GB1536124A - Engine ignition system with spark advance - Google Patents

Engine ignition system with spark advance

Info

Publication number
GB1536124A
GB1536124A GB48429/75A GB4842975A GB1536124A GB 1536124 A GB1536124 A GB 1536124A GB 48429/75 A GB48429/75 A GB 48429/75A GB 4842975 A GB4842975 A GB 4842975A GB 1536124 A GB1536124 A GB 1536124A
Authority
GB
United Kingdom
Prior art keywords
slot
ignition
magnets
adjacent
trigger
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
Application number
GB48429/75A
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.)
Eltra Corp
Original Assignee
Eltra Corp
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 US05/527,103 external-priority patent/US3961618A/en
Application filed by Eltra Corp filed Critical Eltra Corp
Publication of GB1536124A publication Critical patent/GB1536124A/en
Expired legal-status Critical Current

Links

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
    • F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
    • F02P1/08—Layout of circuits
    • F02P1/086—Layout of circuits for generating sparks by discharging a capacitor into a coil circuit
    • 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
    • F02P1/00—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage
    • F02P1/02—Installations having electric ignition energy generated by magneto- or dynamo- electric generators without subsequent storage the generator rotor being characterised by forming part of the engine flywheel
    • 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
    • F02P11/00—Safety means for electric spark ignition, not otherwise provided for
    • F02P11/02—Preventing damage to engines or engine-driven gearing
    • 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
    • F02P3/00—Other installations
    • F02P3/06—Other installations having capacitive energy storage
    • F02P3/08—Layout of circuits
    • F02P3/09—Layout of circuits for control of the charging current in the capacitor
    • F02P3/093—Closing the discharge circuit of the storage capacitor with semiconductor devices
    • 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
    • F02P5/1553—Analogue data processing by determination of elapsed angle with reference to a particular point on the motor axle, dependent on specific conditions
    • F02P5/1555—Analogue data processing by determination of elapsed angle with reference to a particular point on the motor axle, dependent on specific conditions using a continuous control, dependent on speed
    • 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
    • F02P7/03—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors with electrical means
    • F02P7/035—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors with electrical means without mechanical switching means
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Electrical Control Of Ignition Timing (AREA)

Abstract

1536124 Ignition generators ELTRA CORP 25 Nov 1975 [25 Nov 1974] 48429/75 Addition to 1442787 Heading H2A [Also in Division F1] An ignition system is of the form disclosed in Specification 1,442,787 but has a modified trigger signal-producing rotor comprising arcuate permanent magnets 63<SP>1</SP> in slots 79 in a single-piece, or laminated, member 25 of magnetic material having an outer periphery eccentrically disposed relative to the rotor axis, with opposite poles of the magnets 63<SP>1</SP> being adjacent a radial slot A in member 25, the slot A producing trigger signals in trigger coils 23 to give rise to ignition pulses below a predetermined engine speed, and a notch C adjacent slot A giving rise to advanced ignition above this speed. Inner and outer segments 81, 83 of the member 25 are joined by a bridge 87, serving as a magnetic short for the adjacent ends of magnets 63<SP>1</SP>, and by legs 85 defining the slot A and serving to produce a highly concentrated field for inducing the trigger signals in coils 23.
GB48429/75A 1974-11-25 1975-11-25 Engine ignition system with spark advance Expired GB1536124A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/527,103 US3961618A (en) 1973-01-10 1974-11-25 Small engine ignition system with spark advance

Publications (1)

Publication Number Publication Date
GB1536124A true GB1536124A (en) 1978-12-20

Family

ID=24100105

Family Applications (2)

Application Number Title Priority Date Filing Date
GB48429/75A Expired GB1536124A (en) 1974-11-25 1975-11-25 Engine ignition system with spark advance
GB27156/78A Expired GB1536125A (en) 1974-11-25 1975-11-25 Engine ignition with spark advance

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB27156/78A Expired GB1536125A (en) 1974-11-25 1975-11-25 Engine ignition with spark advance

Country Status (4)

Country Link
JP (1) JPS5177732A (en)
BR (1) BR7507803A (en)
DE (1) DE2552909A1 (en)
GB (2) GB1536124A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325350A (en) * 1979-11-28 1982-04-20 Brunswick Corporation Alternator-powered breakerless capacitor discharge ignition system having improved low-speed timing characteristics
JPH0292066U (en) * 1988-12-29 1990-07-20

Also Published As

Publication number Publication date
GB1536125A (en) 1978-12-20
BR7507803A (en) 1976-08-10
DE2552909A1 (en) 1976-08-19
JPS5177732A (en) 1976-07-06

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee