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
  • F02N15/067—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
• • 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
  • F02N11/00—Starting of engines by means of electric motors
• • 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
  • F02N11/00—Starting of engines by means of electric motors
  • F02N11/08—Circuits or control means specially adapted for starting of engines
  • F02N11/0851—Circuits or control means specially adapted for starting of engines characterised by means for controlling the engagement or disengagement between engine and starter, e.g. meshing of pinion and engine gear
  • F02N11/0855—Circuits or control means specially adapted for starting of engines characterised by means for controlling the engagement or disengagement between engine and starter, e.g. meshing of pinion and engine gear during engine shutdown or after engine stop before start command, e.g. pre-engagement of pinion
• • 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
  • 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
• • 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

Definitions

• drives are used, which are fed with a separate from the fuel supply power supply.
• the drive pinion engages first in the ring gear of the internal combustion engine to then drive the internal combustion engine (eg, 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.
• Figure 2a is an enlarged sectional view of a spur gear and a
• FIG. 2b shows a perspective partial view of the driver disk
• FIG. 3 shows a perspective view of the spur gear with a drive plate removed from a sleeve
• FIG. 4 shows a perspective view of the driver disk and its rear side
• Figure 6 is a sectional view through a joint between the drive plate and
• Spur gear Figure 7 a to g are schematic representations of the course of events in connection with the attempted meshing of the spur gear in the faster rotating sprocket.
• a drive shaft 13 of the starter motor carries an armature 15 and a commutator 16 with carbon brushes 17 together with power supply 18.
• a lifting means 20 engagement relay
• the drive shaft 13 is mounted with its commutator end in a commutator 21, received on its opposite side with a pin 22 in an axial bore 23 of an output shaft 24.
• the output shaft 24 may be in a certain operating state and drive shaft, namely, when it is driven by the internal combustion engine or the ring gear ago and has not yet addressed a one-way clutch.
• the drive shaft 13 drives the output shaft 24 via a planetary gear 26.
• a planetary gear 26 For this purpose, it has an outer toothing 27, which planetary gears 28 drives, which in turn are in mesh with a fixed ring gear 29.
• the planet gears 28 are mounted on bolts 30 which are pressed in an end-side flange 31 of the output shaft 24. This end-side flange faces the starter motor.
• the output shaft is mounted behind the flange in the bearing bore 33 of an intermediate bearing 34 and its other end in a bearing 35 of a housing 37 often known as drive bearing plate, which closes the pole housing 1 1 and is clamped together by this tie rod 38.
• a coarse thread 39 is formed near the intermediate bearing 34, with which an internal coarse thread 40 on the extension 41 of the outer housing 42 of a freewheel 43 is engaged.
• the inner body 45 of the freewheel carries on its outer periphery and the bearing point 35 for the output shaft facing a spur gear 46 (pinch pinion). Between the inner body 45 and the outer housing 42 of the Freewheel 43 are the freewheel rollers 44.
• the spur gear 46 for the purpose of starting the internal combustion engine with a spur gear 48 (sprocket) thereof are brought into engagement.
• a stop device 54 is formed on this inside the housing 37, so that here a stop collar 56 is formed.
• a drive plate 70 is arranged before the spur gear 46. This drive plate 70 is rotatably disposed about the output shaft 24 and thereby axially secured in front of the spur gear 46.
• Figure 2a shows an enlarged sectional view of the spur gear 46 and the drive plate 70.
• a sleeve 73 sits the spur gear 46, and the sleeve 73 is inserted into a cylindrical opening 74 of the spur gear 46.
• Between sleeve 73 and spur gear 46 acts a press fit and / or a cohesive connection (adhesive, solder, welded connection).
• the sleeve 73 protrudes with one end 76 out of the opening 74 and thereby forms a pipe socket.
• the drive plate 70 is rotatably mounted.
• the drive plate 70 is freely rotatable in the exemplary embodiment to the left, while the drive plate 70 is rotatably movable only a few degrees to the right. This will be discussed later.
• On the side facing away from the drive plate 70 side is located on the outside of the sleeve 73 has a groove 77 in which a securing element 78 - here an axial circlip - is inserted and thus secures the axial position of the drive plate on the sleeve 73.
• the spur gear 46 has straight external teeth 79.
• the drive plate 70 has external teeth 82.
• the number of external teeth 79 and external teeth 82 is the same, for example ten.
• the profile of the external teeth 79 and external teeth 82 is the same.
• the outer teeth 79 are shorter than the outer teeth 82.
• the arrow 84 shown about the axis of rotation 83, indicates a left-hand direction about which the spur gear 46 is rotated in the case of driving.
• FIG 2b is a partial perspective view of the drive plate 70 is shown.
• the drive plate 70 has machined external teeth 82.
• a transition point 86 facing away from the direction of rotation 84 is beveled between the tooth flank 87 remote from the direction of rotation 84 and an end face 75, surface 80.
• FIG. 3 shows a perspective view of the spur gear 46 with the driver disk 70 removed from the sleeve 73.
• An end face 85 can be seen, which, when the driver disk 70 is mounted, faces it.
• wedge-shaped depressions 88 are incorporated, the depth of which increases in the clockwise direction, so that in the region of the greatest depth of a recess 88, a step 89 is a transition to the end face 85.
• Due to the perspective view of a second of the recess just described 88 opposite recess 88 is not visible.
• These recesses 88 cooperate with detent springs 91, which are attached to the drive plate 70, s. a.
