EP0725215B1 - Dispositif d'injection de combustible suivant le principe de l'accumulateur d'énergie solide, pour moteurs à combustion interne - Google Patents

Dispositif d'injection de combustible suivant le principe de l'accumulateur d'énergie solide, pour moteurs à combustion interne Download PDF

Info

Publication number
EP0725215B1
EP0725215B1 EP96101218A EP96101218A EP0725215B1 EP 0725215 B1 EP0725215 B1 EP 0725215B1 EP 96101218 A EP96101218 A EP 96101218A EP 96101218 A EP96101218 A EP 96101218A EP 0725215 B1 EP0725215 B1 EP 0725215B1
Authority
EP
European Patent Office
Prior art keywords
armature
mechanism according
fuel
pump
valve
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
EP96101218A
Other languages
German (de)
English (en)
Other versions
EP0725215A2 (fr
EP0725215A3 (fr
Inventor
Wolfgang Dr. Heimberg
Wolfram Hellmich
Franz Kögl
Paul Malatinszky
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.)
Ficht GmbH and Co KG
Original Assignee
Ficht GmbH and Co KG
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 DE4206817A external-priority patent/DE4206817C2/de
Application filed by Ficht GmbH and Co KG filed Critical Ficht GmbH and Co KG
Publication of EP0725215A2 publication Critical patent/EP0725215A2/fr
Publication of EP0725215A3 publication Critical patent/EP0725215A3/de
Application granted granted Critical
Publication of EP0725215B1 publication Critical patent/EP0725215B1/fr
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
    • 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
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D33/00—Controlling delivery of fuel or combustion-air, not otherwise provided for
    • F02D33/003—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge
    • F02D33/006—Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus ; Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge depending on engine operating conditions, e.g. start, stop or ambient conditions
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0047—Layout or arrangement of systems for feeding fuel
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • 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
    • F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
    • F02M39/005—Arrangements of fuel feed-pumps with respect to fuel injection apparatus
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/04—Pumps peculiar thereto
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/007—Venting means
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
    • F02M57/027—Injectors structurally combined with fuel-injection pumps characterised by the pump drive electric
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/38—Pumps characterised by adaptations to special uses or conditions
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/047—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves being formed by deformable nozzle parts, e.g. flexible plates or discs with fuel discharge orifices
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
    • 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
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/06—Use of pressure wave generated by fuel inertia to open injection valves
    • 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
    • F02M69/24—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 for transmitting the movement of the air throttle valve actuated by the operator to the valves controlling fuel passages
    • 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
    • F02M69/34—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 auxiliary fuel circuit supplying fuel to the engine, e.g. with the fuel pump outlet being directly connected to injection nozzles
    • 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
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2058—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit using information of the actual current value
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/2068—Output circuits, e.g. for controlling currents in command coils characterised by the circuit design or special circuit elements
    • F02D2041/2075—Type of transistors or particular use thereof
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/08—Feeding by means of driven pumps electrically driven
    • F02M2037/085—Electric circuits therefor
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/24—Fuel-injection apparatus with sensors
    • 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
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator

Definitions

  • the invention relates to a device for injecting Fuel for internal combustion engines in the preamble of the claim 1 specified Art.
  • Injection devices their electrically operated reciprocating pumps according to the so-called solid-state energy storage principle work, have a delivery piston or cylinder on accelerated along a certain path almost without resistance, usually fuel is moved before the delivery pressure is built up to spray the fuel through the injector is required. That way before the actual pressure build-up required for injection kinetic energy absorbed or stored, which then suddenly converted into a pressure increase in the fuel becomes.
  • the housing is formed from a cylindrical block, which has a central bore in which the delivery piston the injection pump slides and the fuel delivery chamber forms. Concentric to this central hole is one deep narrow groove for receiving the coil driving the armature brought in.
  • This unit injector is on the back completed by a closure piece, one as an inlet channel serving bore. There is a nozzle on the front attached, which is in communication with the fuel delivery chamber.
  • the invention has for its object a fuel injection device, those based on the solid-state energy storage principle works to create the very compact, simple can be produced and assembled.
  • the injection device according to the invention consists of a few cylindrical parts that are easy to manufacture and assemble are.
  • a delivery line 2 is connected to a spray nozzle device 3.
  • a delivery line 2 branches off an intake line 4, which with a fuel reservoir 5 (tank) is connected.
  • the pump 1 is designed as a piston pump and has a housing 8, in which a magnet coil 9 is mounted, one in the area of the coil passage arranged anchor 10, which as a cylindrical body formed and in a housing bore or a cylindrical Housing interior 11 is guided, which is in the area the central longitudinal axis of the ring coil 9, and by means of a compression spring 12 is pressed into an initial position, in which it bears on the floor 11a of the interior 11. Supported is the compression spring 12 on the end face on the injection nozzle side of the armature 10 and one opposite this end face Ring step 13 of the interior 11.
  • the spring 12 includes with play a delivery piston 14 which is connected to the armature 10 by the spring 12 loaded anchor face, e.g. in one piece, connected is.
  • the delivery piston 14 plunges relatively deep into one cylindrical fuel delivery chamber 15, which is coaxial in axial Extension of the housing bore 11 is formed in the pump housing 8 and is in transmission connection with the pressure line 2 stands. Due to the immersion depth, pressure drops can occur during of the sudden pressure rise can be avoided, the Manufacturing tolerances between the piston 14 and cylinder 15 even can be relatively large, e.g. only in hundredths Millimeter range need to be, so that the manufacturing cost is low.
  • a check valve 16 is arranged in the intake line 4.
  • the housing 17 of the valve 16 is, for example, as a valve element a ball 18 arranged by in its rest position a spring 19 against its valve seat 20 on the reservoir side End of the valve housing 17 is pressed.
  • the spring 19 is supported on the one hand on the ball 18 and on the other hand on the wall of the valve seat 20 opposite Housing 17 in the area of the mouth 21 of the intake line 4th
  • the coil 9 of the pump 1 is connected to a control device 26, that as electronic control for the injector serves.
  • the armature 10 is in the de-energized state of the coil 9 Pump 1 by the bias of the spring 12 on the bottom 11a.
  • the Fuel feed valve 16 is closed.
  • the coil 9 is switched off. Of the Armature 10 is moved back to floor 11a by spring 12. At the same time, the fuel supply valve 16 opens, so that fuel is sucked out of the tank 5.
  • a stand pressure in the injector side space which e.g. is higher than the vapor pressure of the liquid at maximum temperature, so that bubbles form is prevented.
  • the parking pressure valve can e.g. as the Valve 16 may be formed.
  • the delivery piston 14 is axially displaceable in the Anchor 10 stored.
  • there is a graduated armature 10 Center longitudinal bore 108a in the manner of a blind hole formed, the blind hole end region of the bore 108a a has a smaller diameter than a central section and forms a stop ring step 108, in the central part the delivery piston 14 is guided by an integral with this trained guide ring 105, which has a larger diameter has as the delivery piston 14 and the expanded central bore area is adapted.
  • the guide ring 105 of the delivery piston 14 is acted upon by a compression spring 106, which is relatively softly lined up and deals with her the other end at the bottom of the blind hole end portion of the bore 108a supported in the anchor 10.
  • the guide ring is in the rest position 105 with its ring face on the delivery piston side by action the spring 106 on an annular stop surface 107 of the central Subrange, which acts as a step between that in diameter larger central bore section and that in diameter smaller bore portion is formed with the opening that the delivery piston 14 passes through.
  • the injection device shown in Fig. 2 has in the pressure line 2 also a check valve 16a, the structure of which corresponds to the check valve 16 and accordingly with a spherical valve element 117 and a return spring 118 is equipped.
  • the purpose of this check valve is primarily in that in line 2 between nozzle 3 and Valve 16a maintains a static pressure in the fuel that e.g. higher than the vapor pressure of the liquid at the maximum occurring Temperature is.
  • Delivery piston 14 and armature 10 are relative to one another as in FIG. 1 slidably designed.
  • anchor 10 a through bore 10a penetrated by the delivery piston 14 is formed.
  • an annular stop 14a attached on the delivery piston 14 is at the free end that from the Armature 10 protrudes rearward, an annular stop 14a attached.
  • Another stop ring 14b is located in the pressure chamber 15 of the delivery piston 14, the armature 10 between the two Stop rings 14a and 14b on the piston 14 with a gap "X" sits, indicating the possible acceleration stroke of the armature 10 marked.
  • the armature return spring 12 engages over the stop ring 14b so that it is not disturbed by the ring 14b becomes.
  • this embodiment of the injector corresponds to that of the injection device according to FIG. 1, the Armature 10 in this case the piston 14 via the rings 14a and 14b acted upon.
  • Embodiments of the injector will promote the fuel to the injector 3 by electromagnetic Generates power and the necessary for fuel intake Return movement of the conveyor element 14 and the armature 10 by the spring 12 causes. Can be used for special applications however, prove advantageous to reverse this principle, i.e. the delivery movement to the injector by spring force and To achieve suction motion electromagnetically against the spring force, with the electromagnetic force simultaneously for re-tensioning the spring ensures.
  • a corresponding one preferred embodiment of the injection device according to the invention is shown in Fig. 3.
  • FIG. 3 Injector designed similar to the injector in FIG. 2.
  • the injection pump 1 is connected to a pressure line 2 connected to the injector 3, in the pressure line 2 a check valve to prevent air bubbles 16a is arranged, which has the same structure as the check valve 16.
  • the injection pump 1 becomes electromagnetic operated.
  • the armature 10 is relative to the delivery piston 14, the delivery piston axially movable penetrates a bore 10a in the armature 10.
  • the delivery piston 14 faces away from the pressure chamber 15 End of the stop ring 14a which, as described in more detail below, a stop surface forms an active connection with an adjustable in the housing 8, and for example adjustable by a Baudenzug stop bolt 8a.
  • the delivery piston 14 projects into the delivery cylinder 15, the part of the delivery piston located in the interior 11 14 the stop ring 14b sits in the direction of the anchor 10 has an annular space 14c.
  • the armature 10 is on its back by the return spring 12 applied, which is supported on the floor 11a of the interior 11, so that the armature 10 presses against the ring 14b and this against the ring line 13 of the interior 11 on the pressure line side presses. So that the rest position of the delivery piston 14 and Anchor 10 defined.
  • the armature 10 is on the delivery piston 14 the path "X" is freely movable axially.
  • the armature 10 When the coil 9 is excited, the armature 10 is initially only against the spring 12 moves; after the path "X", the delivery piston 14 included in the armature movement and the suction stroke carried out. During the suction stroke, the inlet valve 16 and fuel open flows into the pump chamber 2, 15. The spring 14d ensures that the delivery piston 14 and the armature 10 no undesirable relative movements run against each other. Depending on the amount offered electrical energy arises at different Suction strokes a balance of forces between the spring 12 and the electromagnetic force. So that can be hosed down Amount of fuel over the amount of electrical energy supplied being controlled.
  • the delivery piston 14 leads on its way to the possible Stop 13 from the actual delivery stroke, which for hosing of fuel passes through the injector 3 until the delivery piston with the front face in the conveying direction its annular extension 14b abuts the stop 13, which stops fuel delivery.
  • This type of construction enables one in particular over time short pressure surge caused by a defined delivery end is marked.
  • This has significant advantages in two-stroke engines due to their particularly high speed allow only short mixture preparation times.
  • Motors that have no defined electrical energy supply Provide how this is necessary for electronic control is.
  • an electromagnetic Coil e.g. for simple ignition systems of small engines is common to be excited once per revolution and one Deliver current impulse, in its weakest form just that enables full anchor stroke. Used for quantity dosing in In this case, the stop 8a which adjusts the suction stroke and which this purpose in the simplest case with the throttle valve Motor is in mechanical connection.
  • the principle of solid-state energy storage for a fuel injection device has the main advantage that the Pressure increase in the pump system independent of the one to be sprayed Amount of fuel is very steep. This allows a small nozzle opening pressure because with the nozzle open, it's always a good thing Atomization of sufficiently high fuel pressure at the nozzle. This advantage is optimally exploited in that in FIG. 4 illustrated embodiment of the injection device according to the invention, where the delivery piston by hitting on a nozzle needle simultaneously opening and closing the Injector controls. It is also advantageous that the Height of the nozzle opening pressure and thus, for example, the usage-related No decrease in the spring force of the nozzle spring Influence on the amount of fuel sprayed.
  • the injection device shown in FIG. 4 sees a constructionally uniform Formation of the injector 3 and the injection pump 1 before.
  • the common housing of the device is formed in several parts and consists essentially of one tubular internal housing cylinder 300, which in one Section that encloses the injection pump anchor 10 by a non-magnetic ring member 301 is divided so that on the armature 10 can be exerted by a coil 9.
  • the two housing areas of the housing cylinder 300 are in the Area of the ring element 301 hydraulically tightly connected to one another, and the coil 9 is seated on the outer circumference of the housing cylinder 300, overlapping the ring element 301 in the axial direction.
  • a cylindrical housing part 302 which surrounds the housing cylinder 300 and encloses the coil 9 from the outside.
  • a connector 303 screwed.
  • the connector 303 has a through hole 305, which acts as a feed line for the Serves fuel, which is symbolized by the arrow in front of bore 305 becomes.
  • the injector 3 is inserted into a thread.
  • a passage in the housing cylinder 300 provided with areas of different diameters.
  • the passage has its connection part 303 Area of greatest diameter on which the working space 306 for forms the armature 10 of the injection pump 1.
  • This work space 306 is delimited on the tank side by an annular bottom surface 11a, which serves as a stop surface for the armature 10 when it is through the spring 12 is pushed into its rest position.
  • the tank follows the bottom surface 11a of an enlarged diameter Bore 305, in which the inlet valve 16 is seated, the function of the feed valve 16 in Fig. 1 comes.
  • the inlet valve 16 has a disk-shaped valve element 307, which by a Spring 308 is urged against its valve seat by the Annular surface is formed as a step between the through hole 305 and their diameter-enlarged area is.
  • the spring 308 is supported at the other end on the armature 10.
  • the armature 10 is penetrated by a through hole 309, which is axially aligned with the bore 305 of the connecting part 303.
  • the armature 10 has a reduced diameter area in the end area on the pressure side.
  • the armature return spring 12 supports on the anchor 10 on the ring surface, which in the step area between the smaller diameter and larger diameter range the armature 10 is formed.
  • the other supports Spring 12 on an annular surface in the housing cylinder 300th is formed on an inwardly projecting ring 300a the larger diameter working space 306 and in the direction of Nozzle 3 following smaller diameter pressure chamber 11 of the passage of the housing cylinder 300.
  • the reduced diameter end region the armature 10 is designed so that it the ring 300a can take hold.
  • the delivery piston 14 is seated in the pressure chamber 11 separate from the anchor.
  • the delivery piston 14 is cylindrical Hollow body formed and has a cylindrical cavity 14e on, through axial bores 312, 313 with the pressure chamber 11 communicates.
  • a pressure valve is located in the cavity 14e, that of a valve plate 310 and a valve plate 310 acting spring 311, the valve plate 310th is pressed against the bore 312.
  • the valve plate 310 of the Pressure valve thus closes inlet 312 under spring force, wherein edge recesses 310a are made in the valve plate are.
  • the injection nozzle device 3 is in the housing cylinder 300 inserted at the end and includes a screwed plug-shaped Body 314 with central through bore 314a, the the tappet stem 315 of a valve tappet 317 passes through, the Ram plate 316 closes the exit of bore 314a.
  • the Tappet plate 316 can thus be inserted into plug 314 Valve seat engage and under action a spring 318, which is on the one hand on an internal annular end face of the plug 314 and on the other a spring washer 315a supports the inner end of the plunger stem 317 is fixed.
  • the nozzle tappet stem 317 protrudes into the pressure chamber 11 of the housing cylinder 300 in which the delivery plunger 14 is located on the stopper 314 supporting spring 320 in its rest position against the Ring 300a is pushed, in which he with the anchor facing End face on a stop surface 321 of the ring 300a is present.
  • conveyor piston 14 With injector 3 closed and in the rest position conveyor piston 14 is left an axial distance "H" between the inner end of the plunger 317 and the opposite end face of the axially movable delivery piston 14.
  • the injector shown in Fig. 4 works like follows.
  • the armature 10 is in the magnetic field generated via the coil 9 accelerated against the force of its return spring 12.
  • the acceleration stroke "X" (this is the axial one Distance between delivery piston 14 and armature 10, if these two Elements are in the rest position) can be in the pump work room 306 located fuel through the bore 309 flow the back of the armature.
  • the anchor 10 strikes at the end of its Acceleration stroke "X" on the delivery piston 14, so the fuel in the pressure chamber 11 is suddenly compressed. Due to this pressure increase and the fact that the Delivery piston 14 strikes piston rod 315 after a stroke "H", the nozzle 3 is opened and fuel is sprayed off.
  • the delivery piston 14 After the end of the spraying process, the delivery piston 14 by its return spring 320 in turn against its anchor side Stop 321 moves. At the same time, the nozzle needle closes 317 through their plate 316 the nozzle bore. With the return movement of the delivery piston 14 opens that arranged in it Pressure valve 310, 311 and fuel flow from armature space 306 in the pressure chamber 11 after.
  • a slightly modified injection device of the in Fig. The injection device shown in FIG. 4 is shown in FIG. 5, essentially only the reference numbers are entered are related to or related to the variation.
  • the modification is that the plunger handle 315 in the Bore 313 passes through and into the interior 14e of the Delivery piston 14 projects, at the end of the plunger stem 315 Ring 322 is formed, which is a bearing of the spring in space 14e 311 of the pressure valve 311, 310 forms.
  • In the bore 313 are edge grooves 313a introduced for the flow possibility of fuel.
  • the tappet valve return spring 318 are dropped.
  • the delivery piston starts to move 14 takes place against the inertia of the nozzle needle 317 by the pressure in the fuel and the spring force of the spring 311 opening the nozzle 3. Otherwise, the function corresponds to 5 of that of FIG. 4th
  • the electrically driven or electronically controlled injection requires sufficient electrical power to start and run Energy.
  • the electrical energy is not in sufficient size is available should according to the invention the possibility to be created engines with the invention To start injection without electrical energy, for example using a hand crank drive.
  • the fuel required is, as explained in more detail below, by an auxiliary device made available. If the engine reaches one Speed at which the generator provides sufficient energy, the fuel auxiliary device according to the invention switched off and the injection takes place electrically or electronically controlled, according to the normal case.
  • engines that start without electrical energy e.g. by hand or kick start device. This includes small ones Motors for hand tools, two-wheel vehicles or outboards. This starting device is required because none There is a battery for starting and / or running. About that In addition, engines should, for example, even when the battery is flat be bootable without electrical energy.
  • the possibility of motors without electrical To start energy by auxiliary means that the fueling condition present on each engine, e.g. the inlet gradient or the pressure of the fuel delivery pump Starting speed is used.
  • the fuel becomes the intake manifold or the overflow in two-stroke engines or a metering device fed directly.
  • the engine reaches one Speed at which the generator has sufficient energy for the Provides injection, a valve blocks the direct fuel supply to the engine, the fuel becomes the injector fed and this then takes over the fuel supply of the motor.
  • FIG. 6 shows an arrangement for supplying fuel according to the invention of an engine 500. This is after a fuel back pressure pump 501, the intake side with a fuel tank 502 is connected, a branch of the fuel feed provided for the engine. One is on when de-energized a generator 503 connected injector 504, the constructed according to one of the above embodiments is inactive, and for example electromagnetic actuated control valve 505 is closed for the fuel supply an atomizer 506 on the engine 500 opened.
  • a hand pump 509 present on many motors can optionally additionally during the starting process for the direct fuel supply can be used for the motor via the atomizer 506.
  • the Hand pump 509 is in the connecting line 511 from the pump 501 arranged to the control valve 505. Actuation of the control valve 505 is carried out by the injection control 507 via a Control line 510.
  • Fig. 7 shows a modification of the arrangement of FIG. 6, in which the control valve 505 in the injection line 511 between the Injector 504 and the injector 508 arranged is.
  • the function of stormless starting corresponds to that Function explained above with reference to FIG. 6.
  • injector 504 In order for the fuel to flow through without pump support To ensure injector 504 is the flow resistance injector 504 is kept small. Advantageous is in the process of venting injector 504 and the injection line 511 is easily possible. Should the Injector 504 are vented, so the control valve 505 via an off switch 512 in the line from the Injection control 507 to control valve 505 de-energized, unless this has already been done by the injection control 507 is. As a result, the control valve 505 is in the direction of the atomizer 506 opened, and the air in the system can at simultaneous pumping, for example with the pre-pressure pump 501 or the hand pump 509.
  • FIGS. 6 and 7 can also for the Emergency operation of the engine can be used, for example insufficient power supply due to generator failure available for the injection control and the injection device is. According to the invention, this is done by a metering device, for example by an adjustable, with the Throttle valve in the air intake pipe coupled throttle in the control valve a quantity variation of the fuel, which is a control the engine load allowed makeshift.
  • a metering device for example by an adjustable, with the Throttle valve in the air intake pipe coupled throttle in the control valve a quantity variation of the fuel, which is a control the engine load allowed makeshift.
  • Fig. 8 shows a suitable embodiment of the Control valve or the metering valve 505 in FIGS. 6 and 7.
  • the control valve 505 has a housing 520 into which one Coil 521 is used to drive an armature 522 serves, which is displaceable in a bore 523 of the housing 520 is stored and in its rest position by a return spring 524 against an adjustable one arranged in the housing 520 Stop 525 is pushed to the outside of the housing Cable 526 is connected. Longitudinal grooves are peripheral in armature 522 527 formed which is a communication from in the bore 523 fuel present between the front and rear of anchor 522.
  • the piston-shaped stop 525 passes through the housing end wall 520b and is in the Housing 520 by means of a spring 528 opposite the housing end wall 520b biased.
  • the end face of the armature 522 is a metering piston 527. This The end face is also acted upon by the return spring 524, which is against the end wall 520a of the housing 520 supports.
  • the dosing piston 527 protrudes with a tapered Spigot end in the delivery line 511, one of which is also Connection line 511a branches off to the atomizer 506.
  • the cable pull 526 which on the spring force against the armature 522nd preloaded stop 525 is connected to the throttle valve 530 (see Fig. 7, 8). The throttle position is thereby transferred directly to the stop 525.
  • the function of the control valve 505 is as follows. Im de-excited The state of the coil 521 is armature 522 and metering piston 527 by the return spring 524 on the stop 525. The fuel can come from the feed pump 501 through the feed line 511 flow to the atomizer 506. If the control valve 505 When excited by the controller, armature 522 pushes the Dosing piston 527 against the force of spring 524 as far as Direction of delivery until the inlet cross section 531 of the delivery line 511 is closed.
  • the control valve 505 is de-energized and thus the inlet cross-section 531 released in line 511 to atomizer 506.
  • the conical metering piston becomes the throttle valve position 527 over the anchor 522 through the stop 525 more or pressed less far into the bore of the inlet cross section 531.
  • the coupling to the throttle valve 530 is chosen so that with the opening of the throttle valve 530 of the cross section 531 more is opened. In the idle position of the throttle valve 530, a minimal gap remains on cross section 531, which is the Passes the idle amount of fuel to the atomizer 506.
  • the injection pump armature is reset in the Rule using the provided return spring.
  • To great Achieving spray frequencies is the reset time of the armature to keep small. This can be done, for example, by a corresponding Realize the spring force of the return spring. With however, a reduction in the reset time increases the speed of impact of the anchor at the anchor stop. Disadvantageous the associated wear and / or that Bouncing the anchor on the anchor stop, reducing the total working time is enlarged.
  • An object of the invention is therefore in the fall time of the anchor to the rest position to keep small. According to the invention, this goal is achieved by e.g. hydraulic damping of the armature return movement in the reached the last part of this movement.
  • Fig. 9 shows an embodiment of the injection pump, which in essentially has the structure of the injection pump 1 according to FIG. 1.
  • the armature return movement in a blind cylinder bore 11b suitably enters the floor 11a, which on the stop surface 11a is formed for the armature 10 in the housing 8.
  • Anchor 10 are longitudinal grooves 10b formed, the anchor back space 11 with the anchor front space 11 connect.
  • the depth of the blind cylinder bore 11b corresponds approximately the length of the protrusion 10a (dimension Y in Fig. 12).
  • FIG. 10a shows a variant of the hydraulic damping. Also in this embodiment, that of the delivery piston 14 penetrated pump chamber 11 in front of the Koblen 10 connected to the the anchor back adjacent space 11, through holes 10d that in the area of the back of the anchor in a central Overflow channel 10c open.
  • a central pin 8a of a shock absorber 8b protrudes with its cone tip 8c towards the mouth of the overflow channel 10c, a hole 8d passes through in the rear Floor 11a, which opens into a damping space 8e, and ends in Insulation room with a ring 8f, which has a larger diameter has than the hole 8d.
  • One on the floor of the damping room supporting spring 8g presses against the ring 8f and thus the Pin 8a in its rest position (Fig. 10a).
  • a channel 8h connects the insulation space 8e with the rear anchor space 11. Die Channels 10c and 10d allow the armature 10 to be almost resistance-free Movement during the acceleration phase.
  • the damping device 8b is in the acceleration movement of the anchor 10 ineffective, so that no impairment of the Lifting phase.
  • the mouth hits during the return movement the overflow channel to the cone tip 8c and is closed, so that the flow through the channels 10c and 10d is interrupted becomes.
  • the armature 10 presses the pin 8a against the spring force and against the medium in room 8e, which is also in the Room 11 is located and flows out via channel 8h into room 11.
  • the flows are chosen so that optimal damping is guaranteed:
  • a displacement hole can be used according to FIG. 10b 8i be arranged centrally in the pin 8a, through the damping medium can be pressed into the overflow channel 10c.
  • Injector is provided in the return spring 12 of the armature 10 stored energy during the return movement of the anchor 10 to be used to advantage.
  • This can According to the invention take place in that the anchor operated at the reset a pumping device for the Fuel supply to the injector for stabilization of the system and to prevent blistering or as a separate oil pump can be used for engine lubrication can.
  • 11 shows a corresponding exemplary embodiment of a Oil pump 260 connected to fuel injection pump 1.
  • Oil pump 260 is at the rear Bottom 11a of the pump housing 8 connected.
  • Oil pump 260 includes a housing 261 that mates with the housing 8 of the injection pump is connected, and in its pump chamber 261b a pump piston 262 is arranged, the piston rod 262a protrudes into the working space 11 of the armature 10, the Piston 262 is acted upon by a return spring 263 is supported on the housing base 261a in the region of an outlet 264.
  • the pump chamber 261b of the housing is over an oil supply pipe 265 in conjunction with an oil reservoir 266.
  • a check valve 267 is inserted in the oil supply line 265, the structure of which is similar to that of valve 16 in FIG. 1.
  • the oil pump 260 works as follows. If the anchor 10 of the Injection pump 1 during its working stroke towards the Injector 3 moves, the pump chamber 11 in the housing 8th behind the armature 10 increased in volume, whereby the oil pump piston 262 is moved in the direction of the armature 10 and finally by the action of the return spring 263 in it Rest position is transferred.
  • the storage container becomes 266 Via valve 267 oil into the working space 261b of the oil pump 260 sucked in.
  • the armature 10 of the Pump 1 towards its stop 11a becomes the oil pump piston 262 at least on part of the return path of the armature 10 pushed into the oil pump chamber 261b. It is by the Pump pressure closed the valve 267 and there is oil over the Outlet 264 is discharged from the oil pump in the direction of arrow 264a and pressed to the parts of the engine to be supplied with oil.
  • the oil pump 260 can alternatively also be used as a fuel pressure pump are used, the fuel of the valve device 70 can be supplied. It is advantageous that the pump 260 can generate a static pressure in the fuel supply system, vapor bubble formation e.g. when the entire system heats up counteracts.
  • FIGs 12a and 12b show a particularly effective and simple Damping device.
  • the structure of the pump device 1 is the same that shown in Figure 9.
  • the blind cylinder bore 11b after Figure 12a is larger in diameter than the diameter of the cylindrical projection 10a.
  • the projection 10a is from a sealing lip ring projecting in the direction of the blind cylinder bore 11b 10e surrounded by an elastic material which in the blind cylinder bore 11b fits.
  • An insertion slope on the Mouth of the blind cylinder bore 11b facilitates the entry of the Lips the sealing lip ring 10e into the blind cylinder bore 11b.
  • This damping device provides good damping when Stop of the armature 10 and hampers the acceleration stroke of the Anchor not.
  • the elastic damping element 10e with axially parallel protruding sealing lips appear during the return stroke of the armature 10 in the blind cylinder bore 11b and lies against the outside of the inner wall of the blind cylinder bore 11b.
  • the blind cylinder bore 11b according to FIG. 12b has a diameter also larger than the cylindrical projection 10a.
  • a sealing ring 10f made of elastic material sits on the Wall of the blind cylinder bore 11b and points in the area of Mouth inward-facing sealing lips 10g.
  • the elastic Sealing element 10f dips the cylindrical projection 10a a piston-like, the sealing lips 10g due to the outflowing Damping medium against the cylindrical projection 10a be pressed so that a particularly good damping of the armature 10 is reached.
  • injection nozzle e.g. nozzle 3 for the invention Injector.
  • This injector includes a valve seat tube 701 on the other the free lower end of the membrane 704 is arranged, if necessary, a jet-forming pin insert 702 (which is shown in a central hole of membrane 704), a nozzle holder 703, a membrane plate 704 prestressed in the direction of the valve seat, a snap ring 705, a pressure line 706, the valve seat side into an open to the membrane 704 from the membrane covered ring channel 708 opens, a pressure screw 707, one Seal 709 for the nozzle holder 703 and a receptacle 710 for the nozzle holder 703.
  • the valve works almost without moving masses and is through a specially designed metal membrane marked with a fixed flat valve seat works together.
  • the Diaphragm - at the same time because of the preload valve spring - can through suitable, defined and permanent deformation against the Direction of opening (e.g. by arching). This allows fuel atomization at low pressures the nozzle opening through the central hole in membrane 704 is formed, e.g. at low speeds and small Injections (in low part load operation), improved will. Machining the nozzle hole (rounding the edges etc.) is easily possible from both directions.
  • the nozzle requires no lubrication and is therefore for gasoline, Alcohol and its mixtures are particularly suitable. Due to the How it works - it is not downstream of the valve seat Volume available - are comparatively lower in this nozzle Hydrocarbon emissions from the engine are to be expected as with inward opening nozzles.
  • the nozzle consists of a few parts, their manufacture in mass production, Maintenance, checking and parts replacement is therefore very simple and inexpensive.
  • Fuel supply systems for fuel injection systems are used to cool and remove steam bubbles during flushed with fuel during operation. That is, the Fuel feed pump provides a larger amount of fuel ready than is needed by the engine. This extra amount is about a line is returned to the tank and is used for heat dissipation and for the removal of fuel vapor bubbles. Steam bubbles arise in engine operation due to heat and can affect the function disrupt or even prevent the injection system. Another one The still warm engine can be started by steam bubbles difficult or even prevented.
  • a fuel supply device with an inventive Fuel injector is after another Embodiment of the invention therefore without return line to the tank trained, while still heat and steam bubbles are removed can.
  • the invention solves this problem by using a second one Fuel pump, a gas separation chamber with a floating valve and a cooler.
  • This arrangement can be attached directly to the engine and thus avoids pressurized fuel lines outside the engine compartment or the engine capsule. So that is the legal safety regulations are satisfied.
  • a pump 801 sucks the fuel 802 from the tank 803 and guides it through a fuel line 804 to a gas separation chamber 805 to.
  • the gas separation chamber 805 has a float 806, which operates a vent valve 807, which operates on a Ceiling area arranged above the liquid level 805a Gas discharge line 808 acts.
  • a fuel line 809 branched, which is connected to a pump 810 and leads to an injection valve 811 according to the invention, which via a fuel line 812 with the gas separation tank 805 connected above the liquid level 805a in the Gas separation container 805 opens.
  • a pressure regulator is located starting from the injector 811 813 and a cooler 814.
  • the new fuel supply device for an inventive Fuel injector works as follows: Pump 801 sucks fuel 802 from tanks 803 and feeds it to the gas separation chamber 805 until the vent valve 807 is closed by float 806.
  • the pump 810 takes the fuel and at the bottom of the gas separation chamber 805 builds upstream of the 813 pressure regulator for the respective injection system required pressure on.
  • the pump 810 is designed to be used for cooling and flushing of the injector 811 required amount of fuel applies and over the cooler 814 of the gas separation chamber 805 feeds.
  • Now vapor bubbles 805b are placed in the gas separation chamber 805 discharged, the fuel level 805a will decrease, the Float 806 opens the vent valve 807 until the Pump 801 has advanced to the original level 805a.
  • the Vent valve 807 is connected to the air intake pipe 808 of the engine, so that the withdrawn from the air intake pipe Fuel vapors cannot get into the environment unburned.
  • Fig. 17 shows a preferred circuit for driving the Armature excitation coil of the injection pumps according to the invention, the ensures an optimal acceleration of the anchor.
  • Fuel injectors is particularly excitation i.e. the product of the number of turns of the coil and the current of the Current that passes through the coil, determining for the electromechanical Energy conversion. That is, an exclusive one Controlling the current amplitude allows that Switching behavior of the drive magnet regardless of influences the coil heating and a fluctuating supply voltage to be clearly defined. So it bears one Control especially strong in engines fluctuating electrical voltage conditions and the different Temperature conditions bill.
  • FIG. 17 shows a two-point control circuit according to the invention for the current amplitude of the pump drive coil 600 controlling Current.
  • the drive coil 600 is connected to a power transistor 601 connected to a measuring resistor 602 Mass lies.
  • a comparator 603 At the control input of transistor 601, for example to the transistor base, is a comparator 603 with created its exit.
  • the non-inverting input of the Comparator is acted upon by a current setpoint, for example is obtained by means of a microcomputer, and the inverting input of comparator 603 is on the side of the Measuring resistor connected, which is connected to the transistor 601 is.
  • the circuit represents a clocked current source, the Clocking only after reaching the one provided by the microprocessor Current setpoint.
  • the energy and therefore the Quantity control of the pump device 1 can be done with this circuit in combination of the duration and / or amount of that of the microprocessor provided reference voltage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Electromagnetic Pumps, Or The Like (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Steroid Compounds (AREA)

Claims (39)

  1. Dispositif d'injection de carburant, qui fonctionne suivant le principe de l'accumulateur d'énergie à corps solide, dans lequel un élément d'induit (10) guidé dans le boítier de pompe d'une pompe à piston alternatif (1) entraínée par un électro-aimant est accéléré pratiquement sans résistance, dans lequel l'élément d'induit (10) emmagasine de l'énergie cinétique et vient percuter un élément de piston (14) de telle sorte qu'un coup de bélier est créé dans le carburant présent dans une chambre de pression située en amont de l'élément de piston (14), tandis que l'énergie cinétique emmagasinée dans l'élément d'induit (10) est transférée par l'intermédiaire de l'élément de piston (14) au carburant présent dans la chambre de pression, et dans lequel le coup de bélier est utilisé pour éjecter le carburant à travers un dispositif (3) à gicleur d'injection, le dispositif à gicleur d'injection (3) et la pompe d'injection (1) étant configurés en forme de module unitaire,
    caractérisé par un cylindre d'enveloppe (300) situé à l'intérieur d'un boítier commun, qui est divisé par un élément annulaire non magnétique (301) en une partie qui entoure l'induit (10) de la pompe d'injection, de sorte qu'une force puisse être exercée sur l'induit (10) par une bobine (9) disposée à la périphérie extérieure du cylindre d'enveloppe (300).
  2. Dispositif selon la revendication 1, caractérisé en ce que les deux régions de boítier du cylindre d'enveloppe (300) sont reliées de manière étanche au fluide l'une par rapport à l'autre dans la région de l'élément de bague (301), et la bobine (9) recouvre l'élément de bague (301) dans la direction axiale.
  3. Dispositif selon les revendications 1 et/ou 2, caractérisé par une pièce d'enveloppe cylindrique (302) qui entoure le cylindre d'enveloppe (300) et entoure la bobine (9) par l'extérieur.
  4. Dispositif selon une ou plusieurs des revendications 1 à 3, caractérisé en ce qu'une pièce de raccordement (303), qui présente un alésage de passage (305) servant de conduit d'alimentation en carburant, est vissée dans le cylindre d'enveloppe (300) à son extrémité située du côté du réservoir.
  5. Dispositif selon une ou plusieurs des revendications 1 à 4, caractérisé en ce que le dispositif à gicleur d'injection (3) est inséré dans un filet à l'extrémité axiale du cylindre d'enveloppe (300) située du côté sous pression.
  6. Dispositif selon une ou plusieurs des revendications 1 à 5, caractérisé en ce que, entre le dispositif à gicleur (3) et la pièce de raccordement (303), il est prévu dans le cylindre d'enveloppe (300) un passage présentant des régions de diamètres différents, dans lequel le passage présente sa région de plus grand diamètre en position contiguë à l'endroit de la pièce de raccordement (303), cette région formant la chambre de travail (306) de l'induit (10) de la pompe d'injection (1).
  7. Dispositif selon la revendication 6, caractérisé en ce que, du côté du réservoir, la chambre de travail (306) est délimitée par une surface annulaire de fond (11a) qui sert de surface de butée pour l'induit (10) lorsque celui-ci est repoussé dans sa position de repos par le ressort (12), dans lequel, en direction du réservoir, un élargissement du diamètre de l'alésage (305) suit la surface de fond (11a), élargissement dans lequel est logé le clapet d'alimentation (16).
  8. Dispositif selon les revendications 6 et/ou 7, caractérisé en ce que l'induit (10) est traversé par un alésage (309) qui est aligné axialement avec l'alésage (305) de la pièce de raccordement (303), l'induit présentant dans sa région d'extrémité située du côté de la pression une zone de plus petit diamètre, le ressort de rappel (12) de l'induit s'appuie sur l'induit (10) par la surface annulaire qui est formée dans la région de l'épaulement entre la région de plus petit diamètre et la région de grand diamètre de l'induit (10), le ressort (12) s'appuie à son autre extrémité sur une surface annulaire qui est formée dans le cylindre d'enveloppe (300) sur une bague (300a) débordant vers l'intérieur, située entre la chambre de travail (306) de plus grand diamètre et la chambre de pression (11) de plus petit diamètre, qui suit en direction du dispositif d'injection (3), du passage du cylindre d'enveloppe (300).
  9. Dispositif selon la revendication 8, caractérisé en ce que la région d'extrémité de diamètre réduit de l'induit (10) est dimensionnée de manière à pouvoir traverser la bague (300a).
  10. Dispositif selon la revendication 9, caractérisé en ce que le piston de refoulement (14) est logé dans la chambre de pression (11), séparé de l'induit (10), est configuré comme corps cylindrique creux, et présente une chambre cylindrique creuse (14e) qui communique par des alésages axiaux (312, 313) avec la chambre de pression (11), dans lequel un clapet de pression constitué d'un plateau de clapet (310) et d'un ressort (311) sollicitant le plateau de clapet (310) est situé dans la chambre creuse (14e).
  11. Dispositif selon l'une ou plusieurs des revendications 1 à 10, caractérisé en ce que le dispositif à gicleur d'injection (3) est inséré frontalement dans le cylindre d'enveloppe (300) et comporte un corps vissé (314) en forme de bouchon traversé par un alésage central (314a) que traverse la tige de clapet (315) d'un poussoir de clapet (317) dont le plateau de clapet (316) ferme l'entrée de l'alésage (314a).
  12. Dispositif selon la revendication 11, caractérisé en ce qu'un ressort (318) qui s'appuie d'un côté sur une surface frontale annulaire intérieure du bouchon (314) et d'autre part sur un ressort à disques (315a) disposé à l'extrémité intérieure de la tige de clapet (315), agit sur le poussoir de clapet (317).
  13. Dispositif selon la revendication 12, caractérisé en ce que la tige de clapet (315) du gicleur déborde dans la chambre de pression (11) du cylindre d'enveloppe (300) dans laquelle le piston de refoulement (14) est repoussé contre la bague (300a) par le ressort (320) s'appuyant sur le bouchon (314), où sa surface frontale tournée vers l'induit repose contre une surface de butée (321) de la bague (300a).
  14. Dispositif selon l'une ou plusieurs des revendications 1 à 13, caractérisé en ce que la tige de clapet (315) traverse l'alésage (313) et déborde dans la chambre intérieure (14e) du piston de refoulement (14), en liaison avec quoi une bague (322) qui forme dans la chambre (14e) un appui pour le ressort (311) du clapet de pression (311, 310) est formée à l'extrémité de la tige de clapet (315).
  15. Dispositif selon la revendication 14, caractérisé en ce que des rainures (313a) sont formées dans le bord de l'alésage (313).
  16. Dispositif selon l'une ou plusieurs des revendications 1 à 15, caractérisé par un dispositif auxiliaire de démarrage qui présente un clapet de commande raccordé à un pulvérisateur (506) du moteur (500), alimenté en carburant provenant du réservoir (502) du carburant, dont la résistance à l'écoulement, avec celle du pulvérisateur (506) est telle que, même sans apport d'énergie électrique au dispositif d'injection (504), les besoins en carburant nécessaire pour le démarrage peuvent être couverts par la pression délivrée par une pompe (501) de précompression.
  17. Dispositif selon la revendication 16, caractérisé en ce qu'en aval de la pompe (501) de précompression du carburant dont le côté aspiration est relié au réservoir (502) de carburant, il est prévu une dérivation de l'alimentation en carburant du moteur, en liaison avec quoi, en l'absence de courant, un dispositif d'injection (504) raccordé à une génératrice (503), qui est construit selon l'invention, en particulier selon un des modes de réalisation de l'invention, est inactif et le clapet de commande (505) actionnée par exemple électromagnétiquement, est ouvert pour amener du carburant au pulvérisateur (506) prévu sur le moteur (500).
  18. Dispositif selon les revendications 16 et/ou 17, caractérisé en ce qu'une pompe manuelle (509) prévue sur le moteur est utilisée en supplément lors du démarrage, pour l'apport direct de carburant au moteur par le pulvérisateur (506), laquelle pompe manuelle est disposée dans le conduit (511) reliant la pompe (501) au clapet de commande (505), en liaison avec quoi la commande du clapet de commande (505) s'effectue par le dispositif d'injection (507) par l'intermédiaire d'un conduit de commande (510).
  19. Dispositif selon la revendication 16, caractérisé en ce que le clapet de commande (505) est disposé dans le conduit d'injection (511) entre le dispositif d'injection (504) et le gicleur d'injection (508).
  20. Dispositif selon la revendication 19, caractérisé par un commutateur prévu dans le conduit reliant la commande d'injection (507) au clapet de commande (505).
  21. Dispositif selon les revendications 19 et/ou 20, caractérisé en ce que le dispositif auxiliaire de démarrage selon l'invention est utilisé pour un fonctionnement de secours du moteur, un clapet de dosage (505) réalisant une modification du débit de carburant.
  22. Dispositif selon l'une ou plusieurs des revendications 16 à 21, caractérisé en ce que le clapet de dosage (505) présente un boítier (520) dans lequel est insérée une bobine (521) qui sert à l'entraínement d'un induit (522) qui est monté de manière à pouvoir coulisser dans un alésage (523) du boítier (520) et qui, dans sa position de repos, est repoussé par un ressort de rappel (524) contre une butée (525) ajustable disposée dans le boítier (520) et à laquelle un câble de commande (526) est raccordé à l'extérieur du boítier, en liaison avec quoi des rainures longitudinales (527) sont formées à la périphérie de l'induit (522) et permettent une communication pour le carburant présent dans l'alésage (523), entre le côté avant et le côté arrière de l'induit (522), et en liaison avec quoi la butée (525) configurée en forme de piston traversent la paroi frontale (520b) du boítier et est précontrainte dans le boítier (520) vers la paroi frontale (520b) du boítier au moyen d'un ressort (528), et en liaison avec quoi un piston de dosage (527) est réalisé d'une seule pièce avec la face frontale de l'induit (522) située en face de la butée (525), et en liaison avec quoi cette face frontale est en outre sollicitée par le ressort de rappel (524) qui s'appuie par son autre extrémité contre la paroi frontale (520a) du boítier (520), et en liaison avec quoi le piston de dosage (527) déborde par une extrémité conique en pointe convergente dans le conduit de refoulement (511) duquel part en outre un conduit de raccordement (511a) au pulvérisateur (506), et en liaison avec quoi le câble de commande (526) qui est raccordé à la butée (525) précontrainte contre l'induit (522) par une force élastique, est relié au clapet d'étranglement (530).
  23. Dispositif selon l'une ou plusieurs des revendications 1 à 22, caractérisé par un dispositif d'amortissement hydraulique de l'élément d'induit (10) de la pompe à piston alternatif.
  24. Dispositif selon la revendication 23, caractérisé en ce que le dispositif d'amortissement hydraulique est constitué à la manière d'un agencement à cylindre et piston, en liaison avec quoi une saillie cylindrique (10a) est formée au centre de l'induit (10) et s'ajuste au cours de la dernière partie du déplacement de rappel de l'induit dans un alésage cylindrique borgne (11b) prévu dans le fond (11a) du cylindre, en liaison avec quoi des rainures (10b) s'étendant dans la direction longitudinale sont disposées dans l'induit (10) et relient dans le cylindre de pompe la chambre située en arrière de l'induit à la chambre située en avant de l'induit.
  25. Dispositif selon la revendication 23, caractérisé en ce que la chambre de pompe (11) traversée par le piston de refoulement (14) est raccordée en avant du piston (10) à la chambre (11) contiguë au côté arrière de l'induit par des alésages (10d) qui débouchent dans un canal central de débordement (10c) dans la région du côté arrière de l'induit, en liaison avec quoi une tige centrale (8a) d'un amortisseur de chocs (8b) déborde par une pointe conique (8c) en direction de l'embouchure du canal de débordement (10c).
  26. Dispositif selon la revendication 25, caractérisé en ce que du côté arrière, la tige centrale (8a) traverse un trou (8d) prévu dans le fond (11a), lequel trou débouche dans une chambre d'amortissement (8e), en liaison avec quoi la tige (8a) se termine dans la chambre d'amortissement par une bague (8f) dont le diamètre est supérieur à celui du trou (8d), en liaison avec quoi un ressort (8g) qui repousse la bague (8f) s'appuie au fond de la chambre d'amortissement, et un canal (8h) relie la chambre d'amortissement (8e) à la chambre (11) située en arrière de l'induit.
  27. Dispositif selon la revendication 25, caractérisé en ce qu'un alésage central de refoulement (8i) traverse la tige (8a), grâce auquel le fluide d'amortissement peut être refoulé dans le canal de débordement (10c).
  28. Dispositif selon la revendication 23, caractérisé en ce que, lors de son déplacement de rappel, l'induit (10) dessert un dispositif de pompage qui constitue en même temps un dispositif d'amortissement pour l'induit (10).
  29. Dispositif selon la revendication 28, caractérisé en ce qu'une pompe à huile (260) est raccordée au fond arrière (11a) du boítier de pompe (8), présente un boítier (261) dans la chambre de pompe (261b) duquel est disposé un piston de pompe (262), dont la tige de piston (262a) déborde dans la chambre de travail (11) de l'induit (10), en liaison avec quoi le piston (262) est sollicité par un ressort de rappel (263) qui s'appuie contre le fond (261a) du boítier dans la région d'un orifice d'évacuation (264).
  30. Dispositif selon la revendication 29, caractérisé en ce que la chambre de pompe (261b) communique avec un réservoir d'huile (266) par un conduit d'amenée d'huile (265), en liaison avec quoi un clapet anti-retour (267) est disposé dans le conduit d'amenée d'huile (265).
  31. Dispositif selon les revendications 23 et/ou 24, caractérisé en ce que l'alésage cylindrique borgne (11b) présente un diamètre supérieur au diamètre de la saillie cylindrique (10a), et la saillie cylindrique (10a) ou l'alésage cylindrique borgne (11b) présentent une bague (10e) ou (10d) à lèvres d'étanchéité, en liaison avec quoi les bagues à lèvres d'étanchéité forment le joint d'étanchéité de piston pour la saillie (10a).
  32. Dispositif selon l'une ou plusieurs des revendications 1 à 31, caractérisé par un gicleur d'injection doté d'un tube de siège de clapet (701) doté à une extrémité d'un canal annulaire (708), d'une plaque à membrane (704) à trou central précontrainte en direction du siège de clapet, qui recouvre le canal annulaire (708), éventuellement avec une garniture en tourillon (702) dans le trou de la membrane (704), une bague de ressort (705) et un conduit sous pression (706).
  33. Dispositif selon l'une ou plusieurs des revendications 1 à 32, caractérisé par un dispositif d'alimentation en carburant sans retour vers le réservoir, en liaison avec quoi une deuxième pompe à carburant, une chambre de séparation de gaz dotée d'un clapet à flotteur et un refroidisseur sont utilisés.
  34. Dispositif selon la revendication 33, caractérisé par une chambre (805) de séparation des gaz dans laquelle le carburant (802) provenant d'un réservoir (803) est pompé au moyen d'une pompe (801) par l'intermédiaire d'un conduit (804) par lequel du carburant est amené à un clapet d'injection (811) au moyen d'une pompe (810), par l'intermédiaire d'un conduit à carburant (809), en liaison avec quoi un conduit (812) relie le clapet d'injection (811) à la chambre (805) de séparation de gaz, conduit dans lequel un régulateur de pression (813) et un refroidisseur (814) sont disposés, en liaison avec quoi un flotteur (806) qui actionne un clapet d'aération (807) situé dans un conduit d'évacuation (808) qui débouche dans la chambre (805) de séparation des gaz, est prévu dans le séparateur des gaz (805).
  35. Dispositif selon la revendication 33, caractérisé en ce que le conduit à carburant (812) débouche dans la chambre (805) de séparation des gaz au-dessus du niveau de liquide (805a).
  36. Dispositif selon les revendications 34 et/ou 35, caractérisé en ce que le conduit d'aération (808) débouche dans la chambre (805) de séparation des gaz au-dessus du niveau du liquide (805a).
  37. Dispositif selon l'une ou plusieurs des revendications 33 à 36, caractérisé en ce que le conduit à carburant (804) débouche dans la chambre (805) de séparation des gaz au-dessus du niveau du liquide (805a).
  38. Dispositif selon l'une ou plusieurs des revendications 33 à 37, caractérisé en ce que, jusqu'au réservoir (803), tous les dispositifs de l'installation d'injection de carburant sont disposés dans l'enceinte (815) du moteur.
  39. Dispositif selon l'une ou plusieurs des revendications 1 à 38, caractérisé par un circuit de commande de la bobine (9, 600) d'excitation de l'induit, qui est raccordée à un transistor de puissance (601) qui est raccordé à la masse par l'intermédiaire d'une résistance de mesure (602), la sortie d'un comparateur (603) étant appliquée à l'entrée de commande du transistor (601), par exemple à la base du transistor, et une valeur de consigne du courant, qui est par exemple définie au moyen d'un micro-ordinateur, étant appliquée à l'entrée non inversée du comparateur (603), et l'entrée inversée du comparateur (603) étant raccordée à la borne de la résistance de mesure qui est raccordée au transistor (601).
EP96101218A 1992-03-04 1993-03-04 Dispositif d'injection de combustible suivant le principe de l'accumulateur d'énergie solide, pour moteurs à combustion interne Expired - Lifetime EP0725215B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4206817 1992-03-04
DE4206817A DE4206817C2 (de) 1991-10-07 1992-03-04 Kraftstoff-Einspritzvorrichtung nach dem Festkörper-Energiespeicher-Prinzip für Brennkraftmaschinen
EP93905295A EP0630442B1 (fr) 1992-03-04 1993-03-04 Dispositif d'injection de carburant fonctionnant selon le principe de l'accumulateur d'energie a solide, pour moteurs a combustion interne

