ES402855A1 - Fuel feed devices for internal combustion engines - Google Patents
Fuel feed devices for internal combustion enginesInfo
- Publication number
- ES402855A1 ES402855A1 ES402855A ES402855A ES402855A1 ES 402855 A1 ES402855 A1 ES 402855A1 ES 402855 A ES402855 A ES 402855A ES 402855 A ES402855 A ES 402855A ES 402855 A1 ES402855 A1 ES 402855A1
- Authority
- ES
- Spain
- Prior art keywords
- pressure
- action
- regulator
- under
- hand
- 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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/30—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines
- F02M69/36—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages
- F02M69/42—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines having an enrichment mechanism modifying fuel flow to injectors, e.g. by acting on the fuel metering device or on the valves throttling fuel passages to injection nozzles or overflow passages using other means than variable fluid pressure, e.g. acting on the fuel metering device mechanically or electrically
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)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Improvements in fuel supply devices for internal combustion engines, which have, on the one hand, in their intake duct, upstream of a main throttle member actuated by the driver, an auxiliary throttle member that opens automatically and progressively as the air flow in said duct increases, on the other hand, a source of fuel under pressure whose drive circuit, which empties into the part of the intake duct located downstream of the main throttle member, is controlled by at least by a valve actuated by an electromagnet and, finally, by a dosing system that, provided with a rotating member capable of being moved with a continuous rotational movement, is capable of sending this electromagnet at least one signal of excitation for a fraction of each turn of said rotary member which is adjusted by this and system, this system being arranged so that said fraction increases as the opening of the auxiliary throttle member increases and vice versa, said fuel source under pressure being constituted by a fuel pump in whose drive circuit a first regulator of pressure comprising a discharge valve that tends to open towards a discharge space under the action of the pump's delivery pressure and to close under the action of the depression that prevails in the section of the intake duct between its two throttling, characterized in that the pump drive circuit (13) has, upstream of the first pressure regulator (17), a second pressure regulator (21) comprising, on the one hand, a discharge valve (27) which tends to open towards the first regulator (17) under the action of the impulsion pressure of the pump (13) and to close under the action of means elastics (29) and, on the other hand, a channel (37) that surrounds this latter discharge valve (27) and controlled by means (38-43, 51) subjected in such a way to the command of the engine starter that this channel (37) is closed when the starter is in action, thanks to which the second regulator (21) then intervenes only to increase the injection pressure. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7132217A FR2151627A5 (en) | 1971-09-07 | 1971-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES402855A1 true ES402855A1 (en) | 1975-04-16 |
Family
ID=9082591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES402855A Expired ES402855A1 (en) | 1971-09-07 | 1972-04-25 | Fuel feed devices for internal combustion engines |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5025975B2 (en) |
BR (1) | BR7203704D0 (en) |
DE (1) | DE2220269C3 (en) |
ES (1) | ES402855A1 (en) |
FR (1) | FR2151627A5 (en) |
GB (1) | GB1355921A (en) |
IT (1) | IT957783B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5226285B2 (en) * | 1973-08-11 | 1977-07-13 | ||
IT1021083B (en) * | 1974-07-16 | 1978-01-30 | Alfa Romeo Spa | ELECTRONIC INDIRECT PETROL INJECTION SYSTEM FOR OTTO CYCLE ENGINES |
JPS52148729A (en) * | 1976-06-03 | 1977-12-10 | Ntn Toyo Bearing Co Ltd | Fuel injector |
JPS54130369A (en) * | 1978-03-29 | 1979-10-09 | Nippon Carbide Ind Co Ltd | Vermin eliminator and method of eliminating vermin using the same |
US4404944A (en) * | 1980-08-07 | 1983-09-20 | Nissan Motor Co., Ltd. | Fuel supply system for an injection-type internal combustion engine |
-
1971
- 1971-09-07 FR FR7132217A patent/FR2151627A5/fr not_active Expired
-
1972
- 1972-04-25 ES ES402855A patent/ES402855A1/en not_active Expired
- 1972-04-25 DE DE19722220269 patent/DE2220269C3/en not_active Expired
- 1972-05-05 IT IT5005972A patent/IT957783B/en active
- 1972-06-09 BR BR370472A patent/BR7203704D0/en unknown
- 1972-06-21 GB GB2898272A patent/GB1355921A/en not_active Expired
- 1972-08-17 JP JP47082433A patent/JPS5025975B2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2220269C3 (en) | 1974-08-29 |
IT957783B (en) | 1973-10-20 |
FR2151627A5 (en) | 1973-04-20 |
BR7203704D0 (en) | 1973-08-30 |
DE2220269A1 (en) | 1973-03-15 |
GB1355921A (en) | 1974-06-12 |
DE2220269B2 (en) | 1974-01-31 |
JPS4835230A (en) | 1973-05-24 |
JPS5025975B2 (en) | 1975-08-28 |
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