which are connected to each other via spring elements such that the axes of pinion and idler within their Zahnüberdeckung of a maximum distance from each other in the rest position of the idler during pivoting in the working position are pressed to a minimum distance against the force of the spring elements. Due to this variable tooth coverage between pinion and idler a safe Einspurvorgang is achieved in the ring gear of the machine advantageously by the bearing blocks with the intermediate wheel to the extent that the next tooth of the idler wheel finds a gap of the ring gear in a tooth-on-tooth position , This ensures a smooth engagement of the intermediate wheel during the starting process.
  • FIG. 1 is a schematic representation of a starting system according to the invention for an internal combustion engine 10 shown in motor vehicles. It comprises a starter 11, which contains in its housing a starter motor 12, a gear 13 and a one-way clutch 14. On an output shaft 15 of the starter 11, a pinion 16 is fixed to the front end side, which meshes with an intermediate gear 17. To start the internal combustion engine 10, a ring gear 19 is arranged on the outer circumference of a flywheel 18 of the internal combustion engine 10, which cooperates with the intermediate gear 17.
  • a starter relay 20 arranged directly on the starter 11 switches the starter motor 12 via a switching contact 21 to a positive terminal 22 of a rechargeable battery, not shown, for supplying the motor vehicle electrical system.
  • the starting relay 20 is connected via a start switch 23 to positive potential.
  • the starter motor 12 is turned on via the start switch 23 and the starting relay 20.
  • the intermediate gear 17 is first radially meshed by the starter motor 12 via a frictional connection from the outside into the ring gear 19 and then the ring gear 19 is driven by the pinion 16 via the intermediate gear 17 for starting the internal combustion engine 10.
  • the starting process is terminated with the opening of the start switch 23 and the idler 17 is spoked out of the ring gear 19.
  • FIGS. 2 to 5 The pivoting of the intermediate gear 17 by means of a pivoting mechanism and a friction connection will be explained in more detail below in several embodiments.
  • the intermediate gear 17 is mounted here in a pivoting mechanism 24, which is mounted pivotably about the starter axis X from the illustrated rest position to the ring gear 19.
  • the pivoting mechanism 24 is formed here by two bearing plates 24a, which are arranged on the two end faces of pinion 16 and idler 17. As a result, pinion 16 and intermediate gear 17 are mounted in the bearing plates 24a so that their teeth mesh with each other.
  • the intermediate gear 17 is rotatably supported on a bearing pin 25 whose ends are caulked into corresponding bearing bores of the bearing plates 24a.
  • a frictional connection 26 between the bearing plates 24a and the intermediate 17 is formed.
  • the starter end portion 11a carries a face plate 27 with a recess 28 for the pivot mechanism 24.
  • the swing mechanism 24 is pressed in the resting state of the starter 11 by a return spring 29 against a rest stop 30 in the recess 28 of the face plate 27.
  • the return spring 29 is formed so that its restoring force is less than the frictional force of the friction joint 26 between the bearing plates 24a and the intermediate 17. It is thus achieved that when turning on the starter motor 12, the pinion rotation on the friction joint 26 on the pivoting mechanism of the bearing plates 24a transfers.
  • the pivoting mechanism 24 is pressed in the Einspurwolf of the intermediate gear 17 against the pivot stop 32 by repelling the teeth of the intermediate gear 17 on the tooth flanks of the ring gear 19.
  • the speed of the ring gear 19 is now so high that when the starter motor 12 is switched off, the intermediate gear 17 is driven by the ring gear 19. This leads to the reversal of the torques and the ring gear 19 now actively supports the Ausspuren of the intermediate gear 17.
  • the pivot mechanism 24 After the starting process brings the return spring 29, the pivot mechanism 24 back to the starting position according to FIG. 2 ,
  • the pivoting mechanism 24 consists of two bearing blocks 33 and 34 instead of the bearing plates 24a.
  • the pinion 16 is mounted with the output shaft 15, while the intermediate bearing 17 is mounted with the bearing pin 25 at the upper bearing block 34.
  • the bearing block 34 of the intermediate gear 17 is radially displaceable via guides relative to the bearing block 33 of the pinion 16 in the radial direction of the pinion 16 within the Zahnüberdeckung of pinion 16 and idler 17.
  • Both bearing blocks 33 and 34 are also connected via spring elements 35 such that their axes within the tooth overlap against the force of the prestressed spring elements 35 from a maximum distance a from each other in the rest position of the intermediate gear 17 after FIG.
  • FIG. 6 shows the starter 11 in its rest position, in which the pivot mechanism 24 is pressed by the return spring 29 against the rest stop 30.
  • Pinion 16 and idler 17 have with the maximum distance a of their axes still sufficient for rotation tooth coverage.
  • FIG. 10 shows the starter 11 with the pivoting mechanism 24 in the rest position, in which the intermediate gear 17 is spoked on the ring gear 19 of the internal combustion engine 10, but meshes with the pinion 16.
  • FIG. 11 shows the starter end portion 11a FIG. 10 in longitudinal section with starter motor 12, transmission 13 and freewheel 14 in a simplified representation.
  • the bearing plate 24b has in the region of the end faces of pinion 16 and intermediate 17, a base 37 in which the bearing pin 25 of the intermediate gear 17 is mounted axially displaceable.
  • a disc 38 made of steel or other suitable material is attached.
  • a mushroom head 39 is formed.
  • a helical compression spring 40 is disposed at the rear end 25b, which is supported on the one hand on the mushroom head 39 of the bearing pin 25 and on the other hand under pretension on the bearing plate 24b.
  • FIG. 12 shows a three-dimensional view of the housing ring 36 and the bearing plate 24b from the inside of the housing.
  • a stop base 41 recognizable, which cooperates with a formed on the inner circumference of the housing ring 36 rest stop 30 and a pivot stop 32.
  • the return spring 29 is formed here as a leg spring, one end of the rest stop 30 abuts, while the other end is fixed to the stop base 41 of the bearing plate 24b.
  • the intermediate gear 17 is also coupled via the frictional connection 26 with the bearing plate 24b and pivoted in this way with the pinion rotation, the pivoting mechanism 24 in the radial direction to the ring gear 19.
  • the return spring 29 is stretched further.
  • FIG. 13 the position of the bearing plate 24 b is shown, in which the intermediate gear 17 begins to constructivespuren in the ring gear 19.
  • the return spring 29 is here more strongly tensioned and the abutment base 41 upstream in the circumferential direction bearing pin 25 passes with its mushroom head 39 to the pivot stop 32.
  • the pivot stop 32 is provided with a radially inwardly projecting ramp 42, with the mushroom head 39 at the rear end of the bearing pin 25 cooperates in such a way that with the further rotation of the bearing plate 24 b when engaging the intermediate gear 17th in the ring gear 19 of the internal combustion engine 10 of the bearing pin 25 is pressed by the ramp 42 axially outward. As a result, the contact pressure between the front disc 38 of the bearing pin 25 and the intermediate gear 17 is released and the friction connection 26 of the intermediate gear 17 and the bearing plate 24b is released.
  • FIGS. 14 to 16 show the starter 11 in the Einspur ein the intermediate gear 17.
  • FIG. 14 now lies the stop base 41 of the bearing plate 24b on the pivot stop 32. He is there when turning the internal combustion engine 10 by the rotation of the pinion 16 and the intermediate gear 17 in the direction of arrow A and B, respectively FIG. 15 held by the force acting on the ring gear 19 Anmoskraft during the starting process.
  • FIG. 16 showing a longitudinal section through the front end portion 11a of the starter, the position of the axially displaced bearing pin 25 can be seen, the mushroom head 39 is supported against the force of the helical compression spring 40 on the ramp 42 of the pivoting stop 32.
  • the invention is not limited to the illustrated embodiments, but includes all solutions in which with the switching of the starter motor this via a friction compound, the intermediate first meshes in the ring gear of the engine and then drives the ring gear to start the internal combustion engine via pinion and idler.
  • the pivoting mechanism can also be mounted pivotably outside the starter axis, if a meshing of the insects from the outside into the ring gear of the machine takes place.
  • starters such as so-called mouth starters can be used.
  • the friction connection of the pivot mechanism can also be represented as a slip clutch or the like.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gear Transmission (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP11172256A 2010-07-27 2011-06-30 Installation de démarrage pour moteurs à combustion interne Withdrawn EP2412968A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010038441.0A DE102010038441B4 (de) 2010-07-27 2010-07-27 Startanlage für Brennkraftmaschinen

Publications (1)

Publication Number Publication Date
EP2412968A2 true EP2412968A2 (fr) 2012-02-01

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EP11172256A Withdrawn EP2412968A2 (fr) 2010-07-27 2011-06-30 Installation de démarrage pour moteurs à combustion interne

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EP (1) EP2412968A2 (fr)
CN (1) CN102345545A (fr)
DE (1) DE102010038441B4 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115234421A (zh) * 2022-09-02 2022-10-25 宁波市镇海金腾电器有限公司 一种转动啮合式起动机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015200446A1 (de) 2015-01-14 2016-07-14 Schaeffler Technologies AG & Co. KG Selbsttätig einspurende Startervorrichtung
DE102015014736A1 (de) 2015-11-13 2017-05-18 Daimler Ag Starteinrichtung zum Starten einer Verbrennungskraftmaschine, insbesondere eines Kraftwagens

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE396639C (de) 1920-02-07 1924-06-07 Robert Bosch Akt Ges Elektrische Anlassvorrichtung fuer Verbrennungsmotoren
DE402458C (de) 1920-09-14 1924-09-24 Robert Bosch Akt Ges Anlasselektromotor fuer Kraftmaschinen mit radial einrueckendem Zahnradgetriebe
EP1491764A2 (fr) 2003-06-24 2004-12-29 Mazda Motor Corporation Système de démarrage d'un moteur

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1448926A (en) * 1923-03-20 Iwtebnal-cokbctstiow motor-stakting apparatus
US1521187A (en) * 1919-02-10 1924-12-30 Gustavus A Schanze Internal-combustion-motor-starting apparatus
US1502671A (en) * 1921-06-28 1924-07-29 Remy Electric Co Engine-starter gearing
US1633863A (en) * 1926-03-29 1927-06-28 Sherman L Kelly Engine-starter drive
DE4443674A1 (de) * 1994-12-08 1996-06-13 Fev Motorentech Gmbh & Co Kg Anlaßeinrichtung für eine Kraftmaschine
JP3816330B2 (ja) * 2000-11-16 2006-08-30 三菱電機株式会社 始動電動機
WO2006043579A1 (fr) * 2004-10-20 2006-04-27 Mitsuba Corporation Démarreur avec roue dentée folle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE396639C (de) 1920-02-07 1924-06-07 Robert Bosch Akt Ges Elektrische Anlassvorrichtung fuer Verbrennungsmotoren
DE402458C (de) 1920-09-14 1924-09-24 Robert Bosch Akt Ges Anlasselektromotor fuer Kraftmaschinen mit radial einrueckendem Zahnradgetriebe
EP1491764A2 (fr) 2003-06-24 2004-12-29 Mazda Motor Corporation Système de démarrage d'un moteur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115234421A (zh) * 2022-09-02 2022-10-25 宁波市镇海金腾电器有限公司 一种转动啮合式起动机
CN115234421B (zh) * 2022-09-02 2025-02-14 宁波市镇海金腾电器有限公司 一种转动啮合式起动机

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Publication number Publication date
CN102345545A (zh) 2012-02-08
DE102010038441B4 (de) 2021-05-12
DE102010038441A1 (de) 2012-02-02

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