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP93905295A Division EP0630442B1 (fr) 1992-03-04 1993-03-04 Dispositif d'injection de carburant fonctionnant selon le principe de l'accumulateur d'energie a solide, pour moteurs a combustion interne
EP93905295.7 Division 1993-03-04

Publications (3)

Publication Number Publication Date
EP0725215A2 EP0725215A2 (fr) 1996-08-07
EP0725215A3 EP0725215A3 (fr) 1996-08-21
EP0725215B1 true EP0725215B1 (fr) 1998-08-05

Family

ID=6453209

Family Applications (5)

Application Number Title Priority Date Filing Date
EP93905295A Expired - Lifetime EP0630442B1 (fr) 1992-03-04 1993-03-04 Dispositif d'injection de carburant fonctionnant selon le principe de l'accumulateur d'energie a solide, pour moteurs a combustion interne
EP93905298A Expired - Lifetime EP0629264B1 (fr) 1992-03-04 1993-03-04 Pompe a piston alternatif
EP96109438A Expired - Lifetime EP0733798B1 (fr) 1992-03-04 1993-03-04 Dispositif d'injection de combustible suivant le principe de l'accumulateur d'énergie solide, pour moteurs à combustion interne
EP96101218A Expired - Lifetime EP0725215B1 (fr) 1992-03-04 1993-03-04 Dispositif d'injection de combustible suivant le principe de l'accumulateur d'énergie solide, pour moteurs à combustion interne
EP93905299A Expired - Lifetime EP0629265B1 (fr) 1992-03-04 1993-03-04 Dispositif d'injection de carburant fonctionnant selon le principe de l'accumulateur d'energie a solide pour moteurs a combustion interne

Family Applications Before (3)

Application Number Title Priority Date Filing Date
EP93905295A Expired - Lifetime EP0630442B1 (fr) 1992-03-04 1993-03-04 Dispositif d'injection de carburant fonctionnant selon le principe de l'accumulateur d'energie a solide, pour moteurs a combustion interne
EP93905298A Expired - Lifetime EP0629264B1 (fr) 1992-03-04 1993-03-04 Pompe a piston alternatif
EP96109438A Expired - Lifetime EP0733798B1 (fr) 1992-03-04 1993-03-04 Dispositif d'injection de combustible suivant le principe de l'accumulateur d'énergie solide, pour moteurs à combustion interne

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP93905299A Expired - Lifetime EP0629265B1 (fr) 1992-03-04 1993-03-04 Dispositif d'injection de carburant fonctionnant selon le principe de l'accumulateur d'energie a solide pour moteurs a combustion interne

Country Status (9)

