EP0012046A1 - Elektrischer Anlasser für Brennkraftmaschinen, insbesondere für Kraftfahrzeuge - Google Patents
Elektrischer Anlasser für Brennkraftmaschinen, insbesondere für Kraftfahrzeuge Download PDFInfo
- Publication number
- EP0012046A1 EP0012046A1 EP79400763A EP79400763A EP0012046A1 EP 0012046 A1 EP0012046 A1 EP 0012046A1 EP 79400763 A EP79400763 A EP 79400763A EP 79400763 A EP79400763 A EP 79400763A EP 0012046 A1 EP0012046 A1 EP 0012046A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- starter
- engagement element
- supplied
- induced
- braking device
- 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.)
- Granted
Links
Images
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
-
- 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
Definitions
- the present invention relates to an improvement to electric starters for internal combustion engines, in particular for motor vehicles, type starters comprising an electromagnetic braking device consisting of a fixed inductor circuit supplied simultaneously with the electric circuit of the starter and an induced element movable integral with a meshing element, the connection of the meshing element and the starter armature shaft being ensured by helical grooves in such a way that said meshing element can perform relative to the armature shaft a movement of axial displacement and rotation between a rest position and a working position in which, during operation, the pinion of the engagement element meshes with the ring gear of the motor to be started.
- Such an electromagnetic braking device is known, in particular from French patent n ° 73.18923, device in which the movable armature element is in the form of a disc carrying four arms forming salient poles which cooperate with two pole pieces fixed in a magnetic carcass, this carcass being held in the starter support.
- An inductor winding supplied simultaneously with the electric circuit of the starter, surrounds the fixed pole pieces so as to create a magnetic braking field.
- the disadvantage of such a device is that the number of arms, forming the salient poles, being low kinetic energy, created by the angular displacement between the rest position of the engagement element and the position of least reluctance of the magnetic braking circuit, reaches a thief that does not effectively brake the engagement element and that in the working position, that is to say when the pinion is engaged don the crown gear, the magnetic force of axial support, in this working position can be very low if the disc, relative to the axis of the polar masses, is angularly between two arms forming the salient poles.
- the invention aims to remedy this drawback and for this purpose relates to an improvement to electric starters of the type comprising an electromagnetic braking device consisting of a fixed inductor circuit, supplied simultaneously with the electric circuit of the starter and an element movable armature integral with a meshing element, characterized in that the movable armature element comprises a peripheral part folded down parallel to the axis of rotation of said armature element, which peripheral part comprises a first cylindrical zone made up of polar teeth capable of produce a magnetic braking ensuring an axial displacement of the meshing element and a second cylindrical zone forming a continuous ring of material, so that the meshing element is held axially in its working position as long as the starter is supplied .
- the polar teeth of the induced movable element, integral with the engagement element have a width corresponding to a thief's polar arc such that the magnetic braking device has an angular position of least reluctance, the number of teeth being judiciously determined so that the nail traversed between the rest position and the position of least reluctance is as low as possible so that the value of the kinetic energy is less than the magnetic braking force.
- the starter comprises, in a known manner, a support 1 (see FIG. 1), an armature shaft 2 journalling, by its meshing side, in a bearing 3 integral with the support 1, an armature 4 mounted on the shaft 2, a meshing element 5, comprising a pinion 5a and a sleeve 5b which, connected or pinion 5a, by means of a free wheel 5c, is capable of sliding by being screwed on the shaft 2, by helical grooves 2a.
- a stop 6, which is supported at the end of the race, the engagement element 5 is arranged towards the end of the shaft 2.
- the restoring force exerted by the spring 10 is transmitted to the engagement element 5 by means of the part 11 rotatably mounted on a bearing 9, so as to transmit said force to the induced movable element 7.
- the role of the bearing 9 is to allow the rotation of the engagement element 5 while leaving the spring 10 immobile in rotation.
- the induced movable element 7 comprises a peripheral part folded down parallel to the axis of rotation of said element, which peripheral part comprises a first cylindrical zone 7a made up of polar teeth 7b ( see Fig. 1 and 3) capable of producing magnetic braking ensuring axial displacement of the engagement element from the rest position to the working position, by means of the helical grooves 2a.
- the peripheral part comprises a second cylindrical zone 7c (see fig. 1) forming a continuous ring of material, so that the engagement element 5 is kept axially in the working position as long as the starter is supplied, and consequently the inductor winding 13.
- the meshing element 5 (see fig. 2) is immobilized in its stroke by the toothed crown 15 of the motor, that is to say if the teeth of the pinions 5a abut against those of the crown 15 the element d 'mesh 5 integral with the armature shaft 2, via the helical ccnnelures 2a, drives the pinion 5a in rotation, the torque developed by the armature being greater than the magnetic braking force.
- the pinion 5a rotates until it enters the ring 15 by the action of the element 7, which ensures the centering of the peripheral zone 7c, forming a continuous ring of material, in the axis of the polar masses 12 and 12a.
- the purpose of the clearance J o is to avoid rapid wear, by friction, of the faces in contact with the stop and the pinion, the toothed crown driving the pinion at a speed of rotation considerably greater than the speed of rotation of the armature.
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)
- Braking Arrangements (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7833657 | 1978-11-29 | ||
FR7833657A FR2442973A1 (fr) | 1978-11-29 | 1978-11-29 | Perfectionnement aux demarreurs electriques pour moteurs a combustion interne notamment de vehicules automobiles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0012046A1 true EP0012046A1 (de) | 1980-06-11 |
EP0012046B1 EP0012046B1 (de) | 1981-04-29 |
Family
ID=9215483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19790400763 Expired EP0012046B1 (de) | 1978-11-29 | 1979-10-18 | Elektrischer Anlasser für Brennkraftmaschinen, insbesondere für Kraftfahrzeuge |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0012046B1 (de) |
DE (1) | DE2960318D1 (de) |
FR (1) | FR2442973A1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1378661A1 (de) * | 2002-07-03 | 2004-01-07 | Valeo Equipements Electriques Moteur | Anlasssystem mit einer Steuervorrichtung getrennt von dem Anlasser |
FR2841941A1 (fr) * | 2002-07-03 | 2004-01-09 | Valeo Equip Electr Moteur | Demarreur a lanceur perfectionne pour un moteur a combustion interne |
FR2858366A1 (fr) * | 2003-07-28 | 2005-02-04 | Valeo Equip Electr Moteur | Systeme de demarrage a poulie et courroie pour un moteur thermique de vehicule automobile |
CN104500305A (zh) * | 2014-10-18 | 2015-04-08 | 锦州汉拿电机有限公司 | 反转复位式无电磁开关起动机 |
CN104500304A (zh) * | 2014-10-18 | 2015-04-08 | 锦州汉拿电机有限公司 | 弹簧复位式无电磁开关起动机 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB818595A (en) * | 1956-05-14 | 1959-08-19 | Simms Motor Units Ltd | Improvements in or relating to coupling means for starter-motors |
FR2010287A1 (de) * | 1968-06-06 | 1970-02-13 | Bendix Corp | |
GB1249847A (en) * | 1969-04-04 | 1971-10-13 | Bendix Corp | Starter drive for internal combustion engines with positive advance and inertia release |
FR2207529A5 (de) * | 1972-11-17 | 1974-06-14 | Paris & Du Rhone |
-
1978
- 1978-11-29 FR FR7833657A patent/FR2442973A1/fr active Granted
-
1979
- 1979-10-18 EP EP19790400763 patent/EP0012046B1/de not_active Expired
- 1979-10-18 DE DE7979400763T patent/DE2960318D1/de not_active Expired
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB818595A (en) * | 1956-05-14 | 1959-08-19 | Simms Motor Units Ltd | Improvements in or relating to coupling means for starter-motors |
FR2010287A1 (de) * | 1968-06-06 | 1970-02-13 | Bendix Corp | |
GB1249847A (en) * | 1969-04-04 | 1971-10-13 | Bendix Corp | Starter drive for internal combustion engines with positive advance and inertia release |
FR2207529A5 (de) * | 1972-11-17 | 1974-06-14 | Paris & Du Rhone |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1378661A1 (de) * | 2002-07-03 | 2004-01-07 | Valeo Equipements Electriques Moteur | Anlasssystem mit einer Steuervorrichtung getrennt von dem Anlasser |
FR2841941A1 (fr) * | 2002-07-03 | 2004-01-09 | Valeo Equip Electr Moteur | Demarreur a lanceur perfectionne pour un moteur a combustion interne |
FR2858366A1 (fr) * | 2003-07-28 | 2005-02-04 | Valeo Equip Electr Moteur | Systeme de demarrage a poulie et courroie pour un moteur thermique de vehicule automobile |
WO2005015005A1 (fr) * | 2003-07-28 | 2005-02-17 | Valeo Equipements Electriques Moteur | Systeme de demarrage a poulie et courroie pour un moteur thermique de vehicule automobile |
CN104500305A (zh) * | 2014-10-18 | 2015-04-08 | 锦州汉拿电机有限公司 | 反转复位式无电磁开关起动机 |
CN104500304A (zh) * | 2014-10-18 | 2015-04-08 | 锦州汉拿电机有限公司 | 弹簧复位式无电磁开关起动机 |
Also Published As
Publication number | Publication date |
---|---|
FR2442973A1 (fr) | 1980-06-27 |
DE2960318D1 (en) | 1981-08-06 |
FR2442973B1 (de) | 1985-01-18 |
EP0012046B1 (de) | 1981-04-29 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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AK | Designated contracting states |
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ITCL | It: translation for ep claims filed |
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ITF | It: translation for a ep patent filed |
Owner name: ING. ZINI MARANESI & C. S.R.L. |
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REF | Corresponds to: |
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