GB1335893A - Fuel injection systems for internal combustion engines - Google Patents
Fuel injection systems for internal combustion enginesInfo
- Publication number
- GB1335893A GB1335893A GB3269171A GB3269171A GB1335893A GB 1335893 A GB1335893 A GB 1335893A GB 3269171 A GB3269171 A GB 3269171A GB 3269171 A GB3269171 A GB 3269171A GB 1335893 A GB1335893 A GB 1335893A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulses
- network
- engine speed
- engine
- transistor
- 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
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/12—Introducing corrections for particular operating conditions for deceleration
- F02D41/123—Introducing corrections for particular operating conditions for deceleration the fuel injection being cut-off
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
1335893 Electronic fuel injection Systems ROBERT BOSCH GmbH 13 July 1971 [14 July 1970] 32691/71 Heading G1N In an I. C. engine electronic fuel injection system of the type having a monostable multivibrator to provide injection valve opening pulses in synchronism with engine rotation a first electronic device is provided to operate, when the butterfly valve of the engine is closed, to prevent the opening pulses being effective when the engine speed exceeds an upper limit and to allow the pulses to be effective again when the engine speed falls to a lower limit above the idling speed, and a second electronic device is provided to operate, in any operating position of the butterfly valve, to prevent the opening pulses being effective when the maximum engine speed is exceeded, the pulses being restored below this speed. As shown, in normal operation, the multivibrator 16 provides pulses to block a transistor 48 which in turn causes energisation of the valve solenoids 13 via transistor 11. The output of the multi-vibrator 16 is also applied to two passive networks 30, 30', whose outputs are in turn applied to respective bistable circuits 45, 46 having a common transistor formed by transistor 48. When the butterfly valve is closed, a switch 39 in the network 30 is closed and if the engine speed exceeds the upper limit, the network 30 switches the bistable circuit 45 and prevents transistor 48 from becoming blocked to provide the opening pulses. A resistor 53 provides the hysteresis whereby the engine speed must fall to the lower limit before the opening pulses can be restored. Network 30' operates in a similar manner for maximum engine speed cut-off, switch 39 and resistor 53 being, however, omitted. In a modification, Fig. 2 (not shown), the two electronic inhibiting devices are applied to a two group injection system utilising a bistable circuit to trigger the monostable multivibrator 16 and AND gates to select the group of injectors for immediate energisation. In further modifications, the lower limiting speed to which the network 30 is responsive may be engine temperature dependent by replacing the resistor 35 with a temperature dependent voltage divider. Further, to avoid the effect of intake manifold pressure on the mark-to -space ratio of the pulses which are applied to the network 30', the input of the network 30' can be connected to a constant mark-to-space ratio pulse generator, e.g. the bistable trigger in Fig. 2 (not shown), or a further multivibrator triggered by the multivibrator 16.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19702034764 DE2034764A1 (en) | 1970-07-14 | 1970-07-14 | Control device for injection system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1335893A true GB1335893A (en) | 1973-10-31 |
Family
ID=5776660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3269171A Expired GB1335893A (en) | 1970-07-14 | 1971-07-13 | Fuel injection systems for internal combustion engines |
Country Status (8)
Country | Link |
---|---|
US (1) | US3736910A (en) |
AT (1) | AT311126B (en) |
CH (1) | CH526042A (en) |
DE (1) | DE2034764A1 (en) |
FR (1) | FR2101674A5 (en) |
GB (1) | GB1335893A (en) |
SE (1) | SE368260B (en) |
SU (1) | SU442614A3 (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4898221A (en) * | 1972-03-30 | 1973-12-13 | ||
US3916170A (en) * | 1973-04-25 | 1975-10-28 | Nippon Denso Co | Air-fuel ratio feed back type fuel injection control system |
USRE29741E (en) * | 1973-04-25 | 1978-08-22 | Nippondenso Co., Ltd. | Air-fuel ratio feed back type fuel injection control system |
FR2231293A5 (en) * | 1973-05-22 | 1974-12-20 | Ducellier & Cie | |
US4210116A (en) * | 1974-03-19 | 1980-07-01 | Holec N.V. | Electromagnetically actuated pumps |
DE2452808C3 (en) * | 1974-11-07 | 1982-01-07 | Robert Bosch Gmbh, 7000 Stuttgart | Device for controlling the injection behavior of a fuel injection system for internal combustion engines during overrun and at the same time for limiting the speed |
GB1568239A (en) * | 1976-02-12 | 1980-05-29 | Semmler F | Vehicle having an internal combustion engine and apparatus for controlling fuel supply to the engine |
DE2704180A1 (en) * | 1977-02-02 | 1978-08-03 | Bosch Gmbh Robert | DEVICE FOR INTERRUPTING THE FUEL SUPPLY IN A COMBUSTION ENGINE |
DE2800433A1 (en) * | 1978-01-05 | 1979-07-19 | Bosch Gmbh Robert | DEVICE FOR LIMITING THE SPEED OF A COMBUSTION ENGINE |
JPS5495835A (en) * | 1978-01-11 | 1979-07-28 | Nippon Denso Co Ltd | Diesel engine fuel control system |
DE2834638A1 (en) * | 1978-08-08 | 1980-02-28 | Bosch Gmbh Robert | DEVICE FOR AT LEAST PARTLY INTERRUPTING THE FUEL SUPPLY IN PREFERREDLY INSTALLED COMBUSTION ENGINES IN VEHICLES |
JPS55109738A (en) * | 1979-02-16 | 1980-08-23 | Nissan Motor Co Ltd | Control device for stopping fuel supply |
JPS5654934A (en) * | 1979-10-12 | 1981-05-15 | Nissan Motor Co Ltd | Fuel cut device |
JPS5654933A (en) * | 1979-10-12 | 1981-05-15 | Nissan Motor Co Ltd | Fuel cut device |
EP0036396B1 (en) * | 1980-03-17 | 1984-11-14 | FIAT AUTO S.p.A. | Device for controlling the fuel feed for otto-cycle internal combustion engines for motor vehicles |
US4539643A (en) * | 1981-10-01 | 1985-09-03 | Nissan Motor Company, Limited | Fuel cut-off control system in fuel injection internal combustion engine with automatic power transmission |
GB2116333B (en) * | 1982-03-01 | 1987-01-14 | Honda Motor Co Ltd | Fuel supply control system for internal combustion engines |
JPS58206835A (en) * | 1982-05-28 | 1983-12-02 | Honda Motor Co Ltd | Method of controlling fuel supply upon speed reduction of internal-combustion engine |
JPS59107032U (en) * | 1983-01-10 | 1984-07-19 | 日産自動車株式会社 | Diesel engine fuel control device |
JPS606042A (en) * | 1983-06-15 | 1985-01-12 | Honda Motor Co Ltd | Method of controlling fuel feeding for internal- combustion engine |
JPS60237134A (en) * | 1984-05-07 | 1985-11-26 | Toyota Motor Corp | Air-fuel ratio controller for internal-combustion engine |
JPS6133932U (en) * | 1984-07-31 | 1986-03-01 | 川崎重工業株式会社 | Gas engine abnormality detection device |
IT1182509B (en) * | 1985-07-12 | 1987-10-05 | Weber Spa | MAXIMUM RPM LIMITATION SYSTEM OF AN ENDOTHERMAL ENGINE INCLUDING AN ELECTRONIC INJECTION SYSTEM |
US9108607B2 (en) * | 2012-11-07 | 2015-08-18 | Ford Global Technologies, Llc | Method and system for vacuum generation |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1526503B1 (en) * | 1966-11-03 | 1971-03-04 | Bosch Gmbh Robert | Fuel injection system |
DE1751072A1 (en) * | 1968-03-28 | 1971-02-11 | ||
SE341888B (en) * | 1968-09-21 | 1972-01-17 | Bosch Gmbh Robert | |
US3601103A (en) * | 1969-10-13 | 1971-08-24 | Ladell Ray Swiden | Engine-condition-responsive cutoff apparatus |
-
1970
- 1970-07-14 DE DE19702034764 patent/DE2034764A1/en active Pending
-
1971
- 1971-06-16 CH CH876371A patent/CH526042A/en not_active IP Right Cessation
- 1971-07-08 SU SU1677588A patent/SU442614A3/en active
- 1971-07-12 AT AT605971A patent/AT311126B/en not_active IP Right Cessation
- 1971-07-13 SE SE09063/71A patent/SE368260B/xx unknown
- 1971-07-13 GB GB3269171A patent/GB1335893A/en not_active Expired
- 1971-07-13 US US00165797A patent/US3736910A/en not_active Expired - Lifetime
- 1971-07-13 FR FR7125719A patent/FR2101674A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2101674A5 (en) | 1972-03-31 |
DE2034764A1 (en) | 1972-01-27 |
AT311126B (en) | 1973-10-25 |
SU442614A3 (en) | 1974-09-05 |
CH526042A (en) | 1972-07-31 |
US3736910A (en) | 1973-06-05 |
SE368260B (en) | 1974-06-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1335893A (en) | Fuel injection systems for internal combustion engines | |
US3570460A (en) | Control system for blocking fuel injection in an internal combustion engine | |
US3463130A (en) | Fuel injection control system | |
GB1272595A (en) | Fuel injection systems | |
US3596640A (en) | Fuel injection systems for internal combustion engines | |
GB1474592A (en) | Device for controlling the instant of ignition in ignition systems of internal combustion engines | |
GB1261223A (en) | Improvements in or relating to fuel injection systems for internal combustion engines | |
US3884195A (en) | Electronic control system for internal combustion engine | |
GB1310596A (en) | Fuel injection systems | |
GB2161959A (en) | Fuel injection quantity regulating means | |
GB1323123A (en) | Acceleration actuating device for fuel injection system | |
US4357924A (en) | Fuel injection control system | |
US3742920A (en) | Fuel injection systems | |
GB1352674A (en) | Deceleration control circuit for an internal combustion engine fuel control system | |
GB1371843A (en) | Internal combustion engine | |
US4353342A (en) | Fuel injection control system | |
US3659571A (en) | Electronic speed regulating arrangement for internal combustion engines | |
GB1196378A (en) | Ignition and Fuel Injection Control for an Internal Combustion Engine | |
US3735742A (en) | Engine overrun preventing device for internal combustion engine | |
GB954981A (en) | Electrically controlled fuel supply system for an internal combustion engine | |
GB904461A (en) | Improvements in or relating to fuel injection systems for internal combustion engines | |
GB1273458A (en) | An electronically controlled fuel injection system | |
GB884305A (en) | Improvements in or relating to fuel injection systems for internal combustion engines | |
US3720191A (en) | Acceleration enrichment circuitry for electronic fuel system | |
GB1366370A (en) | Fuel injection systems for internal combustion engines |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |