EP0727015B1 - Appareil de raccordement d'un dispositif de répartition du gaz à des manchons de gaz des systèmes d'injection de carburant pour moteurs à combustion interne - Google Patents

Appareil de raccordement d'un dispositif de répartition du gaz à des manchons de gaz des systèmes d'injection de carburant pour moteurs à combustion interne Download PDF

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Publication number
EP0727015B1
EP0727015B1 EP95919331A EP95919331A EP0727015B1 EP 0727015 B1 EP0727015 B1 EP 0727015B1 EP 95919331 A EP95919331 A EP 95919331A EP 95919331 A EP95919331 A EP 95919331A EP 0727015 B1 EP0727015 B1 EP 0727015B1
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EP
European Patent Office
Prior art keywords
gas
arrangement according
supply line
connecting pieces
inlet passages
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
EP95919331A
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German (de)
English (en)
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EP0727015A1 (fr
Inventor
Waldemar Hans
Jörg Lange
Thomas Betzel
Christian Preussner
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication date
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Publication of EP0727015A1 publication Critical patent/EP0727015A1/fr
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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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on 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
    • F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
    • 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
    • F02M69/08—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by the fuel being carried by compressed air into main stream of combustion-air
    • 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

Definitions

  • the invention relates to a device for connecting a Gas distribution device with gas enclosures from Injectors for injecting a fuel-gas mixture for fuel injection systems from Internal combustion engines according to the preamble of claim 1.
  • JP 59-119053 A Patent Abstracts of Japan, Vol. 8, No. 240 (M-336)
  • M-336 Patent Abstracts of Japan, Vol. 8, No. 240 (M-336)
  • the gas distribution device will mainly from a tubular gas supply line formed which one air intake and several Has connectors for the exit of the gas.
  • the Air to be supplied is upstream of throttle valves Intake pipes of the engine branched off and arrives then via air lines to the actual one Gas supply line.
  • Fuel injectors have on their downstream Ends of air enclosing caps, each with an inlet opening, whose air supply is comparatively complicated since it from the connectors of the gas supply line starting from chambers and connecting channels in the intake pipe close to the cylinder head.
  • Check valves arranged. In an elaborate way the walls of the intake pipes different Flow openings are created to allow the gas supply to guarantee the fuel injectors.
  • the design of the gas distributor brings however, with that the gas supply to the individual Fuel injectors are always directly coupled, because the gas supply lines from intake to intake announced. For example, the last one is in the gas distributor built-in fuel injector that supplies gas already flowed through all other mounting holes is. For an accurate assembly of the relatively rigid Gas distributors are also very tight installation tolerances to adhere to.
  • the inventive device for connecting a Gas distribution device with gas enclosures from Injection devices for fuel injection systems with has the features of claim 1 Advantage that simple, inexpensive, reliable and easy to handle common gas supply for several Devices, for example of fuel injectors for the injection of a fuel-gas mixture is guaranteed.
  • the gas distribution device as part of the The entire facility is a very compact component that very easy to assemble and is removable. Due to the inventive design of the Gas distribution device is a variety of separately running gas pipes avoided, since several for example devices arranged in series with this a gas distribution device can be supplied at the same time.
  • the Gas distribution device advantageously has this a gas supply line with an inner Supply opening on, from which according to the number of devices to be supplied with gas equal number in Branch openings introduced in the connecting pieces run which directly with the gas enclosing bodies of the devices in Connect.
  • the gas is therefore in the device for all devices simultaneously Supply opening of the gas supply line provided and then flows in one piece with the Gas supply line formed connector a device. Without the flow around all devices the gas supply to each device takes place separately with the just a compact gas distribution device so that each Device supplied with a comparatively cool gas is achieved, whereby a better filling is achieved. Especially the very simple assembly and disassembly of the Gas distribution device, in which the devices in no need to change their position.
  • the Gas distributor device in one piece consisting of along a gas distribution longitudinal axis Gas supply line with the corresponding to the number of Devices trained connectors together with an electrical socket strip that the electrical Contacting the devices and one serves Gas supply line with the electrical socket strip connecting connecting element is formed.
  • the Gas supply line, the electrical socket strip and that Connection element along the same axial extent the gas distribution longitudinal axis.
  • plastic-made combined Gas distribution device therefore fulfills two functions, namely the gas supply of the devices for their Gas enclosure and the simultaneous electrical contact of the devices.
  • FIG. 1 shows a first Gas distribution device according to the invention in section on one Fuel injector attached
  • Figure 2 is a partial Representation of the gas distribution device in the area of a Connector according to a second embodiment
  • Figure 3 is a partial representation of the Gas distribution device in the area of a connector according to a third embodiment
  • Figure 4 a simplified longitudinal view of the gas distribution device in the Section
  • Figure 5 is a partial representation of the Gas distribution device in the area of a connector together with a connecting element and one Female header
  • Figure 6 is a simplified longitudinal view of the complex gas distribution device with gas supply line and female header.
  • a gas distributor device 1 for Fuel injection systems for example mixture-compressing, spark-ignition internal combustion engines for the common gas supply of at least two Devices for injecting a fuel-gas mixture together with such a device, here a fuel injector 2, for example and partially shown.
  • a fuel injector 2 for example and partially shown.
  • One for gas supply to the Fuel injector 2 necessary connection of Gas distribution device 1 and fuel injection valve 2 is largely by a fuel injector 2 enclosing gas enclosing body 3 guaranteed.
  • An example of an elongated gas distributor device 1 has one the number of gas to be supplied Fuel injectors 2 corresponding number of with for example constant distance to each other along a Gas distribution longitudinal axis 5, which in Figure 1 perpendicular to Drawing plane runs, trained connectors 7th with which the connection to the gas enclosing body 3 can be produced.
  • the connectors 7 of Gas distribution device 1 each extend along a gas inlet channel axis 8, for example perpendicular to the gas distribution longitudinal axis 5 of the gas distribution device 1 runs.
  • the elongated shape of the Gas distribution device 1 and the arrangement of the Connectors 7 particularly clearly.
  • the fuel injector 2 extends together with the gas enclosing body 3 along a not perpendicular to the Gas inlet channel axis 8 standing valve longitudinal axis 9, wherein the gas enclosing body 3 at least one valve end 10 of the Fuel injector 2 includes.
  • the gas containment body 3 is by a gas inlet channel 13, which, like that Connection piece 7 of the gas distributor device 1 is formed concentrically to the gas inlet channel axis 8, and a tubular stepped encasing jacket 14 which the fuel injector 2 radially over a large one Surrounds part of its axial extent, formed.
  • Electromagnetically actuated fuel injector 2 exhibits as part of a valve housing up to the Valve end 10 extending nozzle body 18.
  • Nozzle body 18 is a stepped longitudinal bore 19 formed, which is concentric with the valve longitudinal axis 9 runs and in the one for example needle-shaped Valve closing part 21 is arranged.
  • the valve closing part 21 has, for example, two guide sections that together with the wall of the longitudinal bore 19 of the Nozzle body 18 for guiding valve closing part 21 serve.
  • the longitudinal bore 19 of the nozzle body 18 points in its downstream end converges towards the Fuel flow frustoconical tapered solid Valve seat 27 on the one with in Direction of fuel flow in the shape of a truncated cone Sealing section 28 of the valve closing part 21 together Seat valve forms.
