US3356082A - Spark ignition circuit - Google Patents
Spark ignition circuit Download PDFInfo
- Publication number
- US3356082A US3356082A US506357A US50635765A US3356082A US 3356082 A US3356082 A US 3356082A US 506357 A US506357 A US 506357A US 50635765 A US50635765 A US 50635765A US 3356082 A US3356082 A US 3356082A
- Authority
- US
- United States
- Prior art keywords
- transistor
- spark ignition
- ignition circuit
- winding
- circuit
- 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
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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
- F02P9/00—Electric spark ignition control, not otherwise provided for
- F02P9/002—Control of spark intensity, intensifying, lengthening, suppression
- F02P9/005—Control of spark intensity, intensifying, lengthening, suppression by weakening or suppression of sparks to limit the engine speed
Definitions
- This invention relates to spark ignition circuits, and in its broad
- the accompanying drawing is a circuit diagram illustrating one example of the invention.
- a magnetic pick-up winding 11 which is associated with the starter to the line 17 through a resistor 36, and its collector connected to the terminal 13 through a resistor 37.
- the collector of the transistor 33 is further connected through resistors 38, 39 in series to the line 17, a point intermediate the resistors 33, 39 being connected to the base of a transistor 41 having its emitter connected to the emitter of the transistor 33 and its collector connected to the application Great Britain, Dec. 2, 1964, v
- the transistor 43 has its emitter connected to the terminal 13, and its collector connected to the terminal 14 through resistors 44, 45 in series With the ignition switch 19.
- a point intermediate the resistors 44, 45 is connected to the gate of a controlled rectifier 46 the cathode of which is connected to the terminal 14 through the switch 19, and the anode of which is connected to the terminal 13 through the primary winding 47 of an ignition transformer 48 and a contact breaker 49 in series.
- the contact breaker 49 is bridged by a capacitor 51 in the usual way, and the secondary winding 52 of the ignition coil is connected through a distributor to the spark plugs of the engine in turn.
- the supply between the terminal 13 and line 17 is stabilised by a Zener diode 53.
- pulses are developed in the winding 11 at a frequency proportional to engine speed.
- the capacitors 16, 21 are not both essential, but their inclusion enables the circuits to be used for positive or negative earth systems.
- the output from the winding 11 is in the form of a sine wave and the transistors 23, 27 and their associated components form an amplifier in which positive feedback is provided by way of the resistor 26, this amplifier serving to convert the sine wave to a square wave form which appears across the resistor 28.
- a variable proportion of engine speed is provided by way of the resistor 26, this amplifier serving to convert the sine wave to a square wave form which appears across the resistor 28.
- the bistable circuit constituted by the transistors 33, 41 and their associated components operates in its state in which the transistor 41 conducts, so that base current is supplied to the transistor 43, which also conducts. Conduction of the transistor 43 causes a positive gate-cathode current to flow in the rectifier 46, which therefore conducts.
- the contact breaker is closed, current builds up in the winding 47 in the normal way, and when the contact breaker 49 opens, a spark is produced, When the contact breaker 49 closes again, the rectifier 46 will conduct again because it is still supplied with gate-cathode current.
- the voltage across the capacitor 34 reaches a value at which it causes the transistor 33 to conduct, whereupon the bistable circuit is driven to its alternative state in which the transistor 41 ceases to con duct, so that no base current is supplied to the transistor 43.
- the rectifier 46 now conducts only until the contact breaker 49 opens, because when the contact breaker 49 closes again, there is no gate-cathode current flow in the rectifier 46, and so the circuit of the primary winding 47 is not completed.
- the circuit described has the advantage that because the pulses derived from the ring 12 have a high frequency, there will be very little speed overshoot before the rectifier 46 stops sparks from being supplied to the plugs.
- the circuit described can be utilised in road vehicles or in other applications, for example in motorboats.
- a spark ignition circuit for use with an internal combustion engine having spark plugs and a toothed starter gear ring comprising in combination an ignition transformer having a primary winding and a secondary winding, said ignition transformer producing sparks at said plugs 1n turn, a magnetic pick-up winding associated with said starter gear ring, said starter gear ring producing References Cited.
