GB1283860A - Improvements in fuel injection systems - Google Patents

Improvements in fuel injection systems

Info

Publication number
GB1283860A
GB1283860A GB56431/70A GB5643170A GB1283860A GB 1283860 A GB1283860 A GB 1283860A GB 56431/70 A GB56431/70 A GB 56431/70A GB 5643170 A GB5643170 A GB 5643170A GB 1283860 A GB1283860 A GB 1283860A
Authority
GB
United Kingdom
Prior art keywords
force
magnet
spool
fuel
armature
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
GB56431/70A
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
Priority claimed from DE19691960146 external-priority patent/DE1960146C/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority claimed from DE19712133434 external-priority patent/DE2133434C3/en
Publication of GB1283860A publication Critical patent/GB1283860A/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
    • F02M69/30—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
    • F02D41/1454—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the characteristics being an oxygen content or concentration or the air-fuel ratio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1484—Output circuit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F02D41/182—Circuit arrangements for generating control signals by measuring intake air flow for the control of a fuel injection device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/09—Other ways of controlling

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)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

1283860 Spray carburetters ROBERT BOSCH GmbH 27 Nov 1970 [1 Dec 1969] 56431/70 Heading F1B Fuel injection system for an I. C. engine having continuous injection into the manifold and separate ignition comprises a butterfly throttle valve and a measuring element arranged in series in the intake manifold, the measuring element being displaced in proportion to the air-flow through the manifold and actuating the movable part of a fuel valve to meter a quantity of proportional to the air-flow, the measuring element being displaced against a normally constant return force and there being an electromagnet, the field strength of which is variable in dependence upon engine characteristics, and which acts to vary the return force. Combustion air is drawn through a filter 2 and as it enters a divergent part 3 of the induction pipe, acts on a plate 4 mounted on a lever 9. The air passes through a flexible section 5 of the induction pipe in a rigid section 6 containing a butterfly throttle valve 7. The lever 9 is pivoted at 10 and has a lug 11 which actuates a valve spool 12 controlling the flow of fuel pumped through a line 19 to passages 26 and hence to the injection nozzles. The lever acts against the force of a spring 28 having a flat load/deflection characteristic which can be modified by the effect of an electromagnet, the field strength of which is dependent upon engine conditions e. g. load and temperature. The electromagnet comprises a coil 30 and an armature 29 which transmits the force of the spring 28 to the spool 12. To ensure that the force of the magnet does not vary due to its movement, the end of the armature is conical and a soft-iron core 31 has a corresponding conical aperture. In a modification, Fig. 2 (not shown), the normally constant return force is produced by the pressure of the fuel acting on the end of the spool. The magnet armature is formed as a sleeve which carries a winding externally and is surrounded by an annular soft-iron core, and a contiguous permanent magnet. A soft iron plate which contacts the face of the magnet remote from the annular core, carries a pin which projects into the bore of the magnet sleeve. A pin projecting axially from one end of the sleeve engages the end of the spool so that the force produced by the magnet augments the spring force.
GB56431/70A 1969-12-01 1970-11-27 Improvements in fuel injection systems Expired GB1283860A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19691960146 DE1960146C (en) 1969-12-01 Fuel injection system with continuous injection into the intake manifold of mixture-compressing foreign-ignited internal combustion engines
DE19712133434 DE2133434C3 (en) 1969-12-01 1971-07-05 Fuel injection system with continuous injection into the intake manifold of mixture-compressing spark-ignited internal combustion engines
DE19722203507 DE2203507A1 (en) 1969-12-01 1972-01-26 FUEL INJECTION SYSTEM

Publications (1)

Publication Number Publication Date
GB1283860A true GB1283860A (en) 1972-08-02

Family

ID=42077836

Family Applications (2)

Application Number Title Priority Date Filing Date
GB56431/70A Expired GB1283860A (en) 1969-12-01 1970-11-27 Improvements in fuel injection systems
GB383173A Expired GB1411051A (en) 1969-12-01 1973-01-25 Fuel injection systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB383173A Expired GB1411051A (en) 1969-12-01 1973-01-25 Fuel injection systems

Country Status (10)

