EP0160130B1 - Distributeur d'ignition pour moteur à combustion interne - Google Patents

Distributeur d'ignition pour moteur à combustion interne Download PDF

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Publication number
EP0160130B1
EP0160130B1 EP84116271A EP84116271A EP0160130B1 EP 0160130 B1 EP0160130 B1 EP 0160130B1 EP 84116271 A EP84116271 A EP 84116271A EP 84116271 A EP84116271 A EP 84116271A EP 0160130 B1 EP0160130 B1 EP 0160130B1
Authority
EP
European Patent Office
Prior art keywords
rotor
ignition
shaft
ignition distributor
distributor
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.)
Expired
Application number
EP84116271A
Other languages
German (de)
English (en)
Other versions
EP0160130A1 (fr
Inventor
Hartmut Brammer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0160130A1 publication Critical patent/EP0160130A1/fr
Application granted granted Critical
Publication of EP0160130B1 publication Critical patent/EP0160130B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/021—Mechanical distributors

Definitions

  • the invention is based on an ignition distributor according to the preamble of claim 1.
  • Such an ignition distributor is known from AU-A-509798.
  • the insulation shield provided there has the task of avoiding voltage discharges via a shunt by extending the distance between the potentials.
  • an intermediate flange is connected between the housing of the ignition distributor and the end cap made of insulating material, which has a central opening through which the rotor can be inserted and connected to the shaft of the ignition distributor.
  • This is an ignition distributor of a known type, in which the rotor is only plugged onto the end of the shaft of the distributor. In such a case, the rotor can be dismantled without great effort by removing the end cap from the intermediate flange and pulling off the ignition distributor.
  • the object of the invention is to further develop the generic ignition distributor in such a way that a structural unit consisting of a rotor and an aperture-type transmitter element can remain unchanged when assembled or disassembled as a structural unit.
  • the ignition distributor according to the invention for solving the specified object has the advantage that a minimum distance between the electrode of the rotor and the signal transmitter is maintained to prevent electrical flashovers and that a very low overall height of the ignition distributor can nevertheless be achieved.
  • the rotor and the signal transmitter can remain unchanged as a structural unit during assembly or disassembly of the insulation shield. This has significant advantages, especially when servicing or repairing the distributor.
  • FIG. 1 shows the partially sectioned side view of an ignition distributor according to the invention
  • FIG. 2 shows an insulation screen for the ignition distributor according to FIG. 1
  • FIG. 3 shows an insulation screen that is somewhat modified compared to FIG.
  • the ignition distributor shown in Figure 1 is intended for an internal combustion engine, not shown, of a motor vehicle, also not shown.
  • This ignition distributor has a base plate 1, which comprises a bearing 2 for a shaft 3 in its central region.
  • the shaft 3, which is rotatably mounted in the bearing 2 carries, on its end section protruding from the base plate 1, a coupling piece 4 which is intended for connection to the camshaft, not shown, of the internal combustion engine.
  • the inner end portion of the shaft 3 is provided with a flange 5 to which a rotor 6 is screwed.
  • the rotor 6 consists of an insulating body 7, from which a distributor finger 8 projects radially.
  • a distributor electrode 9 protrudes from the free end of the distributor finger 8 and can be moved past fixed electrodes at a certain distance.
  • One of the fixed electrodes is shown and designated 10.
  • the fixed electrodes 10 are connected to spark plugs in the cylinders of the internal combustion engine via high-voltage connections 11, not shown.
  • ignition voltage pulses are transmitted to the fixed electrodes 10, these ignition pulses being taken from an ignition coil (not shown) and fed via a high-voltage connection 12 and a sliding contact 13 to a contact plate 14 which is in electrical connection with the distributor electrode 9.
  • a diaphragm-like sensor element 15 is clamped between the flange 5 and the insulating body 7 and, together with a Hall barrier 16, forms a signal generator 17 that delivers signals for triggering the ignition.
  • the rotor 6 and the signal generator 17 are covered by a cap 18 made of insulating material, with which the high-voltage connections 11, 12 form a structural unit.
  • the connection cap 18 is fastened to the base plate 1, and in the preferred case screwed, as is indicated by the dash-dotted line 19.
  • an insulation screen 20 engages in the space between the rotor 6 and the signal transmitter 17. So that the assembly consisting of the rotor 6 and the signal generator 17 can remain unchanged during assembly and disassembly of the insulation screen 20, this screen 20 is composed of at least two individual parts 21, 22 (FIG. 2), these individual parts 21, 22 having a shell shape . This assembly takes place in such a way that the individual parts are put together. This can be done in such a way that one individual part has labyrinth-shaped grooves on the parting surfaces, which are the cross section of the parting surface of the other Item are adjusted. This also results in good dielectric strength at the parting surfaces.
  • a hinge-like connection 24 appears to be particularly suitable for this purpose. This also simplifies the manufacture of the insulation shield 20 in terms of production technology.
  • the distributor finger 8 can also be provided with a protruding bead 26 which runs along the distributor finger 8 and lies below the distributor electrode 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Claims (4)

1. Distributeur d'allumage pour un moteur à combustion interne à plusieurs cylindres comportant un arbre (3) mis en rotation par le moteur ainsi qu'un rotor (6) monté sur l'arbre (3) et muni d'un doigt-distributeur (8) radialement en saillie, et qui distribue les impulsions de tension d'allumage aux électrodes fixes (10), celles-ci étant prévues dans un capuchon (18) en un matériau isolant rapporté sur le boîtier du distributeur, le rotor étant relié par un orifice central d'un écran isolant (20) prévu entre le capuchon (18) et le boîtier, traversé par l'arbre (3), distributeur caractérisé en ce que le rotor (6) est relié par vissage à l'arbre (3), en ce qu'entre le rotor (6) et l'arbre (3), on a un élément-capteur (15) en forme d'écran qui fait partie d'un générateur de signaux (17) fournissant un signal pour le déclenchement de l'allumage et en ce que l'écran isolant (20) vient dans l'intervalle libre entre le rotor (6) et le générateur de signaux (17), écran qui se compose d'au moins de deux pièces distinctes (21, 22) en forme de coupelles, ces pièces étant fixées en forme et en position par le capuchon (18) qui recouvre le rotor (6) et l'élément-capteur.
2. Distributeur d'allumage selon la revendication 1, caractérisé en ce que les pièces distinctes (21,22) sont enfichées l'une dans l'autre.
3. Distributeur d'allumage selon la revendication 1, caractérisé en ce que les pièces distinctes (21, 22) ont un moyen de liaison souple (23).
4. Distributeur d'allumage selon la revendication 3, caractérisé en ce que les pièces distinctes (21, 22) sont reliées l'une à l'autre suivant une liaison de type charnière.
EP84116271A 1984-03-10 1984-12-22 Distributeur d'ignition pour moteur à combustion interne Expired EP0160130B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3408829 1984-03-10
DE19843408829 DE3408829A1 (de) 1984-03-10 1984-03-10 Zuendverteiler fuer eine mehrzylinder-brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP0160130A1 EP0160130A1 (fr) 1985-11-06
EP0160130B1 true EP0160130B1 (fr) 1989-05-03

Family

ID=6230112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84116271A Expired EP0160130B1 (fr) 1984-03-10 1984-12-22 Distributeur d'ignition pour moteur à combustion interne

Country Status (7)

Country Link
EP (1) EP0160130B1 (fr)
JP (1) JPS60209668A (fr)
AU (1) AU569778B2 (fr)
BR (1) BR8501042A (fr)
DE (2) DE3408829A1 (fr)
ES (1) ES8606741A1 (fr)
MX (1) MX155989A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601381A1 (de) * 1986-01-18 1987-07-23 Bosch Gmbh Robert Unterbrecherloser zuendverteiler fuer elektronische zuendeinrichtungen von brennkraftmaschinen
FR2623252B1 (fr) * 1987-11-16 1990-02-23 Equip Electr Moteur Distributeur d'allumage pour moteur a combustion interne de vehicule automobile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596695A (en) * 1968-10-08 1971-08-03 Alfa Romeo Spa Protective hood for ignition distributors of motor vehicles
FR2034279A1 (fr) * 1969-03-07 1970-12-11 Royer Bernard
US4011851A (en) * 1975-08-25 1977-03-15 Beutler Eden E Distributor assembly for a vehicle
AU509798B2 (en) * 1977-02-28 1980-05-22 Robert Bosch (Australia) Proprietary Ltd. Engine distributor insert
DE7917194U1 (de) * 1979-06-15 1980-11-27 Robert Bosch Gmbh, 7000 Stuttgart Zündverteiler für Brennkraftmaschinen
JPS5719614A (en) * 1980-07-11 1982-02-01 Hitachi Ltd Device for sensing rotary angle
FR2518178A1 (fr) * 1981-12-16 1983-06-17 Ducellier & Cie Distributeur d'allumage pour moteur a combustion interne

Also Published As

Publication number Publication date
ES541096A0 (es) 1986-04-16
AU3966985A (en) 1985-09-12
DE3408829A1 (de) 1985-09-12
ES8606741A1 (es) 1986-04-16
AU569778B2 (en) 1988-02-18
JPS60209668A (ja) 1985-10-22
MX155989A (es) 1988-06-10
DE3478047D1 (en) 1989-06-08
BR8501042A (pt) 1985-10-29
EP0160130A1 (fr) 1985-11-06

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