EP1593842A2 - Injector of fuel regulated electronycally - Google Patents

Injector of fuel regulated electronycally Download PDF

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Publication number
EP1593842A2
EP1593842A2 EP05076154A EP05076154A EP1593842A2 EP 1593842 A2 EP1593842 A2 EP 1593842A2 EP 05076154 A EP05076154 A EP 05076154A EP 05076154 A EP05076154 A EP 05076154A EP 1593842 A2 EP1593842 A2 EP 1593842A2
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EP
European Patent Office
Prior art keywords
fuel
injector
cylinder
ports
cylinder distributor
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.)
Withdrawn
Application number
EP05076154A
Other languages
German (de)
French (fr)
Other versions
EP1593842A3 (en
Inventor
José Martinez Casan
Salvador Andres Pons
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1593842A2 publication Critical patent/EP1593842A2/en
Publication of EP1593842A3 publication Critical patent/EP1593842A3/en
Withdrawn legal-status Critical Current

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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
    • 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
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F02M63/023—Means for varying pressure in common rails
    • F02M63/0235—Means for varying pressure in common rails by bleeding fuel pressure
    • F02M63/025—Means for varying pressure in common rails by bleeding fuel pressure from the common rail
    • 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
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
    • F02M51/0689—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means and permanent magnets
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • 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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
    • 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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
    • F02M59/28—Mechanisms 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
    • 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
    • F02M61/042—The valves being provided with 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
    • 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
    • F02M61/06—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 furnished at seated ends with pintle or plug shaped extensions
    • 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
    • F02M63/0003—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure
    • F02M63/0007—Fuel-injection apparatus having a cyclically-operated valve for connecting a pressure source, e.g. constant pressure pump or accumulator, to an injection valve held closed mechanically, e.g. by springs, and automatically opened by fuel pressure using electrically actuated 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
    • 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
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
    • F02M63/0215—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine by draining or closing fuel conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • 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
    • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
    • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/042—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being cams
    • 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

Definitions

  • the object to which refers the invention that is protected in this Patent consists on the development of an injector for the injection of fuel in motors diesel by means of the system "common-rail" that avoids the possibility of leak of fuel because of the waste, long term, of the seat of the needle of the injector that opens up and he/she closes the step from the same one to the cylinder.
  • the system of injection of fuel to the cylinders in the motors diesel is compound, in general, for an injector for cylinder that is fed by a derivation peculiar of the general pipe of allotment, with an or two branches (well-known as ramp of injectors or "common-rail") that receives the fuel from a bomb of pistons of high pressure.
  • One of the inconveniences that present the current injectors consists on the waste, long term, of the seat of the needle of the injector that opens up and he/she closes the step from the fuel to the cylinder; this waste facilitates that the fuel can penetrate in the cylinder in moments that it doesn't correspond to inject fuel.
  • the purpose of the invention that constitutes the object of this Patent consists on the reduction of the inconveniences characteristic of the well-known system of injection of fuel in the motors diesel that have been described above, having been conceived and designed in its several aspects, with this high-priority objective.
  • the claimed injection system has a device anti-drip that makes the cut of the injection automatically if the injector doesn't pulverize, impeding this way the spill of fuel inside the cylinder.
  • Each injector is formed by the following structural elements:
  • Cylinder distributor worked by a solenoid and located in the superior part of the injector.
  • Ports of the cylinder three of entrance superiors and three of inferior exit.
  • Cane of the injector with three longitudinal channels, separated 120° that receive the fuel from the inferior ports, to each other which reaches a conventional nozzle and he/she lifts their needle to be pulverized inside the cylinder.
  • Entrance of fuel to the injector Feeding from the bomb of High Pressure, entering the fuel for the outlying channel of the cane of the injector that has three grooves, separated to 120°, of equals dimensions that the ports of entrance of the cylinder distributor, the six ports of the cylinder distributor communicated to each other being, inwardly, for the axial channel of feeding.
  • Step of the fuel to the cylinder distributor When the solenoid lifts the cylinder distributor they face in positional coincidence the grooves of the outlying channel of the cane of the injector, with the ports of entrance of the cylinder distributor, settling down the communication between this ports and the axial channel of feeding.
  • Exit of fuel of the cylinder distributor The fuel that arrives to the axial channel of feeding of the cylinder distributor, descends for him until reaching the exit ports, which face, when the solenoid lifts the cylinder distributor, in positional coincidence with grooves of equals dimensions, in a second outlying channel of the cane of the injector, collector of the fuel, which descends for three longitudinal channels that are in permanent communication with this collector, until reaching the nozzle, getting up with suppression the needle and pulverizing the fuel inside the cylinder.
  • a basic idea for the development of the invention has been the one of avoiding the waste, long term, that takes place in the seat of the needle of the injector that opens up and he/she closes the step from the fuel to the cylinder, avoiding in this way that there are escapes of fuel.
  • the mobile organs of the injectors are worked by a solenoid (1) that, in turn, he/she moves for the received impulses from the Electronic Unit of Control (UEC) (2)
  • Each injector is formed by the following structural elements:
  • Cylinder distributor (3) worked by a solenoid (1) and located in the superior part of the injector.
  • Ports (4) of the cylinder three of entrance superiors (4') and three of inferior exit (4").
  • Cane (5) of the injector with three longitudinal channels (6), separated 120° that you/they receive the fuel from the inferior ports to each other (4 "), which reaches a conventional nozzle and he/she lifts their needle to be pulverized inside the cylinder.
  • Exit of fuel of the rotor (3) The fuel that arrives to the axial channel of feeding (9) of the cylinder distributor, it descends for him until reaching the exit ports (4"), which face lifting the solenoid (1) the cylinder distributor, in positional coincidence with grooves of equals dimensions, in a second outlying channel (10) of the cane of the injector, collector of the fuel, which descends for the three longitudinal channels (6) that are in permanent communication with this collector (10), until reaching the nozzle (11), getting up with their pressure the needle (12) and pulverizing the fuel inside the cylinder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

An injector for the injection of fuel in diesel motors by means of the system "common-rail" that avoids the possibility of leak of fuel because of the waste, long term, of the seat of the needle of the injector.
The rotary valve of the injector is actuated by a solenoid (1) which is controlled by an Electronic Unit of Control (UEC) (2).
The quantity of fuel that is injected, is regulated by means of the time that the ports (4',4") of the cylinder distributor (3) are open. Since to open the ports it is only necessary that they coincide, it is avoided this way the necessity of a spring that pushes a needle on a hole to close it, that which causes with the time a defect in the seat and therefore a possible leak of fuel.
Figure 00000001

Description

OBJECT
The object to which refers the invention that is protected in this Patent, consists on the development of an injector for the injection of fuel in motors diesel by means of the system "common-rail" that avoids the possibility of leak of fuel because of the waste, long term, of the seat of the needle of the injector that opens up and he/she closes the step from the same one to the cylinder.
ANTECEDENTS
The system of injection of fuel to the cylinders in the motors diesel is compound, in general, for an injector for cylinder that is fed by a derivation peculiar of the general pipe of allotment, with an or two branches (well-known as ramp of injectors or "common-rail") that receives the fuel from a bomb of pistons of high pressure.
One of the inconveniences that present the current injectors consists on the waste, long term, of the seat of the needle of the injector that opens up and he/she closes the step from the fuel to the cylinder; this waste facilitates that the fuel can penetrate in the cylinder in moments that it doesn't correspond to inject fuel.
DESCRIPTION OF THE INVENTION
The purpose of the invention that constitutes the object of this Patent, consists on the reduction of the inconveniences characteristic of the well-known system of injection of fuel in the motors diesel that have been described above, having been conceived and designed in its several aspects, with this high-priority objective.
The qualification of "electronic" that is attributed to the injection system that constitutes the object of this Patent, it obeys the existence in their structure and to the intervention in their operation, of an Electronic Unit of Control (U.E.C.) that, acting on the mobile organs of the injectors, it regulates their performance automatically in time (I begin and end of the injection) and in quantity (dosage of the fuel).
The described performance of the U.E.C. it contributes to the system two important functional advantages:
The reduction of the time of injection
The precise regulation of the consumption of fuel, to any working regime of the motor.
In turn, these advantageous characteristics contribute and they condition other equally favourable ones as:
Smaller consumption of fuel, to equality of benefits of the motor.
Bigger compression pressure and for it, adult even motor and more power.
On the other hand, the claimed injection system has a device anti-drip that makes the cut of the injection automatically if the injector doesn't pulverize, impeding this way the spill of fuel inside the cylinder.
Each injector is formed by the following structural elements:
Cylinder distributor: worked by a solenoid and located in the superior part of the injector.
Ports of the cylinder: three of entrance superiors and three of inferior exit.
Cane of the injector: with three longitudinal channels, separated 120° that receive the fuel from the inferior ports, to each other which reaches a conventional nozzle and he/she lifts their needle to be pulverized inside the cylinder.
With the claimed injection system they are carried out the following operations, described in the same sequential order with which you happens in the practice:
Entrance of fuel to the injector: Feeding from the bomb of High Pressure, entering the fuel for the outlying channel of the cane of the injector that has three grooves, separated to 120°, of equals dimensions that the ports of entrance of the cylinder distributor, the six ports of the cylinder distributor communicated to each other being, inwardly, for the axial channel of feeding.
Step of the fuel to the cylinder distributor: When the solenoid lifts the cylinder distributor they face in positional coincidence the grooves of the outlying channel of the cane of the injector, with the ports of entrance of the cylinder distributor, settling down the communication between this ports and the axial channel of feeding.
Exit of fuel of the cylinder distributor: The fuel that arrives to the axial channel of feeding of the cylinder distributor, descends for him until reaching the exit ports, which face, when the solenoid lifts the cylinder distributor, in positional coincidence with grooves of equals dimensions, in a second outlying channel of the cane of the injector, collector of the fuel, which descends for three longitudinal channels that are in permanent communication with this collector, until reaching the nozzle, getting up with suppression the needle and pulverizing the fuel inside the cylinder.
BRIEF DESCRIPTION OF THE DRAWINGS
To supplement the description of the invention and to facilitate the interpretation of the formal, structural and functional characteristics of their object, they accompany drawings in those that different aspects of a preferable realization of the "INJECTOR REGULATED ELECTRONICALLY" are represented schematically that it constitutes the object of this Patent. In this drawings:
  • The Figure 1 represent in longitudinal section, the cylinder distributor with the solenoid responsible for their rising
  • The Figure 2 represent in longitudinal section, the cane of the injector.
  • The Figure 3 represent in longitudinal section an injector with all their elements, except the nozzle.
  • The Figure 4 sample in longitudinal section, the feeding head that you fits in the superior end of the cane of the injector; the Figure 5 are a view in plant superior of the same element; the Figure 6 are the same view, showing the cylinder placed distributor; and the Figure 7 are a view in traverse section of the inferior end of the cane of the injector, showing the longitudinal channels of the same one.
  • The figure 8 sample different longitudinal sections of the cylinder distributor.
  • The Figure 9 is a conventional perspective of the cylinder distributor.
  • The Figure 10 is a longitudinal section of the nozzle and a raised lateral of the needle of the same one.
  • The Figure 11 sample different perspectives where the relative position of the different elements of the injector is shown.
  • The figure 12 is a general outline that shows the relative disposition of the different components of the injection system.
    • DESCRIPTION OF A PREFERABLE REALIZATION
    To show with clarity the nature and the reach of the advantageous application of the "INJECTOR REGULATED ELECTRONICALLY" that it constitutes the object of the claimed invention, the operations that compose the procedure, attributed to each one of the constituent organs from the injector to which affect the introduced innovations are described subsequently and that for they form it part of the device for the setting in practice of this procedure, making reference to the drawings that, to represent a preferable realization of this object, with informative character, they should be considered in their wider sense and I don't eat constrainers of the application and the content of the claimed invention.
    A basic idea for the development of the invention has been the one of avoiding the waste, long term, that takes place in the seat of the needle of the injector that opens up and he/she closes the step from the fuel to the cylinder, avoiding in this way that there are escapes of fuel.
    According to the invention, the mobile organs of the injectors are worked by a solenoid (1) that, in turn, he/she moves for the received impulses from the Electronic Unit of Control (UEC) (2)
    Each injector is formed by the following structural elements:
    Cylinder distributor (3): worked by a solenoid (1) and located in the superior part of the injector.
    Ports (4) of the cylinder: three of entrance superiors (4') and three of inferior exit (4").
    Cane (5) of the injector: with three longitudinal channels (6), separated 120° that you/they receive the fuel from the inferior ports to each other (4 "), which reaches a conventional nozzle and he/she lifts their needle to be pulverized inside the cylinder.
    With the claimed injection system they are carried out the following operations, described in the same sequential order with which you happens in the practice:
  • Entrance of fuel to the injector: Feeding from the bomb of High Pressure, entering the fuel for the outlying channel (7) of the cane of the injector that has three grooves (8) separated to 120°, of equals dimensions that the entrance ports (4') of the cylinder distributor (3), the six ports of the rotor communicated to each other being, inwardly, for the axial channel of feeding (9).
  • Step of fuel to the cylinder distributor (3): When the solenoid lifts the cylinder distributor they face in positional coincidence the grooves (8) of the outlying channel of the cane of the injector, with the ports (4') of entrance of the cylinder distributor, settling down the communication between this ports and the axial channel of feeding (9).
    • Exit of fuel of the rotor (3): The fuel that arrives to the axial channel of feeding (9) of the cylinder distributor, it descends for him until reaching the exit ports (4"), which face lifting the solenoid (1) the cylinder distributor, in positional coincidence with grooves of equals dimensions, in a second outlying channel (10) of the cane of the injector, collector of the fuel, which descends for the three longitudinal channels (6) that are in permanent communication with this collector (10), until reaching the nozzle (11), getting up with their pressure the needle (12) and pulverizing the fuel inside the cylinder.

    Claims (2)

    1. a - Procedure of electronic administration of the injection for distribution, for motors diesel, and device for their setting in practice, characterized because, the mobile organs of the injectors are worked by a solenoid (1) that, in turn, he/she moves for received impulses from the Electronic Unit of Control (UEC) (2)
    2. a.- Procedure of electronic administration of the injection for distribution, for motors diesel, according to the Recovery 1a, characterized because to make the injection they are carried out the following operations, described in the same sequential order with which you happens in the practice:
      Entrance of fuel to the injector: Feeding from the bomb of High Pressure, entering the fuel for the outlying channel of the cane of the injector that has three grooves, separated to 120°, of equals dimensions that the ports of entrance of the cylinder distributor, the six ports of the cylinder distributor communicated to each other being, inwardly, for the axial channel of feeding.
      Step of the fuel to the cylinder distributor: When the solenoid lifts the cylinder distributor they face in positional coincidence the grooves of the outlying channel of the cane of the injector, with the ports of entrance of the cylinder distributor, settling down the communication between this ports and the axial channel of feeding.
      Exit of fuel of the cylinder distributor: The fuel that arrives to the axial channel of feeding of the cylinder distributor, descends for him until reaching the exit ports, which face, when the solenoid lifts the cylinder distributor, in positional coincidence with grooves of equals dimensions, in a second outlying channel of the cane of the injector, collector of the fuel, which descends for three longitudinal channels that are in permanent communication with this collector, until reaching the nozzle, getting up with suppression the needle and pulverizing the fuel inside the cylinder.
    EP05076154A 2003-08-14 2003-08-14 Injector of fuel regulated electronycally Withdrawn EP1593842A3 (en)

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP03380193A EP1507083A1 (en) 2003-08-14 2003-08-14 Procedure and device for the electronic management of time fuel injection, for diesel engines

    Related Parent Applications (1)

    Application Number Title Priority Date Filing Date
    EP03380193A Division EP1507083A1 (en) 2003-08-14 2003-08-14 Procedure and device for the electronic management of time fuel injection, for diesel engines

    Publications (2)

    Publication Number Publication Date
    EP1593842A2 true EP1593842A2 (en) 2005-11-09
    EP1593842A3 EP1593842A3 (en) 2005-11-16

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    ID=33560907

    Family Applications (2)

    Application Number Title Priority Date Filing Date
    EP03380193A Withdrawn EP1507083A1 (en) 2003-08-14 2003-08-14 Procedure and device for the electronic management of time fuel injection, for diesel engines
    EP05076154A Withdrawn EP1593842A3 (en) 2003-08-14 2003-08-14 Injector of fuel regulated electronycally

    Family Applications Before (1)

    Application Number Title Priority Date Filing Date
    EP03380193A Withdrawn EP1507083A1 (en) 2003-08-14 2003-08-14 Procedure and device for the electronic management of time fuel injection, for diesel engines

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    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US4339737A (en) * 1980-09-22 1982-07-13 Cummins Engine Company, Inc. Rotary electrically actuated device
    JPH10196490A (en) * 1997-01-14 1998-07-28 Zexel Corp Fuel injection nozzle
    DE19960340A1 (en) * 1999-12-15 2001-06-21 Bosch Gmbh Robert Fuel injector

    Also Published As

    Publication number Publication date
    EP1507083A1 (en) 2005-02-16
    EP1593842A3 (en) 2005-11-16

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