GB1450579A - Fuel supply systems for internal combustion engines - Google Patents

Fuel supply systems for internal combustion engines

Info

Publication number
GB1450579A
GB1450579A GB4195173A GB4195173A GB1450579A GB 1450579 A GB1450579 A GB 1450579A GB 4195173 A GB4195173 A GB 4195173A GB 4195173 A GB4195173 A GB 4195173A GB 1450579 A GB1450579 A GB 1450579A
Authority
GB
United Kingdom
Prior art keywords
spring
valve
fuel
diaphragm
force
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
GB4195173A
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 GB1450579A publication Critical patent/GB1450579A/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
    • F02M69/16—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
    • F02M69/36—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)
  • Fuel-Injection Apparatus (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Temperature-Responsive Valves (AREA)

Abstract

1450579 Regulating IC engine fuel injection ROBERT BOSCH GmbH 6 Sept 1973 [7 Sept 1972] 41951/73 Heading F1B [Also in Division F2] The pressure of a fluid, e.g. fuel, providing the restoring force against displacement of an air-flow measuring element 4, which moves the slide valve 12 of a fuel distributer 8 through a lever 10, is controlled by a valve 53 having a control spring 59. The force of the spring 59 is acted against by a bimetallic spring 64 connected to a heat-conducting curved piece of metal 68 which is to be heated by an electric heating element 69 when the engine is started. The diaphragm valve 58 controls the pressure acting on the end-face 13 of the valve 12 and during warming up of the spring 64 the spring acts to reduce the force of the spring 59 acting through the pin 60 on the diaphragm valve such that the richness of the mixture supplied to the engine is appropriate. A heat insulating bush 66 connects the spring 64 and piece of metal 68 to the locating pin 65. A resistor 74 is included in the circuit of the heater 69 below a certain ambient temperature at which the bi-metallic strip 73 connects the heater direct to the earth connection 76. The pressure acting on the end-face 13 is further controlled by a valve 32 having a valve diaphragm 33 loaded by a spring force which is adjustable by a cam 38. The cam 38 is rotated with the throttle valve 7 and moved axially by a diaphragm 41 loaded by a spring 44 and subject to the pressure downstream of the throttle valve. The valve 12 controls metering slits 24 connected by conduits 25 to intake manifold fuel injectors and fuel is supplied to the distributer 8 by an electricallydriven fuel pump 16. Reference has been directed by the Comptroller to Specification 1336606.
GB4195173A 1972-09-07 1973-09-06 Fuel supply systems for internal combustion engines Expired GB1450579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2243921A DE2243921A1 (en) 1972-09-07 1972-09-07 FUEL SUPPLY SYSTEM

Publications (1)

Publication Number Publication Date
GB1450579A true GB1450579A (en) 1976-09-22

Family

ID=5855709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4195173A Expired GB1450579A (en) 1972-09-07 1973-09-06 Fuel supply systems for internal combustion engines

Country Status (4)

Country Link
US (1) US3835828A (en)
DE (1) DE2243921A1 (en)
FR (1) FR2163279A5 (en)
GB (1) GB1450579A (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3974809A (en) * 1973-03-16 1976-08-17 Robert Bosch G.M.B.H. Fuel injection system for spark plug-ignited internal combustion engines with compression of the air-fuel mixture
DE2327295C3 (en) * 1973-05-29 1978-08-31 Robert Bosch Gmbh, 7000 Stuttgart Fuel supply system for internal combustion engines
US3951120A (en) * 1973-08-10 1976-04-20 Robert Bosch G.M.B.H. Diaphragm-controlled pressure control valve assembly
US4100904A (en) * 1973-09-28 1978-07-18 Robert Bosch Gmbh Fuel injection system
US3963005A (en) * 1973-10-12 1976-06-15 Robert Bosch G.M.B.H. Fuel supply system
DE2403276C3 (en) * 1974-01-24 1981-03-12 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection system
DE2423109A1 (en) * 1974-05-13 1975-12-04 Bosch Gmbh Robert FUEL INJECTION SYSTEM
DE2425021C2 (en) * 1974-05-24 1983-12-22 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection system
DE2444800A1 (en) * 1974-09-19 1976-04-08 Volkswagenwerk Ag FUEL INJECTION DEVICE FOR MIXTURE COMPRESSING, EXTERNAL IGNITION ENGINE
DE2502153A1 (en) * 1975-01-21 1976-07-22 Bosch Gmbh Robert FUEL INJECTION SYSTEM
DE2514483A1 (en) * 1975-04-03 1976-10-21 Daimler Benz Ag COMBUSTION ENGINE WITH EXTERNAL IGNITION
US4112900A (en) * 1975-05-07 1978-09-12 Robert Bosch Gmbh Fuel injection system
DE2552991A1 (en) * 1975-11-26 1977-06-08 Daimler Benz Ag SPEED CONTROLLER FOR AN INJECTION PUMP ON AIR-COMPRESSING INJECTION COMBUSTION MACHINES
DE2623122A1 (en) * 1976-05-22 1977-12-01 Bosch Gmbh Robert PRESSURE REGULATING VALVE FOR A FUEL INJECTION SYSTEM
JPS5438440A (en) * 1977-08-30 1979-03-23 Toyota Motor Corp Air fuel ratio controller for internal combustion engine fuel feeder
DE2757248A1 (en) * 1977-12-22 1979-06-28 Porsche Ag FUEL INJECTION SYSTEM FOR MIXED COMPRESSING, EXTERNAL IGNITION ENGINEERING

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS5012050B1 (en) * 1970-08-20 1975-05-08
GB1363739A (en) * 1971-01-11 1974-08-14 Bosch Gmbh Robert Fuel injection systems
US3739762A (en) * 1972-01-24 1973-06-19 Petrol Injection Ltd Fuel injection systems

Also Published As

Publication number Publication date
FR2163279A5 (en) 1973-07-20
US3835828A (en) 1974-09-17
DE2243921A1 (en) 1974-03-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees