GB839994A - Improvements in or relating to an internal combustion engine charge forming device - Google Patents
Improvements in or relating to an internal combustion engine charge forming deviceInfo
- Publication number
- GB839994A GB839994A GB10151/57A GB1015157A GB839994A GB 839994 A GB839994 A GB 839994A GB 10151/57 A GB10151/57 A GB 10151/57A GB 1015157 A GB1015157 A GB 1015157A GB 839994 A GB839994 A GB 839994A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- chamber
- pressure
- suction
- actuated
- 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
- F02M69/16—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors
- F02M69/18—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air
- F02M69/22—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means being metering valves throttling fuel passages to injectors or by-pass valves throttling overflow passages, the metering valves being actuated by a device responsive to the engine working parameters, e.g. engine load, speed, temperature or quantity of air the device comprising a member movably mounted in the air intake conduit and displaced according to the quantity of air admitted to the engine
-
- 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
- F02M69/16—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors
- F02M69/26—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for metering continuous fuel flow to injectors or means for varying fuel pressure upstream of continuously or intermittently operated injectors the means varying fuel pressure in a fuel by-pass passage, the pressure acting on a throttle valve against the action of metered or throttled fuel pressure for variably throttling fuel flow to injection nozzles, e.g. to keep constant the pressure differential at the metering valve
-
- 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
-
- 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
- F02M69/44—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for supplying extra fuel to the engine on sudden air throttle opening, e.g. at acceleration
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
839,994. Spray carburetters. ACF INDUSTRIES Inc. March 28, 1957 [Jan. 7, 1957], No. 10151/57. Class 7(3) In a fuel supply system having fuel metering needles 23 controlled by a valve 37 which is actuated in accordance with air flow, means are provided to enrich the mixture ratio when the throttle valve 50 is opened. The valve 37 is actuated by a diaphragm 40 controlled by the pressures at points 44, 45, on opposite sides of the valve 37, and the metering needles 23, which control the flow from a chamber A, through pipes 24 to injection nozzles 29 in the intake branches 26a, are actuated from the shaft 36 of the valve 37 through a magnetic clutch 35. On opening of the throttle valve 50 a diaphragm 127, normally urged to the right by the suction transmitted through pipe 130, is released and urged to the left by spring 128 to compress air in a chamber 125 connected to chamber 41 whereby the diaphragm 40 is actuated to open valve 37 and move the needles 23 in a direction to increase the fuel supply. A lean fuel air ratio is maintained under part-throttle conditions by an air bleed 213 into the chamber 42 which reduces the suction in chamber 42 and thereby reduces the opening of valve 37 and needles 23 for a given intake pipe suction. The bleed 213 is controlled by a valve 212 actuated by the suction downstream of the throttle valve 50, the valve chamber 206 being connected by pipe 205 to inlets 202, 203. At small throttle openings the intake pipe suction acting in chamber 210 holds valve 212 open and if the valve 37 is only open a small amount air is bled through openings 202, 203, into chamber 42 to produce a lean mixture. At a predetermined opening of valve 37 the edge of the valve 37 is situated opposite or above the openings 202, 203, and the suction set up reduces or prevents flow of air through the bleed passage 213 and the mixture is enriched. Similarly when throttle valve 50 is opened wider the intake suction decreases and valve 212 closes to produce enrichment of the mixture. The chamber A is supplied by a pump P through a filter 21 and pressure control valve 22 and the diaphragms 28 carrying the fuel injection valves 29 are all loaded at the same pressure by a datum pressure line 56, 58, the pressure in which is maintained constant by a control valve 75 carried by a spring- loaded diaphragm 71, the outlet end of line 58 having a restriction 61, the pressure downstream of which is controlled by a diaphragm actuated valve 167. On closing of the starting switch S and partial depression of the accelerator pedal T, switches 181, 182, close contacts 183-186 to energize an electromagnet which rocks a magnetized lever 172 to lower the pivot 170 of a lever 169, whereby the valve 167 is opened wide causing a large pressure drop in the datum pressure line 58 so that the injection valves 29 are cpened wide to provide a very rich starting mixture, normal conditions being restored when the starting switch S