US3822679A - Fuel control system for fuel injection type internal combustion engine - Google Patents

Fuel control system for fuel injection type internal combustion engine Download PDF

Info

Publication number
US3822679A
US3822679A US00284474A US28447472A US3822679A US 3822679 A US3822679 A US 3822679A US 00284474 A US00284474 A US 00284474A US 28447472 A US28447472 A US 28447472A US 3822679 A US3822679 A US 3822679A
Authority
US
United States
Prior art keywords
fuel injection
electromagnetic valve
controlling electromagnetic
voltage
engine
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 - Lifetime
Application number
US00284474A
Other languages
English (en)
Inventor
N Hobo
Y Suzuki
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.)
Denso Corp
Original Assignee
NipponDenso Co Ltd
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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Application granted granted Critical
Publication of US3822679A publication Critical patent/US3822679A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F02D41/30—Controlling fuel injection
    • F02D41/38—Controlling fuel injection of the high pressure type

Definitions

  • the fuel control systern comprises an actuator chamber including a movable wall connected to the fuel injection characteristic controlling element of a fuel injection pump for a fuel injection type internal combustion engine, a forward controlling electromagnetic valve disposed in a passage interconnecting said actuator chamber and a source of high pressure fluid, a reverse controlling electromagnetic valve disposed in a passage connecting said actuator chamber to a low pressure exhaust, an operating condition detector for detecting an operating condition of the engine in the form of electrical operating condition signals, a control voltage generator for receiving said operating condition signals to produce a control voltage corresponding to a predetermined fuel injection characteristic of the engine, a
  • position voltage generator for generating a position voltage corresponding to the position of said controlling element, a comparator for comparing said control voltage with said position voltage to produce an output voltage corresponding to the difference therebetween, and a forward controlling electromagnetic valve driving circuit and a reverse controlling electromagnetic valve driving circuit selectively responsive to the output voltage of said comparator to generate an electrical output for driving said forward controlling electromagnetic valve and said reverse controlling electromagnetic valve selectively.
  • the present invention relates to a fuel control system for fuel injection type internal combustion engines, wherein the quantity of fluid in an actuator chamber including a movable wall is varied by means of electromagnetic valves operated by an electrical control circuit, whereby a fuel injection characteristic controlling element of a fuel injection pump is controlled in associ-- ation with the displacement of the movable wall.
  • Fuel control systems conventionally employed with fuel injection pumps for fuel injection type internal combustion engines have been mostly of mechanical type, in which a controlling element of a fuel injection pump which affects a fuel injection characteristic of the engine is operated by a centrifugal force produced by a weight disposed to rotate with the driving shaft of the fuel injection pump.
  • a so-called predetermined fuel injection characteristic such as an injected fuel quantity control characteristic or a fuel injection timing control characteristic predetermined for an engine
  • the present invention therefore comprises a fuel control system of the type in which the quantity of fuel contained in an actuator chamber 12 including-a movable wall 13 is controlled by a pair of electromagnetic valves 7 and 8, so that the fuel injection characteristic controlling element of a fuel injection pump is operated in response to the displacement of the movable wall 13.
  • the fuel control system comprises an operating condition detector 1 forelectrically detecting the operating conditions of an engine which are necessary to determine its predetermined fuel injection characteristic, a control voltage generator 2 for receiving the operating condition signal from the operating condition detector 1 to generate a control voltage corresponding to the fuel injection characteristic of the engine, an electrical position detector 4 for detecting the position of the fuel injection characteristic controlling element of the fuel injection pump 10 to generate a position voltage, and a comparator 3 for comparing said control voltage with said position voltage to generate an output voltage corresponding to the difference therebetween, whereby the output voltage of the comparator 3 is applied as an input signal to an electromagnetic valve driving circuit 5 or 6 so that the electromagnetic valves 7 and 8 are selectively operated with the valve actuating signals'from the driving circuits 5 and 6 to effect a negative feedback in such a manner that the set point for the position of the fuel injection characteristic controlling element of the fuel injectionpump 10 is selected to be one which satisfies the predetermined fuel injection characteristic.
  • FIG. 6 shows the principal part of another embodiment of the hydraulic servo motor.
  • FIG. 1 shows the construction of a fuel control system of the invention
  • numeral 1 designates an engine operating condition detector for detecting the operating conditions of an engine, such as, the rotational speed of the engine and the accelerator position necessary for determining a predetermined fuel injection characteristic of the engine and for generating an electrical operating condition signal, such as a speed voltage corresponding to the rotational speed of the engine or an accelerator voltage corresponding to the accelerator position.
  • Numeral 2 designates a control voltage generator for receiving as its input signal the operating condition signal from the operating condition detector l to generate a control voltage corresponding to a predetermined fuel injection characteristic of the engine.
  • This control voltage generator has the same function as an analog function generator with the predetermined fuel injection characteristic as a function pattern.
  • Numeral 3 designates a comparator which compares said control voltage and. a position voltage received from a position voltage generator 4 which voltage corresponds to the position of a fuel injection characteristic controlling element of a fuel injection pump 10 to thereby generate an output voltage corresponding to the difference between said two voltages.
  • Numerals 5 and 6 designate respectively a forward controlling electromagnetic valve driving circuit and a reverse controlling electromagnetic valve driving circuit, so that depending on whether the output voltage of the comparator 3 is above or below a reference value, either the forward controlling electromagnetic valve driving circuit 5 or the reverse controlling electromagnetic valve driving circuit 6 generates a valve actuating signal to operate the electromagnetic valve.
  • Numerals 7 and 8 designate a forward controlling 'electromagnetic'valve and a reverse controlling electromagnetic valve, respectively, which are opened upon receipt of the valve. actuating signal from the valve driving circuits 5 and 6, respectively.
  • Numeral 9 designates a hydraulic actuator in which the quantity of fluid in its actuator chamber is varied in accordance with the opening and closing of the forward controlling electromagnetic valve 7 and the reverse controlling electromagnetic valve 8, whereby the position of its movable wall is determined according to this variation and thus the fuel injection characteristic con trolling element of the fuel injection pump is operated in response to the displacement of the movable wall.
  • the forward controlling electromagnetic valve 7, reverse controlling electromagnetic valve 8 and hydraulic actuator 9 constitute a fluid servo motor 11 an embodiment of which is shown in FIG. 2.
  • numerals 7 and 8 designate the abovedescribed forward and reverse controlling electromagnetic valves, respectively and numeral 9 designates the above-mentioned hydraulic actuator.
  • the construction and operation of the electromagnetic valves 7 and 8 will be explained with reference to the forward controlling electromagnetic valve 7, in which numeral 17 designates an energizing coil. 18 a movable iron core connected to a valve 19, 20 a spring adapted to urge the valve 19 to its valve seat and thus place the electromagnetic valve 7 in its closed position when no energizing current flows in the energizing coil 17.
  • the hydraulic actuator 9 includes the movable wall 13 disposed in the actuator chamber 12 so that the hydraulic pressure in the actuator chamber 12 exerts a force on the movable wall 13, while a counteracting spring 14 also exerts a force on the movable wall 13 in a direction that counteracts the force due to the hydraulic force.
  • the fluid volume in the actuator chamber 12 is determined by the forward controlling electromagnetic valve 7 which opens and closes a passage 15 communicating with the high hydraulic pressure source and the reverse controlling electromagnetic valve 8 which opens and closes a passage 16 leading to the low pressure exhaust. When no energizing current is supplied to both of the forward and reverse controlling electromagnetic valves 7 and 8, the two valves are maintained in the closed position.
  • Numeral 13a designates a connecting rod connecting the movable wall 13 to the fuel injection characteristic controlling element of the fuel injection pump 10.
  • the movement of the movable wall 13 is transmitted through the connecting rod 13a to the fuel injection characteristic controlling element. of the fuel injection pump lil so that this controlling element is operated to regulate the amount of the fuel in- 20 jected.
  • the connecting rod 13a is connected to a movable contact 63' of a potentiometer 63. Consequently, in response to the movement of the connecting rod 13a, a voltage corresponding to the position of the movable wall 13 is generated at a point S.
  • FIG. 3 illustrates a diagram showing the most fundamental predetermined characteristics of the amount of fuel injected to a Diesel engine.
  • the ordinate represents the predetermined fuel injection quantity Q per cycle per cylinder for the engine and the abscissa represents the rotational speed N of the engine.
  • the parameter is the accelerator position 6 with 6 0 representing the minimum accelerator position, 0 9M representing the maximum accelerator position, and O 0 6M.
  • the curve connecting the points A, B, E and C represents the starting enrichment and idling fuel injection characteristic with the value of Q,- representing the quantity of fuel to be injected for starting the engine and N and N representing the number of revolutions dependent upon the starting enrichment speed and the idling speed, respectively.
  • the predetermined quantity of fuel injected when the engine is idling will be determined along the curve BCG.
  • the curve drawn through points E, F and G represents the full-load fuel injection quantity characteristic which is a predetermined fuel injection quantity characteristic of the engine at its full load operation.
  • Qp represents the full-load injection quantity
  • N and N represent the maximum output revolution and the maximum normal revolution of the engine, respectively.
  • the curve connecting points H, I and G represents a predetermined fuel injection quantity characteristic of the engine under its part Ioad condition when the accelerator position 6 0,.
  • numeral 1 designates the operating condition detector consisting of a speed detector 22 for generating a speed voltage (V proportional to the rotational speed of the engine and an accelerator detector 23 for generating a voltage corresponding to the position of the accelerator, i.e. an accelerator voltage (V).
  • the speed detector 22 comprises a toothed wheel 24 of magnetizable material which is related to the engine rpm. and an electromagnetic pickup 25 composed of a pickup coil wound around a permanent magnet and located opposite to the toothed wheel 24.
  • the electromagnetic pickup 25 generates a pulse voltage having a frequency proportional to the rotational speed of the engine and the waveform of this pulse voltage is then reshaped by a transistor 26.
  • the reshaped pulse voltage is thereafter applied to a DC converter circuit consisting of diodes 27 and 28, capacitors 29 and 30 and a resistor 31, thus generating a speed voltage across an emitter resistor 33 of a transistor 32 constituting an emitter follower.
  • the accelerator detector 23 generates a DC voltage corresponding to the position of the accelerator by means of a potentiometer 34 operatively associated with'the accelerator pedal.
  • Numeral2 designates the control voltage generator for generating a control voltage corresponding to the basic predetermined fuel injection quantity characteristic of the Diesel engine shown in FIG.'3.
  • the control voltage generator 2 comprises a start-idling control voltage generator 36, a full load-part load control voltage generator 37 and an upper limit selection circuit 38.
  • the speed voltage V is-applied as its inversion input, while the resistance values of resistors 40, 41, 42, 43 and 44 for determining the gain of the operational amplifier 39 and a bias voltage applied to its non-inversion input in accordance with the speed voltage V corresponding to the starting enrichment revolution N and the speed voltage V corresponding to the idling revolution N shown in FIG. 5 are selected and adjustment is effected by a potentiometer 48 connected to an amplifier output terminal 47 to obtain an output voltage V corresponding to the starting enrichment fuel injection quantity. Os.
  • a control voltage V generated at a point p changes with variations in the speed voltage V,- substantially as shown by the curve connecting points A, B, C and G in FIG. 5 (the voltage reference is assumed to be at the point ofa ground connection).
  • the full load-part load control voltage generator 37 receives the speed voltage V and the accelerator voltage V, as an inversion input and a non-inversion input to a differential operational amplifier 49.
  • the accelerator voltage V, is V,, V V V and V,, V respectively, while the resistance values of resistors 50, 51, 52, 34 and 34 are selected according to the speed voltages V and V corresponding to the maximum power revolution M and the maximum normal revolution N respectively, and adjustment is effected by a potentiometer 53 connected to the output terminal of theoperational amplifier 49 to provide an output voltage V corresponding to the full load fuel injection quantity O
