EP0073457A2 - Distributeur d'allumage comprenant un détecteur inductif - Google Patents

Distributeur d'allumage comprenant un détecteur inductif Download PDF

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Publication number
EP0073457A2
EP0073457A2 EP82107756A EP82107756A EP0073457A2 EP 0073457 A2 EP0073457 A2 EP 0073457A2 EP 82107756 A EP82107756 A EP 82107756A EP 82107756 A EP82107756 A EP 82107756A EP 0073457 A2 EP0073457 A2 EP 0073457A2
Authority
EP
European Patent Office
Prior art keywords
armature
magnet
distributor
rotational
sleeve
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Withdrawn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
EP82107756A
Other languages
German (de)
English (en)
Other versions
EP0073457A3 (fr
Inventor
Marian Fabrycy
Jan Winiecki
Tadeusz Strzalkowski
Andrzej Jakubowski
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.)
Przemyslowy Instytut Automatyki i Pomiarow "MERA-PIAP"
Original Assignee
Przemyslowy Instytut Automatyki i Pomiarow "MERA-PIAP"
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
Priority claimed from PL23283381A external-priority patent/PL133623B1/pl
Priority claimed from PL23481782A external-priority patent/PL137487B3/pl
Application filed by Przemyslowy Instytut Automatyki i Pomiarow "MERA-PIAP" filed Critical Przemyslowy Instytut Automatyki i Pomiarow "MERA-PIAP"
Publication of EP0073457A2 publication Critical patent/EP0073457A2/fr
Publication of EP0073457A3 publication Critical patent/EP0073457A3/fr
Withdrawn legal-status Critical Current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
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/067—Electromagnetic pick-up devices, e.g. providing induced current in a coil
    • F02P7/0675—Electromagnetic pick-up devices, e.g. providing induced current in a coil with variable reluctance, e.g. depending on the shape of a tooth

Definitions

  • This invention relates to an ignition distributor with an induction detector, appropriate for internal combustion engines with electronic ignition and mechanical spark-advance control.
  • an ignition distributor with induction detector having a single-stage differential magnetic system consisting of a magnet with an external pole shoe provided with claw-type protrusions co-operating with claw-type protrusions of the rotational armature.
  • the magnet, the pole shoe with claw-type protrusions and the magnet stator are coupled with a vacuum spark-advance control, and perform a swinging motion, increasing the mass of the control system.
  • the single-stage differential system of the magnetic circuit as plays occur in the mechanical system of the distributor, is inadequate for removing the effect of said plays upon the stability of the amplitude and the signal waveform, what causes a necessity to restrict the manufacturing tolerances, and in the result it increases the production costs.
  • the magnetic circuit gets closed by the magnet connected immovably with the body, the magnet pole shoe, a sleeve and an oscillating armature of the internal circuit, and over the gap between the claw-type pole shoe of the oscillating armature and the pole shoe of the rotational armature, over the pole shoe of the rotational armature, and the gap between the rotational armature and the magnet.
  • the internal magnetic circuit is formed by the sleeve disposed inside the coil, an oscillating armature and a plate coupling the internal circuit with the vacuum spark-advance control.
  • the internal circuit is born in the distributor body or directly in the coil.
  • the rotational armature employed in the distributor according to the invention has the form of a ring with protrusions from the internal side, constituting the pole shoes of the rotational armature. It consists of two or more identical ring sectors with ends bent towards the inner, preferably welded together into a single entirety and pressed down in the body made of non-magnetic material. The bent and welded ends of the ring sectors form the pole shoes of the rotational armature.
  • a sleeve 12 with an oscillating armature 13 fitted thereon from above and provided with claw-type pole shoes 14, and from the bottom a coupling plate 15 form the internal magnetic circuit.
  • the internal circuit is disposed inside the coil 10 and is born in the body 1 by the bearing sleeve 2.
  • the internal circuit is coupled with a known spark-advance control 16 by means of the coupling plate 15, and performs an oscillating motion.
  • a rotational armature 17 is disposed, having the form of a ring consisting of two half-rings having the ends bent towards inside and welded with each other into a single entirety. Said ends form the pole shoes 18 of the rotational armature 17.
  • the rotational armature 17 is pressed into a body 19 made of a non-magnetic material, connected with a known centrifugal governor 4 with which the distributor rotor arm 20 is coupled.
  • the entire gear is closed from the top.by a dome 21.
  • the number of claw-type pole-shoes 14 of the oscillating armature 13 equals to that of the pole shoes 18 of the rotational armature 17. Said number can, however, assume various values for various embodiments, in dependence on the number of cylinders in the engine whereto the given ignition distributor is designed.
  • the internal circuit of the distributor consisting of the sleeve 12, the oscillating armature 13, and the coupling plate 15 can be born directly in the carcass 11 of the coil 10.
  • the rotational armature 17 can be made as a monolithic element.
  • the magnet 6 should be equipped with an additional pole shoe 22 having the shape of a cylinder. In this case, the permanent gap 23 will be formed between the inside surface of the additional pole shoe 22 and the outside surface of the rotational armature 17.
  • the magnetic circuit of the distributor gets closed over the magnet 6, the magnet pole shoe 8, the sleeve 12, the oscillating armature 13 and its claw-type pole shoe 14, the variable gap 24, the rotational armature 17 and the permanent gap 23.
  • At rotation of the driving shaft 3 it follows a rotation of the centrifugal governor 4, and together therewith - of the body 19 with the rotational armature 17.
  • the positioning of the pole shoe 18 of the rotational armature 17 opposite to the claw-type pole shoe 14 of the oscillating armature 13 causes a variation of the value of magnetic flux in result of variation of the variable gap 24 value.
  • the variation of the magnetic flux value causes a generation of a signal in the coil 10, being transmitted to the electronic . system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP82107756A 1981-08-27 1982-08-24 Distributeur d'allumage comprenant un détecteur inductif Withdrawn EP0073457A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
PL23283381A PL133623B1 (en) 1981-08-27 1981-08-27 Ignition distributor with inductive sensing element
PL232833 1981-08-27
PL23481782A PL137487B3 (en) 1982-01-22 1982-01-22 Ignition distributor with an induction-type sensing element
PL234817 1982-01-22

Publications (2)

Publication Number Publication Date
EP0073457A2 true EP0073457A2 (fr) 1983-03-09
EP0073457A3 EP0073457A3 (fr) 1983-06-29

Family

ID=26652955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82107756A Withdrawn EP0073457A3 (fr) 1981-08-27 1982-08-24 Distributeur d'allumage comprenant un détecteur inductif

Country Status (3)

Country Link
EP (1) EP0073457A3 (fr)
DD (1) DD202749A5 (fr)
HU (1) HUT34585A (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2159025A5 (fr) * 1971-10-29 1973-06-15 Texaco Development Corp
US3888225A (en) * 1973-09-26 1975-06-10 Gen Motors Corp Internal combustion engine ignition controller
DE2450752A1 (de) * 1974-10-25 1976-05-06 Bosch Gmbh Robert Zuendverteiler mit steuergenerator fuer brennkraftmachinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2159025A5 (fr) * 1971-10-29 1973-06-15 Texaco Development Corp
US3888225A (en) * 1973-09-26 1975-06-10 Gen Motors Corp Internal combustion engine ignition controller
DE2450752A1 (de) * 1974-10-25 1976-05-06 Bosch Gmbh Robert Zuendverteiler mit steuergenerator fuer brennkraftmachinen

Also Published As

Publication number Publication date
EP0073457A3 (fr) 1983-06-29
HUT34585A (en) 1985-03-28
DD202749A5 (de) 1983-09-28

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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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Effective date: 19830706

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18D Application deemed to be withdrawn

Effective date: 19850709

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FABRYCY, MARIAN

Inventor name: WINIECKI, JAN

Inventor name: JAKUBOWSKI, ANDRZEJ

Inventor name: STRZALKOWSKI, TADEUSZ