EP0463417B1 - Zündanlage für Brennkraftmaschinen - Google Patents

Zündanlage für Brennkraftmaschinen Download PDF

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Publication number
EP0463417B1
EP0463417B1 EP91109160A EP91109160A EP0463417B1 EP 0463417 B1 EP0463417 B1 EP 0463417B1 EP 91109160 A EP91109160 A EP 91109160A EP 91109160 A EP91109160 A EP 91109160A EP 0463417 B1 EP0463417 B1 EP 0463417B1
Authority
EP
European Patent Office
Prior art keywords
ignition
distributor
connection
component
ignition 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 - Lifetime
Application number
EP91109160A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0463417A3 (enrdf_load_stackoverflow
EP0463417A2 (de
Inventor
Dieter Raff
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.)
OFFERTA DI LICENZA AL PUBBLICO;AL PUBBLICO
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 EP0463417A2 publication Critical patent/EP0463417A2/de
Publication of EP0463417A3 publication Critical patent/EP0463417A3/xx
Application granted granted Critical
Publication of EP0463417B1 publication Critical patent/EP0463417B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627—Snap or like fastening
    • H01R13/6277—Snap or like fastening comprising annular latching means, e.g. ring snapping in an annular groove
    • 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
    • F02P7/022—Details of the distributor rotor or electrode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/20—Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together

Definitions

  • the invention is based on an ignition system according to the preamble of claim 1.
  • a generic ignition system is known from DE-U_87 09 448.
  • the ignition system includes a high-voltage distributor, the electrodes of which are provided with connections as connecting bolts which, for connection to an ignition distributor connector, have wedge-shaped ring grooves in which the snap-in connection element fitted in the contact part of the ignition distributor connector can snap.
  • the wedge angle is dimensioned so that the latching connection element, which is designed in the form of a bow spring having a circular cross section, can disengage from the annular groove with a corresponding axial force on the ignition distributor connector, as a result of which the ignition distributor connector can be removed from the connection.
  • connection solution which has a higher level of functional reliability during operation, is unsatisfactory if it is considered from the point of view of an economically feasible repair of damaged ignition dishes.
  • the arrangement according to the invention with the characterized features of claim 1 has the advantage that the aforementioned shortcomings are avoided to a satisfactory extent and an ignition system is created with a connection solution between the high-voltage distributor and ignition distributor connector, which on the one hand has a high level of functional reliability in the operating state and on the other hand with one Damage to replace the defective parts enables the disconnection of the ignition distributor connector from the high-voltage distributor.
  • annular groove is attached to the connection of each electrode of the high-voltage distributor, into which the latching connection element of the ignition distributor connector initially snaps into place. This is then the functionally reliable connection position between the ignition distributor connector and the high-voltage distributor, which characterizes the normal operating state.
  • FIG. 1 shows, as part of an ignition system for internal combustion engines, a high-voltage distributor and associated ignition distributor connector
  • FIG. 2 latches the contact part of an ignition distributor connector on a connection of the high-voltage distributor and, in a modification of FIG. 2, on the one hand in FIG. 3 the contact part in mated condition and on the other hand in FIG 4 the contact part when removing from the connection of the high-voltage distributor.
  • the high-voltage distributor 11 shown in simplified form in FIG. 1 for a multi-cylinder internal combustion engine has a distributor cap 12, which is releasably placed on a distributor housing, not shown.
  • the distributor cap 12 carries a centrally arranged central electrode 13 and a number of fixed electrodes 14 corresponding to the number of cylinders of the internal combustion engine, which are arranged on a circular path concentric with the central electrode 13 at the same distance from one another.
  • the distributor cap 12 has spigot-shaped domes 16 which protrude parallel to the longitudinal axis 17 of the distributor cap 12.
  • domes 16 project as connections 19 cylindrical connecting bolts which are integrally connected to the central electrode 13 or to the fixed electrodes 14 and are accordingly also arranged together with the domes 16 coaxially to the longitudinal axis 17 or axially parallel on the concentric circular path.
  • Each of the connections 19 merges with an annular shoulder 18 into the larger electrodes 13, 14.
  • each of the connections 19 can be coupled to an ignition distributor plug 22.
  • the ignition distributor plug 22 has, at its end facing the dome 16, a sleeve-shaped contact part 26 which is designed as a connection opening 24 and which partly protrudes from a base body made of insulating material of the ignition distributor plug (22) in which it is held, and there from the circumference of one Wall 31 is limited.
  • the wall 31 is severed over part of the circumference by a slot 29 which is directed normal to the longitudinal axis 17.
  • a snap-in connection element 27 in the form of a bow spring is mounted such that it can spring open.
  • the latching connection element 27 projects into the contact part 26 with part of its circumferential extent.
  • FIG. 2 shows, partly in longitudinal section, the connection 19 and the contact part 26 of the ignition distributor connector 22 in the latching position which characterizes the operating state.
  • the connection 19 has a coaxial cylindrical section 34 starting from the shoulder 18.
  • a hollow cylindrical unlocking part 33 is placed as a sliding ring with an outer jacket 39, which in the locking position stands with one end face on the shoulder 18 and on the opposite end face extends over the entire radial extent of the unlocking part 33 has run-on chamfer 37, which forms a sliding angle 41 with respect to a normal 38 to the longitudinal axis, which is in a range between 30 degrees to 75 degrees and is 60 degrees in the exemplary embodiment.
  • a guide part 32 is placed on the section 34 at the end facing away from the section 18.
  • the guide part 32 consists of a cylindrical shaft 30 which is of hollow cylindrical design over a part length and with which it encloses the section 34 on the narrow side with an interference fit.
  • the other part of the shaft 30 axially projects beyond the section 34 and merges at the end into a frustoconical end section 21.
  • the outer diameter of the shaft 30 radially projects beyond the outer diameter of the section 34 by the wall thickness of the unlocking part 33 and forms a shoulder 35 on the front side facing the unlocking part 33, which shoulder is shaped such that it is complementary to the run-on slope 37.
  • the annular groove 28 is axially delimited by the shoulder 35 and the bevel 37, while the radial delimitation takes place via a groove base 36 which is formed by the lateral surface of the section 34.
  • the latching connection element 27 which is provided with a circular cross section, engages in the annular groove 28 and, lying on the groove base 36, projects beyond the outer diameter of the shaft 30 and the unlocking part 33 by almost the radius of its cross section.
  • An annular end face 43 of wall 31 facing shoulder 18 is separated from shoulder 18 by an axial distance 44 in the latched position shown.
  • a part attached to the distributor cap 12, for example a ring attached to the dome 16 can also be provided as a stop, which after its destruction likewise allows the ignition distributor connector 22 to be pushed in further beyond its snap-in position.
  • the end position resulting from plugging the ignition distributor connector 22 is shown in FIG. 3.
  • the snap-in connection element 27 is pushed with a partial area over the run-up slope 37 onto the outer jacket 39 of the unlocking part 33 and is connected to the latter by the resulting widening, with increased preload compared to the positioning in the annular groove 28.
  • the axial displacement of the distributor connector 22 is limited in this position by the stop of the end face 43 on the shoulder 18.
  • connection between the ignition distributor connector 22 and the connection 19 is thus broken and the ignition distributor connector 22 is thus disconnected from the high-voltage distributor 11.
  • the outer diameters of the shaft 30 and the unlocking part 33 can differ from one another, as long as, with a corresponding axial force and with a corresponding profile of the locking connection element 27, the partial area of the locking connection element 27 projecting through the slot 29 slides from the unlocking part 33 onto the Guide part 32 is possible.

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)
EP91109160A 1990-06-23 1991-06-05 Zündanlage für Brennkraftmaschinen Expired - Lifetime EP0463417B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4020022 1990-06-23
DE4020022A DE4020022A1 (de) 1990-06-23 1990-06-23 Zuendanlage fuer brennkraftmaschinen

Publications (3)

Publication Number Publication Date
EP0463417A2 EP0463417A2 (de) 1992-01-02
EP0463417A3 EP0463417A3 (enrdf_load_stackoverflow) 1994-01-19
EP0463417B1 true EP0463417B1 (de) 1996-09-25

Family

ID=6408926

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91109160A Expired - Lifetime EP0463417B1 (de) 1990-06-23 1991-06-05 Zündanlage für Brennkraftmaschinen

Country Status (2)

Country Link
EP (1) EP0463417B1 (enrdf_load_stackoverflow)
DE (2) DE4020022A1 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4232951A1 (de) * 1992-10-01 1994-04-07 Bosch Gmbh Robert Zündanlage für Brennkraftmaschinen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2022669A (en) * 1933-06-29 1935-12-03 Lincoln M Keefe Jack
US3659250A (en) * 1970-10-14 1972-04-25 Robert F Horton Electrical connector
DE3023288C2 (de) * 1980-06-21 1986-01-09 Robert Bosch Gmbh, 7000 Stuttgart Entstörstecker zum Aufstecken auf dem Isolator einer Zündkerze oder dem Dorn eines Verteilers
US4631370A (en) * 1985-10-01 1986-12-23 Chrysler Motors Corporation Labyrinth for an ignition distributor cap and rotor assembly with atmospheric purging action
DE8709448U1 (de) * 1987-07-09 1987-08-27 Bremi Auto-Elektrik Bremicker GmbH + Co, 5883 Kierspe Vorrichtung zur Steckverbindung eines Zündkabels mit einem Kontaktbolzen einer Zündverteilerkappe

Also Published As

Publication number Publication date
EP0463417A3 (enrdf_load_stackoverflow) 1994-01-19
EP0463417A2 (de) 1992-01-02
DE59108217D1 (de) 1996-10-31
DE4020022A1 (de) 1992-01-02

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