• the recesses 88 are also designed ring-segment-shaped. In a variant, it is provided per outer tooth 79 to provide a recess 88.
• FIG. 4 shows a perspective view of the driver disk 70 and its rear side 94, which, in the state mounted on the sleeve 73, faces the end face 85 or, if appropriate, bears against it.
• the detent spring 91 has a free end 97 and a fixed end 10O on.
• the fixed end 10O is the end of the detent spring 91 which is closer in the relaxed state of the back 94 as the free end 97.
• the detent spring 91 are like the wells 88 also designed ring segment, wherein the detent spring 91 are dimensioned such that they are in the Recesses 88 fit.
• Figure 5 shows a radial plan view of a detent spring 91.
• the detent spring 91 spreads from the rear 94.
• FIG. 6 shows a sectional view through joint 103 between drive plate 70 and spur gear 46 -s. a. Figure 2a - in the locked state of the starting device 5.
• the detent spring 91 is located with its free end 97 in the recess 88, which is supported on the step 89.
• FIG. 7a to g are schematic representations of the course of events in connection with the attempted meshing of the spur gear 46 in the faster rotating spur gear 48 (sprocket) shown.
• the function of this arrangement in connection with a spur gear 48 is as follows:
• the arrow 1 10 represents the direction of movement of the spur gear 46 on the spur gear 48 (sprocket); this corresponds to the movement of the sleeve 73 on the output shaft 24 to the spur gear 48 to, Figure 7a.
• the arrow 1 13 represents the direction of rotation of the spur gear 48.
• a peripheral speed v48 of the spur gear 48 is greater than a peripheral speed v46 of the spur gear 46, which is zero here.
• the peripheral speed v48 is a speed that decreases, thereby representing the situation in which an internal combustion engine to which the spur gear 48 is attached leaks.
• Figure 7b shows the drive plate 70 at the moment of the first concern of the drive plate 70 to the spur gear 48th teeth 116 of the spur gear 48 can not initially penetrate into the tooth gaps 82a between the outer teeth 79 of the spur gear 46 due to their abutment on the outer teeth 82. Subsequently, the drive plate 70 slides with its outer teeth 82 in tooth gaps 1 16a of the spur gear 48. The standing under slight bias locking springs 91 slide along the rear 94 along. The drive plate 70 rotates counterclockwise relative to the spur gear 46. Between drive plate 70 and spur gear 46 is practically a freewheel 92 is arranged.
• the drive plate 70 is entrained by the spur gear 48 by means of the outer teeth 82, the spur gear 48 rolls with its outer teeth 116 in the tooth gaps 119 ("tooth pockets") 7c, as long as the spur gear 48 rotates faster, it is thus a method for the mechanical synchronization of two rotating, off-axis spur gears 46, 48 - in particular a Andrehritzels a starter 5 and a ring gear an internal combustion engine - provided, wherein the first spur gear 46 rotatably carries at its end facing the second spur gear 48 end face rotatable in one direction rotatable drive plate 70, wherein the drive plate 70 at axial advancement of the first spur gear 46 to the second spur gear 48 through the rotating second Stirnza Hnrad 48 taken and thereby tooth gaps 119 between teeth 82 of the first spur gear 46 for an axial penetration of teeth 1 16 of the second spur gear 48 are closed.
• Friction between the drive plate 70 and the spur gear 46 keeps the drive plate 70 in a defined contact with the spur gear 48.
• the direction of the relative speed changes, for example.
• the spur gear 46 and / or slowing down the spur gear 48 to a the Arrow 1 13 opposite movement engages the drive plate 70 with the detent spring 91 in the recess 88 and releases the axial engagement movement for the spur gear 46, Figure 7e to 7g.
• a method is provided, according to which the drive plate 70 is coupled to the first spur gear 46 by means of a freewheel 92 and at larger circumferential speed v46 of the first spur gear 46, the second spur gear 48 due to the smaller peripheral speed v48 by means of the freewheel 92 entrains.
• the drive plate 70 must be performed as low mass as possible.
• the drive plate 70 may be e.g. made of spring steel as punched / drawn / bent part. This allows the simple representation of the tooth gaps 1 19 and outer teeth 82nd
• a coating to reduce friction facilitates entrainment and reduces wear.
• An involute curve also of the tooth gaps 119 can be provided for the purpose of reducing wear, for example sintered material can be used in order to allow as free a shaping as possible and also low mass.
• elastomers for example on the outer teeth 82, can improve the take-in.
• the outer teeth 82 or driver elements on the drive plate 70 can be made brush-like.
• the freewheel 92 between the drive plate 70 and the spur gear 46 is configured such that a drive torque of the starter motor 10 closing the freewheel 92 and thus entrainment of the drive plate 70 can be effected by the spur gear 46.
• the drive plate 70 engages by means of synchronization elements, preferably detent springs 91, on the spur gear 46, preferably in depressions 88. It is envisaged that the drive plate 70 has as many external teeth 82 as synchronization elements.
• the drive plate 70 has at least one driver element, preferably at least one outer tooth 82.
• this driver element may also be brush-like.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Gears, Cams (AREA)
• Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
• Retarders (AREA)
• Transmission Devices (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=42562482

Family Applications (1)

Country Status (5)

Cited By (5)

Families Citing this family (3)

Citations (6)

Family Cites Families (7)

• 2009
  • 2009-05-29 DE DE102009026593A patent/DE102009026593A1/de not_active Withdrawn
• 2010
  • 2010-05-25 WO PCT/EP2010/057118 patent/WO2010136429A1/de active Application Filing
  • 2010-05-25 PL PL10721792T patent/PL2435688T3/pl unknown
  • 2010-05-25 EP EP10721792.9A patent/EP2435688B1/de active Active
  • 2010-05-25 CN CN201080033445.XA patent/CN102483023B/zh not_active Expired - Fee Related

Patent Citations (6)

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