FR2574483A1 - Electrical starter with two motors - Google Patents

Electrical starter with two motors Download PDF

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Publication number
FR2574483A1
FR2574483A1 FR8418848A FR8418848A FR2574483A1 FR 2574483 A1 FR2574483 A1 FR 2574483A1 FR 8418848 A FR8418848 A FR 8418848A FR 8418848 A FR8418848 A FR 8418848A FR 2574483 A1 FR2574483 A1 FR 2574483A1
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FR
France
Prior art keywords
motor
launcher
pinion
shaft
electric starter
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Withdrawn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
FR8418848A
Other languages
French (fr)
Inventor
Alfred Bruno Mazzorana
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.)
Societe de Paris et du Rhone SA
Original Assignee
Societe de Paris et du Rhone SA
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 Societe de Paris et du Rhone SA filed Critical Societe de Paris et du Rhone SA
Priority to FR8418848A priority Critical patent/FR2574483A1/en
Priority to US06/800,196 priority patent/US4684816A/en
Priority to DE19853541228 priority patent/DE3541228A1/en
Priority to JP27585585A priority patent/JPS61138877A/en
Publication of FR2574483A1 publication Critical patent/FR2574483A1/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00Starting of engines by means of electric motors
    • F02N11/006Starting of engines by means of electric motors using a plurality of electric motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02NSTARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N15/00Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The first motor 18 operates a reduction gear 14, 17, 19, the output gear 14 of which comprises a hub provided with a bore with helical grooves, which acts in concert with the complementary form of the periphery of the tubular bushing 6 of the driver 2, the shaft 9 along which the latter slides having an area 8 with straight ribs which engages in the axial ribs 7 arranged in the bore of the tubular bushing 6, whilst the shaft 9 of the driver is firmly attached to the output gear of a reduction gear 11 operated by the second motor 12. Electrical starter for heat engine.

Description

La présente invention est relative à des perfectionnements apportés aux démarreurs électriques pour moteurs thermiques et elle vise plus particulièrement les démarreurs du genre en question qui comportent deux moteurs électriques de commande. The present invention relates to improvements made to electric starters for internal combustion engines and it relates more particularly to starters of the type in question which comprise two electric control motors.

On connait, par exemple par le brevet américain 2 302 680, des démarreurs du genre en question dont l'un des moteurs sert à l'avancement du lanceur par rotation d'un écrou longitudinalement fixe coopérant avec un filetage externe d'une douille montée autour de l'arbre de l'induit du moteur principal. La puissance des deux moteurs s'ajoute pour transmettre un effort accru au pignon du lanceur. Un tel démarreur est complexe car le moteur auxiliaire actionne l'écrou par l'intermédiaire d'un renvoi d'angle denté dont la réalisation est onéreuse et le montage délicat. Un tel démarreur ne peut pas permettre l'utilisation d'un réducteur associé à l'arbre de l'induit du moteur principal, de telle sorte que ce dernier doit être largement dimensionné. We know, for example from US Patent 2,302,680, starters of the kind in question, one of the motors of which is used for advancing the launcher by rotation of a longitudinally fixed nut cooperating with an external thread of a mounted socket around the armature shaft of the main motor. The power of the two motors is added to transmit an increased force to the pinion of the starter. Such a starter is complex because the auxiliary motor actuates the nut by means of a toothed angle gear, the construction of which is expensive and the assembly delicate. Such a starter cannot allow the use of a reduction gear associated with the armature shaft of the main motor, so that the latter must be largely dimensioned.

Suivant l'invention, le premier moteur actionne un réducteur dont la roue de sortie comporte un moyeu à alésage cannelé de manière hélicoldale qui coopère avec la périphérie de forme complémentaire de la queue tubulaire du lanceur, l'arbre le long duquel coulisse ce dernier comprenant une portée à nervures droites qui s'engage dans des rainures axiales ménagées dans l'alésage de la queue tubulaire précitée, tandis que l'arbre du lanceur est solidaire de la roue de sortie d'un réducteur actionné par le second moteur. According to the invention, the first motor actuates a reduction gear whose output wheel comprises a hub with helically grooved bore which cooperates with the periphery of complementary shape of the tubular tail of the launcher, the shaft along which slides the latter comprising a bearing with straight ribs which engages in axial grooves formed in the bore of the aforementioned tubular tail, while the starter shaft is integral with the output wheel of a reduction gear actuated by the second motor.

Le dessin annexé, donné à titre d'exemple, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer
Fig. 1 est une coupe transversale d'un démarreur électrique comportant application des perfectionnements suivant l'invention.
The appended drawing, given by way of example, will allow a better understanding of the invention, the characteristics which it presents and the advantages which it is capable of providing.
Fig. 1 is a cross section of an electric starter comprising application of improvements according to the invention.

Fig. 2 illustre un dispositif de freinage de la roue de sortie du réducteur actionnée par le second moteur. Fig. 2 illustrates a device for braking the output wheel of the reduction gear actuated by the second motor.

Fig. 3 en est une coupe suivant III-III (Fig.- 2). Fig. 3 is a section on III-III (Fig. 2).

On a illustré en fig. 1 un démarreur électrique pour moteur thermique comportant un carter 1 renfermant les divers mécanismes d'actionnement du lanceur 2 du démarreur en question, ce lanceur étant pourvu à la manière usuelle d'un pignon 3 destiné à venir en prise avec une couronne 4 associée au moteur thermique. Le lanceur 2 comporte, comme à l'accoutumée, une roue libre 5 à cage extérieure 5a solidaire d'une queue tubulaire 6 dont l'alésage interne comporte des rainures droites 7. ladite queue peut donc coulisser par rapport à une portée 8 pourvue de rainures complémentaires à celles 7 et qui fait partie d'un arbre 9 solidaire de la roue de sortie 10 d'un réducteur 11 entraîné par le second moteur 12 du réducteur suivant l'invention.L'arbre 9 comporte une partie 9a à diamètre réduit le long de laquelle coulisse le prolongement de la piste intérieure 5b de la roue libre 5, ce prolongement constituant support pour le coulissement du lanceur 2. Illustrated in fig. 1 an electric starter for an internal combustion engine comprising a casing 1 containing the various mechanisms for actuating the starter 2 of the starter in question, this starter being provided in the usual manner with a pinion 3 intended to engage with a crown 4 associated with the thermal motor. The launcher 2 comprises, as usual, a freewheel 5 with an external cage 5a secured to a tubular tail 6 whose internal bore has straight grooves 7. said tail can therefore slide relative to a bearing surface 8 provided with grooves complementary to those 7 and which is part of a shaft 9 integral with the output wheel 10 of a reduction gear 11 driven by the second motor 12 of the reduction gear according to the invention. The shaft 9 comprises a part 9a with reduced diameter along which slides the extension of the inner track 5b of the freewheel 5, this extension constituting support for the sliding of the launcher 2.

La périphérie de la douille 6 est pourvue de rainures hélicoidales 13 qui sont en prise avec des nervures complémentaires 14a ménagées dans l'alésage d'une roue dentée 14, comportant un manchon tubulaire 14b à plus grand diamètre dont la périphérie coopère avec un palier 15 solidaire du carter 1 par l'intermédiaire d'un coussinet 16. The periphery of the sleeve 6 is provided with helical grooves 13 which are engaged with complementary ribs 14a formed in the bore of a toothed wheel 14, comprising a tubular sleeve 14b with a larger diameter whose periphery cooperates with a bearing 15 secured to housing 1 by means of a bearing 16.

La denture périphérique 14c de la roue 14 est en prise avec le pignon de sortie 17 du premier moteur 18 par l'intermédiaire d'un pignon double 19. The peripheral toothing 14c of the wheel 14 is engaged with the output pinion 17 of the first motor 18 by means of a double pinion 19.

On observe que le pignon double 19 est monté libre sur un arbre 20 autour duquel tourillonne un second pignon double 21 faisant partie du réducteur 11. It can be seen that the double pinion 19 is mounted free on a shaft 20 around which a second double pinion 21 which forms part of the reducer 11 journals.

Le fonctionnement est le suivant
Le moteur 18 est d'abord mis sous tension, ce qui provoque la rotation de la roue 14. Comme la douille 6 est immobilisée en rotation par les frottements, la coopération des rainures hélicoldales 13 avec celles complémentaires 14a de ladite roue provoque le déplacement longitudinal du lanceur 2 en direction de la gauché, de sorte que son pignon 3 vient, à la manière habituelle, en prise avec la grande couronne 4 du moteur thermique. A ce moment, le moteur 12 est mis sous tension pour faire tourner l'arbre 9 qui, par l'intermédiaire des rainures droites de sa portée 8, entrasse la rotation de la douille 6 et par conséquent celle du pignon 3 qui commande la grande couronne 4 et le démarrage du moteur thermique.On note qu'alors les couples développés par les-deux moteurs s'appliquent sur le pignon 3.
The operation is as follows
The motor 18 is first put under tension, which causes the rotation of the wheel 14. As the sleeve 6 is immobilized in rotation by friction, the cooperation of the helical grooves 13 with those complementary 14a of said wheel causes the longitudinal displacement of the launcher 2 in the direction of the left, so that its pinion 3 comes, in the usual way, in engagement with the large crown 4 of the heat engine. At this time, the motor 12 is energized to rotate the shaft 9 which, by means of the straight grooves of its bearing surface 8, overlaps the rotation of the sleeve 6 and consequently that of the pinion 3 which controls the large crown 4 and starting the heat engine. Note that the torques developed by the two motors then apply to the pinion 3.

I1 est évident que l'avancement du lanceur ne peut s'effectuer que si l'arbre 9 est immobile en rotation. Comme indiqué plus haut, les divers frottements peuvent permettre cette immobilisation angulaire, mais on peut associer à la roue 10 un dispositif d'immobilisation 22 illustré en fig. 2 et 3. It is obvious that the advancement of the launcher can only take place if the shaft 9 is stationary in rotation. As indicated above, the various frictions can allow this angular immobilization, but it is possible to associate with the wheel 10 an immobilizing device 22 illustrated in FIG. 2 and 3.

Le dispositif 22 s'adapte au pignon 10 engrenant avec la roue 21 du réducteur 11. L'un des flancs du pignon 10 porte deux axes diamétrale, ment opposés 24 autour desquels sont montés à basculement deux sabots 25 propres à coopérer avec une jante fixe 26, par exemple solidaire du carter I grâce à la présence de deux ressorts de traction 27. Les sabots 25 sont dissvmétriques, ctest-a-dire que la distance séparant leur partie active ou patin 25a qui coopère avec la jante 26 est largement inférieure à celle qui sépare Itaxe en question de la partie carrière 25b desdits sabots.De cette marnière, lorsque la roue 10 tourne entraînée par la roue 1, la force centrifuge fait basculer les sabots, de telle sorte que leur patins 2fa quittent la jante 26. La course vers l'extérieur des sabots est limitée par des pions 28 engagés dans des encoches de ces sabots. Ainsi, pour revenir au fonctionnement ci-dessus, lorsque la roue l tourne, elle fait obligatoirement avancer le lanceur 2 du fait que la portée 8-de lrarbre 9 est immobilisée en rotation par le dispositif 22. The device 22 adapts to the pinion 10 meshing with the wheel 21 of the reduction gear 11. One of the sides of the pinion 10 carries two diametrical axes, opposite opposite 24 around which two shoes 25 are mounted to tilt capable of cooperating with a fixed rim 26, for example secured to the casing I by virtue of the presence of two tension springs 27. The shoes 25 are dissymmetrical, that is to say that the distance separating their active part or shoe 25a which cooperates with the rim 26 is much less than that which separates Itaxe in question from the quarry part 25b of the said shoes. From this hinge, when the wheel 10 rotates driven by the wheel 1, the centrifugal force causes the shoes to tilt, so that their pads 2fa leave the rim 26. The outward travel of the hooves is limited by pins 28 engaged in the notches of these hooves. Thus, to return to the above operation, when the wheel 1 rotates, it obligatorily causes the launcher 2 to advance because the range 8 of the shaft 9 is immobilized in rotation by the device 22.

Une fois que le moteur thermique a démarré a la maniere usuelle, la roue libre 5 désolidarise le pignon 3 de l'arbre 9 et un ressort de compression 29 disposé entre une portée 14d de la roue 14 et une butée 30 solidaire de la douille 6 provoque le retour a sa position initiale du lanceur lors de l'arrêt des moteurs 18 et 12. La butée 30 constitue une limite d'avancement du lanceur du fait qu'elle vient buter sur l'arête libre du manchon 14b de la roue 14. Once the heat engine has started in the usual way, the freewheel 5 separates the pinion 3 from the shaft 9 and a compression spring 29 disposed between a bearing 14d of the wheel 14 and a stop 30 integral with the sleeve 6 causes the launcher to return to its initial position when the engines 18 and 12 stop. The stop 30 constitutes a limit on the advance of the launcher because it abuts on the free edge of the sleeve 14b of the wheel 14 .

Il doit d'ailleurs tre entendu que la description qui précède n'a été-donnée qu' titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tous autres équivalents.  It should moreover be understood that the foregoing description has been given only by way of example and that it in no way limits the field of the invention from which one would not depart by replacing the execution details described by all other equivalents.

Claims (5)

REVENDICATIONS 1. Démarreur électrique à deux moteurs (18, 12) dont l'un (18) sert à l'avancement du lanceur (2) par rotation d'un écrou longitudinalement fixe, tandis que ledit lanceur est entrasse en rotation par le second moteur (12), caractérisé en ce que le premier moteur (18) actionne un réducteur (17, 19, 14) dont la roue de sortie (14) comporte un moyeu pourvu d'un alésage à cannelures hélicoldales (14a) qui coopère avec la périphérie de forme complémentaire de la douille tubulaire (6) du lanceur (2), l'arbre (9) le long duquel coulisse ce dernier comprenant une portée (8) à nervures droites qui s'engagent dans des rainures axiales (7) ménagées dans l'alésage de la douille tUbulaire précitée, tandis que l'arbre (9) du lanceur est solidaire de la roue de sortie (10) d'un réducteur (11) actionné par le second moteur (12). 1. Electric starter with two motors (18, 12) one of which (18) is used to advance the launcher (2) by rotation of a longitudinally fixed nut, while said launcher is driven in rotation by the second motor (12), characterized in that the first motor (18) actuates a reduction gear (17, 19, 14), the output wheel (14) of which comprises a hub provided with a bore with helical grooves (14a) which cooperates with the periphery of complementary shape of the tubular sleeve (6) of the launcher (2), the shaft (9) along which slides the latter comprising a bearing surface (8) with straight ribs which engage in axial grooves (7) formed in the bore of the aforementioned tubular bushing, while the shaft (9) of the launcher is integral with the output wheel (10) of a reduction gear (11) actuated by the second motor (12). 2. Démarreur électrique suivant la revendication 1, caractérisé en ce que la douille tubulaire (6) porte une hutée annulaire (30) qui vient en appui contre un manchon (14b) de la roue de sortie (14) du réducteur entraîné par le premier moteur (18), un ressort de rappel (29) étant placé entre cette butée et la roue (14).  2. Electric starter according to claim 1, characterized in that the tubular sleeve (6) carries an annular hute (30) which abuts against a sleeve (14b) of the output wheel (14) of the reducer driven by the first motor (18), a return spring (29) being placed between this stop and the wheel (14). 3. Démarreur électrique suivant la revendication 1, caractérisé en ce que la roue de sortie (14) du réducteur entraîné par le premier moteur (18) tourillonne par rapport a un palier tubulaire (15) solidaire du carter (1) du démarreur. 3. Electric starter according to claim 1, characterized in that the output wheel (14) of the reducer driven by the first motor (18) journalled relative to a tubular bearing (15) integral with the casing (1) of the starter. 4. Démarreur électrique suivant la revendication 1, caractérisé en ce que le pignon de sortie (10-) du réducteur (11) est associé a un frein a inertie (22) qui se desserre quand ledit pignon se met à tourner. 4. Electric starter according to claim 1, characterized in that the output pinion (10-) of the reducer (11) is associated with an inertia brake (22) which is released when said pinion starts to rotate. 5. Démarreur électrique suivant la revendication 1, caractérisé en ce que les couples développés par les deux moteurs (12, 18) s'appliquent sur le pignon (3) une fois que celui-ci engrène avec la grande couronne (4) du moteur thermique.  5. Electric starter according to claim 1, characterized in that the torques developed by the two motors (12, 18) are applied to the pinion (3) once it meshes with the large crown (4) of the motor thermal.
FR8418848A 1984-12-06 1984-12-06 Electrical starter with two motors Withdrawn FR2574483A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR8418848A FR2574483A1 (en) 1984-12-06 1984-12-06 Electrical starter with two motors
US06/800,196 US4684816A (en) 1984-12-06 1985-11-21 Starter with two motors
DE19853541228 DE3541228A1 (en) 1984-12-06 1985-11-21 ELECTRIC STARTER WITH TWO DRIVE MOTORS
JP27585585A JPS61138877A (en) 1984-12-06 1985-12-06 Method of starting heat engine and electric starter therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8418848A FR2574483A1 (en) 1984-12-06 1984-12-06 Electrical starter with two motors

Publications (1)

Publication Number Publication Date
FR2574483A1 true FR2574483A1 (en) 1986-06-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR8418848A Withdrawn FR2574483A1 (en) 1984-12-06 1984-12-06 Electrical starter with two motors

Country Status (2)

Country Link
JP (1) JPS61138877A (en)
FR (1) FR2574483A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562475A1 (en) * 1992-03-19 1993-09-29 Mitsubishi Denki Kabushiki Kaisha Starting motor
US6272940B1 (en) * 1998-05-20 2001-08-14 Starting Industrial Co., Ltd. Starting device for electric starter motor
DE102004033720A1 (en) * 2004-07-13 2006-02-16 Adam Opel Ag Starter arrangement for internal combustion engine e.g. of motor vehicle has starter coupled with first drive connection and a generator placed over second drive connection whereby a third drive connection is also provided

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0735764B2 (en) * 1985-09-09 1995-04-19 日本電装株式会社 Switch device for starter
US4855609A (en) * 1987-03-18 1989-08-08 Mitsuba Electric Mfg. Co., Ltd. Starter for internal combustion engine
JP4728097B2 (en) * 2005-11-04 2011-07-20 カルソニックカンセイ株式会社 Compressor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769437A (en) * 1954-09-01 1956-11-06 Studebaker Packard Corp Starter gear mechanism
US2907891A (en) * 1956-09-24 1959-10-06 Continental Motors Corp Engine starting system
JPS5647658A (en) * 1979-09-28 1981-04-30 Hitachi Ltd Starting motor for internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769437A (en) * 1954-09-01 1956-11-06 Studebaker Packard Corp Starter gear mechanism
US2907891A (en) * 1956-09-24 1959-10-06 Continental Motors Corp Engine starting system
JPS5647658A (en) * 1979-09-28 1981-04-30 Hitachi Ltd Starting motor for internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 5, no. 105 (M-77) [777], 8 juillet 1981; & JP - A - 56 47 658 (HITACHI SEISAKUSHO K.K.) 30-4-1981 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0562475A1 (en) * 1992-03-19 1993-09-29 Mitsubishi Denki Kabushiki Kaisha Starting motor
US5370009A (en) * 1992-03-19 1994-12-06 Mitsubishi Denki Kabushiki Kaisha Starting motor
US6272940B1 (en) * 1998-05-20 2001-08-14 Starting Industrial Co., Ltd. Starting device for electric starter motor
DE102004033720A1 (en) * 2004-07-13 2006-02-16 Adam Opel Ag Starter arrangement for internal combustion engine e.g. of motor vehicle has starter coupled with first drive connection and a generator placed over second drive connection whereby a third drive connection is also provided

Also Published As

Publication number Publication date
JPS61138877A (en) 1986-06-26

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