EP0900933B1 - Dispositif de connexion des injecteurs d'un moteur à combustion interne - Google Patents
Dispositif de connexion des injecteurs d'un moteur à combustion interne Download PDFInfo
- Publication number
- EP0900933B1 EP0900933B1 EP19980402062 EP98402062A EP0900933B1 EP 0900933 B1 EP0900933 B1 EP 0900933B1 EP 19980402062 EP19980402062 EP 19980402062 EP 98402062 A EP98402062 A EP 98402062A EP 0900933 B1 EP0900933 B1 EP 0900933B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail
- injectors
- connectors
- connector
- linking member
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 16
- 238000002347 injection Methods 0.000 claims description 24
- 239000007924 injection Substances 0.000 claims description 24
- 239000000446 fuel Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000002991 molded plastic Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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
- 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
- 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
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
Definitions
- the subject of the present invention is a device for connecting the injectors of an engine to internal combustion, especially for a motor vehicle.
- Internal combustion engines include fuel injectors that are connected, park, to a fuel injection ramp and, on the other part, to electrical connection means with a grocery.
- each injector has a injection end and feed end connected to the injection manifold and also a connector intended to be connected to the means of electrical connection.
- This strip contains the wires supply to each injector and is snapped on on the fuel supply rail.
- Each injector is connected by a beam flexible so that, during assembly, the connection individual connections are made manually. he therefore it is necessary that the operator can access correctly at the connector location of each injector which is often difficult given of the architecture of internal combustion engines.
- FR-A-2 702 248 a fuel injection device for a internal combustion which includes an injection ramp fuel fitted with connection housing electrical as well as supply harnesses.
- the fixing is carried out laterally by relation to the injection rail by means of a bar connection and the injector connectors are arranged perpendicular to the axis of said ramp injection and said injection bar.
- This provision is particularly bulky and cannot be used on all engine architectures, especially four-engine valves per cylinder with an injector located at the center and where space is very limited laterally.
- EP-A-0530 337 a device for connecting the injectors of an engine to internal combustion of the type corresponding to the preamble of claim 1.
- the object of the invention is to provide a connection device which ensures the power supply of several injectors and which is particularly easy to install on internal combustion engines.
- the subject of the invention is therefore a device for connecting the injectors of a combustion engine internal, in particular of a motor vehicle, of the type comprising a fuel injection rail provided for each injector of a nozzle and means of electrical connection between a computer control of the engine and each injector, said means connection including a main connector intended to be connected to said computer, connectors individual intended to cooperate with connectors worn by injectors and an organ link supporting the main connector and individual connectors and forming a continuous guide for the electric cables connecting the said connectors, characterized in that the connecting member includes parallel sockets each for passage of a nozzle and a rail extending perpendicular to the sockets and formed by sections connecting these sockets together, said sockets sections of the rail communicating with each other by half-flanges made on the sockets in the extension of said sections to form said continuous guide of electric cables.
- connection device designated as a whole by the reference 10 and which is intended to supply the injectors 1 of an internal combustion engine in fuel and electrical energy.
- each injector 1 has a lower injection end 2, a upper end 3 of supply intended to be connected to a fuel injection rail 11 and a connector 4 connected by electrical cables to a electromagnetic coil, not shown, arranged at inside the injector 1 and controlling the displacement of the injector needle.
- the injection manifold 11 has nozzles 12 parallel and intended to fit each on the feed end 3 of each injector 1.
- each nozzle 12 has a internal conduit 13 which is connected to a conduit main 14 formed in the ramp 11.
- This main duct 14 is intended to be connected to a pipe 15 supplying fuel.
- connection device also includes connection means 20 between a general supply and each connector 4 of injectors 1.
- connection means 20 comprise a connector main 21 intended to be connected to the computer electronics managing the functions of the engine, individual connectors 22 intended to cooperate each with the complementary connector 4 carried by the injectors and a connecting member 23 supporting the main connector 21 and the individual connectors 22 and forming a continuous guide for cables 24 connecting the main connector 21 to each individual connector 22.
- each injector is connected individually two of the cables 24.
- the connecting member 23 comprises, from a part, sockets 25 parallel to each other and each intended for the passage of a nozzle 12 of the ramp injection 11 and, on the other hand, a rail 26 extending perpendicular to the sockets 25.
- the connecting member 23 comprises four sockets 25 and the rail 26 comprises three sections, 26a, 26b and 26c respectively, connecting the said sockets 25 between them.
