GB1393280A - Fuel injection systems - Google Patents

Fuel injection systems

Info

Publication number
GB1393280A
GB1393280A GB2306572A GB2306572A GB1393280A GB 1393280 A GB1393280 A GB 1393280A GB 2306572 A GB2306572 A GB 2306572A GB 2306572 A GB2306572 A GB 2306572A GB 1393280 A GB1393280 A GB 1393280A
Authority
GB
United Kingdom
Prior art keywords
valve
switch
engine
open
pass
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
Application number
GB2306572A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1393280A publication Critical patent/GB1393280A/en
Expired legal-status Critical Current

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
    • F02M69/28—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for cutting-out the fuel supply to the engine or to main injectors during certain operating periods, e.g. deceleration
    • 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
    • F02M69/30—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
    • F02M69/32—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 with an air by-pass around the air throttle valve or with an auxiliary air passage, e.g. with a variably controlled valve therein
    • 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
    • F02M69/38—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 fuel pressure, e.g. by varying fuel pressure in the control chambers of the fuel metering device
    • F02M69/386—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 fuel pressure, e.g. by varying fuel pressure in the control chambers of the fuel metering device variably controlling the pressure of the fuel by-passing the metering valves, e.g. by valves responsive to signals of temperature or oxygen sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

1393280 Spray carburetters ROBERT BOSCH GmbH 17 May 1972 [18 May 1971] 23065/72 Heading F1B A fuel injection system as claimed in Specification 1366606 also includes a by-pass interconnecting portions of the inlet manifold upstream and downstream of the measuring element, said by-pass being controlled by a valve. A by-pass passage 60 around the gauging element 2, contains a stop valve 61, the valve member 62 of which is biased by a spring 63 to the open position and which is moved to the closed position by energizing a solenoid 64 from a battery B. The circuit is broken by a switch 67, when the vehicle is driving the engine, the moving member of the switch being connected to a diaphragm 69, the space 71 above the diaphragm being connected by a tube 72 to a point immediately downstream of the throttle valve 7. The circuit also includes a switch 66 which is open when the ignition is switched "OFF". The valve 61 may also be actuated in dependence on the position of the throttle valve and upon the speed of the engine, so that the valve is open when the throttle is closed and when the engine exceeds a pre-determined speed i.e. the throttle valve reaches a specific position.
GB2306572A 1971-05-18 1972-05-17 Fuel injection systems Expired GB1393280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2124553A DE2124553C3 (en) 1971-05-18 1971-05-18 Fuel injection system for mixture-compressing, externally ignited internal combustion engines with continuous injection into the intake manifold

Publications (1)

Publication Number Publication Date
GB1393280A true GB1393280A (en) 1975-05-07

Family

ID=5808195

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2306572A Expired GB1393280A (en) 1971-05-18 1972-05-17 Fuel injection systems

Country Status (5)

Country Link
US (1) US3817229A (en)
JP (1) JPS569652A (en)
DE (1) DE2124553C3 (en)
FR (1) FR2151810A6 (en)
GB (1) GB1393280A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333451A1 (en) * 1973-06-30 1975-01-23 Bosch Gmbh Robert FUEL INJECTION SYSTEM FOR MIXED COMPRESSING, EXTERNAL IGNITION STRATIFIC CHARGE COMBUSTION MACHINES
DE2349631C2 (en) * 1973-10-03 1984-10-04 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection system
DE2357263C2 (en) * 1973-11-16 1975-03-20 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection system for internal combustion engines
DE2422520C2 (en) * 1974-05-09 1983-11-10 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection system
DE2542681C2 (en) * 1975-09-25 1983-04-14 Daimler-Benz Ag, 7000 Stuttgart Fission gas generation for internal combustion engines
DE2730386A1 (en) * 1977-07-06 1979-01-18 Audi Nsu Auto Union Ag FUEL INJECTION SYSTEM FOR VEHICLE COMBUSTION MACHINES
DE3239052C2 (en) * 1982-10-22 1986-08-21 Audi AG, 8070 Ingolstadt Method for limiting the maximum speed of a mixture-compressing, externally ignited vehicle internal combustion engine
US5337715A (en) * 1992-11-13 1994-08-16 Ford Motor Company Engine deceleration intake air flow reduction and fuel shut-off control
US6474297B1 (en) * 2001-05-31 2002-11-05 Lai Ming De Fuel breaking/saving device for cars during coasting

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB704195A (en) * 1951-10-02 1954-02-17 Alfred Robert Hunter Improvements in carburettors for internal combustion engines
US3460814A (en) * 1966-08-12 1969-08-12 Zenith Carburetter Co Ltd Fuel-air mixture intake systems for internal combustion engines
US3371914A (en) * 1967-03-20 1968-03-05 Walker Brooks Fuel feed system
US3482558A (en) * 1968-01-12 1969-12-09 Acf Ind Inc Fuel injection system
US3703888A (en) * 1969-12-01 1972-11-28 Bosch Gmbh Robert Device for the fuel quantity control in response to operational variables of an internal combustion engine
BE759677A (en) * 1969-12-01 1971-04-30 Bosch Gmbh Robert INSTALLATION OF CONTINUOUS INJECTION OF FUEL IN THE SUCTION TUBE, ESPECIALLY OF INTERNAL COMBUSTION ENGINES WITH MIXTURE COMPRESSION AND IGNITION DEVICE CONTROLLED FROM THE EXTERNAL
JPS50220B1 (en) * 1970-01-21 1975-01-07

Also Published As

Publication number Publication date
JPS569652A (en) 1981-01-31
DE2124553C3 (en) 1979-04-05
DE2124553B2 (en) 1978-07-20
DE2124553A1 (en) 1972-11-30
JPS5627702B2 (en) 1981-06-26
US3817229A (en) 1974-06-18
FR2151810A6 (en) 1973-04-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]