  • a control voltage V generated at a point g changes with variations in the speed voltage V; substantiallyas shown by the curve .lFG shown in FIG. 5.
  • the control voltage V changes substantially as shown by the curves JHl'G and JEC"G, respectively.
  • the upper limit selection circuit 38 comprises diodes 54 and 55 and a resistor 56 andcurrent amplification is effected in an emitter follower transistor 57 thus generating the control voltage V across terminals r and e of an emitter resistor 58.
  • the control voltage V assumes a value equal to the value of either the control voltage V generated at the point p or the control voltage V generated at the point g, which is greater than the other. Accordingly, the pattern of the control voltage V becomes as shown with solid lines in FIG. 5 and it corresponds with the pattern of the predetermined fuel injection quantity characteristic shown in FIG. 3.
  • Numeral 3 designates the comparator to which the control voltage V generated by the upper limit selection circuit 38 is applied through a resistor 61 as an inversion input to a differential operational amplifier 60, while a voltage Vp obtained by dividing the power supply voltage by a potentiometer 63 is applied through a resistor 62 as a non-inversion input to the operational amplifier 60.
  • the voltage dividing ratio of the potentiometer 63 varies in response to the movement of the fuel injection quantity controlling element of the fuel injection pump (e.
  • the comparator 3 compares the control voltage V with the position signal V and produces the output voltage V corresponding to the difference between the two voltages.
  • V represents the output voltage of the comparator 3 when Vp V and that AV and 8 respectively represent the dead zones of the forward and reverse controlling electromagnetic valve driving circuits 5 and 6 in terms of the input and output voltages of the comparator 3 (where AV 0, a 0 if] v, v.-
  • the output voltage of the comparator 3 is applied to the forward controlling electromagnetic valve driving circuit 5 and the reverse controlling electromagnetic valve driving circuit 6.
  • the level of the output voltage of the comparator 3 is adjusted by a potentiometer 67 and a Zener diode 68 to provide an electromagnetic valve actuating output, so that when V V,, 5, a transistor 69 is rendered non-conductive causing a transistor 70 to become conductive and thus applying an actuating output voltage to the energizing coil 17 of the forward controlling electromagnetic valve 7 to open it and thus move the movable wall 13 of the hydraulic servo motor in the forward direction.
  • the output voltage level of the comparator 3 is also preset by a potentiometer 72 and a Zener diode 73 so as to generate an electromagnetic valve actuating output voltage.
  • a transistor 74 conducts rendering a transistor 75 non-conductive and a transistor 76 conductive, so that a valve actuating output voltage is applied to a energizing coil 77 of the reverse controlling electromagnetic valve 8, thereby moving the movable wall 13- of the hydraulic servo motor in the reverse direction.
  • the forward controlling electromagnetic valve driving circuit 5 applies a valve actuating output voltage to the forward controlling electromagnetic valve 7, causing the hydraulic servo motor to move the fuel injection characteristic controlling element in the forward direction, i.e. the direction to increase the quantity of fuel injected.
  • the hydraulic servo motor used in the illustrated embodiment may also be constructed as shown in FIG. 6.
  • numerals 7 and 7 designate forward controlling electromagnetic valves; 8 and 8 reverse controlling electromagnetic valves. All of these electromagnetic valves are of the identical construction as the electromagnetic valve 7 shown in FIG. 2.
  • a hydraulic actuator 9 is provided with two actuator chambers 12' and 12 and two movable walls 13' and 13" fixedly spaced away from each other with a preset distance by a connecting rod llia.
  • Numeral l5 designates a passage leading to a source of high hydraulic pressure, 16 a passage leading to a low pressure exhaust.
  • the connecting rod l3a is also connected to the fuel injection characteristic controlling element.
  • a fuel control means equivalent to the hydraulic servo motor shown in FIG. 2 may be constructed.
  • the hydraulic servo motor of FIG. 6 is advantageous because of its ease of manufacture and maintenance due to the reduced pressure of the high hydraulic pressure source.
  • the present invention may also be applied to the control of fuel injection timing.
  • the operating condition detector electrically detects such operating conditions of an engine as the engine rotational speed and the acceleration of the engine speed which are necessary-to determine the time of injecting the fuel to the engine, and the control voltage generator generates a control voltage corresponding to a predetermined fuel injection time control characteristic of the engine, whereby the control voltage thus obtained and the position voltage corresponding to the detected position of the fuel injection time controlling element of the fuel injection pump 10 are applied to the comparator to produce a comparator output voltage corresponding to the difference between the two voltages and thus actuate the corresponding electromagnetic valve of the hydraulic servo motor through its electromagnetic valve driving circuit. Therefore, the construction of such a fuel injection time control system is identical with that shown in FIG. 2.
  • fluids such as compressed air may be used as the actuating fluid with the present invention.
  • the present invention provides a fuel control system of the type employing an electromagnetic valve-operated fluid servo motor to operate a fuel injection characteristic controlling element of a fuel injection pump, wherein operating conditions of an engine are electrically detected and utilized as input information to provide a control voltage corresponding to a predetermined fuel injection characteristic of the engine, and the position of the fuel injection characteristic controlling element of the fuel injection pump is detected as a position voltage, whereby the control voltage and the position voltage are compared in a comparator to produce a comparator output voltage corresponding to the difference between the two voltages, the comparator output voltage being used to selectively actuate the electromagnetic valves of the fluid servo motor to control the position of the fuel injection characteristic controlling element of the fuel injection pump, thereby automatically controlling the position of the fuel injection characteristic controlling element, with that position which satisfies the predetermined fuel injection characteristic of the engine as its desired value.
  • a fuel control system for a fuel injection type internal combustion engine comprising a fluid servo motor including an actuator chamber having a movable wall connected .to a fuel injection quantity controlling element of a fuel injection pump for the engine, a forward controlling electromagnetic valve provided in a passage connecting said actuator chamber to a high pressure fluid source, and a reverse controlling electromagnetic valve provided in a passage connecting said actuator chamber to a low pressure exhaust; an operating condition detector for detecting operating conditions of the engine to generate electrical operating condition signals; a control voltage generator for receiving said operating condition signals to generate a control voltage corresponding to a predetermined quantity of fuel injected to the engine; a position voltage generator for generating a position voltage corresponding to the position of said fuel injection quantity controlling element; a comparator for comparing said control voltage with said position voltage to generate an output voltage corresponding to the difference between said voltages; and a forward controlling electromagnetic valve driving circuit and a reverse controlling electromagnetic valve driving circuit selectively responsive to said output voltage of said comparator to generate an electrical output for selectively opening said forward controlling electromagnetic valve and said reverse controlling electromagnetic
  • a fuel control system for a fuel injection type internal combustion engine comprises a pair of movable walls reciprocatingly mounted in said actuator chamber and fixedly supported and spaced away from each other by a connecting rod connectable to said fuel injection quantity controlling element, a first fluid chamber defined between one of said pair of movable walls and one of the inner wall ends of said actuator chamber, a second fluid chamber defined between the other of said pair of movable walls and the other of said inner wall ends of said actuator chamber, a first forward controlling electromagnetic valve provided in a passage connecting said first fluid chamber to said high pressure fluid source and a second reverse controlling electromagnetic valve provided in a passage connecting said first fluid chamber to a low pressure exhaust, and a first reverse controlling electromagnetic valve provided in a passage connecting said second fluid chamber to said high pressure fluid source and a second forward controlling electromagnetic valve provided in a passage connecting said second fluid chamber to said low pressure exhaust, whereby when only said first and second forward controlling electromagnetic valves are opened, said pair of movable walls are moved in the direction which causes said fuel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
US00284474A 1971-09-08 1972-08-29 Fuel control system for fuel injection type internal combustion engine Expired - Lifetime US3822679A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6941771A JPS5417892B2 (enrdf_load_stackoverflow) 1971-09-08 1971-09-08

Publications (1)

Publication Number Publication Date
US3822679A true US3822679A (en) 1974-07-09

Family

ID=13401998

Family Applications (1)

Application Number Title Priority Date Filing Date
US00284474A Expired - Lifetime US3822679A (en) 1971-09-08 1972-08-29 Fuel control system for fuel injection type internal combustion engine

Country Status (3)

Country Link
US (1) US3822679A (enrdf_load_stackoverflow)
JP (1) JPS5417892B2 (enrdf_load_stackoverflow)
DE (1) DE2244017C3 (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3967603A (en) * 1973-05-22 1976-07-06 Roger Jean Habert Speed sensitive switching device
US3968778A (en) * 1974-08-16 1976-07-13 General Motors Corporation Electronic internal combustion engine ignition spark vacuum and speed advance system with ignition dwell time directly proportional to engine speed
US3972310A (en) * 1974-08-16 1976-08-03 General Motors Corporation Electronic internal combustion engine ignition spark vacuum and speed advance system
US3973538A (en) * 1973-01-06 1976-08-10 C.A.V. Limited Fuel systems for engines
US4002415A (en) * 1974-08-13 1977-01-11 C.A.V. Limited Distributor type fuel injection pumps
US4096833A (en) * 1976-10-04 1978-06-27 The Bendix Corporation Circuit for frequency modulated fuel injection system
US4132195A (en) * 1976-07-17 1979-01-02 Robert Bosch Gmbh Method and apparatus for fuel mixture control
US4167373A (en) * 1973-05-11 1979-09-11 C.A.V. Limited Fuel injection pumping apparatus
US4203395A (en) * 1977-09-16 1980-05-20 The Bendix Corporation Closed-loop idle speed control system for fuel-injected engines using pulse width modulation
US4270502A (en) * 1978-06-10 1981-06-02 Lucas Industries Limited Fuel injection pumping apparatus
EP0122408A3 (de) * 1983-04-15 1986-11-20 Klöckner-Humboldt-Deutz Aktiengesellschaft Einrichtung zur Steuerung des Regelstangenanschlages einer Kraftstoffeinspritzpumpe
US4878470A (en) * 1987-10-30 1989-11-07 Robert Bosch Gmbh Device for actuating butterfly throttle valve of an internal combustion engine
WO2015100492A1 (en) * 2013-12-31 2015-07-09 General Fusion Inc. Systems and methods for gas injection and control

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517214B2 (enrdf_load_stackoverflow) * 1973-12-28 1980-05-09
JPS5178180U (enrdf_load_stackoverflow) * 1974-12-14 1976-06-21
JPS5199083U (enrdf_load_stackoverflow) * 1974-12-28 1976-08-09
DE3007662A1 (de) * 1980-02-29 1981-09-10 Daimler-Benz Ag, 7000 Stuttgart Elektronische regelung
JPS593125A (ja) * 1982-06-29 1984-01-09 Hino Motors Ltd 燃料の供給量の制御装置
JPS593124A (ja) * 1982-06-29 1984-01-09 Hino Motors Ltd 燃料の供給量の制御装置
FR2534627A1 (fr) * 1982-10-18 1984-04-20 Renault Vehicules Ind Dispositif de commande d'injection pour moteur diesel
DE3605824A1 (de) * 1986-02-22 1987-08-27 Bosch Gmbh Robert Kraftstoffeinspritzpumpe zur versorgung der brennraeume von fuer fahrzeugantriebe vorgesehenen brennkraftmaschinen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199293A (en) * 1963-08-15 1965-08-10 Gen Electric Two shaft gas turbine control system
US3455411A (en) * 1967-10-24 1969-07-15 Bendix Corp Automobile speed control
US3556245A (en) * 1968-12-04 1971-01-19 Ford Motor Co Position to voltage transducer and speed control system utilizing same
US3587540A (en) * 1968-07-25 1971-06-28 Bosch Gmbh Robert Rpm regulating system for internal combustion engines operating on injected fuel
US3630177A (en) * 1968-10-12 1971-12-28 Bosch Gmbh Robert Speed control for internal combustion engine
US3724430A (en) * 1969-10-15 1973-04-03 Bosch Gmbh Robert Fuel injection regulator for internal combustion engines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3199293A (en) * 1963-08-15 1965-08-10 Gen Electric Two shaft gas turbine control system
US3455411A (en) * 1967-10-24 1969-07-15 Bendix Corp Automobile speed control
US3587540A (en) * 1968-07-25 1971-06-28 Bosch Gmbh Robert Rpm regulating system for internal combustion engines operating on injected fuel
US3630177A (en) * 1968-10-12 1971-12-28 Bosch Gmbh Robert Speed control for internal combustion engine
US3556245A (en) * 1968-12-04 1971-01-19 Ford Motor Co Position to voltage transducer and speed control system utilizing same
US3724430A (en) * 1969-10-15 1973-04-03 Bosch Gmbh Robert Fuel injection regulator for internal combustion engines

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973538A (en) * 1973-01-06 1976-08-10 C.A.V. Limited Fuel systems for engines
US4167373A (en) * 1973-05-11 1979-09-11 C.A.V. Limited Fuel injection pumping apparatus
US3967603A (en) * 1973-05-22 1976-07-06 Roger Jean Habert Speed sensitive switching device
US4002415A (en) * 1974-08-13 1977-01-11 C.A.V. Limited Distributor type fuel injection pumps
US3968778A (en) * 1974-08-16 1976-07-13 General Motors Corporation Electronic internal combustion engine ignition spark vacuum and speed advance system with ignition dwell time directly proportional to engine speed
US3972310A (en) * 1974-08-16 1976-08-03 General Motors Corporation Electronic internal combustion engine ignition spark vacuum and speed advance system
US4132195A (en) * 1976-07-17 1979-01-02 Robert Bosch Gmbh Method and apparatus for fuel mixture control
US4096833A (en) * 1976-10-04 1978-06-27 The Bendix Corporation Circuit for frequency modulated fuel injection system
US4203395A (en) * 1977-09-16 1980-05-20 The Bendix Corporation Closed-loop idle speed control system for fuel-injected engines using pulse width modulation
US4270502A (en) * 1978-06-10 1981-06-02 Lucas Industries Limited Fuel injection pumping apparatus
EP0122408A3 (de) * 1983-04-15 1986-11-20 Klöckner-Humboldt-Deutz Aktiengesellschaft Einrichtung zur Steuerung des Regelstangenanschlages einer Kraftstoffeinspritzpumpe
US4878470A (en) * 1987-10-30 1989-11-07 Robert Bosch Gmbh Device for actuating butterfly throttle valve of an internal combustion engine
WO2015100492A1 (en) * 2013-12-31 2015-07-09 General Fusion Inc. Systems and methods for gas injection and control

Also Published As

Publication number Publication date
DE2244017A1 (de) 1973-03-22
DE2244017C3 (de) 1980-02-14
DE2244017B2 (de) 1979-05-17
JPS5417892B2 (enrdf_load_stackoverflow) 1979-07-03
JPS4835231A (enrdf_load_stackoverflow) 1973-05-24

Similar Documents

Publication Publication Date Title
US3822679A (en) Fuel control system for fuel injection type internal combustion engine
US3630177A (en) Speed control for internal combustion engine
US4047507A (en) Fuel economizing system
US3673989A (en) Acceleration actuating device for fuel injection system
US4622936A (en) Electronic fuel controller for an automotive internal combustion engine
US3796197A (en) Electronic regulator with fuel injection control for diesel engines
US3935851A (en) Fuel metering system for spark ignition engines
US3319613A (en) Fuel injection system
US4019478A (en) Fuel injection timing control system for internal combustion engine
US4333440A (en) Apparatus for controlling recirculated exhaust gas quantities in self-igniting internal combustion engines
US4159697A (en) Acceleration enrichment circuit for fuel injection system having potentiometer throttle position input
US3724430A (en) Fuel injection regulator for internal combustion engines
US2992640A (en) Fuel injection system
GB2161959A (en) Fuel injection quantity regulating means
US4066968A (en) Method and apparatus for providing a periodic control signal, especially for controlling the ignition of an internal combustion engine
US4243009A (en) Detonation control apparatus for outboard motor
US3911883A (en) Fuel systems for engines
US4003350A (en) Fuel injection system
US3718123A (en) Apparatus for regulating the air-fuel mixture in an externally ignited internal combustion engine operating on injected fuel
US4266522A (en) Fuel injection systems
US3482558A (en) Fuel injection system
US3335708A (en) Discriminator devices
US3203410A (en) Electrically controlled fuel injection system
US4191137A (en) Electronic fuel injection control for an internal combustion engine
US3747576A (en) Electronic fuel injection system including transient power compensation