GB1458503A - - Google Patents
Info
- Publication number
- GB1458503A GB1458503A GB56973*[A GB56973A GB1458503A GB 1458503 A GB1458503 A GB 1458503A GB 56973 A GB56973 A GB 56973A GB 1458503 A GB1458503 A GB 1458503A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fuel
- diaphragm
- engine
- injectors
- valve
- 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
- F02D3/00—Controlling low-pressure fuel injection, i.e. where the fuel-air mixture containing fuel thus injected will be substantially compressed by the compression stroke of the engine, by means other than controlling only an injection pump
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
1458503 Controlling fuel injection systems PETROL INJECTION Ltd and HE JACKSON 31 Dec 1973 [4 Jan 1973] 569/73 Heading F1B A fuel injection system for an I.C. engine comprises supply and return conduits 3 and 7, at least one injector 5 connected to receive fuel from the supply conduit and a fuel pressurizing device (pump 2) to supply fuel to the supply conduit, the return conduit 7 including a valve closure member 402 resiliently biased towards a closed position and movable against the bias by pressure in the return conduit and means (diaphragm 407 and chamber 408) connectible to the engine intake manifold and operable to increase the resilient bias in response to a drop in manifold vacuum below a predetermined value. Chambers 408, 409 are connected via conduits 410, 411 to the engine inlet manifold and a point immediately down- stream of the air cleaner, respectively. Under partload, the intake manifold vacuum raises diaphragm 407 and holds rod 412 out of engagement with diaphragm 402. The characteristics of a spring 406 are such that the biasing force it exerts is substantially constant over the range of positions of diaphragm 402, so that a substantially constant fuel pressure is maintained upstream of the relief valve 6 while rod 412 remains clear of the diaphragm 402. Thus the amount of fuel issuing from injectors 5 depends only on the period for which they are open. When the throttle valve 12 is nearing its fully open position, the low inlet manifold vacuum is insufficient to keep rod 412 clear of diaphragm 402, so that the biasing force on the latter is increased, thereby increasing fuel pressure upstream of the valve 6 ensuring increased fuel injection from the injectors 5. The length of time for which injectors 5 discharge fuel is determined by the engine air intake flow-rate by electrical pulses produced by a switching unit 8 controlled by a timing switch 14 as described in Specification 1363631. The control pulse length may be varied in response to engine conditions e.g. intake manifold temperature and cooling water temperature by valves 400, 401 as described in that Specification.
Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB56973*[A GB1458503A (en) | 1973-01-04 | 1973-01-04 | |
SE7317587A SE404814B (en) | 1972-10-19 | 1973-10-16 | FUEL INJECTION DEVICE FOR COMBUSTION ENGINES |
DE2363010A DE2363010A1 (en) | 1973-01-04 | 1973-12-19 | FUEL INJECTION SYSTEM FOR A COMBUSTION ENGINE |
CA188,895A CA994624A (en) | 1973-01-04 | 1973-12-24 | Fuel injection systems for internal combustion engines |
US428411A US3916856A (en) | 1973-01-04 | 1973-12-26 | Fuel injection systems for internal combustion engines |
AU63965/73A AU479067B2 (en) | 1973-01-04 | 1973-12-27 | Fuel injection systems for internal combustion engine |
SE7317587-9A SE404714B (en) | 1973-01-04 | 1973-12-28 | FUEL INJECTION DEVICE FOR COMBUSTION ENGINES |
JP744717A JPS5211366B2 (en) | 1973-01-04 | 1973-12-29 | |
IT54683/73A IT1000411B (en) | 1973-01-04 | 1973-12-31 | IMPROVEMENT IN FUEL INJECTION SYSTEMS FOR INTERNAL COMBUSTION ENGINES |
FR7400112A FR2213415A1 (en) | 1973-01-04 | 1974-01-03 | |
BR32/74A BR7400032D0 (en) | 1973-01-04 | 1974-01-04 | INTERNAL COMBUSTION FUEL INJECTION SYSTEM FOR MACHINES OR ENGINE |
DD175834A DD113258A5 (en) | 1973-01-04 | 1974-01-04 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB56973*[A GB1458503A (en) | 1973-01-04 | 1973-01-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1458503A true GB1458503A (en) | 1976-12-15 |
Family
ID=9706690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB56973*[A Expired GB1458503A (en) | 1972-10-19 | 1973-01-04 |
Country Status (10)
Country | Link |
---|---|
US (1) | US3916856A (en) |
JP (1) | JPS5211366B2 (en) |
BR (1) | BR7400032D0 (en) |
CA (1) | CA994624A (en) |
DD (1) | DD113258A5 (en) |
DE (1) | DE2363010A1 (en) |
FR (1) | FR2213415A1 (en) |
GB (1) | GB1458503A (en) |
IT (1) | IT1000411B (en) |
SE (1) | SE404714B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2417019A1 (en) * | 1978-02-14 | 1979-09-07 | Nippon Denso Co | FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES |
JP3838452B2 (en) * | 1996-12-17 | 2006-10-25 | 本田技研工業株式会社 | Cooling water passage structure of water-cooled internal combustion engine for small vehicles such as motorcycles |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2456605A (en) * | 1945-08-06 | 1948-12-14 | Bendix Aviat Corp | Fuel supply system |
US2681647A (en) * | 1949-10-07 | 1954-06-22 | Rudolf L Wille | Control of internal-combustion engines |
US2655907A (en) * | 1950-05-05 | 1953-10-20 | Lucas Ltd Joseph | Apparatus for controlling the injection of liquid fuel to internalcombustion engines |
US2706976A (en) * | 1951-03-07 | 1955-04-26 | Moto Guzzi Societa Per Azioni | Carburator and carburation system for internal combustion engines |
US2727504A (en) * | 1953-10-02 | 1955-12-20 | Renault | Fuel injection systems |
GB1363631A (en) * | 1970-05-26 | 1974-08-14 | Petrol Injection Ltd | Fuel injection system for internal combustion engines |
GB1330181A (en) * | 1970-09-25 | 1973-09-12 | Petrol Injection Ltd | Fuel injection nozzles |
-
1973
- 1973-01-04 GB GB56973*[A patent/GB1458503A/en not_active Expired
- 1973-12-19 DE DE2363010A patent/DE2363010A1/en active Pending
- 1973-12-24 CA CA188,895A patent/CA994624A/en not_active Expired
- 1973-12-26 US US428411A patent/US3916856A/en not_active Expired - Lifetime
- 1973-12-28 SE SE7317587-9A patent/SE404714B/en unknown
- 1973-12-29 JP JP744717A patent/JPS5211366B2/ja not_active Expired
- 1973-12-31 IT IT54683/73A patent/IT1000411B/en active
-
1974
- 1974-01-03 FR FR7400112A patent/FR2213415A1/fr not_active Withdrawn
- 1974-01-04 BR BR32/74A patent/BR7400032D0/en unknown
- 1974-01-04 DD DD175834A patent/DD113258A5/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CA994624A (en) | 1976-08-10 |
BR7400032D0 (en) | 1974-08-15 |
JPS4997128A (en) | 1974-09-13 |
IT1000411B (en) | 1976-03-30 |
AU6396573A (en) | 1975-07-03 |
SE404714B (en) | 1978-10-23 |
DD113258A5 (en) | 1975-05-20 |
FR2213415A1 (en) | 1974-08-02 |
JPS5211366B2 (en) | 1977-03-30 |
US3916856A (en) | 1975-11-04 |
DE2363010A1 (en) | 1974-07-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLE | Entries relating assignments, transmissions, licences in the register of patents | ||
PCNP | Patent ceased through non-payment of renewal fee |