US3795236A - Ignition distributor - Google Patents

Ignition distributor Download PDF

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Publication number
US3795236A
US3795236A US00323393A US3795236DA US3795236A US 3795236 A US3795236 A US 3795236A US 00323393 A US00323393 A US 00323393A US 3795236D A US3795236D A US 3795236DA US 3795236 A US3795236 A US 3795236A
Authority
US
United States
Prior art keywords
distributor
casing
coil
cap
ignition
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
US00323393A
Other languages
English (en)
Inventor
N Jukes
D Grainger
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Application granted granted Critical
Publication of US3795236A publication Critical patent/US3795236A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02P7/026—Distributors combined with other ignition devices, e.g. coils, fuel-injectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S336/00—Inductor devices
    • Y10S336/02—Separable

Definitions

  • ABSTRACT Foreign Application Priority Data A11 ignition distributor for an internal combustion en- Jan 14 1972 Great Edwin 1834/72 gme spark 1gn1t1on system includes a hollow casmg closed at one end by a detachable insulating cap. A rotatable shaft is supported by the casing and carries a [52] 123/1465 317/1516 rotor arm which co-operates with high tension elec- /96, 336/105, 336/DIG. 2 1
  • An ignition distributor in-' eludes a hollow casing closed at one end by a detachable insulating cap, a rotatable shaft supported by the casing and carrying a rotor arm co-operable with high tension electrodes carried by the cap, and, an ignition coil, the coil having two separable parts, a first part including a first core component and the coil primary winding and a second part including a second core component and the coil secondary winding, the two parts being located in position relative to one another to constitute an ignition coil, by the distributor cap and easing.
  • the first and second core components are such that in use they define a rectangular iron circuit.
  • the other end of the secondary winding is electrically connected to its respective core component and the first core component is earthed in use through the casing of the distributor.
  • a contact breaker assembly including a fixed electrical contact and a movable electrical contact.
  • the movable contact is carried by a pivoted heel member engageable with the cam shaft, and rotation of the cam shaft causes movement of the heel member to make and break the fixed and movable contacts in the usual manner.
  • the casing 11 is extended at 11a to define a pocket 18 within which is'housed a first ignition coil part 19.
  • the ignition coil part 19 comprises a core component 21 of laminated construction, and of generally U- shaped form. Wound around the base of the U-shaped core component 21 is a primary winding 22 and the assembly of the component 21 and winding 22 is encapsulated in synthetic resin material within the pocket 18.
  • a plurality of self-tapping screws extend through the casing wall and into the synthetic resin encapsulation, and thereby serve to retain the first coil part within the pocket 18. It will be appreciated that by removing the screws in the normal manner the encapsulated first coil part can be removed from the pocket 18, the pocket 18 tapering inwardly from its open end to facilitate.removal of the first coil part.
  • the limbs of the core part are not within the encapsulation and are received in recesses in the wall of the pocket 18..
  • the core components 21, 24 define in use, a iron circuit and in order to ensure that the transformer produced by the two coil componentsis.satisfactory for use as an ignition coil, an air gap is introducedinto the iron circuit.
  • the spacers 26 are preferably formed from electrically conductive material, for example, brass so that the two core components are electrically interconnected in use.
  • One end of the secondary winding 25 is electrically connected to the core component 24, while the other end of the secondary winding is electrically connected to the electrode 13.
  • the secondary winding 25 is electrically connected to the electrode 13 by way of alead or air gap then a separate electrical connection between the core components would be provided.
  • the secondary winding could be earthed by a different route.
  • One end of the primary winding 22 is electrically connected to a terminal 29 accessible from the exterior of the casing 11.
  • the other end of the primary winding 22 is electricallyconnected by way of a lead 31 to the movable contact of the contact breaker assembly, the fixed contact of the contact breaker'assembly being earthed through the casing 11.
  • the terminal 29 constitutes the low tension input terminal of the arrangement and as the current flowing-in the primary winding 22 is interrupted by operation of the contact breaker assembly high tension sparking pulses are generated in the secondary winding 25 and applied by way of the lead 27, the electrode 13, the rotor arm 16 and the electrodes 14 to the sparking plugs of the associated internal combustion engine in turn.
  • the ignition coil is in the form of two separable units, and either can be replaced independently of the other where necessary.
  • the coil parts are detachable from their respective carriers then should for example the cap 12 require replacement then the coil part can be removed and utilized in the replacement cap.
  • the cap is attached to the casing in the conventional manner by spring clips, or captive screws.
  • the spacers 26 are conveniently in the form of ribbed, or bowed pieces of brass strip, the ribs, or the bowing being chosen so that they deform when the cap and casing are interengaged, to provide the desired air gap in the magnetic core circuit. Additionally, owing to their inherent resilience the spacers, when deformed, act as springs taking up any play'between the cap and the casing, and ensuring a good electrical connection between the core components. Where the spacer is a radio frequency suppression capacitor which may be provided, can be encapsulated in the encapsulation of one or other of the coil parts.
  • the shaft 15 carries a cam shaft, and the casing houses a contact breaker assembly operated by the cam shaft. It is to be appreciated that the shaft 15 could drive any alternative device whereby the circuit of the primary winding of the ignition, coil can be made and broken in timed relation to the operation of the engine. For example a' magnetic device rotated by the shaft 15 could operate with a magnetic pick-up controlling the coil primary circuit.
  • An ignition distributor including a hollow casing closed at one end by a detachable insulating cap, a rotatable-shaft supported by the casing and carrying a rotor arm co-operable with high tension electrodes carried by the cap, and, an ignition coil, the coil having two separable parts, a first part including a first core component and the coil primary winding and a second part including a second core component and the coil secondary winding, wherein the first ignition coil part is positioned within the casing and the second coil part is positioned within the cap.
  • a distributor as claimed in claim- 1 wherein one end of the primary winding is connected to a low tension input terminal accessible from the exterior of the casing and the other end of the winding is connected within the casing, to the contact breaker of the ignition distributor; a

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)
US00323393A 1972-01-14 1973-01-15 Ignition distributor Expired - Lifetime US3795236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB183472*[A GB1405011A (en) 1972-01-14 1972-01-14 Ignition distributors

Publications (1)

Publication Number Publication Date
US3795236A true US3795236A (en) 1974-03-05

Family

ID=9728822

Family Applications (1)

Application Number Title Priority Date Filing Date
US00323393A Expired - Lifetime US3795236A (en) 1972-01-14 1973-01-15 Ignition distributor

Country Status (8)

Country Link
US (1) US3795236A (enrdf_load_stackoverflow)
JP (1) JPS4878336A (enrdf_load_stackoverflow)
AU (1) AU461773B2 (enrdf_load_stackoverflow)
DE (1) DE2301754A1 (enrdf_load_stackoverflow)
ES (1) ES410519A1 (enrdf_load_stackoverflow)
FR (1) FR2167861A5 (enrdf_load_stackoverflow)
GB (1) GB1405011A (enrdf_load_stackoverflow)
IT (1) IT976826B (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906918A (en) * 1972-08-18 1975-09-23 Lucas Electrical Co Ltd Spark ignition apparatus for internal combustion engines
US3941107A (en) * 1975-02-20 1976-03-02 General Motors Corporation Ignition distributor rotor
US3954094A (en) * 1974-11-25 1976-05-04 General Motors Corporation Ignition distributor rotor
US4048972A (en) * 1974-10-12 1977-09-20 Robert Bosch Gmbh Ignition coil for internal combustion engines
US4146857A (en) * 1976-11-10 1979-03-27 Robert Bosch Gmbh Ignition coil for engine ignition system
US4328771A (en) * 1978-10-31 1982-05-11 Nippon Soken, Inc. Starting assist system for diesel engines
US4960099A (en) * 1988-09-19 1990-10-02 Hitachi, Ltd. Distributor for internal combustion engine
US20110132339A1 (en) * 2009-12-04 2011-06-09 Jerry Hoffmann Multiple Coil Distributor and Method of Use Thereof