is released. If the engine is flooded, depression of the pedal T to. wide open throttle position causes closing of the contacts 183, 186, 190, 191, which reverses the current through electromagnet 173 whereby the lever 172 is forced upwards to close valve 167, causing pressure to build up in line 58 and close the injection valves 29 so that turning over of the engine clears the cylinders. A bimetallic coil 102 opens valve 37 and metering needles 23 to provide a rich cold-starting mixture, the action of the coil being opposed after starting by a piston 105 actuated by intake pipe suction. A pressure relief valve 76 opens to a point downstream of restriction 61 to relieve any build-up in pressure in the line 58 caused during acceleration by the opening of the valves 29, the escaping fuel acting on diaphragm 164 to open valve 167. In a modification the datum pressure regulator C is situated downstream of the injection nozzles 25 and the pressure relief valve is connected to the pump intake pipe 19. In Fig. 4 the enrichment on acceleration is produced by a diaphragm pump 230 actuated directly from the throttle valve control by a rod 234, the pump acting to increase the suction in chamber 42 during throttle opening and thereby increase the opening of the valve 37 and the fuel metering needles. Specification 807,919 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US632798A US3029800A (en) | 1957-01-07 | 1957-01-07 | Fuel injection system |
Publications (1)
Publication Number | Publication Date |
---|---|
GB839994A true GB839994A (en) | 1960-06-29 |
Family
ID=24536989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB10151/57A Expired GB839994A (en) | 1957-01-07 | 1957-03-28 | Improvements in or relating to an internal combustion engine charge forming device |
Country Status (4)
Country | Link |
---|---|
US (1) | US3029800A (en) |
DE (1) | DE1212780B (en) |
FR (1) | FR1216233A (en) |
GB (1) | GB839994A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3278171A (en) * | 1963-10-28 | 1966-10-11 | Acf Ind Inc | Carburetor |
GB1098825A (en) * | 1964-03-18 | 1968-01-10 | Petrol Injection Ltd | Valve control device |
DE2135824C3 (en) * | 1971-07-17 | 1981-10-29 | Robert Bosch Gmbh, 7000 Stuttgart | Air flow meter with a baffle plate arranged in the intake duct of an internal combustion engine essentially transversely to the intake air flow |
DE2246546C2 (en) * | 1972-09-22 | 1984-12-06 | Robert Bosch Gmbh, 7000 Stuttgart | Fuel metering valve of a fuel injection system for mixture-compressing spark-ignited internal combustion engines |
DE2425021C2 (en) * | 1974-05-24 | 1983-12-22 | Robert Bosch Gmbh, 7000 Stuttgart | Fuel injection system |
US3970063A (en) * | 1974-10-24 | 1976-07-20 | Robert Bosch G.M.B.H. | Fuel injection system |
US4040405A (en) * | 1975-06-10 | 1977-08-09 | Nippon Soken, Inc. | Fuel injection system for internal combustion engine |
JPS53134116A (en) * | 1977-04-27 | 1978-11-22 | Toyota Motor Corp | Fuel feeder for internal combustion engine |
JPS6011213B2 (en) * | 1978-11-30 | 1985-03-23 | トヨタ自動車株式会社 | fuel supply device |
US4509486A (en) * | 1983-04-29 | 1985-04-09 | Swift Joseph E | Continuous flow fuel injection system |
US20090114864A1 (en) * | 2007-11-05 | 2009-05-07 | Eaton Corporation | Failsafe fuel doser solenoid valve using a reversible electrical coil assembly |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE619537C (en) * | 1934-05-23 | 1935-10-03 | Robert Bosch Akt Ges | Device for regulating the amount of fuel in injection internal combustion engines |
US2165447A (en) * | 1936-08-06 | 1939-07-11 | Wright Aeronautical Corp | Pressure metering carburetor |
US2404081A (en) * | 1938-11-30 | 1946-07-16 | Bendix Aviat Corp | Charge forming device |
DE712708C (en) * | 1939-03-14 | 1941-10-23 | Versuchsanstalt Fuer Luftfahrt | Device for controlling the fuel inlet valve in carburetors |
US2447267A (en) * | 1940-01-19 | 1948-08-17 | Bendix Aviat Corp | Fuel feeding system |
US2447261A (en) * | 1940-10-24 | 1948-08-17 | Bendix Aviat Corp | Charge forming device |
US2378036A (en) * | 1941-07-07 | 1945-06-12 | Reggio Ferdinando Carlo | Fuel metering device |
US2343451A (en) * | 1942-04-21 | 1944-03-07 | Phillips Petroleum Co | Variable fuel orifice carburetor |
US2396031A (en) * | 1943-11-01 | 1946-03-05 | George M Holley | Pressure carburetor |
US2673556A (en) * | 1943-11-04 | 1954-03-30 | Reggio Ferdinando Carlo | Engine fuel control |
US2473806A (en) * | 1944-01-10 | 1949-06-21 | Mallory Marion | Engine governor |
US2435902A (en) * | 1947-06-28 | 1948-02-10 | Reggio Ferdinando Carlo | Fuel metering device |
-
1957
- 1957-01-07 US US632798A patent/US3029800A/en not_active Expired - Lifetime
- 1957-03-28 GB GB10151/57A patent/GB839994A/en not_active Expired
- 1957-05-13 DE DEA27137A patent/DE1212780B/en active Pending
- 1957-06-11 FR FR740639A patent/FR1216233A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3029800A (en) | 1962-04-17 |
FR1216233A (en) | 1960-04-22 |
DE1212780B (en) | 1966-03-17 |
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