GB1420104A - Internal combustion engines ignition timing systems - Google Patents
Internal combustion engines ignition timing systemsInfo
- Publication number
- GB1420104A GB1420104A GB281273A GB281273A GB1420104A GB 1420104 A GB1420104 A GB 1420104A GB 281273 A GB281273 A GB 281273A GB 281273 A GB281273 A GB 281273A GB 1420104 A GB1420104 A GB 1420104A
- Authority
- GB
- United Kingdom
- Prior art keywords
- box
- engine
- stop
- valve
- rod
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Ignition Timing (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
1420104 Ignition timing ROBERT BOSCH GmbH 19 Jan 1973 [21 Jan 1972] 2812/73 Heading F1B An I.C. engine has an ignition timing system for reducing pollution from the engine during warm-up comprising first and second vacuum-operated adjusting boxes 25, 26 for sensing pressures in the engine induction system, the adjusting boxes being connected by an adjusting rod 24 to an adjusting plate of an ignition distributor 23 of the engine, the box 25 being operable to displace the rod 24 to retard the ignition in a first operating range of the engine in response to pressure reduction in the box 25 and the box 26 being operable to displace the rod 24 in the reverse direction to advance the ignition in response to a pressure reduction in the second adjusting box in a second operating range of the engine, the maximum rod travel in the retarding direction being variable by means of a stop 27 whose position depends on the engine temperature. Switch 30 is closed during heating of the engine exhaust system and opens when. it reaches operating temperature, closure of this switch actuating an electromagnet 29 to withdraw the stop 27 from recess 28 to allow rod 24 greater movement, valve 33 to provide a by-pass from upstream of throttle valve 34 to inlet manifold 32 and valve 31 to connect box 25 to manifold 32 and box 26 to location 36 adjacent the throttle valve. When the exhaust system has reached operating temperature, switch 30 opens allowing stop 27 to engage recess 28, valve 33 to close and valve 31 to connect box 25 to location 37 and box 26 to location 36. The engagement of stop 27 in recess 28 limits ignition retardation to about 5 degrees after TDC, but when the stop is withdrawn during warm-up, maximum retardation can be in the range 10 degrees to 25 degrees after TDC. In Fig. 6 (not shown), the stop 27 and valve 33 are actuated by vacuum boxes (42), (45). In Figs. 10 and 14 (not shown) the vacuum advance/retard unit has three boxes (51), (52), (53), the box (53) acting to control the position of a stop to limit movement of rod 24 in dependence upon the position of switch 30, responsive to exhaust system temperature.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2202786A DE2202786C3 (en) | 1972-01-21 | 1972-01-21 | Device for adjusting the ignition point |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1420104A true GB1420104A (en) | 1976-01-07 |
Family
ID=5833598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB281273A Expired GB1420104A (en) | 1972-01-21 | 1973-01-19 | Internal combustion engines ignition timing systems |
Country Status (8)
Country | Link |
---|---|
US (1) | US3865089A (en) |
JP (1) | JPS5815623B2 (en) |
DE (1) | DE2202786C3 (en) |
FR (1) | FR2168836A5 (en) |
GB (1) | GB1420104A (en) |
IT (1) | IT973275B (en) |
NL (1) | NL168301C (en) |
SE (1) | SE386480B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4307686A (en) * | 1976-05-26 | 1981-12-29 | Nippondenso Co., Ltd. | Intake vacuum actuated ignition timing shift device with two vacuum chambers and a composite shift characteristic |
GB2137692A (en) * | 1983-03-10 | 1984-10-10 | Fuji Heavy Ind Ltd | System for controlling the ignition timing of an engine |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5264235U (en) * | 1975-11-06 | 1977-05-12 | ||
DE2603322C2 (en) * | 1976-01-29 | 1983-01-20 | Toyota Jidosha Kogyo K.K., Toyota, Aichi | Ignition timing device |