Country Link
US (3) US5520154A (fr)
EP (5) EP0630442B1 (fr)
JP (8) JP2626678B2 (fr)
AT (5) ATE140768T1 (fr)
AU (5) AU664739B2 (fr)
CA (3) CA2127800C (fr)
DE (5) DE59304903D1 (fr)
HK (1) HK1013676A1 (fr)
WO (3) WO1993018297A1 (fr)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE140768T1 (de) * 1992-03-04 1996-08-15 Ficht Gmbh & Co Kg Hubkolbenpumpe
FR2713717B1 (fr) * 1993-12-07 1996-01-26 Rahban Thierry Pompe à actionnement électromagnétique à collision élastique de l'équipage mobile.
DE4421145A1 (de) * 1994-06-16 1995-12-21 Ficht Gmbh Ölbrenner
US5630401A (en) * 1994-07-18 1997-05-20 Outboard Marine Corporation Combined fuel injection pump and nozzle
US5562428A (en) * 1995-04-07 1996-10-08 Outboard Marine Corporation Fuel injection pump having an adjustable inlet poppet valve
DE19515775C2 (de) * 1995-04-28 1998-08-06 Ficht Gmbh Verfahren zum Ansteuern einer Erregerspule einer elektromagnetisch angetriebenen Hubkolbenpumpe
DE19515774C2 (de) * 1995-04-28 1999-04-01 Ficht Gmbh & Co Kg Kraftstoff-Einspritzvorrichtung für Brennkraftmaschinen
DE19515782A1 (de) * 1995-04-28 1996-10-31 Ficht Gmbh Kraftstoff-Einspritzvorrichtung für Brennkraftmaschinen
JPH11506513A (ja) * 1995-04-28 1999-06-08 フィヒト ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コー． カーゲー 内燃機関用燃料噴射装置
US5779454A (en) * 1995-07-25 1998-07-14 Ficht Gmbh & Co. Kg Combined pressure surge fuel pump and nozzle assembly
US5687050A (en) * 1995-07-25 1997-11-11 Ficht Gmbh Electronic control circuit for an internal combustion engine
DE19527550A1 (de) * 1995-07-27 1997-01-30 Ficht Gmbh Verfahren zum Steuern des Zündzeitpunktes bei Brennkraftmaschinen
DE19541508A1 (de) * 1995-11-08 1997-05-15 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
FR2748783B1 (fr) * 1996-05-17 1998-08-14 Melchior Jean F Dispositif d'injection de combustible liquide pour moteur a combustion interne
US6161525A (en) * 1996-08-30 2000-12-19 Ficht Gmbh & Co. Kg Liquid gas engine
DE19643886C2 (de) * 1996-10-30 2002-10-17 Ficht Gmbh & Co Kg Verfahren zum Betreiben einer Brennkraftmaschine
US6280867B1 (en) 1997-12-05 2001-08-28 Griff Consulting, Inc. Apparatus for pumping a fluid in a fuel cell system
DE19845441C2 (de) * 1998-10-02 2003-01-16 Ficht Gmbh & Co Kg Verfahren zum elektronischen Trimmen einer Einspritzvorrichtung
DE19860573A1 (de) * 1998-12-29 2000-07-06 Eberspaecher J Gmbh & Co Brennstoffdosierpumpe für ein Heizgerät, insbesondere für einen Zuheizer oder eine Standheizung eines Kraftfahrzeuges
DE19918984A1 (de) * 1999-04-27 2000-11-02 Deutz Ag Kraftstoffversorgungssystem einer Brennkraftmaschine
US6283095B1 (en) * 1999-12-16 2001-09-04 Bombardier Motor Corporation Of America Quick start fuel injection apparatus and method
DE10002721A1 (de) * 2000-01-22 2001-08-02 Bosch Gmbh Robert Ventil zum Steuern von Flüssigkeiten
US6966760B1 (en) * 2000-03-17 2005-11-22 Brp Us Inc. Reciprocating fluid pump employing reversing polarity motor
US6364281B1 (en) * 2000-03-22 2002-04-02 Eaton Corporation Method of energizing solenoid operated valves
US6295972B1 (en) * 2000-03-30 2001-10-02 Bombardier Motor Corporation Of America Fuel delivery using multiple fluid delivery assemblies per combustion chamber
US6792968B1 (en) * 2000-05-30 2004-09-21 Robert H. Breeden Pump assembly and method
EP1744052A3 (fr) * 2000-08-02 2007-02-14 Mikuni Corporation Dipositif d'injection de carburant à commande électronique
JP4431268B2 (ja) * 2000-11-17 2010-03-10 株式会社ミクニ 電子制御燃料噴射装置
CN1133810C (zh) * 2001-02-16 2004-01-07 郗大光 电动燃油喷射装置
JP2003003889A (ja) * 2001-06-20 2003-01-08 Denso Corp 内燃機関の燃料供給装置
US7100578B2 (en) * 2001-11-29 2006-09-05 Mikuni Corporation Method for driving fuel injection pump
US6693787B2 (en) * 2002-03-14 2004-02-17 Ford Global Technologies, Llc Control algorithm for soft-landing in electromechanical actuators
RU2362039C2 (ru) * 2005-02-02 2009-07-20 БиАрПи ЮЭс ИНК. Способ управления насосным узлом
DE102006003484A1 (de) * 2005-03-16 2006-09-21 Robert Bosch Gmbh Vorrichtung zum Einspritzen von Kraftstoff
US20070075285A1 (en) * 2005-10-05 2007-04-05 Lovejoy Kim A Linear electrical drive actuator apparatus with tandem fail safe hydraulic override for steam turbine valve position control
US7857281B2 (en) * 2006-06-26 2010-12-28 Incova Technologies, Inc. Electrohydraulic valve control circuit with magnetic hysteresis compensation
DE102007037869A1 (de) * 2007-08-10 2009-02-12 Robert Bosch Gmbh Aktuator für eine Brennkraftmaschine sowie Verfahren zum Betreiben eines Aktuators
DE102007039794A1 (de) 2007-08-23 2009-03-12 Eberspächer Unna GmbH & Co. KG Dosiersystem und Verfahren zum Dosieren eines flüssigen Reduktionsmittels in ein Abgassystem einer Brennkraftmaschine
DE102008007349B4 (de) * 2008-02-04 2021-07-08 Robert Bosch Gmbh Kompakte Einspritzvorrichtung mit reduzierter Dampfblasenneigung
DE102009012688B3 (de) * 2009-03-11 2010-07-22 Continental Automotive Gmbh Ventil zum Einblasen von Gas
DE102009014444A1 (de) * 2009-03-23 2010-10-07 Continental Automotive Gmbh Tankentlüftungsvorrichtung für eine aufgeladene Brennkraftmaschine und zugehöriges Steuerverfahren
DE102011077059A1 (de) * 2011-06-07 2012-12-13 Robert Bosch Gmbh Kraftstoffeinspritzventil
DE102011078159A1 (de) * 2011-06-28 2013-01-03 Robert Bosch Gmbh Kraftstoffeinspritzventil
AU2013334273B2 (en) 2012-10-25 2016-03-10 Briggs & Stratton, Llc Fuel injection system
US20170030298A1 (en) * 2015-07-31 2017-02-02 Briggs & Stratton Corporation Atomizing fuel delivery system
JP6245238B2 (ja) * 2015-09-11 2017-12-13 トヨタ自動車株式会社 燃料ポンプ
DE102015014349B4 (de) * 2015-11-05 2017-06-14 L'orange Gmbh Druckstoßbetätigter Injektor
DE102015014350B4 (de) * 2015-11-05 2017-06-14 L'orange Gmbh Druckbetätigter Injektor
US10030961B2 (en) 2015-11-27 2018-07-24 General Electric Company Gap measuring device
CN109312735A (zh) 2016-05-12 2019-02-05 布里格斯斯特拉顿公司 燃料输送喷射器
US10859073B2 (en) 2016-07-27 2020-12-08 Briggs & Stratton, Llc Reciprocating pump injector
US10947940B2 (en) 2017-03-28 2021-03-16 Briggs & Stratton, Llc Fuel delivery system
DE102018200715A1 (de) * 2018-01-17 2019-07-18 Robert Bosch Gmbh Kraftstofffördereinrichtung für kryogene Kraftstoffe
DE102018211338A1 (de) * 2018-07-10 2020-01-16 Robert Bosch Gmbh Kraftstofffördereinrichtung für kryogene Kraftstoffe und Verfahren zum Betreiben einer Kraftstofffördereinrichtung
US11668270B2 (en) 2018-10-12 2023-06-06 Briggs & Stratton, Llc Electronic fuel injection module
KR102572903B1 (ko) * 2021-01-07 2023-08-30 주식회사 현대케피코 고압 연료펌프의 유량제어밸브 구조

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE213472C (fr) *
CH328209A (de) * 1953-12-23 1958-02-28 Cav Ltd Brennstoffeinspritzpumpe für Brennkraftmaschinen
FR1150971A (fr) * 1956-05-24 1958-01-22 Perfectionnements apportés à des dispositifs d'injection de combustible
US2881749A (en) * 1956-11-13 1959-04-14 Studebaker Packard Corp Combination accumulator and starting pump for fuel injection system
FR1183662A (fr) * 1957-10-01 1959-07-10 Pompe d'injection électromagnétique pour moteurs à combustion interne
DE1278792B (de) * 1963-12-05 1968-09-26 Vyzk Ustav Prislusenstvi Motor Kraftstoffeinspritzpumpe mit Pumpen- und Verteilerrotor und Regelung der Einspritzmenge durch einen Ausweichkolben
DE2306875A1 (de) * 1973-02-13 1974-08-15 Bosch Gmbh Robert Elektromagnetische dosierpumpe
DE2307435A1 (de) * 1973-02-15 1974-08-22 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung fuer brennkraftmaschinen
JPS51120321A (en) * 1975-04-14 1976-10-21 Yanmar Diesel Engine Co Ltd Fuel injection pump for diesel engine
DD120514A1 (fr) * 1975-06-09 1976-06-12
CH597596A5 (fr) * 1975-06-27 1978-04-14 Hoffmann La Roche
GB1574128A (en) * 1976-01-20 1980-09-03 Lucas Industries Ltd Fuel pump injector
GB1574132A (en) * 1976-03-20 1980-09-03 Lucas Industries Ltd Fuel injection pumps
DE2634282C2 (de) * 1976-07-28 1978-04-13 Mannesmann Ag, 4000 Duesseldorf Verfahren zum kontinuierlichen Einbringen von Zusatzmitteln in ein mit flüssigem Metall gefülltes Gefäß
DE2720144A1 (de) * 1977-05-05 1978-11-16 Volkswagenwerk Ag Einspritzvorrichtung, insbesondere fuer eine brennkraftmaschine
DE2809122A1 (de) * 1978-03-03 1979-09-06 Bosch Gmbh Robert Einspritzvorrichtung fuer eine brennkraftmaschine
NL7810629A (nl) * 1978-10-25 1980-04-29 Holec Nv Inrichting voor het afgeven van brandstof aan een verbrandingsmotor.
US4355620A (en) * 1979-02-08 1982-10-26 Lucas Industries Limited Fuel system for an internal combustion engine
JPS5749059A (en) * 1980-09-08 1982-03-20 Toshiba Corp Driving circuit of injector
US4327695A (en) * 1980-12-22 1982-05-04 Ford Motor Company Unit fuel injector assembly with feedback control
JPS5851233A (ja) * 1981-09-21 1983-03-25 Hitachi Ltd 燃料噴射弁駆動回路
DE3237258C1 (de) * 1982-10-08 1983-12-22 Daimler-Benz Ag, 7000 Stuttgart Elektrisch vorgesteuerte Ventilanordnung
DD213472B5 (de) * 1983-02-04 1999-12-30 Ficht Gmbh Pumpe-Duese-System fuer Brennkraftmaschinen
DE3329734A1 (de) * 1983-08-17 1985-03-07 Mannesmann Rexroth GmbH, 8770 Lohr Proportionalmagnet
JPS6062658A (ja) * 1983-09-16 1985-04-10 Mitsubishi Heavy Ind Ltd ジャ−ク式燃料ポンプの噴射開始タイミング変更装置
GB8402470D0 (en) * 1984-01-31 1984-03-07 Lucas Ind Plc Drive circuits
DE3567506D1 (en) * 1984-08-14 1989-02-16 Ail Corp Fuel delivery control system
NL8501647A (nl) * 1985-06-06 1987-01-02 Volvo Car Bv Brandstofinjector.
JPS61286540A (ja) * 1985-06-14 1986-12-17 Nippon Denso Co Ltd 燃料噴射制御装置
JPS62107265A (ja) * 1985-11-02 1987-05-18 Nippon Soken Inc 電歪式油圧制御弁
JP2546231B2 (ja) * 1986-03-12 1996-10-23 日本電装株式会社 圧電素子の駆動装置
FR2607278B1 (fr) * 1986-11-26 1989-06-23 Bendix Electronics Sa Circuit integrable de regulation de courant dans une charge inductive et son application a la commande de bobine d'allumage d'un moteur a combustion interne
DE3701872A1 (de) * 1987-01-23 1988-08-04 Pierburg Gmbh Elektromagnetisch getaktetes einspritzventil fuer gemischverdichtende brennkraftmaschinen
GB8703419D0 (en) * 1987-02-13 1987-03-18 Lucas Ind Plc Fuel injection pump
EP0309753A1 (fr) * 1987-09-30 1989-04-05 Siemens Aktiengesellschaft Procédé de surveillance de charge inductive
NZ222499A (en) * 1987-11-10 1990-08-28 Nz Government Fuel injector pump: flow rate controlled by controlling relative phase of reciprocating piston pumps
JP2568603B2 (ja) * 1988-01-11 1997-01-08 日産自動車株式会社 燃料噴射装置
DE3903313A1 (de) * 1989-02-04 1990-08-09 Bosch Gmbh Robert Speicherkraftstoffeinspritzvorrichtung
JPH03107568A (ja) * 1989-09-22 1991-05-07 Aisin Seiki Co Ltd 燃料噴射装置
DE4106015A1 (de) * 1991-02-26 1992-08-27 Ficht Gmbh Druckstoss-kraftstoffeinspritzung fuer verbrennungsmotoren
ATE140768T1 (de) * 1992-03-04 1996-08-15 Ficht Gmbh & Co Kg Hubkolbenpumpe
US5437255A (en) * 1994-03-15 1995-08-01 Sadley; Mark L. Fuel injection sytem employing solid-state injectors for liquid fueled combustion engines

Also Published As

Publication number Publication date
JP3330544B2 (ja) 2002-09-30
AU3790995A (en) 1996-03-07
US5520154A (en) 1996-05-28
JP2626677B2 (ja) 1997-07-02
JPH09170519A (ja) 1997-06-30
WO1993018297A1 (fr) 1993-09-16
AU679648B2 (en) 1997-07-03
AU681827B2 (en) 1997-09-04
AU3630593A (en) 1993-10-05
DE59310057D1 (de) 2000-07-13
CA2127800A1 (fr) 1993-09-16
WO1993018296A1 (fr) 1993-09-16
CA2127799A1 (fr) 1993-09-16
JP2867334B2 (ja) 1999-03-08
AU667345B2 (en) 1996-03-21
JPH09177636A (ja) 1997-07-11
EP0629265B1 (fr) 1997-06-04
JP2002089413A (ja) 2002-03-27
EP0733798A2 (fr) 1996-09-25
ATE154100T1 (de) 1997-06-15
EP0630442B1 (fr) 1996-12-27
EP0629265A1 (fr) 1994-12-21
ATE193753T1 (de) 2000-06-15
WO1993018290A1 (fr) 1993-09-16
DE59304903D1 (de) 1997-02-06
JPH11107883A (ja) 1999-04-20
JPH11101169A (ja) 1999-04-13
EP0629264A1 (fr) 1994-12-21
ATE146851T1 (de) 1997-01-15
EP0725215A2 (fr) 1996-08-07
CA2127801C (fr) 1999-06-15
CA2127799C (fr) 1999-06-29
EP0629264B1 (fr) 1996-07-24
AU3630793A (en) 1993-10-05
JPH07504476A (ja) 1995-05-18
JP2626678B2 (ja) 1997-07-02
JPH07504954A (ja) 1995-06-01
AU5627396A (en) 1996-10-03
DE59308851D1 (de) 1998-09-10
JP3282711B2 (ja) 2002-05-20
EP0733798B1 (fr) 2000-06-07
CA2127800C (fr) 1999-06-29
JPH07504475A (ja) 1995-05-18
HK1013676A1 (en) 1999-09-03
DE59306679D1 (de) 1997-07-10
EP0725215A3 (fr) 1996-08-21
EP0733798A3 (fr) 1996-12-11
US5469828A (en) 1995-11-28
EP0630442A1 (fr) 1994-12-28
US6188561B1 (en) 2001-02-13
DE59303326D1 (de) 1996-08-29
AU671100B2 (en) 1996-08-15
AU664739B2 (en) 1995-11-30
CA2127801A1 (fr) 1993-09-16
AU3630893A (en) 1993-10-05
ATE169376T1 (de) 1998-08-15
ATE140768T1 (de) 1996-08-15

Similar Documents

Publication Publication Date Title
EP0725215B1 (fr) Dispositif d'injection de combustible suivant le principe de l'accumulateur d'énergie solide, pour moteurs à combustion interne
EP0685646B1 (fr) Dispositif d'injection de combustible pour moteurs à combustion interne
DE69217256T2 (de) Freikolbenmaschine mit einer fluidumdruckanlage
DE60123628T2 (de) Elektronisch geregelte Einspritzvorrichtung
DE4233273C2 (de) Hochdruck-Pumpe für eine Kraftstoff-Einspritzanlage mit einer gemeinsamen Druckleitung (common rail)
DE60126173T2 (de) Magnetventil und Brennstoffeinspritzventil unter Verwendung desselben
DE3235413C2 (fr)
DE4206817C2 (de) Kraftstoff-Einspritzvorrichtung nach dem Festkörper-Energiespeicher-Prinzip für Brennkraftmaschinen
DE10214096B4 (de) Kraftstoffeinspritzvorrichtung
EP0764254B1 (fr) Bruleur a mazout
WO1995034786A9 (fr) Bruleur a mazout
WO2009092658A1 (fr) Dispositif d'injection compact de conception simple
WO2004029447A1 (fr) Systeme d'injection de carburant pour moteur a combustion interne
EP1861617B1 (fr) Dispositif d'injection de carburant
EP0467072B1 (fr) Injecteur de carburant pour des moteurs à combustion interne à compressiond'air
DE19725160A1 (de) Kraftstoff-Einspritzvorrichtung für einen Modellmotor
DE69330195T2 (de) Speicherkraftstoffeinspritzvorrichtung
DE3247584A1 (de) Kraftstoffeinspritzpumpe fuer brennkraftmaschinen
DE3038804A1 (de) Kraftstoffzufuehrsystem fuer einen verbreunnungsmotor
DE2115761B2 (de) Steuereinrichtung für eine Kraftstoffeinspritzvorrichtung für Brennkraftmaschinen
DE69920825T2 (de) Brennstoffeinspritzpumpe mit Speicher zur Dampfverhinderung
WO2002012720A1 (fr) Soupape d'injection de carburant
DE19716405C2 (de) Kraftstoffeinspritzvorrichtung für Modellmotoren
EP0685645A2 (fr) Soupape d'injection pour un système d'injection de combustible d'un moteur à combustion interne, en particulier d'un moteur diesel
EP0656472B1 (fr) Dispositif d'injection de combustible à pré-injection et injection principale

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19960129

AC Divisional application: reference to earlier application

Ref document number: 630442

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE DE FR GB IT SE

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE DE FR GB IT SE

17Q First examination report despatched

Effective date: 19970922

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AC Divisional application: reference to earlier application

Ref document number: 630442

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DE FR GB IT SE

REF Corresponds to:

Ref document number: 169376

Country of ref document: AT

Date of ref document: 19980815

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19980810

REF Corresponds to:

Ref document number: 59308851

Country of ref document: DE

Date of ref document: 19980910

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19990330

Year of fee payment: 7

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000304

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020306

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20020527

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030226

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030305

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030310

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030313

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030331

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CD

BERE Be: lapsed

Owner name: *FICHT G.M.B.H. & CO. K.G.

Effective date: 20030331

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040304

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041001

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050304