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
• • 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
• • 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
  • Y10T74/132—Separate power mesher

Definitions

• the starter pinion is engaged in the ring gear of the internal combustion engine and the starter is used to carry out the method.
• the invention relates to the method of engaging the starter pinion in the ring gear of the internal combustion engine and the starter for carrying out the method, particularly for internal combustion engines, with a disengageable pinion that is electromagnetically displaced into engagement with the ring gear of the internal combustion engine.
• the starters for internal combustion engines are designed in such a way that the disengageable pinion is engaged in the engagement with the ring gear of the internal combustion engine by the action of the core of the electromagnet on the pinion or by means of a, most often two-armed lever, the electromagnet being outside of the electric motor axis the pinion so that their axes are parallel.
• a solution is also known where the release electromagnet is arranged in the axis of the starter pinion, but the electric motor is positioned in parallel with them.
• an electric motor with permanent ferrite magnets working at high speeds uses an internal gear in the design solution, which reduces the speed of the electric motor to a necessary value of the pinion speed when the pinion teeth are engaged in the toothing of the gear flywheel.
• This gearbox is usually mounted in the axis of the electric motor in the case of a planetary solution, or in the axis of the pinion when it is not in the axis of the electric motor.
• the so-called tracking spring is used to engage the pinion teeth in the teeth of the flywheel ring when the pinion tooth bumps onto the tooth of the ring gear of the flywheel of the internal combustion engine, which violently pushes the pinion into the toothing of the flywheel ring when the armature is fully torque.
• the present invention seeks to provide an improved method of meshing the pinion of a starter with permanent magnets of the stator into the ring gear of the internal combustion engine, the pinion, the electric motor and the release electromagnet being mutually positioned on one axis when carrying out this method.
• the basis of the method is that the pinion with the axial force is freely acted on via the tie rod mounted in the cavity of the armature shaft, to which the axial force is transmitted from the track spring of the movable core of the release electromagnet, and that the pinion with a reduced armature torque rotates, which is generated by the influence of the permanent magnets with high remanence, where the course of the axial pressure of the movable core of the release electromagnet is constant in relation to the generated armature torque with direct engagement of the pinion teeth in the teeth of the flywheel of the internal combustion engine and changes in the case the tooth-on-tooth position, where, due to the reduced armature torque, the engagement spring springs, the toothed parapets of the pinion slip on the parapets of the flywheel, the pinion teeth being rotated relative to the teeth of the flywheel into the position in which the pinion teeth engage the teeth of the S chungwheel be engaged.
• the starter for carrying out the method consists of an electric motor driving the axially moving pinion with a stator with permanent magnets, a core with one mounted in the rear cover
• Release electromagnet In the cavity of the armature shaft of the electric motor is the Tie rod stored freely. One side of this tie rod is assigned to the engagement spring mounted in the cavity of the movable core of the release electromagnet and the other side is assigned to the end region of the pinion. The tie rod is guided on the side of the pinion through the shoulder of the armature shaft and on the side of the release electromagnet through the shoulder in the fixed core of the release electromagnet. A return spring is housed between the fixed core and the movable core of the release electromagnet, which pushes the pinion away from the flywheel ring into the starting position.
• a stop pin is inserted in the inside diameter of the engagement spring with the narrowed part.
• This stop bolt is supported with the outer end face on the washer secured in the movable core.
• the engagement spring is supported, the other side of the engagement spring is supported on the bottom of the cavity of the movable core.
• the movable core lies on and between the inner surface of the cover of the rear cover via an insulating lining and a contact spring
• a washer is formed between the movable core and the inner surface of the cover, this gap being always the same as the gap between the insulating lining and the insulating washer of the bridge.
• tie rod is, if it is formed from non-magnetic material, advantageously as an injection molded part made of plastic. For the generation of the reduced torque of the armature at Tracing the pinion, it is advantageous to create the magnet of the stand from the NdFeB material.
• FIG. 1 shows the section through the starter
• Fig. 2 shows the section through the starter of Fig. 1 with the bearing of the release electromagnet , the tie rod and the end of the pinion.
• the starter further consists of a rear cover 14 with a brush holder 15, a release electromagnet 16 and a front cover 1_, from which the extendable pinion 4 protrudes.
• the pinion 4 is provided on the side of the end region 4.1 with a return spring 7 mounted between the stop ring 8 and the engagement chuck 3 of the one-way clutch 28.
• the stop ring 8 is in the end region 4J . the pinion 4 secured circlip 9 secured.
• the one-way clutch 28 with the rollers 5 and springs 6 is mounted in the end region of the shaft 29 of the armature 13 of the electric motor.
• the extended late 30's One-way clutch 28 is with the inner cylinder diameter 30.1 via a bearing 22 on an outer extended part 3J .
• the engagement chuck 3 stored.
• the end of the engagement chuck 3 is guided over a bearing 2 ⁇ _ mounted in the front cover.
• the extendable pinion 4, the armature 13 of the electric motor and the disengaging electromagnet 16 are mutually positioned on one axis.
• the release electromagnet 6 contains a holding winding 17.1 and a pull-in winding 17.2.
• the fixed core 18 and the movable core 19 are mounted, in the cavity 19.1 of which the engagement spring 12 is mounted.
• the stop bolt 27 is inserted with the narrowed part 27.3 in the inside diameter of the engagement spring 12.
• This stop bolt 27 is supported with the outer end face 27.2 on the washer 26 secured in the movable core 19 of the release electromagnet.
• On the inner end face 27.1 of the stop bolt 27, the engagement spring 12 is supported on one side 12.1.
• the other side 12.2 of the engagement spring 12 is supported on the bottom 19.2 of the cavity and between the stop surface 27.4 of the narrowed part 27.3 of the stop bolt 27 and the bottom 19.2 of the cavity 19 is a previously set free distance c. This distance c is selected such that the bridge contacts 20 with the contacts K1 and K2 are not switched through earlier before the pinion 4 is engaged in the ring gear of the internal combustion engine.
• a tie rod 25 is freely supported, which is formed from non-magnetic material, advantageously from an injection molded part made of plastic.
• This tie rod 25 is associated with one side 25.1 of the outer end face 27.2 of the stop bolt 27, on which the engagement spring 12 mounted in the cavity 19.1 of the movable core 19 of the release electromagnet 16 acts.
• the tie rod 25 is assigned with the other side 25.2 to the end region 4J_ of the pinion 4.
• the Einspurstange 25 is guided on the side of the pinion 4 by the shoulder 13.1 of the shaft 29 of the armature 13 and on the side of Ausmaschinektromagneten 16 by the fixed core in the eighteenth formed paragraph 18.1 performed.
• a return spring 24 is arranged between the fixed core 18 and the movable core 19 of the release electromagnet 16.
• the movable core 19 of the release electromagnet 16 lies on an insulating lining 22 and a contact spring 2_ to the inner surface of the cover 24, which closes the rear cover 14.
• the movable core 19 sets with a tie rod 25 Movement continues and the pinion 4 is engaged with the pressure of the end of the tie rod 25 in engagement with the ring gear of the internal combustion engine.
• the contacts K1 and K2 are switched with the bridge 20 and with this the circuit of the electric motor of the starter is switched and the pinion is turned with full torque. The starter is now in operation.
• a return spring 24 is arranged between the fixed core 18 and the movable core 19 of the release electromagnet 16, which returns the movable core 19 to the rest position.
• the movable core 19 moves back, the insulating lining 22 stops on the inner surface of the cover 24, the movable core 19 continues the movement, the contact spring 2 is pressed until the locking washer 23 covers the distance a or b and also rests against the inner surface of the cover 24. This dampens the impact of the moving core! _9 during the return movement.

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)

Applications Claiming Priority (3)

Publications (1)

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Family Applications (1)

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Family Cites Families (13)

• 2001
  • 2001-04-10 CZ CZ20011282A patent/CZ293544B6/cs not_active IP Right Cessation
  • 2001-11-19 SK SK1381-2003A patent/SK13812003A3/sk unknown
  • 2001-11-19 EP EP01274088A patent/EP1384001A1/de not_active Withdrawn
  • 2001-11-19 US US10/474,550 patent/US6870278B2/en not_active Expired - Fee Related
  • 2001-11-19 WO PCT/CZ2001/000066 patent/WO2002081903A1/de not_active Application Discontinuation

Non-Patent Citations (1)

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