GB1002586A - Improvements in ignition systems for internal combustion engines - Google Patents
Improvements in ignition systems for internal combustion enginesInfo
- Publication number
- GB1002586A GB1002586A GB1811962A GB1811962A GB1002586A GB 1002586 A GB1002586 A GB 1002586A GB 1811962 A GB1811962 A GB 1811962A GB 1811962 A GB1811962 A GB 1811962A GB 1002586 A GB1002586 A GB 1002586A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polepieces
- magnet
- transistor
- generator
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title 1
- 238000004804 winding Methods 0.000 abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 229920003002 synthetic resin Polymers 0.000 abstract 1
- 239000000057 synthetic resin Substances 0.000 abstract 1
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
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)
Abstract
1,002,586. Spark ignition systems. ROBERT BOSCH G.m.b.H. May 11, 1962 [May 13, 1961], No. 18119/62. Heading F1B. [Also in Division H2] In an ignition system comprising a normally conducting transistor 13 which is energized to block the current flow through the primary 10 of an ignition coil 11 at the instant of ignition, the base of the transistor is connected to the tapping of a voltage divider 25, 26, connected across the D.C. source, through a resistor 27 in parallel with which is connected an enginedriven permanent magnet impulse generator 30 and a rectifier 34, the magnetic system of the generator being such that the impulse induced in the generator winding and passing through the rectifier to block the transistor has a duration, at most, of a quarter of the periodic time of the pulses. The pulse generator is. built-into the distributer 40, Fig. 2, and comprises an axially polarised rotary magnet 54 and stationary windings 31, 32, each of which has a rectifier 34, 35, Fig. 1, associated therewith. In Fig. 2 the magnet has an upper polepiece 55 with two narrow axial ribs 58, 59, and lower polepiece 60 with similar narrow ribs 63, 64, Fig. 3. The windings 31, 32 are surrounded by sheet metal casings 65, 66, having interfitting polepieces 72, 73, and 68, 69, with small air gaps between adjacent polepieces. The magnet 54 generates sharp positive and negative pulses in the windings each time its polepieces pass the air gaps between the stator polepieces. Due to the rectifiers 34, 35, only the positive pulses are operative to block the transistor 13, whereby a high voltage is induced in the secondary coil 12 connected through the distributer 18 to the spark plugs 22. In a modification, Fig. 7, the impulse generator magnet comprises circumferentially polarised magnets 82 with soft iron polepieces 81 held within a synthetic resin casing 83, 84. In Fig. 9 the magnet is formed with four arms 91 on which laminated polepieces 94 are riveted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB62469A DE1193309B (en) | 1961-05-13 | 1961-05-13 | Ignition device for internal combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1002586A true GB1002586A (en) | 1965-08-25 |
Family
ID=6973586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1811962A Expired GB1002586A (en) | 1961-05-13 | 1962-05-11 | Improvements in ignition systems for internal combustion engines |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1193309B (en) |
| GB (1) | GB1002586A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2552754C2 (en) * | 1975-11-25 | 1983-12-15 | Robert Bosch Gmbh, 7000 Stuttgart | Electrical control signal generator for triggering ignition processes in internal combustion engines |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1099268B (en) * | 1955-09-12 | 1961-02-09 | Siemens Ag | Electric ignition device for internal combustion engines |
| FR1137949A (en) * | 1955-12-01 | 1957-06-05 | Novi | New high voltage ignition device |
| US2918913A (en) * | 1957-06-12 | 1959-12-29 | Weselco Ltd | Ignition systems of internal combustion engines |
-
1961
- 1961-05-13 DE DEB62469A patent/DE1193309B/en active Pending
-
1962
- 1962-05-11 GB GB1811962A patent/GB1002586A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1193309B (en) | 1965-05-20 |
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