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6060270A (ja) * 1983-09-09 1985-04-06 Hitachi Ltd 高エネルギ点火装置
JPS61120082U (enrdf_load_stackoverflow) * 1985-01-16 1986-07-29
JPS61120080U (enrdf_load_stackoverflow) * 1985-01-16 1986-07-29
JPS61120081U (enrdf_load_stackoverflow) * 1985-01-16 1986-07-29
JPH0450461Y2 (enrdf_load_stackoverflow) * 1985-04-18 1992-11-27
JPS61173778U (enrdf_load_stackoverflow) * 1985-04-18 1986-10-29
JPH0435580Y2 (enrdf_load_stackoverflow) * 1985-05-13 1992-08-24
JPS61200468U (enrdf_load_stackoverflow) * 1985-06-04 1986-12-15

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1783343A (en) * 1929-03-26 1930-12-02 Excel Magneto Co Battery ignition system
US1826888A (en) * 1928-09-21 1931-10-13 Simplex Ignition Corp Distributor
US1976178A (en) * 1934-01-04 1934-10-09 Mallory Res Co Ignition coil and distributor assembly
US2161043A (en) * 1936-10-30 1939-06-06 Bendix Aviat Corp Distributor
US2619513A (en) * 1949-06-30 1952-11-25 Charles E Wolfenbarger Sealed ignition unit
US3277358A (en) * 1963-09-09 1966-10-04 Thomas H Nicholl Battery charger
US3638630A (en) * 1970-05-20 1972-02-01 Gen Motors Corp Internal combustion engine ignition distributor cap and coil assembly
US3682098A (en) * 1969-01-11 1972-08-08 Messerschmitt Boelkow Blohm Explosive charge ignition system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1826888A (en) * 1928-09-21 1931-10-13 Simplex Ignition Corp Distributor
US1783343A (en) * 1929-03-26 1930-12-02 Excel Magneto Co Battery ignition system
US1976178A (en) * 1934-01-04 1934-10-09 Mallory Res Co Ignition coil and distributor assembly
US2161043A (en) * 1936-10-30 1939-06-06 Bendix Aviat Corp Distributor
US2619513A (en) * 1949-06-30 1952-11-25 Charles E Wolfenbarger Sealed ignition unit
US3277358A (en) * 1963-09-09 1966-10-04 Thomas H Nicholl Battery charger
US3682098A (en) * 1969-01-11 1972-08-08 Messerschmitt Boelkow Blohm Explosive charge ignition system
US3638630A (en) * 1970-05-20 1972-02-01 Gen Motors Corp Internal combustion engine ignition distributor cap and coil assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906918A (en) * 1972-08-18 1975-09-23 Lucas Electrical Co Ltd Spark ignition apparatus for internal combustion engines
US4048972A (en) * 1974-10-12 1977-09-20 Robert Bosch Gmbh Ignition coil for internal combustion engines
US3954094A (en) * 1974-11-25 1976-05-04 General Motors Corporation Ignition distributor rotor
US3941107A (en) * 1975-02-20 1976-03-02 General Motors Corporation Ignition distributor rotor
US4146857A (en) * 1976-11-10 1979-03-27 Robert Bosch Gmbh Ignition coil for engine ignition system
US4328771A (en) * 1978-10-31 1982-05-11 Nippon Soken, Inc. Starting assist system for diesel engines
US4960099A (en) * 1988-09-19 1990-10-02 Hitachi, Ltd. Distributor for internal combustion engine
US20110132339A1 (en) * 2009-12-04 2011-06-09 Jerry Hoffmann Multiple Coil Distributor and Method of Use Thereof

Also Published As

Publication number Publication date
AU5077673A (en) 1974-07-11
JPS4878336A (enrdf_load_stackoverflow) 1973-10-20
IT976826B (it) 1974-09-10
FR2167861A5 (enrdf_load_stackoverflow) 1973-08-24
GB1405011A (en) 1975-09-03
AU461773B2 (en) 1975-06-05
ES410519A1 (es) 1975-12-01
DE2301754A1 (de) 1973-07-19

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