EP0083879A2 - Zündverteiler für Brennkraftmaschine - Google Patents

Zündverteiler für Brennkraftmaschine Download PDF

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Publication number
EP0083879A2
EP0083879A2 EP82402190A EP82402190A EP0083879A2 EP 0083879 A2 EP0083879 A2 EP 0083879A2 EP 82402190 A EP82402190 A EP 82402190A EP 82402190 A EP82402190 A EP 82402190A EP 0083879 A2 EP0083879 A2 EP 0083879A2
Authority
EP
European Patent Office
Prior art keywords
housing
membrane
rotor
base
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.)
Granted
Application number
EP82402190A
Other languages
English (en)
French (fr)
Other versions
EP0083879B1 (de
EP0083879A3 (en
Inventor
Jean-Pierre Thevenot
Michel Nugues
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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Publication of EP0083879A2 publication Critical patent/EP0083879A2/de
Publication of EP0083879A3 publication Critical patent/EP0083879A3/fr
Application granted granted Critical
Publication of EP0083879B1 publication Critical patent/EP0083879B1/de
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
    • 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
    • F02P7/04—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors having distributors with air-tight casing

Definitions

  • the present invention relates to an ignition distributor for an internal combustion engine of the type comprising, in their successive assembly order; a housing fixed directly to the motor housing; a waterproofing membrane covering the case; a distribution rotor, the base of which crosses the membrane and the bottom of the housing to be mounted at the end of the crankshaft or camshaft; a dispensing head forming the housing by pinching the membrane.
  • the major drawback I resides in the obligation to have to store the distributor in spare parts and assemble it on the vehicle proper, this due to the presence of the membrane, the mounting of which on the housing must necessarily be done before mounting the rotor passing through it.
  • the presence of the membrane is all the more essential, during assembly at the end of the crankshaft, since its role is no longer only to protect against dust, but also to constitute a screen for heat exchanges between a cold room. constituted by the head subjected to bad weather and a hot chamber constituted by the case and undergoing the influence of the temperature of the engine by conduction. These temperature exchanges would promote condensation inside the head, which would be detrimental to the proper functioning of the ignition.
  • the object of the present invention is to remedy these drawbacks and to this end relates to an ignition distributor for an internal combustion engine of the type comprising a box fixed directly to the engine casing; a waterproofing membrane covering the case; a distribution rotor, the base of which crosses the membrane and the bottom of the housing to be mounted at the end of the crankshaft or camshaft; a dispensing head closing the housing by pinching the membrane characterized in that the sealing membrane is constituted by a diaphragm pinched between the housing and the head previously assembled and composed of a plurality of elastically deformable lamellae which emit from a flange circular, converge towards the XX 'axis of the distributor and retract with the passage of the rotor previously mounted at the end of the camshaft or of the crankshaft to then reform around of the base of said rotor.
  • the ignition distributor for an internal combustion engine shown in the figures comprises in their successive assembly order: a box 1 fixed directly to the casing 2 of the engine by means of fixing screws 3 passing through lugs 4 obtained by molding with the body of said case 1, the bottom 5 of which has an opening 6 allowing the passage of the end 7 of the camshaft 8 during assembly; a sealing membrane 9 covering the case 1; a distribution rotor 10, the base 11 of which crosses the membrane 9 and the opening 6 of the bottom 5 of the housing 1 to cover the end 7 of the camshaft 8 with which it is secured in rotation and positioned thanks to a key 12 obtained by molding in the bore 13 of the base 11 of the rotor 10 and being housed in a corresponding housing 14 formed on the shaft 8; a dispensing head 15 closing the housing 1, by pinching the membrane 9, by means of fixing screws 16 passing through lugs 17 obtained by molding with the head 15 and screwing back into the threaded holes 18 of two lugs 19 obtained from molding with the box 1.
  • the sealing membrane 9 is constituted by a diaphragm pinched between the housing 1 and the head 15 and composed of a plurality of elastically deformable strips 20, their base 21 merges with a circular collar 22 and have sufficient flexibility - health for that they can be retracted on passage of the rotor 10 previously mounted at the end of the camshaft 8 in order to then reform around the base 11 of said rotor 10, this in order to allow the preassembly of the head-membrane-housing assembly.
  • the membrane 9 is obtained by molding of plastic material and the strips 20 constituting the diaphragm are sectors whose axes OY converge towards the axis XX 'of the distributor and merge with the generatrices of a cone forming an angle ⁇ with the plane of the collar 22.
  • the lateral edges 23 of the sector-shaped strips 20 are approximately contiguous if one neglects the clearance 24 allowing the separation of the sectors which can also be carried out by subsequent cutting.
  • the membrane 9 also includes a recess 25 formed on its flange 22 allowing the housing of a centering lug 27 of the head 15 allowing the positioning of the latter relative to the housing 1.
  • the lower part of the flange 22 has an annular rim 28 which is resiliently housed in the bore 29 of the housing 1 to seal and maintain it during assembly.
  • the embodiment of the membrane 30 shown in Figures 5 and 6 differs essentially from the previous in that the diaphragm constituting it. composed of lamellae 31 in the form of a partially overlapping sector.
  • a membrane 30 is first produced, the lateral edges 32 of the lamellas 31 A in the form of a fictitiously represented sector, are initially joined as previously but whose nail ⁇ formed with the plane of the collar 33 is greater than the angle ⁇ to be obtained, hence an angle at the top of the cone generated by the axes OZ of the sectors 31, smaller than previously.
  • the initial angle / given to the slats 31 A with respect to the plane of the collar 33 can of course be greater and tend towards perpendicularity.
  • the lamellas 31 B fictitiously represented are no longer initially contiguous but positively separated from each other wineskins but they will overlap in the same way during their subsequent hot conformation according to the angle ⁇ to be obtained.

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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
EP19820402190 1981-12-16 1982-12-01 Zündverteiler für Brennkraftmaschine Expired EP0083879B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8123484A FR2518178A1 (fr) 1981-12-16 1981-12-16 Distributeur d'allumage pour moteur a combustion interne
FR8123484 1981-12-16

Publications (3)

Publication Number Publication Date
EP0083879A2 true EP0083879A2 (de) 1983-07-20
EP0083879A3 EP0083879A3 (en) 1983-10-12
EP0083879B1 EP0083879B1 (de) 1986-09-03

Family

ID=9265089

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820402190 Expired EP0083879B1 (de) 1981-12-16 1982-12-01 Zündverteiler für Brennkraftmaschine

Country Status (4)

Country Link
EP (1) EP0083879B1 (de)
DE (1) DE3273063D1 (de)
ES (1) ES8308970A1 (de)
FR (1) FR2518178A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408829A1 (de) * 1984-03-10 1985-09-12 Robert Bosch Gmbh, 7000 Stuttgart Zuendverteiler fuer eine mehrzylinder-brennkraftmaschine
FR2569778B1 (fr) * 1984-08-30 1986-09-05 Ducellier & Cie Distributeur d'allumage pour vehicules automobiles

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2176164A (en) * 1938-04-04 1939-10-17 Gen Motors Corp Ignition distributor
FR892100A (fr) * 1942-03-12 1944-03-28 Bosch Gmbh Robert Distributeur d'allumage avec protecteur contre la poussière
US2690364A (en) * 1952-11-20 1954-09-28 John S Buckwalter Distributor plate bearing assembly
US3350517A (en) * 1965-12-30 1967-10-31 Holley Carburetor Co Ignition distributor with improved means for adjusting the breaker points
DE7917194U1 (de) * 1979-06-15 1980-11-27 Robert Bosch Gmbh, 7000 Stuttgart Zündverteiler für Brennkraftmaschinen

Also Published As

Publication number Publication date
ES518211A0 (es) 1983-10-16
ES8308970A1 (es) 1983-10-16
FR2518178B1 (de) 1984-03-23
EP0083879B1 (de) 1986-09-03
EP0083879A3 (en) 1983-10-12
DE3273063D1 (en) 1986-10-09
FR2518178A1 (fr) 1983-06-17

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