US3575150A - Ignition distributor for internal combustion engines - Google Patents

Ignition distributor for internal combustion engines Download PDF

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Publication number
US3575150A
US3575150A US838991A US3575150DA US3575150A US 3575150 A US3575150 A US 3575150A US 838991 A US838991 A US 838991A US 3575150D A US3575150D A US 3575150DA US 3575150 A US3575150 A US 3575150A
Authority
US
United States
Prior art keywords
distributor
internal combustion
path
pickup member
arm
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
US838991A
Other languages
English (en)
Inventor
Roger Habert
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
Application granted granted Critical
Publication of US3575150A publication Critical patent/US3575150A/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
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/05—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means
    • F02P5/10—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on fluid pressure in engine, e.g. combustion-air pressure
    • F02P5/103—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on fluid pressure in engine, e.g. combustion-air pressure dependent on the combustion-air pressure in engine
    • 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
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/05—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means
    • F02P5/06—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using mechanical means dependent on engine speed
    • F02P5/07—Centrifugal timing mechanisms
    • F02P5/075—Centrifugal devices combined with other specific conditions
    • 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
    • F02P5/00—Advancing or retarding ignition; Control therefor
    • F02P5/04—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions
    • F02P5/145—Advancing or retarding ignition; Control therefor automatically, as a function of the working conditions of the engine or vehicle or of the atmospheric conditions using electrical means
    • F02P5/155—Analogue data processing
    • 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
    • F02P7/0677—Mechanical arrangements
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • transistorized types in combination with conventional breaker points avoid the rapid deterioration of the points due to decrease in the voltages impressed across them, mechanically operated breaker points are propense to maladjustment and are limited as to the rapidity with which they may operate with accuracy.
  • Photoelectric or equivalent types of contactless systems are delicate in nature and moreover require accurate signals particularly as applied to the radiant energy source in order to achieve satisfactory results. Moreover, their constructions make it difficult to 'achieve the requisite automatic advance characteristics, particularly within the confines of limited space.
  • the present invention is concerned with a rugged and simple contactless system which may be accommodated in a small space and which easily lends itself to utilization with automatic advance mechanisms of the type which have been developed for mechanical breaker point systems.
  • the present invention is directed to a distributor device which employs a member rotating with the usual distributor shaft and carrying a plurality of magnetic masses equal to the number of engine cylinders in uniformly spaced relation.
  • a pickup member is disposed to be adjacent the path swept by the magnetic masses to produce output pulses for controlling the ignition timing.
  • the pickup member is a magnetodiode and may be moved in the relative direction of the swept path by conventional means such as centrifugal advance mechanism and manifold vacuum advance-retard mechanism.
  • FIG. ll is a plan view of the distributor device according to the present invention, the vacuum advance-retard mechanism being shown in section;
  • FIG. 2 is a partial vertical section taken through the distributor substantially along the plane of section line 11-" in FIG. 1!.
  • the distributor body is indicated therein by the reference character 1 and rotatably supports a conventional distributor drive shaft 2 whose upper end is adapted to receive the distributor rotor, not shown.
  • a mounting plate I is provided with upstanding ears which are fixed to the inner face of the distributor body I by means of the fasteners F, two of the fasteners being conveniently utilized also to secure the clips C for the distributor rotor cap D, as is shown in FIG. 2.
  • the mounting plate P is provided with an upstanding pivot pin upon which the pivoted lever 22 is pivotally mounted at one end thereof, the opposite end of this lever carrying a magnetodiode 5.
  • An upstanding pin 24 on the lever serves to secure the bracket 26 which carries the magnetodiode 5 and also serves as an anchoring member for the tension spring 28 and for the link 6 of the vacuum advance-retard device indicated generally by the reference character 30.
  • the advance-retard device is provided with a conduit 32 adapted to be connected to the intake manifold of the associated internal combustion engine and subject the diaphragm 7 to such pressure on the corresponding side thereof, the opposite side of the diaphragm 7 being vented to ambient atmosphere.
  • the link 6 will pivot the lever 22 in FIG. 1 in a counterclockwise direction about its pivot pin 20.
  • a plate or disc 3 Secured below the mounting plate P to the distributor shaft 2 is a plate or disc 3 which is provided around its circumferential margin with a series of magnetic masses 4 which are equidistantly spaced circumferentially and which are of a total number equal to the number of cylinders of the associated internal combustion engine. Since the disc 3 is affixed to the distributor shaft 2, the magnetic masses 4 sweep a circular path adjacent to which the magnetodiode 5 is disposed so that every time a mass sweeps past the diode, an impulse will be generated which may be applied over a suitable conductor not shown to control the ignition timing of the associated internal combustion engine.
  • the disc 3 and consequently the magnetic masses 4 may be mounted on an upper section of the shaft 2 which is adapted to rotate under the influence of a centrifugal advance mechanism with respect to the lower or drive end of the distributor shaft, it is preferred that the advance characteristic responsive to engine speed be accomplished by the electrical circuitry according to the copending application Ser. No. 835,661 filed Jun. 23, 1969 and which includes the herein described distributor mechanism as one signal generator and another signal generator which has an output voltage proportional to engine speed, the two signal generators being effective to trigger a pulse generator when a predetermined relationship between the ramp voltage output of the present invention and of the tachometric voltage generator is attained.
  • the present invention presents a contactless ignition distributor which is of very simple yet rugged construction and which may readily accommodate both for ignition advance with respect to engine r.p.m. and ignition advance-retard in conjunction with manifold vacuum reflecting engine load.
  • the lever 22 may be provided with a depending lever 34 projecting within an enlarged opening 36 in the plate P so as to provide limit stops for the angular movement of the lever 22, it being appreciated that the spring 28 normally urges the lever 22 in the retard direction in opposition to the effect of high manifold vacuum which urges the lever 22 in the advance direction.
  • a pickup member carried by said body and positioned adjacent said path to receive signals from said magnetic structure as it sweeps therepast, said pickup member being a magnetodiode;

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Electromagnetism (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
US838991A 1968-07-12 1969-07-03 Ignition distributor for internal combustion engines Expired - Lifetime US3575150A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR159030 1968-07-12

Publications (1)

Publication Number Publication Date
US3575150A true US3575150A (en) 1971-04-20

Family

ID=8652498

Family Applications (1)

Application Number Title Priority Date Filing Date
US838991A Expired - Lifetime US3575150A (en) 1968-07-12 1969-07-03 Ignition distributor for internal combustion engines

Country Status (7)

Country Link
US (1) US3575150A (de)
BE (1) BE734267A (de)
DE (1) DE1935343A1 (de)
ES (1) ES368704A1 (de)
FR (1) FR1588839A (de)
GB (1) GB1258978A (de)
NL (1) NL6910236A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2168780A5 (de) * 1972-01-15 1973-08-31 Lucas Electrical Co Ltd
US4089316A (en) * 1976-04-05 1978-05-16 Motorola, Inc. Adjustable rotary position sensor for electronic spark timing control
US4096840A (en) * 1976-02-02 1978-06-27 Jordan Richard J Pulse ignition distributor
US4142490A (en) * 1975-10-22 1979-03-06 Nissan Motor Company, Ltd. Hybrid spark advance control apparatus for internal combustion engines

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924633A (en) * 1954-03-27 1960-02-09 Siemens Ag Ignition system for internal combustion engines
US3291108A (en) * 1964-01-08 1966-12-13 Holley Carburetor Co Transistor ignition
US3297009A (en) * 1963-07-10 1967-01-10 Hitachi Ltd Contactless ignition devices
US3322107A (en) * 1965-04-14 1967-05-30 Ford Motor Co Ignition system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924633A (en) * 1954-03-27 1960-02-09 Siemens Ag Ignition system for internal combustion engines
US3297009A (en) * 1963-07-10 1967-01-10 Hitachi Ltd Contactless ignition devices
US3291108A (en) * 1964-01-08 1966-12-13 Holley Carburetor Co Transistor ignition
US3322107A (en) * 1965-04-14 1967-05-30 Ford Motor Co Ignition system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2168780A5 (de) * 1972-01-15 1973-08-31 Lucas Electrical Co Ltd
US3854461A (en) * 1972-01-15 1974-12-17 Lucas Industries Ltd Vacuum units
US4142490A (en) * 1975-10-22 1979-03-06 Nissan Motor Company, Ltd. Hybrid spark advance control apparatus for internal combustion engines
US4096840A (en) * 1976-02-02 1978-06-27 Jordan Richard J Pulse ignition distributor
US4089316A (en) * 1976-04-05 1978-05-16 Motorola, Inc. Adjustable rotary position sensor for electronic spark timing control

Also Published As

Publication number Publication date
ES368704A1 (es) 1971-05-01
BE734267A (de) 1969-11-17
NL6910236A (de) 1970-01-14
GB1258978A (de) 1972-01-05
DE1935343A1 (de) 1970-01-15
FR1588839A (de) 1970-03-16

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