EP2547896B1 - Anlasser für einen brennkraftmotor mit einem vom startergehäuse herausragenden andrehritzel - Google Patents

Anlasser für einen brennkraftmotor mit einem vom startergehäuse herausragenden andrehritzel Download PDF

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Publication number
EP2547896B1
EP2547896B1 EP11713005.4A EP11713005A EP2547896B1 EP 2547896 B1 EP2547896 B1 EP 2547896B1 EP 11713005 A EP11713005 A EP 11713005A EP 2547896 B1 EP2547896 B1 EP 2547896B1
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EP
European Patent Office
Prior art keywords
pinion
starter
starter according
elastic ring
bushing
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.)
Active
Application number
EP11713005.4A
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English (en)
French (fr)
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EP2547896A2 (de
Inventor
Guillaume Seillier
Laurent Boisserenq
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Valeo Equipements Electriques Moteur SAS
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Valeo Equipements Electriques Moteur SAS
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Publication of EP2547896A2 publication Critical patent/EP2547896A2/de
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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
    • 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
    • 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
    • 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
    • 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
    • F02N15/063—Starter drives with resilient shock absorbers
    • 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

Definitions

  • the present invention relates to a thermal engine starter with an outgoing pinion starter, in particular for a motor vehicle.
  • This starter comprises a housing inside which is housed an electric motor, whose shaft is intended to drive in rotation a starter output shaft carrying a gear meshing belonging to a launcher comprising an outgoing gear, which is arranged to the outside of the housing.
  • the starter output shaft is, as in the document FR 2,745,885 , confused with the electric motor shaft, or, as in document US 4,818,889 separate from the shaft of the electric motor.
  • the conventional starter housing has a front bearing configured to attach the starter to a fixed portion, a cylinder head, and a rear bearing for rotatably mounting the rear end of the electric motor shaft.
  • the yoke carries the inductor, such as magnets or windings, the electric motor surrounding a wound armature integral with the shaft of the engine. This yoke is interposed axially between the front and rear bearings.
  • the launcher has a metal sleeve having a front end passing through an opening of the front bearing and the pinion is located outside the front bearing on the front end of this sleeve.
  • a freewheel roller is interposed between the driver and the rear end of the sleeve.
  • the driver is configured to engage the starter output shaft via a spline and helical complementary groove connection.
  • the launcher and the pinion can thus move axially and in rotation because the starter output shaft carries the helical meshing drive.
  • This pinion in the advanced position is intended to engage with the teeth of a ring gear start connected directly or elastically to the crankshaft of the engine to start.
  • the pinion is integral with the front end of the sleeve so that the number of teeth of the pinion is limited and that the pinion is in the same material as the sleeve constituting the cylindrical main body of the pinion.
  • the pinion is distinct from the sleeve having a nose at its front end.
  • the pinion is rotatably connected to the nose by a connection with complementary splines occurring between the outer periphery of the nose and the inner periphery of the pinion.
  • This connection allows axial movement of the pinion relative to the socket.
  • a stop is provided to limit the axial movement of the pinion, as well as a snap ring to axially immobilize the abutment in combination with a catch-up spring games resting on a shoulder of the nose to axially bias the pinion in contact with stop. This spring is compressed during assembly of the stop and the ring.
  • the rod is received in a housing and in a semi-cylindrical groove respectively formed in the abutment and in the nose.
  • an additional piece is also provided for retaining an elastic ring, namely a lid mounted in a groove made in an extra thickness, which is present at the front of the pinion.
  • Axial play exists between the cover and the front end of the socket.
  • the pinion is further configured at the rear to have an extra thickness adjacent to a stop in the sleeve. This stop prevents inclination of the pinion relative to the socket.
  • the present invention aims to meet this desire.
  • a heat engine starter with a centrally perforated pinion gear in particular for a motor vehicle, comprising a casing provided with a front bearing provided with a front face provided with an opening, a launcher having a socket having a front end passing through the opening of the front bearing and carrying the pinion protruding outside the front bearing, complementary splines belonging respectively to the outer periphery of the front end of the bushing and to the inner periphery of the outgoing gear, a groove; interrupting the splines of the bushing for mounting an axially immobilizing pinion of the pinion, a catch spring of the games urging the pinion in contact with the stop, in which, on the one hand, the front end of the sleeve presents a shoulder for supporting the rear end of the spring and secondly, the pinion has at the rear a blind housing for mounting the spring, is characterized in the abutment is constituted by an elastic ring of height greater than its thickness, in that the elastic ring is house
  • the invention reduces the number of parts for the assembly of the pinion with the sleeve; the ring of the prior art being removed.
  • the stop is simplified because it consists of an elastic ring less solid than the abutment of the prior art and of greater diameter.
  • the solution on the one hand, is less bulky axially due to the mounting of the elastic ring at least partly in the recess and on the other hand, avoids ejection of the stop under the effect of the centrifugal force. by cooperation of the elastic ring with the outer rim of the chambering.
  • the solution is robust and reliable because it avoids disconnection of the pinion relative to the socket.
  • the outer diameter of the pinion can have the desired value.
  • Thanks to the invention can therefore increase the size and the number of teeth of the pinion, for example to drive and accompany the engine at higher speed or to have a better operating point.
  • the resistance of the pinion is not unduly weakened and the axial space requirement is reduced.
  • the speed of rotation of the starter is not conditioned by the deformation and / or the opening of the elastic ring.
  • the material of the elastic ring or its configuration is not conditioned by the speed of rotation of the starter.
  • the pinion 18 is said pinion leaving because it is located outside the housing 12.
  • an orientation from the rear to the front corresponds in the figure 1 to a right-to-left orientation.
  • transverse, axial and radial orientations will be defined with respect to the axis XX, which is the axis of axial symmetry of the portion 26 and the end 36.
  • This axis also defines the center of an opening 312 made in the front face 120 of the front bearing 12.
  • the front portion 26 of the launcher is therefore a main body of great hardness because the rear end of this body forms a track for the rollers of the free wheel intervening between the body and the launcher coach.
  • this body is cylindrical in axis XX of axial symmetry.
  • This body 26 is internally hollow for receiving the end 36 of the shaft of the electric motor, thus penetrating the body 26.
  • This cylindrical body 26 is metallic and therefore consists of a sleeve, which according to a characteristic is distinct from the pinion 18.
  • the front end of the bushing 26 passes through, as described hereinafter, the opening 312 of the bearing 12, which opens into the front face 120 of the bearing 12.
  • the front bearing 12 is of hollow form and is configured to be fixed on a fixed part and to carry an electromagnetic contactor (not visible). Here it is metallic, for example aluminum to obtain the desired shapes.
  • the pinion 18 is arranged to be movable in rotation and axially between a position of rest visible in the Figures 1 and 2 , and an advanced position, in which the pinion meshes with the starter ring 118 ( figure 2 ) integral with a flange, such as a flywheel, rigidly or elastically connected to the crankshaft of the engine to start it.
  • a flange such as a flywheel
  • the axial displacements of the pinion are here controlled by a fork, called fork in the document FR 2,745,855 acting on the pitcher's coach.
  • This fork is articulated at an intermediate point on the front bearing 12 of the housing.
  • a link with splines and complementary helical grooves intervenes between the electric motor shaft and the launcher driver locally surrounding this shaft.
  • the fork is intended to be actuated by the electromagnetic contactor described for example in the documents WO 2004/088126 and WO 03/002870 which will be referred to for further details; these documents also show the electric motor as well as the rear bearing and the yoke of the starter.
  • This range is connected, in a known and visible manner, for example in FIG. WO 2004/088126 at its upper end to the movable core of the switch configured to act on a rod-shaped pusher carrying a plate-shaped movable contact arranged to come into contact with two power supply terminals for powering the electric motor of the starter to drive in rotation the starter ring 118 of the engine of the motor vehicle when the pinion 18 and the sleeve 26 are in advanced position and engaged with this ring.
  • One of the terminals is intended to be electrically connected to the positive terminal of the battery of the motor vehicle.
  • the other terminal is intended to be electrically connected to the electric motor of the starter.
  • the contactor also comprises a fixed core, at least one coil and springs, in particular return to return the movable core in the rest position.
  • a contact closure and a power supply of the contactor coil is produced so that the movable core is moved towards the fixed core and moves the ignition coil. fork and pusher.
  • the movable contact comes into electrical contact with the terminals and the electric motor is electrically powered and rotates the output shaft of the starter.
  • the bushing 26 is guided axially by bearing means 137, 37 'acting, on the one hand, between the bushing 26 and the bearing 12 and, on the other hand, between the bushing 26 and the smooth end 36 of the shaft of the electric motor housed in the sleeve 26.