Country Link
US (1) US3703888A (en)
JP (1) JPS4946671B1 (en)
AT (1) AT307809B (en)
BE (1) BE759679A (en)
DE (1) DE2203507A1 (en)
ES (1) ES386028A1 (en)
FR (1) FR2072531A5 (en)
GB (2) GB1283860A (en)
NL (1) NL7017465A (en)
SE (1) SE362119B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080581A (en) * 2010-08-10 2011-06-01 深圳市海利科科技开发有限公司 Screw expansion power machine and control system thereof

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124553C3 (en) * 1971-05-18 1979-04-05 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection system for mixture-compressing, externally ignited internal combustion engines with continuous injection into the intake manifold
JPS553528B1 (en) * 1971-07-05 1980-01-25
AT313646B (en) * 1971-07-09 1974-02-25 Johannes Zeyns Dr Ing Device on internal combustion engines with a device for continuously measuring the quantities of combustion air drawn in and for measuring and evenly distributing the fuel quantities to be allocated to several injection valves assigned to several cylinders
DE2203018C3 (en) * 1972-01-22 1974-11-28 Bosch Gmbh Robert Fuel injection system
DE2243925A1 (en) * 1972-09-07 1974-03-14 Bosch Gmbh Robert FUEL METERING SYSTEM FOR MIXED COMPRESSING, EXTERNAL IGNITION COMBUSTION MACHINES
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
DE2246547C2 (en) * 1972-09-22 1984-10-04 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection system for mixture-compressing internal combustion engines
FR2239600B1 (en) * 1973-08-01 1976-06-18 Sibe
US3915138A (en) * 1973-09-22 1975-10-28 Bosch Gmbh Robert Fuel injection system
DE2348859A1 (en) * 1973-09-28 1975-04-10 Bosch Gmbh Robert FUEL INJECTION SYSTEM
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
US3993032A (en) * 1974-05-13 1976-11-23 Robert Bosch G.M.B.H. Fuel injection systems
DE2547645C3 (en) * 1975-10-24 1978-11-23 Robert Bosch Gmbh, 7000 Stuttgart Fuel injection system
DE2621555A1 (en) * 1976-05-14 1977-12-01 Bosch Gmbh Robert FUEL INJECTION SYSTEM
DE2656538C2 (en) * 1976-12-14 1985-07-11 Audi AG, 8070 Ingolstadt Fuel injection system
US4208358A (en) * 1977-05-27 1980-06-17 General Motors Corporation Carburetor and method of calibration
JPS5412464U (en) * 1977-06-28 1979-01-26
US4178332A (en) * 1978-01-11 1979-12-11 General Motors Corporation Carburetor and method of calibration
US4175103A (en) * 1978-04-17 1979-11-20 General Motors Corporation Carburetor
US4217314A (en) * 1978-06-26 1980-08-12 General Motors Corporation Carburetor and method of operation
JPS5841232A (en) * 1981-09-02 1983-03-10 Hitachi Ltd Control apparatus for fuel injection pump of the type capable of changing number of operative cylinders
US5341785A (en) * 1992-07-20 1994-08-30 Echlin, Inc. Fuel delivery system for internal combustion engines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB594494A (en) * 1945-06-12 1947-11-12 Richard Garratt Ellis Improvements in variable jet carburettors for variable speed internal combustion engines
GB515040A (en) * 1938-02-23 1939-11-24 Self Priming Pump And Engineer Improvements in and relating to carburettors for internal combustion engines
US2600368A (en) * 1945-06-02 1952-06-10 Bendix Aviat Corp Charge forming device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102080581A (en) * 2010-08-10 2011-06-01 深圳市海利科科技开发有限公司 Screw expansion power machine and control system thereof
CN102080581B (en) * 2010-08-10 2013-10-16 深圳市海利科科技开发有限公司 Control system for controlling screw expansion power machine

Also Published As

Publication number Publication date
DE1960146A1 (en) 1971-07-22
NL7017465A (en) 1971-06-03
JPS4946671B1 (en) 1974-12-11
ES386028A1 (en) 1973-02-16
FR2072531A5 (en) 1971-09-24
BE759679A (en) 1971-04-30
US3703888A (en) 1972-11-28
GB1411051A (en) 1975-10-22
SE362119B (en) 1973-11-26
DE2203507A1 (en) 1973-08-02
AT307809B (en) 1973-06-12

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee