GB1482594A - Electronically controlled fuel injection system - Google Patents
Electronically controlled fuel injection systemInfo
- Publication number
- GB1482594A GB1482594A GB32282/74A GB3228274A GB1482594A GB 1482594 A GB1482594 A GB 1482594A GB 32282/74 A GB32282/74 A GB 32282/74A GB 3228274 A GB3228274 A GB 3228274A GB 1482594 A GB1482594 A GB 1482594A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinders
- pressure
- fuel
- flop
- flip
- 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
- F02D41/30—Controlling fuel injection
- F02D41/3082—Control of electrical fuel pumps
-
- 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
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1473—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation method
- F02D41/1475—Regulating the air fuel ratio at a value other than stoichiometry
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
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)
- Fuel-Injection Apparatus (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
1482594 Regulating IC engines NIPPONDENSO CO Ltd 22 July 1974 [11 Aug 1973] 32282/74 Heading F1B [Also in Division G3] I.C. engine fuel injection valves are opened for a time electronically determined in response at least to the oxygen content in the exhaust of a selected number of cylinders which are supplied via a first fuel pressure regulator operating at a different pressure to that of a second pressure regulator supplying the remaining cylinders. It is explained that the oxygen detector is sensitive over a very limited range of the air/fuel ratio Fig. 2, (not shown), which is richer than is required; by using this in a proportion of the cylinders only and providing a leaner mixture for the remainder the average ratio can be equal to the required value. In the embodiment the left hand cylinder only is selected. The oxygen content of its exhaust is measured at 19 and used, together with the signal from an inlet manifold pressure detector 23, to control the open time of the injector valves 2 and 3, for all the cylinders.(The right hand valve is shown in detail). The left hand cylinder only is supplied via fuel pressure regulator 9, the pressure being determined by the inlet manifold pressure and the rate of a spring; the remaining cylinders are supplied via a similar regulator 11 but which has a weaker spring and so provides a lower pressure. The regulators are of the type in which the injectors are supplied from the inlet chamber and a diaphragm variably obstructs an orifice through which excess fuel is returned to a supply tank. In an alternative arrangement, Fig. 6 (not shown), the two regulators are in series, supplied from a single pump instead of the two 7, 8, the excess from the first supplying the second. The electronic controller 1, also Fig. 4 (not shown), comprises logic elements arranged as a flip-flop which is set to "0" by pulses from a crank-shaft switch 25, whereupon a constant voltage is integrated until its value exceeds that of the combined voltage from sensors 19 and 23, re-setting the flip-flop to "1". A driver circuit provides an output to the electromagnetic injector valves while the flip-flop is in the "0" state.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48090299A JPS5226285B2 (en) | 1973-08-11 | 1973-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1482594A true GB1482594A (en) | 1977-08-10 |
Family
ID=13994646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32282/74A Expired GB1482594A (en) | 1973-08-11 | 1974-07-22 | Electronically controlled fuel injection system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3910241A (en) |
| JP (1) | JPS5226285B2 (en) |
| DE (1) | DE2431559C3 (en) |
| GB (1) | GB1482594A (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5135812A (en) * | 1974-09-20 | 1976-03-26 | Nissan Motor | Nainenkikan no haikitaisakusochi |
| FR2286285A1 (en) * | 1974-09-26 | 1976-04-23 | Peugeot & Renault | ELECTROPNEUMATIC DEVICE FOR REGULATING AN AUXILIARY AIR INJECTION TO THE INTAKE OF INTERNAL COMBUSTION ENGINES |
| GB1532959A (en) * | 1975-11-06 | 1978-11-22 | Lucas Electrical Ltd | Fuel injection system for an internal combustion engine |
| GB1518763A (en) * | 1975-03-07 | 1978-07-26 | Nissan Motor | Closed loop air fuel ratio control system using exhaust composition sensor |
| JPS521336A (en) * | 1975-06-24 | 1977-01-07 | Mitsubishi Motors Corp | Multi-cylinder engine |
| JPS52148729A (en) * | 1976-06-03 | 1977-12-10 | Ntn Toyo Bearing Co Ltd | Fuel injector |
| JPH0374569A (en) * | 1989-08-15 | 1991-03-29 | Fuji Heavy Ind Ltd | Fuel injection control device for gasoline engine |
| DE3931391C1 (en) * | 1989-09-20 | 1991-02-07 | H.J.S. Fahrzeugteile-Fabrik Gmbh & Co, 5750 Menden, De | |
| DE4001334A1 (en) * | 1989-11-04 | 1991-05-08 | Gutmann Messtechnik Ag | RETROFIT KIT FOR OTTO ENGINES |
| JPH0588605U (en) * | 1991-07-10 | 1993-12-03 | 石垣機工株式会社 | Filter press filter media |
| US5549096A (en) * | 1995-06-08 | 1996-08-27 | Consolidated Natural Gas Service Company, Inc. | Load control of a spare ignited engine without throttling and method of operation |
| SG138496A1 (en) * | 2006-06-28 | 2008-01-28 | Yao San Lin | Petrol saving structure of a motor vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2116097B2 (en) * | 1971-04-02 | 1981-01-29 | Bosch Gmbh Robert | Device for regulating the air ratio λ of the fuel-air mixture fed to an internal combustion engine |
| NL156787B (en) * | 1969-03-22 | 1978-05-16 | Philips Nv | DEVICE FOR THE AUTOMATIC REGULATION OF THE AIR-FUEL RATIO OF THE MIXTURE FEEDED TO AN COMBUSTION ENGINE. |
| US3738341A (en) * | 1969-03-22 | 1973-06-12 | Philips Corp | Device for controlling the air-fuel ratio {80 {11 in a combustion engine |
| US3576182A (en) * | 1969-07-09 | 1971-04-27 | Bendix Corp | Combustion engine fuel injection apparatus having fluidic control means |
| FR2151627A5 (en) * | 1971-09-07 | 1973-04-20 | Sibe | |
| DE2216705C3 (en) * | 1972-04-07 | 1978-06-08 | Robert Bosch Gmbh, 7000 Stuttgart | Method and device for detoxifying the exhaust gases of an internal combustion engine |
| JPS5212853B2 (en) * | 1972-09-11 | 1977-04-09 |
-
1973
- 1973-08-11 JP JP48090299A patent/JPS5226285B2/ja not_active Expired
-
1974
- 1974-07-01 DE DE2431559A patent/DE2431559C3/en not_active Expired
- 1974-07-22 GB GB32282/74A patent/GB1482594A/en not_active Expired
- 1974-08-05 US US495125A patent/US3910241A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5226285B2 (en) | 1977-07-13 |
| DE2431559B2 (en) | 1981-06-11 |
| DE2431559C3 (en) | 1982-02-11 |
| JPS5037925A (en) | 1975-04-09 |
| US3910241A (en) | 1975-10-07 |
| DE2431559A1 (en) | 1975-07-03 |
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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 |