  • the valve closing part 21 At its sealing section 28 opposite end is the valve closing part 21 with a tubular anchor 30 connected to the anchor 30th partially surrounding magnetic coil 31 and in the axial direction one of the armature 30 on the fixed valve seat 27 opposite tubular inner pole 32 of the fuel injector 2 cooperates.
  • a return spring 33 To the end of the valve closing part 21 connected to the armature 30 is a return spring 33, which strives to Valve closing part 21 in the direction of the fixed valve seat 27 to move.
  • Spray plate 38 Immediately on a downstream end face 37 of the Valve end 10 of the fuel injector 2 is one Spray plate 38 on.
  • the spray plate 38 has for example two or four spray orifices 39, through which the lifted valve closing part 21 on the Valve seat 27 flowing past and into one Spray openings 39 facing end channel 40 of the Longitudinal bore 19 fuel is sprayed.
  • the solenoid 31 radially surrounds itself and extends axially from the inner pole 32 to extends to the nozzle body 18 and with both components connected is.
  • the inner pole 32 is at least partially in the axial direction and the valve jacket 43 through a plastic jacket 45 enclosed.
  • the one made of plastic Manufactured connector 47 include two, for example metallic contact pins 48 that directly with the Winding of the solenoid 31 are connected.
  • the Contact pins 48 protrude from the magnetic coil 31 surrounding and made of plastic coil carrier 49th out and are largely encapsulated by plastic. First their pin end 50, the contact pins 48 are exposed, so that a plug connection with a not shown in Figure 1 corresponding socket part is possible.
  • the surrounding jacket 14 of the gas surrounding body 3 is on its upper end 55 facing connector 47 firmly and tightly connected to the fuel injector 2 and includes the valve jacket 43 radially in the area of the connector 47 facing end of Coil carrier 49.
  • the fixed connection between the Gas enclosure body 3 and the fuel injection valve 2 takes place for example by pressing and / or Ultrasonic welding of the casing 14 of the GasumMech 3 with its end 55 on the circumference of Valve jacket 43 of the fuel injector 2 without a sealing element is required.
  • the gas encasing sleeve 58 surrounds with a cylinder part 59 at least partially axially and with a bottom part 60 at least partially radially the valve end 10 of the Fuel injector 2.
  • the gas encasing sleeve 58 in two parts with an inner and an outer pot made of sheet metal or Made of plastic.
  • the outer pot mainly serves the seal in the gas containment body 3 during the inner pot through from cylinder part 59 to nozzle body 18 protruding bracket sections 62 and an alignment function one projecting from the bottom part 60 to the spray perforated disk 38
  • Radial section 63 has a gas metering function.
  • a gas ring gap 64 formed for example by touching the spray perforated disk 38
  • Spacer elements such as knobs, is fixed.
  • Both the inner pot and the outer pot have a gradient Pot in the bottom part 60 of the gas encasing sleeve 58 Through openings 65 on.
  • the gas inlet duct 13 So the gas gets into one through the wall of the Cylinder part 59 of the inner pot and the circumference of the Nozzle body 18 of the fuel injector 2 in radial Direction limited gas ring channel 66 to the Gas ring gap 64.
  • the axially narrow, radial between the Spray plate 38 and the radial section 63 of the Bottom part 60 formed gas ring gap 64 is used for supply of the gas to that discharged through the spray ports 39 Fuel and gas metering. Because of the low axial extension of the narrow gas ring gap 64 in the direction the valve longitudinal axis 9, the gas supplied is strong accelerates and atomizes the fuel particularly fine, so that reduces the pollutant emissions of the internal combustion engine becomes. The fuel-gas mixture ultimately passes through the Passage openings 65 from the gas encasing sleeve 58 and thus from the fuel injector 2.
  • a gas for example, by bypassing one Throttle valve in an intake manifold of the internal combustion engine branched suction air, conveyed by an additional fan Air, but also recirculated exhaust gas from the internal combustion engine or a mixture of air and exhaust gas can be used.
  • recirculated exhaust gas enables a reduction the pollutant emission of the internal combustion engine.
  • the gas distributor device 1 can be the angle of the gas inlet channel 13 to the valve longitudinal axis 9 different gas containment bodies 3 can be varied.
  • the tubular gas inlet channel 13 has at its Valve jacket 43 facing away from at least one end with the Connection piece 7 of the gas distributor device 1 corresponding functional element 52 to achieve a fixed connection, which will be described in more detail. Thereby for example, it will be tubular and open the gas inlet channel 13 in the area of the functional elements 52 pushed-on connector 7 of the gas distributor device 1 prevented from slipping or tearing off.
  • the gas enclosing body 3 is axially and radially adjoining the gas inlet duct 13 Surrounding jacket 14 similar to the outer contour of the Fuel injector 2 formed.
  • the Gas inlet channel 13 and the surrounding jacket 14 are off made of a plastic that has a high temperature and Has dimensional stability to ultrasonic welding as To be able to use joining processes.
  • a sealing ring 68 is in one between the gas inlet duct 13 and the closure 56 arranged on the circumferential casing 14 provided annular groove 69. It serves as a seal between the circumference of the Gasum embracing body 3 and one, not shown Valve holder, for example on the intake manifold Internal combustion engine can be formed.
  • the gas distributor device 1 is next to the corresponding the number of gas to be supplied Fuel injection valves 2 trained Connectors 7 from an elongated, continuous tubular gas supply line 70 educated.
  • the one that can also be called "Air rail" Gas distribution device 1 can be made of metal, plastic or Be made of rubber.
  • the central gas supply line 70 as the actual basic body of the Gas distribution device 1 has, for example circular cross section. Concentric to Gas distribution longitudinal axis 5 extends in the Gas supply line 70 an elongated Supply opening 71 with a circular Cross-section.
  • Exemplary embodiment is the gas distribution device 1 from Made of rubber.
  • the Functional elements 52 represent in this embodiment two consecutively arranged wedge-shaped respectively conical holding portions 75, as in Connections with hoses are common.
  • the Connects piece 7 as an elastic connecting hose around the holding portions 75 and surrounds them in Complete circumferential direction. Because of the conical shape of the holding portions 75 in a sawtooth shape similar to barb formed noses and valleys Connection piece 7 held on the gas inlet channel 13. Protection against deduction is also given by the fact that Connector 7 has a radial hose tension, which ensures that the connector 7 in radial Wants to relax towards the gas inlet channel axis 8.
  • Figures 2 and 3 show simplified sections through the Gas distribution device 1 in the area of one Connectors 7. Especially in the training of Connectors 7 and the functional elements 52 of the Gas inlet channel 13 for holding the Gas distribution device 1 differ in that Figures 2 and 3 illustrated embodiments of the In the embodiment shown in Figure 1. Otherwise are in the further exemplary embodiments which are compared to that in Figure 1 illustrated embodiment constant or equivalent parts by the same Reference numbers marked.
  • gas distributor device 1 is for example, one made of plastic or rubber manufactured component.
  • the connector 7, which is again starting from the gas supply line 70 concentrically along the central axis 74 or the Gas inlet channel axis 8 extends is very simple executed.
  • the tubular contour that shows Connector 7 has a constant outside diameter
  • the inner wall or the Branch opening 73 is designed to be optimal in the area of the functional element 52 and one of the Surrounding jacket 14 facing away from the front side 77 of the Create gas inlet channel 13 on its outer contour can.
  • the tubular gas inlet channel 13 has its end facing away from the valve jacket 43 a radial circumferential elevation 78, which in a on the inner wall of the connecting piece 7 provided circumferential groove 79 can snap into place.
  • the increase 78 thus represents this Embodiment, the functional element 52.
  • One in the Branch opening 73 formed paragraph 80 of the Connector 7 is, for example, precisely on the Front side 77 of the gas inlet channel 13.
  • Next to the The functional element 52 can also be snapped into place additional trigger protection by a radial acting Tension of the connector 7 can be achieved.
  • a gas distributor device 1 is partial in FIG shown in section in the area of a connecting piece 7, which is made of plastic.
  • a Groove 82 for locking which, for example, all around the External contour of the gas inlet channel 13 is formed and here represents the functional element 52.
  • the groove 82 grip one circumferentially or several separately on the inner Wall of the connector 7 trained, for example sawtooth-shaped locking lugs 83 a pulling or Tear off the gas distributor device 1 from the gas inlet channel 13 prevent.
  • the at least one locking lug 83 is so on Connector 7 attached that postponing the Connector 7 towards Fuel injection valve 2 on the gas inlet channel 13 up to groove 82 is very simple, while after Engage a movement in the opposite direction is prevented, similar to a form lock. Only under Exertion of force by radially spreading the Connector 7 is the gas distributor device 1 of to separate the gas containment body 3.
  • a recess 85 of the gas inlet channel 13 can be provided be in which a sealing element 86, for example as a sealing ring or as co-molded in the connector 7 Hose section is arranged to be used for sealing between gas distributor device 1 and gas inlet duct 13 to care.
  • FIG 4 shows a simplified and schematic one Longitudinal view of the gas distribution device 1 with four Connectors 7 after that shown in Figure 1 first embodiment.
  • the basic body of the Gas distribution device 1 is the tubular, elongated gas supply line 70, which is extends concentrically to the gas distribution longitudinal axis 5 and has at least one open end 87 that is in more direct Connection with a not shown Gas supply source stands.
  • the supply opening 71 in The interior of the gas supply line 70 has one Length that is at least the distance between the central axes 74 of the two most distant branch openings 73, so here the distance between the central axis 74 of the first Branch opening 73 and the central axis 74 of the fourth Branch opening 73 corresponds.
  • the open end 87 can also be designed such that a connection of a Supply hose is easily enabled as it Figure 6 shows a connector 99. That to the open End 87 opposite distributor end 89 is for example completely closed, so that the supply opening 71 in Inside the gas supply line 70 also one has closed end region 90. However, it is also conceivable that the gas supply line 70 completely is tubular with two open ends that either both with the gas supply source directly in Are connected or via a feedback of one End to the other.
  • FIG. 5 and 6 A more complex configuration of the gas distribution device 1 is shown in Figures 5 and 6 and with the Reference numeral 1 'marked.
  • the gas distribution device 1 ' is now in one piece together with an electrical one Female header 92 formed, with a connecting element 93 between the gas supply line 70 and the Socket strip 92 runs.
  • Gas distribution device 1 'made of a plastic It is expedient that Gas distribution device 1 'made of a plastic.
  • FIGs 5 and 6 provide only simplified drawings represents the basic structure of the Gas distribution device 1 'to clarify.
  • the electrical socket strip 92 points according to the number of fuel injectors 2 and thus the number of Connector 47 the same number of with the Connectors 47 corresponding sockets 94, so that each fuel injector 2 is paired Plug-socket is electrically contacted.
  • the electrical Contact is made via the plug-socket pairing system in a known manner as in the case of fuel injection valves 2 or other devices or units usual plug connections.
  • the electrical Female header 92 receives electrical conductors 95, which with the connecting elements 96 for contacting the Fuel injectors 2 are connected.
  • the Gas supply line 70 and the female header 92 includes is given a very simple and compact arrangement that fulfills two functions, namely the gas supply to the Fuel injection valves 2 for their gas enclosure Fuel etc. to reduce pollutant emissions and the simultaneous electrical contacting of the Fuel injectors 2.
  • FIG. 6 gives a schematic overview of the Entire gas distribution device 1 '.
  • the Gas supply line 70, the socket strip 92 and that two connecting connecting element 93 have, for example the same axial extension.
  • the connectors 7 and the bushings 94 are each directly opposite arranged, since usually the connector 47 and the Gas inlet channel 13 on the circumference of the Fuel injector 2 from a meridian, ie one line running parallel to the valve longitudinal axis 9 are arranged, as indicated by the dashed line 97.
  • the gas distributor device 1, 1 'with the connecting pieces 7 for receiving the gas inlet channels 13 of the Gasum body 3 of fuel injection valves 2 for Injection of a fuel-gas mixture and with one central, for the gas supply of the fuel injection valves 2 serving gas supply line 70 allows for easy and reliable way of supplying a gas the fuel injectors 2 or others Devices.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Feeding And Controlling Fuel (AREA)

Claims (12)

  1. Appareil de raccordement d'une installation de distribution de gaz (1, 1') à des corps formant enveloppes de gaz (3) d'au moins deux dispositifs (2) pour injecter un mélange carburant/gaz dans des installations d'injection de carburant de moteurs à combustion interne,
    comprenant une conduite d'alimentation de gaz (70) servant d'alimentation en gaz commune pour au moins les deux dispositifs (2) entourés très largement par les corps formant enveloppes de gaz (3), avec une ouverture d'alimentation (71) le long d'un axe longitudinal de distribution de gaz (5),
    la conduite d'alimentation en gaz (70) ayant un nombre de dispositifs (2) correspondant au nombre de pièces de liaison (7) dans lesquelles il y a chaque fois un orifice de dérivation (73) avec un axe (74) directement relié chaque fois à l'orifice d'alimentation (71),
    l'orifice d'alimentation (71) n'étant pas interrompu par les orifices de dérivation (73),
    et la longueur de l'orifice d'alimentation (71) correspondant au moins à la distance entre les axes (74) des deux orifices de dérivation (73) les plus éloignés,
    caractérisé en ce que
    les pièces de liaison (7) sont reliées directement aux canaux tubulaires d'entrée de gaz (13) des corps formant enveloppes de gaz (3),
    les canaux d'entrée de gaz (13) ayant, à leur périphérie, des éléments fonctionnels (52, 75, 78, 82) coopérant avec des moyens correspondants (79, 83) des pièces de liaison (7) pour réaliser une liaison fixe.
  2. Appareil selon la revendication 1,
    caractérisé en ce que
    les canaux d'entrée de gaz (13) sont reliés aux pièces de liaison (7) pour que ces pièces de liaison (7) reçoivent au moins en partie les canaux d'entrée de gaz (13) dans leurs orifices de dérivation (73), et les entourent ainsi radialement.
  3. Appareil selon la revendication 2,
    caractérisé en ce que
    les pièces de liaison (7) sont déformables élastiquement et, au montage sur les canaux d'entrée de gaz (13), ces pièces sont déformées pour s'appliquer contre les canaux avec une tension radiale.
  4. Appareil selon la revendication 2,
    caractérisé en ce que
    les orifices de dérivation (73) des pièces de liaison (7) sont étagés pour recevoir les éléments d'étanchéité (86) assurant l'étanchéité avec les canaux d'entrée de gaz (13).
  5. Appareil selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les axes (74) des orifices de dérivation (73) ou des pièces de liaison (7) sont alignés avec chaque axe (8) du canal d'entrée de gaz (13) correspondant.
  6. Appareil selon les revendications 1 ou 2,
    caractérisé en ce que
    les éléments fonctionnels (52, 75, 78, 82) sont réalisés sur les canaux d'entrée de gaz (13) et les moyens correspondants (79, 83) des pièces de liaison (7) pour former des liaisons d'accrochage, d'engagement ou d'encliquetage.
  7. Appareil selon la revendication 1,
    caractérisé en ce qu'
    une barrette à douille (92) fait corps avec la conduite d'alimentation de gaz (70), cette barrette recevant les conducteurs électriques (92) et servant à réaliser les connexions électriques des dispositifs (2).
  8. Appareil selon la revendication 7,
    caractérisé en ce que
    la conduite d'alimentation de gaz (70) est reliée à la barrette à douille électrique (92) par un élément de liaison (93).
  9. Appareil selon la revendication 8,
    caractérisé en ce que
    la conduite d'alimentation en gaz (70), la barrette à douille (92) et l'élément de liaison (93) ont la même extension axiale suivant l'axe longitudinal de distribution de gaz (5).
  10. Appareil selon l'une des revendications 1 ou 7,
    caractérisé en ce que
    l'installation de distribution de gaz (1, 1') est réalisée en une matière plastique.
  11. Appareil selon la revendication 1,
    caractérisé en ce que
    l'installation de distribution de gaz (1, 1') est en caoutchouc.
  12. Appareil selon l'une des revendications 1 ou 7,
    caractérisé en ce que
    la conduite d'alimentation en gaz (70) présente une extrémité ouverte (87) alors que l'extrémité de distribution (89) opposée est fermée, de sorte que l'orifice d'alimentation (71) qui se trouve sur la conduite d'alimentation de gaz (70), présente une zone d'extrémité fermée (90) à son extrémité de distribution (89).
EP95919331A 1994-09-01 1995-05-26 Appareil de raccordement d'un dispositif de répartition du gaz à des manchons de gaz des systèmes d'injection de carburant pour moteurs à combustion interne Expired - Lifetime EP0727015B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4431044A DE4431044A1 (de) 1994-09-01 1994-09-01 Gasverteilereinrichtung für Brennstoffeinspritzanlagen
DE4431044 1994-09-01
PCT/DE1995/000694 WO1996007026A1 (fr) 1994-09-01 1995-05-26 Dispositif de repartition du gaz pour systemes d'injection de carburant

Publications (2)

Publication Number Publication Date
EP0727015A1 EP0727015A1 (fr) 1996-08-21
EP0727015B1 true EP0727015B1 (fr) 2000-08-30

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EP95919331A Expired - Lifetime EP0727015B1 (fr) 1994-09-01 1995-05-26 Appareil de raccordement d'un dispositif de répartition du gaz à des manchons de gaz des systèmes d'injection de carburant pour moteurs à combustion interne

Country Status (9)

Country Link
US (1) US6626159B1 (fr)
EP (1) EP0727015B1 (fr)
JP (1) JPH09504852A (fr)
KR (1) KR100374096B1 (fr)
CN (1) CN1065591C (fr)
BR (1) BR9506351A (fr)
DE (2) DE4431044A1 (fr)
ES (1) ES2151063T3 (fr)
WO (1) WO1996007026A1 (fr)

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DE19647586A1 (de) * 1996-11-18 1998-05-20 Bosch Gmbh Robert Verteilereinrichtung für Brennstoffeinspritzanlagen
JP2004144004A (ja) * 2002-10-24 2004-05-20 Sanoh Industrial Co Ltd フューエルデリバリパイプ
DE10311523A1 (de) * 2003-03-17 2004-09-30 Robert Bosch Gmbh Elektromagnet, insbesondere für ein Magnetventil
DE102004010174B4 (de) * 2004-03-02 2017-04-06 Robert Bosch Gmbh Pressverbund aus einem Metallteil und einem Kunststoffteil
DE102005014644A1 (de) * 2005-03-31 2006-10-05 Daimlerchrysler Ag Brennstoffzuführsystem für eine Brennkraftmaschine
CN103104392B (zh) * 2012-12-08 2014-12-03 宁波市鄞州云帆工程咨询有限公司 具有反向锁固功能的喷油器底座

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EP0727015A1 (fr) 1996-08-21
BR9506351A (pt) 1997-09-02
ES2151063T3 (es) 2000-12-16
DE4431044A1 (de) 1996-03-07
JPH09504852A (ja) 1997-05-13
WO1996007026A1 (fr) 1996-03-07
DE59508682D1 (de) 2000-10-05
KR100374096B1 (ko) 2003-05-12
CN1135251A (zh) 1996-11-06
KR960706024A (ko) 1996-11-08
CN1065591C (zh) 2001-05-09
US6626159B1 (en) 2003-09-30

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