JPS52134940A (en) * | 1976-05-06 | 1977-11-11 | Toyota Motor Corp | Ignition timing control means for internal combustion engine |
JPS53118931U (en) * | 1977-03-01 | 1978-09-21 | ||
JPS53123733A (en) * | 1977-04-05 | 1978-10-28 | Fuji Heavy Ind Ltd | Ignition timing adjusting equipment for internal combustion engine |
JPS53150337U (en) * | 1977-04-30 | 1978-11-27 | ||
US4159702A (en) * | 1977-12-27 | 1979-07-03 | Ford Motor Company | Engine ignition timing control with multi-stage advances, retard, and altitude compensation functions |
DE2818469A1 (en) * | 1978-04-27 | 1979-11-08 | Porsche Ag | DEVICE FOR ADJUSTING THE IGNITION TIME FOR COMBUSTION MACHINERY |
DE2838726A1 (en) * | 1978-09-06 | 1980-03-27 | Bosch Gmbh Robert | IGNITION DISTRIBUTOR FOR INTERNAL COMBUSTION ENGINES |
FR2500073B1 (en) * | 1981-02-18 | 1985-11-08 | Ducellier & Cie | IGNITION ADVANCE CORRECTION DEVICE |
JPS5990771A (en) * | 1982-11-15 | 1984-05-25 | Nissan Motor Co Ltd | Ignition timing controlling apparatus for internal-combustion engine |
JPS5986366U (en) * | 1982-12-03 | 1984-06-11 | 日産自動車株式会社 | Internal combustion engine ignition timing control device |
JPS5999177U (en) * | 1982-12-23 | 1984-07-04 | 日産自動車株式会社 | Internal combustion engine ignition timing control device |
DE3337429A1 (en) * | 1983-10-14 | 1985-04-25 | Bayerische Motoren Werke AG, 8000 München | DEVICE FOR ADJUSTING THE IDLE OF AN INTERNAL COMBUSTION ENGINE |
DE3342920A1 (en) * | 1983-11-26 | 1985-06-05 | Robert Bosch Gmbh, 7000 Stuttgart | IGNITION DISTRIBUTOR FOR INTERNAL COMBUSTION ENGINES |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3426737A (en) * | 1965-10-23 | 1969-02-11 | Brooks Walker | Spark retard control |
US3447518A (en) * | 1967-10-05 | 1969-06-03 | Brooks Walker | Thermal spark retard |
JPS4938219B1 (en) * | 1968-09-03 | 1974-10-16 | ||
US3515368A (en) * | 1968-09-11 | 1970-06-02 | Eaton Yale & Towne | Thermally responsive on and off vacuum control valve |
US3561410A (en) * | 1968-11-29 | 1971-02-09 | Holley Carburetor Co | Engine ignition timing arrangement |
US3626909A (en) * | 1969-06-17 | 1971-12-14 | Toyo Kogyo Co | Rotary piston internal combustion engine |
DE1933507B2 (en) * | 1969-07-02 | 1972-12-07 | Daimler Benz Ag, 7000 Stuttgart | ADJUSTMENT DEVICE FOR IGNITION TIME AND THROTTLE VALVE CLOSING OF COMBUSTION MACHINERY |
US3631845A (en) * | 1969-09-26 | 1972-01-04 | Brooks Walker | Spark timing control for internal-combustion engine |
US3670709A (en) * | 1970-05-25 | 1972-06-20 | Gen Motors Corp | Idle air control |
JPS501648B1 (en) * | 1971-02-24 | 1975-01-20 |
-
1972
- 1972-01-21 DE DE2202786A patent/DE2202786C3/en not_active Expired
- 1972-06-29 US US267562A patent/US3865089A/en not_active Expired - Lifetime
- 1972-12-29 IT IT34069/72A patent/IT973275B/en active
-
1973
- 1973-01-19 GB GB281273A patent/GB1420104A/en not_active Expired
- 1973-01-19 NL NLAANVRAGE7300812,A patent/NL168301C/en not_active IP Right Cessation
- 1973-01-19 SE SE7300778A patent/SE386480B/en unknown
- 1973-01-22 JP JP48009427A patent/JPS5815623B2/en not_active Expired
- 1973-01-22 FR FR7302141A patent/FR2168836A5/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4307686A (en) * | 1976-05-26 | 1981-12-29 | Nippondenso Co., Ltd. | Intake vacuum actuated ignition timing shift device with two vacuum chambers and a composite shift characteristic |
GB2137692A (en) * | 1983-03-10 | 1984-10-10 | Fuji Heavy Ind Ltd | System for controlling the ignition timing of an engine |
Also Published As
Publication number | Publication date |
---|---|
NL168301B (en) | 1981-10-16 |
US3865089A (en) | 1975-02-11 |
IT973275B (en) | 1974-06-10 |
FR2168836A5 (en) | 1973-08-31 |
DE2202786C3 (en) | 1980-07-31 |
JPS4882233A (en) | 1973-11-02 |
JPS5815623B2 (en) | 1983-03-26 |
NL7300812A (en) | 1973-07-24 |
DE2202786B2 (en) | 1979-11-08 |
NL168301C (en) | 1982-03-16 |
SE386480B (en) | 1976-08-09 |
DE2202786A1 (en) | 1973-07-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |