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
  • F02N15/062—Starter drives
  • F02N15/065—Starter drives with blocking means
• • 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
  • F02N15/067—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 comprising an electro-magnetically actuated lever
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T74/00—Machine element or mechanism
  • Y10T74/13—Machine starters
  • Y10T74/131—Automatic
  • Y10T74/137—Reduction gearing

Definitions

• drives are used, which are fed with a separate from the fuel supply power supply.
• Most DC motors are used for this purpose, the drive pinion first engages in the ring gear of the internal combustion engine, then to spin the engine. This is done by means of starters according to the push-screw principle. After the end of the starting process, the pinion moves back out of the ring gear of the internal combustion engine.
• start-stop systems in motor vehicles requires an extended requirement for the starting system and thus also a functionality extension of previously used starters.
• the classic principle of the starters used so far is not possible with the classic principle of the starters used so far.
• the starter can be enabled to engage in the sprocket already during the outflow of the internal combustion engine, so that the above-mentioned functionality is fulfilled.
• the starting device comprises a starter relay connectable to a voltage source and the internal combustion engine for cranking engageable star termotor.
• a control of the starter relay and / or the starter motor via an electronic control unit. This controls the starter relay and / or the starter motor associated semiconductor power output stages such that at least in a start-stop operation of the internal combustion engine, the starter relay in the stop state of the internal combustion engine has its Einspurwolf.
• a starter with permanent engagement for an internal combustion engine includes a ring gear that is constantly engaged with a pinion connected to an electric motor.
• a flywheel includes a one-way clutch configured to transmit the torque generated by the electric motor from the ring gear to the flywheel to start the internal combustion engine.
• An inertia moment M1 required to rotate the crankshaft of the internal combustion engine after starting the engine, a moment of inertia M2 of the flywheel, a resultant moment of inertia M3 of the ring gear and flywheel, and a resultant moment of inertia M4 of a ring gear and a flywheel of a land are so chosen that only upon engagement of the ring gear with the flywheel starting of the internal combustion engine takes place and a relationship M1 ⁇ M2 ⁇ M4 ⁇ M3 is met. This ensures the stability of the crankshaft spinning.
• DE 10 2004 044 932 A1 relates to an engine starting device.
• Axial movement of a pinion and an output shaft and ratcheting of the pinion are prevented with respect to the output shaft in the rotational direction, so that wear of a splined shaft connecting portion between the pinion and the output shaft and wear of the pinion and a ring gear are reduced. Thereby, the meshing noise generated when the engine is started is lowered.
• the engine starting device includes an output shaft and a thrust receiving surface on which abuts the axial end surface of an inner ring of a bearing. Further, the engine starting device includes a threaded portion formed at the end of the output shaft.
• the pinion is designed such that the end surface thereof abuts on the bearing side on the end surface of the inner ring of the bearing on the pinion shaft.
• the pinion is directed towards the bearing by the tightening force of a Screw pressed. This is located on the threaded section.
• the pinion, the output shaft and the bearing are fixed such that the thrust receiving surface and the end surface of the pinion on the bearing side clamp the inner ring of the bearing.
• the starting actuator constantly engages with a toothed ring, wherein the toothed ring can be coupled to the crankshaft of the internal combustion engine via an overrunning clutch or can be decoupled from this.
• a sprocket is mounted on the crankshaft of the internal combustion engine.
• the ring gear may be relatively movable to the crankshaft, so that the ring gear is stationary while the internal combustion engine is running.
• the above-mentioned first embodiment of the invention is based on the idea that basic interventions in the drive train of a motor vehicle are required. Consequently, the aforementioned first embodiment variant can initially only be used in smaller numbers.
• the above adaptation i. E. The elimination of the freewheel and the Eingurmechanismus' for small numbers usually no cost advantage, but means additional effort that would inevitably be reflected in the product cost.
• a standardized starting device while maintaining the freewheel and maintaining an engagement mechanism is modified to the effect that the Ritzelruureage the drive pinion of the starting device is displaced by means of a spacer such that the drive pinion constantly in engagement with the ring gear of the internal combustion engine which is disposed on the crankshaft, is engaged.
• the engagement mechanism still comprises an engagement relay, which, however, comprises a changed rest position and a reduced engagement path. This means a reduction of the noise and a lower contact bounce, since a reduced maximum speed is achieved when engaging.
• the relay winding can be selected according to the required specifications.
• the starting device in particular arranged by the output shaft of the electric drive drive pinion, arranged closer to the ring gear of the internal combustion engine down.
• the output shaft of the electric drive drive pinion arranged closer to the ring gear of the internal combustion engine down.
• FIG. 1 shows a first embodiment of the starter device proposed according to the invention with a pinion rudder, which allows a permanent engagement of the drive sprocket and the sprocket by the use of a spacer,
• Figure 1.1 shows a detail for the interpretation of the fork lever
• Figure 2 shows another embodiment of the present invention proposed starting device with permanent engagement between the drive pinion and sprocket by shifting position of the starter with respect to the sprocket.
• FIG. 1 shows a first embodiment of a starting device proposed according to the invention, in which the drive pinion is in permanent engagement with a gear wheel of an internal combustion engine, in particular a ring gear on the crankshaft of the internal combustion engine.
• FIG. 1 shows that an internal combustion engine 10 has a crankshaft 12.
• a flywheel 14 which may be a single or multi-mass flywheel, a gear, in particular a ring gear 16 is added.
• a relative movement between this toothed wheel 16 and the crankshaft 12 is possible in that the toothed wheel 16, in particular designed as a ring gear, is mounted on a freewheel 18. is taken.
• the gear, in particular designed as a ring gear 16 rotates at a different peripheral speed than the crankshaft 12.
• the toothing 20 of the toothed wheel 16 meshes with a drive pinion 24 of a starting device 22.
• the starting device 22 is arranged at a first distance 46 with respect to the toothed wheel 16 in the embodiment proposed according to the invention shown in FIG.
• starting device 22 is a standard starting device, a push-screw starter, Bosch R-Starter, ISBN 3-7782-20284, yellow series, automotive technology, "Starters and generators", 2002, pages 76 to 79, counter starter R70, which has an electric drive 28, which is designed in particular as a DC drive.
• the electric drive 28 comprises a stator 50 and a rotor 52, cf. illustration according to FIG. 2.
• the starting device 22 comprises an engagement relay 30, which acts on a fork lever 34.
• the fork lever 34 is pivotable about a pivot point 38.
• Corresponding to the entry or Ausfahrweges of the contactor 30 is an axial displacement of the drive pinion 24, which is associated with a freewheel 36 generated upon actuation of the fork lever 34 along a link 32.
• a spacer 40 is arranged.
• the spacer 40 is sleeve-shaped in the embodiment shown in FIG. 1 and comprises a first end 42 and a second end 44. While the first end 42 assigns the electric drive 28, the second end 44 supports the sleeve-shaped spacer 40 a collar of the freewheel 36, which is associated with the drive pinion 24 from.
• the provision of the spacer 40 allows the drive pinion 24 and gear 16 always in engagement, ie to keep it in the engaged state.
• the position shown in Figure 1 represents the rest position of the drive pinion 54, in this meshes with the toothing 20 of the gear 16.
• the engagement relay 30 of the starter 22 has according to the first embodiment, a modified rest position and a reduced feed path. Reference is made to FIG. 1.1.
• the translation of the fork lever 34, ie the lever travel is 1 .57.
• the winding of the engagement relay 30 can be designed relatively weak in the context of the modular principle, so that the power consumption is limited.
• the starting device 22 described above in connection with Figure 1 is characterized in that at this compared to a standard starting device, Bosch R-Starter, ISBN 3-7782-20284, yellow series, automotive technology, "starters and generators", 2002, page 76 to page 79, countershaft launchers R70 have only slightest modification requirements to make. It is only a spacer 40 is required to achieve a permanent engagement between the teeth 20 of the gear 16 and the drive pinion 24 of the starter 22. This means that even with a standard starting device used today, the mind-change functionality can be achieved.
• FIG. 2 shows a further, alternative embodiment variant for realizing a permanent engagement between the toothed wheel 16 on the crankshaft of the internal combustion engine and the drive pinion of the starting device.
• the starting device 22 as shown in Figure 2 in a based on the gear 16 on the crankshaft 12, reduced second distance 54 arranged so that at an identical axial position of the drive pinion 24 together with freewheel 36 the drive shaft 26, compared to a standard starter, thrust lingtriebstarter, Bosch R-Starter, ISBN 3-7782-20284, yellow row, power2.9technik, "Starters and generators", 2002, pages 76 to 79, there compare countershaft starter R70, a shift of the starter 22 is closer to the internal combustion engine 10.
• a permanent engagement between the toothing 20 of the toothed wheel 16 and the toothing of the drive pinion 24 of the drive shaft 26 can be realized in a simple manner.
• the engagement relay 30 of the second embodiment variant of the modified standard starting device proposed in accordance with the invention shown in FIG. 2 is designed, compare with position 56, with an increased free travel.
• a rest stop 58 is also conceivable.
• the rest stop 58 can be arranged so that it is arranged directly opposite a prolonged slide 48.
• a separate stop 60 may also be provided.
• the engagement relay 30 has a switching function. It has to switch the starter current when it has fully energized. A standard inserted engagement relay 30 has this way, which must continue to be made possible in the new mounting position to switch the starter current.

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• 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)
• Transmission Devices (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2009
  • 2009-12-30 DE DE102009055414A patent/DE102009055414A1/de not_active Withdrawn
• 2010
  • 2010-11-26 WO PCT/EP2010/068282 patent/WO2011080015A1/de active Application Filing
  • 2010-11-26 CN CN2010800600180A patent/CN102686873A/zh active Pending
  • 2010-11-26 US US13/520,299 patent/US20130014610A1/en not_active Abandoned
  • 2010-11-26 EP EP10784303A patent/EP2519734A1/de not_active Withdrawn
  • 2010-11-26 JP JP2012546403A patent/JP2013516562A/ja active Pending

Non-Patent Citations (1)

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