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- 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)
Description
Dec. 5, 1967 N. A. JUKE S SPARK IGNITION CIRCUIT Filed Nov. 4, 1965 United States Patent 3,356,082 SPARK IGNITION CIRCUIT Norman Alfred Jukes, Walsall, England, assignor to Joseph Lucas (Industries) Limited, Birmingham,
England Filed Nov. 4, 1965, Ser. No. 506,357
Claims priority,
1 Claim. (Cl. 123102) ABSTRACT OF THE DISCLOSURE value.
This invention relates to spark ignition circuits, and in its broad The accompanying drawing is a circuit diagram illustrating one example of the invention.
Referring to the drawing, there is provided a magnetic pick-up winding 11 which is associated with the starter to the line 17 through a resistor 36, and its collector connected to the terminal 13 through a resistor 37. The collector of the transistor 33 is further connected through resistors 38, 39 in series to the line 17, a point intermediate the resistors 33, 39 being connected to the base of a transistor 41 having its emitter connected to the emitter of the transistor 33 and its collector connected to the application Great Britain, Dec. 2, 1964, v
terminal 13 through a resistor 42 and also connected to the base of a transistor 43. The transistor 43 has its emitter connected to the terminal 13, and its collector connected to the terminal 14 through resistors 44, 45 in series With the ignition switch 19. A point intermediate the resistors 44, 45 is connected to the gate of a controlled rectifier 46 the cathode of which is connected to the terminal 14 through the switch 19, and the anode of which is connected to the terminal 13 through the primary winding 47 of an ignition transformer 48 and a contact breaker 49 in series. The contact breaker 49 is bridged by a capacitor 51 in the usual way, and the secondary winding 52 of the ignition coil is connected through a distributor to the spark plugs of the engine in turn. The supply between the terminal 13 and line 17 is stabilised by a Zener diode 53.
In use, pulses are developed in the winding 11 at a frequency proportional to engine speed. The capacitors 16, 21 are not both essential, but their inclusion enables the circuits to be used for positive or negative earth systems. The output from the winding 11 is in the form of a sine wave and the transistors 23, 27 and their associated components form an amplifier in which positive feedback is provided by way of the resistor 26, this amplifier serving to convert the sine wave to a square wave form which appears across the resistor 28. A variable proportion of engine speed.
As long as the speed of the engine is below a predetermined value, the bistable circuit constituted by the transistors 33, 41 and their associated components operates in its state in which the transistor 41 conducts, so that base current is supplied to the transistor 43, which also conducts. Conduction of the transistor 43 causes a positive gate-cathode current to flow in the rectifier 46, which therefore conducts. When the contact breaker is closed, current builds up in the winding 47 in the normal way, and when the contact breaker 49 opens, a spark is produced, When the contact breaker 49 closes again, the rectifier 46 will conduct again because it is still supplied with gate-cathode current.
When the speed of the engine rises above a predetermined value which can be altered by altering the variable on the resistor 28, the voltage across the capacitor 34 reaches a value at which it causes the transistor 33 to conduct, whereupon the bistable circuit is driven to its alternative state in which the transistor 41 ceases to con duct, so that no base current is supplied to the transistor 43. The rectifier 46 now conducts only until the contact breaker 49 opens, because when the contact breaker 49 closes again, there is no gate-cathode current flow in the rectifier 46, and so the circuit of the primary winding 47 is not completed.
The circuit described has the advantage that because the pulses derived from the ring 12 have a high frequency, there will be very little speed overshoot before the rectifier 46 stops sparks from being supplied to the plugs.
The circuit described can be utilised in road vehicles or in other applications, for example in motorboats.
Having thus described my invention what I claim as new and desire to secure by Letters Patent is:
A spark ignition circuit for use with an internal combustion engine having spark plugs and a toothed starter gear ring, comprising in combination an ignition transformer having a primary winding and a secondary winding, said ignition transformer producing sparks at said plugs 1n turn, a magnetic pick-up winding associated with said starter gear ring, said starter gear ring producing References Cited. UNITED STATES PATENTS 2,957,135 10/1960 Gray 324-70 X 5 3,116,596 1/1964 Boehme 60---30 3,153,746 10/1964 Atkinson 3175 3,182,648 5/1965 Schneider 123*"1'148 3,3 14,407 4/ 1967 Schneider 10 RALPH D. BLAKESLEE, Primary Emma
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB48947/64A GB1111716A (en) | 1964-12-02 | 1964-12-02 | Spark ignition circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
US3356082A true US3356082A (en) | 1967-12-05 |
Family
ID=10450556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US506357A Expired - Lifetime US3356082A (en) | 1964-12-02 | 1965-11-04 | Spark ignition circuit |
Country Status (2)
Country | Link |
---|---|
US (1) | US3356082A (en) |
GB (1) | GB1111716A (en) |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3517260A (en) * | 1966-10-29 | 1970-06-23 | Nippon Denso Co | Transistorized condenser discharge ignition system with a vacuum regulator |
US3581720A (en) * | 1968-11-22 | 1971-06-01 | Silicon Systems Inc | Electronic engine r.p.m. limiting device |
US3601104A (en) * | 1970-02-25 | 1971-08-24 | Gen Motors Corp | Proportional control top speed limiter |
US3601103A (en) * | 1969-10-13 | 1971-08-24 | Ladell Ray Swiden | Engine-condition-responsive cutoff apparatus |
DE2131064A1 (en) * | 1970-06-27 | 1972-01-05 | Lucas Industries Ltd | Speed limiting device for internal combustion engines |
US3661130A (en) * | 1969-03-19 | 1972-05-09 | Bosch Gmbh Robert | Safety device for limiting the rotational speed of internal combustion engines |
US3665903A (en) * | 1969-02-03 | 1972-05-30 | Lucas Industries Ltd | Speed limiting systems for internal combustion engines |
US3680655A (en) * | 1970-07-06 | 1972-08-01 | Gen Motors Corp | Electrical wheel slip limiting apparatus |
US3691873A (en) * | 1970-09-21 | 1972-09-19 | Renault | Frequency-responsive control devices, notably for reducing the air pollution caused by petrol engines |
US3701015A (en) * | 1971-01-20 | 1972-10-24 | Electro Products Lab Inc | Magnetic pickup with feedback circuit |
US3704699A (en) * | 1970-06-24 | 1972-12-05 | Howard Associates Inc | Capacitor discharge ignition system with revolution limiter |
US3726265A (en) * | 1971-03-18 | 1973-04-10 | Bri Corp | Ignition magneto safety interlock |
US3738340A (en) * | 1972-01-10 | 1973-06-12 | Ikon Eng Inc | Internal combustion engine limiter |
US3757570A (en) * | 1971-10-06 | 1973-09-11 | Rca Corp | Simulated load for internal combustion engines |
US3776357A (en) * | 1971-02-23 | 1973-12-04 | Toyota Motor Co Ltd | Anti-skid control system |
US3788421A (en) * | 1971-07-09 | 1974-01-29 | Ford Motor Co | Electric circuitry for vehicle speed responsive system |
US3809038A (en) * | 1972-08-24 | 1974-05-07 | Dana Corp | Exhaust pollution control apparatus |
US3810451A (en) * | 1971-12-17 | 1974-05-14 | Gen Motors Corp | Ignition spark vacuum advance system |
US3822684A (en) * | 1971-02-17 | 1974-07-09 | Lucas Industries Ltd | Control systems for vehicles |
US3858563A (en) * | 1972-08-17 | 1975-01-07 | Bosch Gmbh Robert | Electronic ignition system with means for limiting engine speed |
US3863616A (en) * | 1971-09-13 | 1975-02-04 | Outboard Marine Corp | Capacitor discharge system with speed control sub-circuit |
US3893007A (en) * | 1973-07-06 | 1975-07-01 | Nippon Denso Co | Vehicle starter protective system |
US3952715A (en) * | 1974-05-06 | 1976-04-27 | The Bendix Corporation | Variable and constant timing for breakerless ignition |
US3967604A (en) * | 1973-06-14 | 1976-07-06 | Kokusan Denki Co., Ltd. | Device for preventing an internal combustion engine from revolving at more than the predetermined speed |
US4060736A (en) * | 1976-03-11 | 1977-11-29 | Triangle Package Machinery Co. | Control system for cyclic operations |
US4074665A (en) * | 1969-06-06 | 1978-02-21 | Outboard Marine Corporation | Engine speed limiter |
US4106440A (en) * | 1974-12-31 | 1978-08-15 | Motorola, Inc. | Electronic spark timing adjustment circuit |
US4144859A (en) * | 1975-12-15 | 1979-03-20 | Iida Denki Kogyo K.K. | Oven-rotation prevention method and circuit in the non-contact type ignition circuit for the internal combustion engine |
US4204490A (en) * | 1975-12-15 | 1980-05-27 | Iida Denki Kogyo K.K. | Over-rotation prevention method and circuit in the non-contact type ignition circuit for the internal combustion engine |
US4324215A (en) * | 1980-04-30 | 1982-04-13 | Eltra Corporation | Engine speed limiting circuit |
US4648366A (en) * | 1985-05-06 | 1987-03-10 | Thornton Trump Walter E | Vehicle speed control device |
US4971001A (en) * | 1989-10-19 | 1990-11-20 | Briggs & Stratton Corporation | Engine shut-off system |
US4984543A (en) * | 1989-11-01 | 1991-01-15 | Briggs & Stratton Corporation | Oil pressure interlock switch powered by the engine starter |
US4986228A (en) * | 1989-11-01 | 1991-01-22 | Briggs & Stratton Corporation | Low oil pressure interlock switch |
US4995357A (en) * | 1989-11-13 | 1991-02-26 | Briggs & Stratton Corporation | Engine shut-off circuit |
US5483156A (en) * | 1992-09-22 | 1996-01-09 | Fuji Koki Manufacturing Co., Ltd. | Magnetic field alternation detecting apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1536204A (en) * | 1976-03-05 | 1978-12-20 | Lumenition Ltd | Devices for limiting the speed of revolution of an internal combustion engine having spark ignition |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2957135A (en) * | 1956-12-18 | 1960-10-18 | Gen Precision Inc | Frequency measuring device |
US3116596A (en) * | 1961-05-25 | 1964-01-07 | Universal Oil Prod Co | Flywheel air pump |
US3153746A (en) * | 1961-07-03 | 1964-10-20 | Duane E Atkinson | Internal combustion engine overspeed control |
US3182648A (en) * | 1962-04-02 | 1965-05-11 | Holley Carburetor Co | Speed responsive switching apparatus |
US3314407A (en) * | 1964-09-28 | 1967-04-18 | Holley Carburetor Co | Electronic advance for engine ignition systems |
-
1964
- 1964-12-02 GB GB48947/64A patent/GB1111716A/en not_active Expired
-
1965
- 1965-11-04 US US506357A patent/US3356082A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2957135A (en) * | 1956-12-18 | 1960-10-18 | Gen Precision Inc | Frequency measuring device |
US3116596A (en) * | 1961-05-25 | 1964-01-07 | Universal Oil Prod Co | Flywheel air pump |
US3153746A (en) * | 1961-07-03 | 1964-10-20 | Duane E Atkinson | Internal combustion engine overspeed control |
US3182648A (en) * | 1962-04-02 | 1965-05-11 | Holley Carburetor Co | Speed responsive switching apparatus |
US3314407A (en) * | 1964-09-28 | 1967-04-18 | Holley Carburetor Co | Electronic advance for engine ignition systems |
Cited By (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3517260A (en) * | 1966-10-29 | 1970-06-23 | Nippon Denso Co | Transistorized condenser discharge ignition system with a vacuum regulator |
US3581720A (en) * | 1968-11-22 | 1971-06-01 | Silicon Systems Inc | Electronic engine r.p.m. limiting device |
US3665903A (en) * | 1969-02-03 | 1972-05-30 | Lucas Industries Ltd | Speed limiting systems for internal combustion engines |
US3661130A (en) * | 1969-03-19 | 1972-05-09 | Bosch Gmbh Robert | Safety device for limiting the rotational speed of internal combustion engines |
US4074665A (en) * | 1969-06-06 | 1978-02-21 | Outboard Marine Corporation | Engine speed limiter |
US3601103A (en) * | 1969-10-13 | 1971-08-24 | Ladell Ray Swiden | Engine-condition-responsive cutoff apparatus |
US3601104A (en) * | 1970-02-25 | 1971-08-24 | Gen Motors Corp | Proportional control top speed limiter |
US3704699A (en) * | 1970-06-24 | 1972-12-05 | Howard Associates Inc | Capacitor discharge ignition system with revolution limiter |
US3776204A (en) * | 1970-06-27 | 1973-12-04 | Lucas Industries Ltd | Speed limiting systems for internal combustion engines |
DE2131064A1 (en) * | 1970-06-27 | 1972-01-05 | Lucas Industries Ltd | Speed limiting device for internal combustion engines |
FR2099793A5 (en) * | 1970-06-27 | 1972-03-17 | Lucas Industries Ltd | |
US3680655A (en) * | 1970-07-06 | 1972-08-01 | Gen Motors Corp | Electrical wheel slip limiting apparatus |
US3691873A (en) * | 1970-09-21 | 1972-09-19 | Renault | Frequency-responsive control devices, notably for reducing the air pollution caused by petrol engines |
US3701015A (en) * | 1971-01-20 | 1972-10-24 | Electro Products Lab Inc | Magnetic pickup with feedback circuit |
US3822684A (en) * | 1971-02-17 | 1974-07-09 | Lucas Industries Ltd | Control systems for vehicles |
US3776357A (en) * | 1971-02-23 | 1973-12-04 | Toyota Motor Co Ltd | Anti-skid control system |
US3726265A (en) * | 1971-03-18 | 1973-04-10 | Bri Corp | Ignition magneto safety interlock |
US3788421A (en) * | 1971-07-09 | 1974-01-29 | Ford Motor Co | Electric circuitry for vehicle speed responsive system |
US3863616A (en) * | 1971-09-13 | 1975-02-04 | Outboard Marine Corp | Capacitor discharge system with speed control sub-circuit |
US3757570A (en) * | 1971-10-06 | 1973-09-11 | Rca Corp | Simulated load for internal combustion engines |
US3810451A (en) * | 1971-12-17 | 1974-05-14 | Gen Motors Corp | Ignition spark vacuum advance system |
US3738340A (en) * | 1972-01-10 | 1973-06-12 | Ikon Eng Inc | Internal combustion engine limiter |
US3858563A (en) * | 1972-08-17 | 1975-01-07 | Bosch Gmbh Robert | Electronic ignition system with means for limiting engine speed |
US3809038A (en) * | 1972-08-24 | 1974-05-07 | Dana Corp | Exhaust pollution control apparatus |
US3967604A (en) * | 1973-06-14 | 1976-07-06 | Kokusan Denki Co., Ltd. | Device for preventing an internal combustion engine from revolving at more than the predetermined speed |
US3893007A (en) * | 1973-07-06 | 1975-07-01 | Nippon Denso Co | Vehicle starter protective system |
US3952715A (en) * | 1974-05-06 | 1976-04-27 | The Bendix Corporation | Variable and constant timing for breakerless ignition |
US4106440A (en) * | 1974-12-31 | 1978-08-15 | Motorola, Inc. | Electronic spark timing adjustment circuit |
US4144859A (en) * | 1975-12-15 | 1979-03-20 | Iida Denki Kogyo K.K. | Oven-rotation prevention method and circuit in the non-contact type ignition circuit for the internal combustion engine |
US4204490A (en) * | 1975-12-15 | 1980-05-27 | Iida Denki Kogyo K.K. | Over-rotation prevention method and circuit in the non-contact type ignition circuit for the internal combustion engine |
US4060736A (en) * | 1976-03-11 | 1977-11-29 | Triangle Package Machinery Co. | Control system for cyclic operations |
US4324215A (en) * | 1980-04-30 | 1982-04-13 | Eltra Corporation | Engine speed limiting circuit |
US4648366A (en) * | 1985-05-06 | 1987-03-10 | Thornton Trump Walter E | Vehicle speed control device |
US4971001A (en) * | 1989-10-19 | 1990-11-20 | Briggs & Stratton Corporation | Engine shut-off system |
US4984543A (en) * | 1989-11-01 | 1991-01-15 | Briggs & Stratton Corporation | Oil pressure interlock switch powered by the engine starter |
US4986228A (en) * | 1989-11-01 | 1991-01-22 | Briggs & Stratton Corporation | Low oil pressure interlock switch |
US4995357A (en) * | 1989-11-13 | 1991-02-26 | Briggs & Stratton Corporation | Engine shut-off circuit |
US5483156A (en) * | 1992-09-22 | 1996-01-09 | Fuji Koki Manufacturing Co., Ltd. | Magnetic field alternation detecting apparatus |
Also Published As
Publication number | Publication date |
---|---|
GB1111716A (en) | 1968-05-01 |
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