  • the bearing means 37 'intervening between the smooth outer periphery of the axial end 36 and the stepped internal periphery in diameter of the sleeve 26 may consist of bearings, as in the documents FR 2,745,885 and US 4,818,889 .
  • the bearing means 137 acting between the outer periphery of the sleeve 26, also staggered in diameter, and the front bearing 12 may consist of a ball bearing as in the document US 4,818,889 , in roller bearing or in a pad as in the document FR 2,745,855 .
  • the bearing means 37 ', 137 here consist of axial needle roller bearings of the sleeve 26. It all depends on the applications.
  • the bushing 26 has a front end 126, 127, which passes through the opening 312 of the front bearing 12 and which carries the outgoing pinion 18 outside the front bearing 12.
  • This pinion 18 is centrally perforated. The edge of the hole constitutes the inner periphery of the pinion 18.
  • the spring 61 consists in the embodiment of the figure 2 in a coil spring, also called coil spring.
  • this assembly involves a stop 60, 160 and a spring 61.
  • the front end 126, 127 of the sleeve 26 is stepped in diameter.
  • this front end of the bushing 26 has a first section 127 extended axially by a second section 126 of reduced external diameter with respect to that of the first section 127.
  • This second section 126 belongs to the free end of the casing 26 of the launcher .
  • the second section 126 is internally closed at the front by a washer as in FIG. figure 1 of the document FR 2,745,855 .
  • the pinion 18 is attached to the second section 126.
  • the front face 128 of this section 126 extends in axial projection with respect to the front face 183 of the pinion 18.
  • the outer diameter of the pinion 18 is here greater than the outer diameter of the sleeve 26, that is to say the outer diameter of the first section 127.
  • the diameter of the root circle of the pinion 18 is greater than the external diameter of the first section 127.
  • the number of teeth of the pinion 18 is therefore not imposed by the size of the sleeve 26.
  • the second section 126 is intended to extend outside the starter housing. In this embodiment it is implanted for the most part outside the front bearing 12 when the pinion 18 is in the rest position. When the pinion 18 moves axially and in rotation from its rest position to its advanced meshing position with the ring gear 118, the second section 126 is allowed to extend entirely outside the front bearing 12 and the first section 127 partly outside this landing 12.
  • the front end 126, 127 of the bushing thus passes through the front bearing 12.
  • This second section 126 is smaller than the outer diameter of the first section 127.
  • the internal diameter of the first section 127 is greater than the internal diameter of the second section 126.
  • the outer diameter of the second section 126 is greater than the internal diameter of the first section 127.
  • the needle bearing 137 for axial guiding of the bushing 26 intervenes between the outer periphery of the first section 127 and the internal periphery staggered in diameter of a sleeve 112, which centrally presents the front bearing 12.
  • the bearing 12 is thus centrally perforated, thanks to the internal bore 312 of the sleeve 112, for passage of the sections 127, 126 of the sleeve 26 and the smooth front portion 36.
  • the sleeve 112 is directed axially towards the inside of the bearing 12, that is, in opposite direction to the pinion 18. This makes it possible to obtain the desired size for the pinion 18, while having a front bearing with a front face 120 provided with an opening 312, which does not determine the size of the pinion because the sleeve 112 is directed inwards.
  • this support consists of a washer 181 mounted in an annular transverse housing 212 formed in the front face 120 of the bearing 12 around the opening 312.
  • This opening 312 and this housing affect a wall of axial transverse orientation that has the front face 120 of the bearing 12 of hollow form as visible in the Figures 1 and 2 .
  • the washer 181 is housed entirely in the housing 212 to reduce the axial size. In a variant, it is mounted for the most part in this housing 212. In a variant, it is bonded to the front face 120 of the bearing 12.
  • the rear face of the pinion 18 is closed by a washer 180 attached to the rear face of the pinion having an annular notch (not referenced) for this purpose. This produces a tight contact when the pinion 18 is in the rest position, the washers 180, 181 then being in contact with each other. It will be noted that in the figure 3 the washer 180 is not yet attached to the rear of the pinion 18
  • the washer 181 is in an elastomeric embodiment for reducing noise.
  • the washer 180 is rigid.
  • the housing 212 is of cylindrical shape. It is delimited by a transverse orientation face relative to the axis XX of the sleeve 26 and the end 36. This face is extended at its outer periphery by an axially oriented face relative to the axis XX for centering the washer 181.
  • the housing 212 is centrally perforated because the internal bore 312 of the sleeve 112 opens into this housing 212 for mounting the washer 181.
  • the washer 181 is omitted and the transverse face of the housing 212 is machined to constitute the support of the rear end of the pinion 18.
  • the front face 120 of the bearing 12 is machined to form the support of the end. rear of the pinion 18. The direct contact between the pinion 18 and the transverse face of the housing 212, more or less deep, or the front face 120 of the bearing 12, reduces the length of the chain of dimensions.
  • the washer 180 is integral with the pinion 18.
  • the teeth of the pinion 18 are chamfered at the front face 183 of the pinion 18.
  • the pinion 18 is in one embodiment in the same material as that of the sleeve 26 here metal.
  • the material of the pinion 18 is different from that of the sleeve 26.
  • the pinion 18 is made of sintered material.
  • this elastic ring 60, 160 is greater than its thickness.
  • the grooves 67, 167 are complementarily formed respectively to the outer periphery of the second section 126 of the bushing 26 and to the inner periphery of the pinion 18 which is centrally perforated for the passage of the second chamfered free end section 126.
  • the grooves 67, 167 are axially oriented, that is to say straight splines, for mounting with possibility of axial displacement of the pinion 18 relative to the second section 126 and rotational connection therewith.
  • This elastic ring 60, 160 is, according to a feature housed with radial clearance at least partly in an annular recess 62 formed in the front face 183 of the pinion 18.
  • the recess 62 is of transverse orientation.
  • the outer periphery of the ring 60, 160 is housed entirely in the recess 62.
  • the front face 183 of the pinion 18 is thus cut to form the recess 62, locally decreasing the thickness of the pinion 18.
  • the inner periphery of the recess 62 is delimited by the central hole of the pinion 18.
  • the grooves 167 open at the front in the recess 62 at the inner periphery of this recess 62, which is axially reduced in size because the height of the elastic ring 60, 160 is greater than its thickness. In all cases the resistance of the pinion is not unduly weakened.
  • the pinion is simplified compared to that of the document US 2002/0047269 because it does not have extra thickness. It is also lighter.
  • This arrangement reduces the axial size of the assembly of the pinion 18 on the portion 126 of the front end of the sleeve 26. In addition, the number of parts is not increased.
  • the inner periphery of the elastic ring 60, 160 is, according to one characteristic, mounted in a groove 64, 164 made in the grooves 67 of the second section 126.
  • the grooves 64, 164 are located in the vicinity of the front face 128 of the second section 126.
  • the grooves 67 are therefore interrupted at the front by the groove 64, 164.
  • the groove 64, 164 axially retains the ring 60, 160, which is thus a ring for immobilizing and axially immobilizing the pinion 18.
  • flanks of the groove 64, 164 are in the figures 2 and 5 parallel and are perpendicular to the axis XX that is to say transverse orientation.
  • the grooves 67, 167 open respectively in the front face 128 of the section 126 and in the recess 62 of the front face 183 of the pinion 18.
  • the rear end of the second section 126 is delimited by the front face 130 of the first section 127.
  • L rear end of the second section 126 is provided with a groove 129 adjacent to the front face 130 of the section 127.
  • the pinion 18 has centrally a cylindrical housing of axial orientation 261.
  • the housing 261 is blind. It opens at the rear of the pinion 18 being delimited by a cylindrical wall of axial orientation relative to the axis X-X. This wall is delimited at the front by a wall of generally cylindrical shape for support of the front end of the coil spring 61 mounted in the housing 261.
  • the rear end of the spring 61 bears on the front face 130 of the first section 127.
  • the front face 130 of the first section 127 thus constitutes a bearing shoulder for the rear end of the spring 61, which here is a catch spring games games biasing the pinion 18 in contact with the stop 60, 160.
  • the groove 129 is in a characteristic axially offset forwardly with respect to the front face 130 of the section 127 for centering the rear turn of the spring 61 and thus the rear end of the spring 61.
  • the second section 126 has a groove 129 whose rear end is close to the front face 130 of the first section 127.
  • a retaining surface (not referenced) of the rear end of the spring 61 exists between the shoulder 130 and the groove 129 having a cylindrical bottom.
  • the spring 61 being in this embodiment a helical spring, this retaining surface here has a length such that it centers the last turn of the spring 61 bearing on the shoulder 130.
  • the semi-cylindrical wall of the housing 261 has a shape complementary to the front turn of the spring 61.
  • the axial length of the splines 167 of the pinion 18 is less than the axial length of the grooves 67 of the second section 126.
  • the grooves 67 of the section 126 open at the rear in the groove 129, whose depth is greater than or equal to the depth of the grooves 67 for machining thereof.
  • the diameter of the bottom of the groove 129 is ( Figure 2 ) This bottom 129 is delimited axially by two connecting flanks respectively to the retaining surface and to the flutes 67.
  • the flank associated with the flutes 67 is inclined, while the other flank associated with the span retaining is generally radial orientation.
  • the grooves 167 of the internal bore of the pinion 18 open at the front in the recess 62 and at the rear in the housing 261.
  • the axial length of the grooves 167 is in this embodiment greater than the axial length of the housing 261 and less than the length of the grooves 67.
  • the end of the section 126 extends in axial projection with respect to the front face 183 of the pinion 18.
  • the recess 62 of radial orientation is annular in shape and has a bottom of orientation transverse to the axis XX. This bottom is extended at its outer periphery by a cylindrical rim axially oriented relative to the axis XX.
  • the diameter of the recess flange 62 is greater than that of the outer diameter of the elastic ring 60, 160. This diameter of the recess flange 62 is here close to the outer diameter of the ring 60, 160. A radial clearance therefore exists between this flange and the outer periphery of the elastic ring 60, 160.
  • a band of annular material thus exists between the outer periphery of the recess 62 formed by the recess flange 62 and the foot circle of the pinion 18.
  • This band depends on the applications to have the mechanical strength required for the teeth of the pinion 18.
  • This arrangement makes it easy to mount the ring 60, 160 in the recess 62 and in the groove 64, 164 concerned. It also makes it possible to retain radially the elastic ring 60, 160 in these overspeed of the starter. It avoids an ejection of the ring 60, 160 and disassembly of the pinion 18, knowing that this ring 60, 160 is sensitive to the phenomena of centrifugal force because its height is greater than its thickness.
  • the axial depth of the recess 62 is a function of the thickness of the ring 60, 160.
  • the axial depth of the recess 62 is greater than or equal to the thickness of the ring 60, 160 for a good recovery of the ring. 60, 160 by the pinion 18 and a good radial retention of the ring 60, 160.
  • the thickness of the ring 60, 160 is smaller than the internal diameter of this ring 60, 160.
  • the radial height of this ring 60, 160 is greater than the axial thickness of this ring.
  • the outer diameter of the recess 62 is greater than the diameter of the cylindrical wall of axial orientation of the housing 261 and therefore to that of the splines 67, 167.
  • the outer diameter of the recess 62 is thus greater than the outer diameter of the spring 61 mounted in the housing 261.
  • This spring 61 is here a helical spring type.
  • the depth of the groove 64, 164 is a function of the depth of the grooves 67, 167.
  • the grooves 64, 164 are here deeper than the grooves 67, 167.
  • the spring 61 is used to compose the mounting sets and / or damping the shocks of the pinion 18, in particular when a tooth of the pinion 18 comes into contact with a tooth of the ring 118.
  • This spring 61 therefore has a dual function. As visible at figure 2 in the retracted rest position of the pinion 18, the turns of the spring 61 are not contiguous; the front face of the washer 181 being offset axially forwardly relative to the shoulder 130.
  • the spring 61 may have a great axial length while being well maintained in particular by the aforementioned restraint span. This spring 61 works in good conditions.
  • the spring 61 is also used to ensure the mounting of the elastic ring 60, 160 in the recess 62.
  • the assembly of the spring 61, the pinion 18 and the elastic ring 60, 160 is made final after assembly of the other elements of the starter.
  • the spring 61 is axially threaded onto the section 126 projecting with respect to the bearing 12. This spring 61 to the end of this first step is supported on the shoulder 130 constituted by the front face 130 of the first section 127.
  • a second step the pinion 18 is axially threaded onto the section 126. At the end of this second step, the pinion abuts the spring 61.
  • the starter electromagnetic contactor is electrically powered to move the mobile core thereof and the fork.
  • the bushing is then moved forward.
  • the spring 61 is compressed, the groove 64 is then accessible and the recess 62 is disengaged which allows to easily mount the elastic ring in its groove 64, 164.
  • the length of the spring 61 is determined in such a way that do not come to a contiguous turn before the groove 64 is accessible.
  • a fourth step the power supply to the contactor is cut off so that the spring 61 expands and pushes the pinion axially forward so that the pinion bears against the rear face of the ring 60, 160 by the intermediate of its transverse orientation bottom of the recess 62.
  • the pinion then covers the ring 60 radially ( figure 2 ).
  • the width of the groove 64 is generally equal to the thickness of the elastic ring 60.
  • the anchoring of the ring 60 in the groove 64 is robust.
  • the ring 60 of these Figures 1 to 3 consists of an open ring of the standard type with a slot, which separates the two circumferential ends of the ring.
  • this split ring 60 consists of a circlip.
  • the circumferential ends of the ring 60 are each provided with a hole (not referenced in the figures 1 and 3 ) for receiving the ends of the branches of a clamp, called circlip pliers, for opening the ring and increase its diameter for mounting the ring in its groove 64 and for disassembly thereof.
  • a clamp called circlip pliers
  • the ring 60 mounted in its groove 64 is not ejected under the effect of centrifugal force even if the starter of the starter rotates at high speed because when opening it abuts on the cylindrical flange axial orientation of the recess 62.
  • the recess allows to cover radially ring 18 and limits the opening of the elastic ring.
  • the radial clearance between the ledge 62 and the external periphery of the ring 60 elastic, circlip-shaped, depends on the applications and in particular the speed of rotation of the starter of the starter.
  • the solution is economical, the ring 60 of axial locking pinion 18 is a standard type part.
  • the present invention makes it possible to use an elastic ring of the standard type while not being limited at the speed of rotation of the launcher.
  • the elastic ring 160 is a standard type ring which has elastic tabs inclined at its inner periphery.
  • the groove 164 is enlarged because it receives the elastic tabs 161.
  • the tabs 161 are snap-fitted in the groove 164.
  • the tabs 161 are threaded onto the front end of the section 126.
  • the tabs due to their elasticity, deform and then relax as they arrive in the groove 164. dimensioned accordingly.
  • the ring 160 can not be ejected under the action of the centrifugal force due to the presence of the recess 62; the legs can not get out of the throat 164.
  • the recess 62 is in contact at its bottom with the rear face of the ring 60, 160.
  • the recess flange serves as a radial abutment to limit radial expansion. of the ring.
  • the electric motor shaft is configured to form a pinion belonging to a planetary speed reducer interposed between the electric motor shaft and the freewheel.
  • the connection with splines and complementary grooves occurs between a sleeve belonging to the planet carrier of the gearbox and the coach of the freewheel roller launcher.
  • This sleeve is engaged with the launcher driver via a link with splines and complementary helical teeth. This sleeve constitutes the output shaft of the starter.
  • the diameter of the pinion may be limited by the sleeve directed towards the outside of the bearing and partially surrounding the pinion.
  • the output shaft of the starter is in the axial extension of the output shaft of the electric motor, as can be seen for example in FIG. WO 2004/0881 supra.
  • the sleeve 312 is extended towards the front as in the document FR 2,764,946 .
  • the opening 312 affects the front transverse wall of the front bearing 12 of hollow form. This bearing is then globally shaped warhead in the front.
  • a seal can therefore be provided inside the front bearing and at the level of the needle bearing as in this document FR 2,764,946 .
  • the electromagnetic contactor extends in the embodiment of the figure 1 parallel to the electric motor of the starter being carried by the front bearing 12.
  • a return device between the fork and the movable core of the starter so that in this case the contactor extends to the rear of the engine electric.
  • the switch may include a coil surrounding the driver of the freewheel constituting the plunger of the contactor.
  • the starter may or may not be equipped with a speed reducer.
  • the freewheel of the starter is alternatively conical clutch intervening between the driver and the rear end of the sleeve as described for example in the document WO 03/002870 .
  • Assembly of the starter yoke with the front and rear bearings of the housing can be done in any way.
  • tie rods are provided (see figure 1 of the document US 4,818,889 ) or screws (See Figure 6 of the document WO 2004/088126 ) to assemble the rear bearing to the front bearing with interposition of the cylinder head.
  • the starter can be used to drive the internal combustion engine of a passenger vehicle, a truck, an agricultural tractor or a boat.
  • the starter variant is a starter for a fixed internal combustion engine used for example to drive a PTO.
  • the recess flange completely axially covers the outer periphery of the ring 60, 160.
  • the rim of the recess covers most of the outer periphery of the ring 60, 160.
  • the ring 60, 160 is projecting axially with respect to the pinion 18 while being housed for the most part in the recess.
  • the ring 60, 160 has in all cases at its outer periphery a front face which extends axially projecting with respect to the front face 183 of the pinion 18.
  • the pinion 18 can be obtained by any appropriate means, for example by extrusion, sintering, cutting in a bar or stamping.
  • the pinion may be mono material or bi material.
  • the splines of the pinion are alternatively in a material different from that of the sprocket teeth.
  • this pinion is obtained by bi-material sintering.
  • This embodiment is advantageous because the toothed portion of the pinion is chosen from a grade of material adapted to the needs of the gear with the ring gear 118 (wear resistance, low sound noise emission), while the part internal of the pinion comprising the grooves 167 and the housing 261 is chosen to be adapted to the requirements of sliding and mechanical strength, particularly for the support of the spring 61.
  • the second section 126 has a hardness different from the hardness of the first section 127 to promote a good sliding of the pinion 18.
  • the groove 129 is omitted, a rounded zone being provided for connecting the front face 130 of the section 127 to the section 126.
  • the spring 61 of the helical type in the figures, is alternatively of another type.
  • it consists alternatively in a stack of Belleville washers.
  • the axial offset of the groove 129 relative to the shoulder 130 allows in all cases the maintenance of the rear end of the spring 61 traversed by the section 126.
  • the sleeve is further provided because in the retracted position of rest the pinion 18 is in support directly or indirectly on the housing.
  • This spring 61 also makes it possible to dampen impacts, particularly when a tooth of the pinion comes into contact with a tooth of the crown. It allows aforementioned manner the mounting of the elastic ring 60, 160

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)
  • Mounting Of Bearings Or Others (AREA)
  • Support Of The Bearing (AREA)

Claims (15)

  1. Anlasser für einen Brennkraftmotor mit einem herausragenden Ritzel (18), das mittig gelocht ist, insbesondere für ein Kraftfahrzeug, der ein Gehäuse, das mit einem vorderen Lager (12) ausgestattet ist, das mit einer Vorderseite (120) versehen ist, die mit einer Öffnung (312) ausgestattet ist, einen Anwerfer, der mit einer Hülse (26) ausgestattet ist, die ein vorderes Ende (126, 127) aufweist, das die Öffnung (312) des vorderen Lagers (12) durchquert und das herausragende Ritzel (18) an die Außenseite des vorderen Lagers (12) bringt, komplementäre Rillen (67, 167), die jeweils zu dem Außenumfang des vorderen Endes der Hülse (26) und dem Innenumfang des herausragenden Ritzels (18) gehören, eine Kehle (64, 164), die die Rillen (67) der Hülse (26) zum Anbringen eines Anschlags (60, 160) zum axialen Immobilisieren des Ritzels unterbricht, eine Feder zum Spielausgleich (61), die das Ritzel in Kontakt mit dem Anschlag beaufschlagt, aufweist, wobei einerseits das vordere Ende der Hülse (26) eine Schulter (130) zum Aufliegen des hinteren Endes der Feder (61) aufweist und andererseits das Ritzel (18) auf der Rückseite eine Sackausnehmung (261) zum Anbringen der Feder (61) aufweist, dadurch gekennzeichnet, dass der Anschlag (60, 160) durch einen elastischen Ring mit einer Höhe gebildet ist, die größer als seine Dicke ist, dass der elastische Ring (60, 160) mit radialem Spiel mindestens teilweise in einer ringförmigen Einsenkung (62) angeordnet ist, die in der Vorderseite (183) des Ritzels (18) erstellt ist, und dass der Innenumfang des elastischen Rings (60, 160) in der Kehle (61, 161) der Hülse (26) angebracht ist.
  2. Anlasser nach Anspruch 1, dadurch gekennzeichnet, dass der Außenumfang des elastischen Rings (60, 160) vollständig in der Einsenkung (62) untergebracht ist.
  3. Anlasser nach Anspruch 1, dadurch gekennzeichnet, dass der Außenumfang des elastischen Rings (60, 160) größtenteils in der Einsenkung (62) untergebracht ist.
  4. Anlasser nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Außendurchmesser des elastischen Rings (60, 160) größer als der Außendurchmesser der Feder zum Spielausgleich (61) ist.
  5. Anlasser nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das vordere Lager (12) eine Muffe (112) aufweist, die in eine Richtung gerichtet ist, die entgegengesetzt zum Ritzel (18) ist, und dass die Öffnung (312) des vorderen Lagers (12) durch die innere Bohrung der Muffe (112) des vorderen Lagers (12) gebildet ist.
  6. Anlasser nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der elastische Ring (60) gespalten ist.
  7. Anlasser nach Anspruch 6, dadurch gekennzeichnet, dass der elastische Ring (60) ein Sicherungsring ist.
  8. Anlasser nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der elastische Ring (160) geneigte Laschen an seinem Innenumfang aufweist.
  9. Anlasser nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Flanken der Kehle (64, 164) parallel sind und dass die Kehle (64, 164) tiefer als die Rillen (67) der Hülse (126) sind.
  10. Anlasser nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das vordere Ende (127, 126) der Hülse (26) im Durchmesser abgestuft ist und einen ersten Abschnitt (127) aufweist, der axial durch einen zweiten Abschnitt (126) von kleinerem Durchmesser verlängert ist, auf dem die Rillen (67) der Hülse (26) erstellt sind, und dass die Schulter (130) der Hülse (26) durch die Vorderseite des ersten Abschnitts (127) gebildet ist.
  11. Anlasser nach Anspruch 10, dadurch gekennzeichnet, dass der zweite Abschnitt (126) eine Kehle (129) aufweist, deren hinteres Ende angrenzend an die Vorderseite (130) des ersten Abschnitts (127) ist, und dass die Kehle (129) zum Zentrieren des hinteren Endes der Feder (61) axial gegenüber der Schulter (130) versetzt ist.
  12. Anlasser nach Anspruch 11, dadurch gekennzeichnet, dass ein Sitz zum Halten des hinteren Endes der Feder (61) zwischen der Schulter (130) und der Kehle (129) besteht.
  13. Anlasser nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass der Außendurchmesser des zweiten Abschnitts (126) größer als der Innendurchmesser des ersten Abschnitts (127) ist.
  14. Anlasser nach einem der Ansprüche 10 bis 13, dadurch gekennzeichnet, dass das vordere Lager (12) eine Stütze (181) für das Ritzel (18) aufweist.
  15. Anlasser nach Anspruch 14, dadurch gekennzeichnet, dass die Stütze durch eine Unterlegscheibe (181) aus Elastomer gebildet ist, die in einer ringförmigen querverlaufenden Aussparung (212), die in der Vorderseite des vorderen Lagers (12) erstellt ist, montiert ist.
EP11713005.4A 2010-03-19 2011-03-15 Anlasser für einen brennkraftmotor mit einem vom startergehäuse herausragenden andrehritzel Active EP2547896B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1051975A FR2957638B1 (fr) 2010-03-19 2010-03-19 Demarreur de moteur thermique a pignon sortant
PCT/FR2011/050513 WO2011114052A2 (fr) 2010-03-19 2011-03-15 Demarreur de moteur thermique a pignon sortant

Publications (2)

Publication Number Publication Date
EP2547896A2 EP2547896A2 (de) 2013-01-23
EP2547896B1 true EP2547896B1 (de) 2016-04-27

Family

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EP11713005.4A Active EP2547896B1 (de) 2010-03-19 2011-03-15 Anlasser für einen brennkraftmotor mit einem vom startergehäuse herausragenden andrehritzel

Country Status (6)

Country Link
US (1) US9080543B2 (de)
EP (1) EP2547896B1 (de)
JP (1) JP2013522529A (de)
CN (1) CN102812234B (de)
FR (1) FR2957638B1 (de)
WO (1) WO2011114052A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011017534B4 (de) * 2011-04-26 2020-06-04 Seg Automotive Germany Gmbh Startvorrichtung für eine Brennkraftmaschine
JP5762371B2 (ja) * 2012-08-29 2015-08-12 三菱電機株式会社 エンジン始動装置
FR3012534B1 (fr) * 2013-10-31 2015-11-13 Valeo Equip Electr Moteur Dispositif d'arret axial sur un abre et demarreur comportant un tel dispositif
US20160115934A1 (en) * 2014-10-24 2016-04-28 Remy Technologies, L.L.C. Internal combustion engine having a starter motor and method
JP6076446B1 (ja) * 2015-12-03 2017-02-08 三菱電機株式会社 スタータ

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
GB225757A (en) * 1924-03-17 1924-12-11 Eclipse Machine Co Improvements in engine starters
JPS63219871A (ja) * 1987-03-10 1988-09-13 Mitsubishi Electric Corp スタ−タ装置
US4818889A (en) * 1987-05-13 1989-04-04 Mitsubishi Denki Kabushiki Kaisha Pinion stopper for engine starter motor
JPH0649908Y2 (ja) * 1988-01-21 1994-12-14 三菱電機株式会社 スタータ装置
US4958530A (en) * 1989-08-31 1990-09-25 Ford Motor Company Moisture seal for a translatable pinion gear assembly in a starter motor
US5163335A (en) * 1991-07-15 1992-11-17 Patrick D. Isom Universal starter motor assembly
JPH06213114A (ja) * 1993-01-20 1994-08-02 Hitachi Ltd ピニオンストッパー装置
JPH06249112A (ja) * 1993-02-26 1994-09-06 Mitsubishi Electric Corp 始動電動機
FR2738599B1 (fr) * 1995-09-12 1997-10-03 Valeo Equip Electr Moteur Demarreur de vehicule automobile comportant un lanceur perfectionne et lanceur pour un tel demarreur
JP4453227B2 (ja) * 2000-10-20 2010-04-21 株式会社デンソー スタータ
US6450914B1 (en) * 2001-01-16 2002-09-17 Spicer Technology, Inc. Adjustable axle shaft endplay
JP2004183586A (ja) * 2002-12-05 2004-07-02 Denso Corp スタータ
JP4134903B2 (ja) * 2003-12-25 2008-08-20 株式会社デンソー スタータ
JP2006233930A (ja) * 2005-02-28 2006-09-07 Denso Corp スタータ
CN2931834Y (zh) * 2006-06-13 2007-08-08 锦州汉拿电机有限公司 起动机起动齿轮定位结构
KR20080110080A (ko) * 2007-06-14 2008-12-18 현대자동차주식회사 차량용 시저스 기어
JP2013083177A (ja) * 2011-10-07 2013-05-09 Denso Corp スタータ

Also Published As

Publication number Publication date
FR2957638A1 (fr) 2011-09-23
EP2547896A2 (de) 2013-01-23
CN102812234A (zh) 2012-12-05
FR2957638B1 (fr) 2012-03-09
CN102812234B (zh) 2015-05-27
US20130091967A1 (en) 2013-04-18
JP2013522529A (ja) 2013-06-13
WO2011114052A3 (fr) 2012-07-12
WO2011114052A2 (fr) 2011-09-22
US9080543B2 (en) 2015-07-14

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