- the sections 26a, 26b and 26c of the rail 26 are arranged at the top of the sockets 25.
- sections 26a, 26b and 26c communicate with each other by half-collars, 27a, 27b, 27c and 27d respectively on the sockets 25 in the extension of said sections 26a, 26b and 26c to form said continuous cable guide electric 24.
- the connecting member 23 formed by the sockets 25 and the rail 26 is made of a material rigid and molded plastic.
- the main connector 21 is fixed to a end of rail 26 or came from material to a end of this rail 26.
- each individual connector 22 is arranged at the lower end of a socket 25.
- the individual connectors 22 are fixed on the sockets 25 or came in one piece with said sockets 25.
- the electric cables 24 leave from main connector 21, run inside the sections 26a, 26b and 26c and half-flanges 27a, 27b, 27c and 27d and run around each socket 25 to lead to each individual connector 22.
- the cables 24 can be overmolded, glued or otherwise fixed along each socket 25.
- each socket 25 has means on its internal face of the corresponding nozzle 12.
- these latching means are formed by bosses 18 formed on the external face of each nozzle 12 and through holes 28 made in each socket 25 and intended to cooperate with said bosses 18.
- the injectors 1 are mounted in the cylinder head of the internal combustion engine and are oriented so as to preposition the connectors 4.
- the injectors 1 can be maintained in places, for example, two by two, by means of a clamp 29, as shown in Figure 2.
- Each nozzle 12 of the injection manifold 11 is introduced into a socket 25 of the link 23.
- Each socket 12 is held on the nozzle corresponding by the bosses 18 which are snapped in holes 28.
- the connecting member 23 is maintained on the injection rail 11 and the assembly as well constituted is assembled in a single operation on the 1 pre-positioned injectors.
- the supply line 15 in fuel is mounted on the injection rail 11 and the main connector 21 is connected to the power supply general electrical.
- connection device provides electrical power of several injectors by means of a single link and all of the electrical connections and fuel supply is achieved in one surgery.
- connection device conforms to the invention has the advantage of being easily accessible and particularly easy to mount on injectors of an internal combustion engine, in particular direct injection, while ensuring in a single operation the different electrical connections and Hydraulic.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
- l'organe de liaison est en une matière plastique rigide et moulée,
- le connecteur principal est fixé à une extrémité du rail de l'organe de liaison,
- le connecteur principal est venu de matière à une extrémité du rail de l'organe de liaison,
- les connecteurs individuels sont disposés chacun à l'extrémité inférieure d'une douille,
- chaque douille comporte sur sa face interne des moyens d'encliquetage de la buse correspondante.
- la figure 1 est une vue en perspective éclatée d'un dispositif de connexion conforme à l'invention, avant montage sur les injecteurs d'un moteur à combustion interne,
- la figure 2 est une vue en coupe transversale du dispositif de connexion conforme à l'invention, après montage sur les injecteurs du moteur à combustion interne,
- la figure 3 est une vue à plus grande échelle et en coupe partielle selon la ligne 3.3 de la figure 2.
Claims (6)
- Dispositif de connexion des injecteurs (1) d'un moteur à combustion interne, notamment d'un véhicule automobile, du type comprenant une rampe (11) d'injection de carburant munie pour chaque injecteur (1) d'une buse (12) et des moyens (20) de raccordement électrique entre un calculateur de contrôle du moteur et chaque injecteur (1), comprenant un connecteur principal (21) destiné à être relié audit calculateur et des connecteurs individuels (22) destinés à coopérer avec des connecteurs (4) complémentaires portés par les injecteurs (1), lesdits moyens (20) de raccordement comprenant également un organe de liaison (23) supportant le connecteur principal (21) et les connecteurs individuels (22) et formant un guide continu pour les câbles électriques (24) reliant lesdits connecteurs (21, 22), caractérisé en ce que l'organe de liaison (23) comprend des douilles (25) parallèles, destinées chacune au passage de la buse (12) et un rail (26) s'étendant perpendiculairement aux douilles (25) et formé par des tronçons (26a, 26b, 26c) reliant ces douilles (25) entre elles, lesdits tronçons (26a, 26b, 26c) du rail (26) communiquant les uns avec les autres par des demi-collerettes (27a, 27b, 27c, 27d) ménagées sur les douilles (25) dans le prolongement desdits tronçons (26a, 26b, 26c) pour former le guide continu des câbles électriques (24).
- Dispositifs selon la revendication 1, caractérisé en ce que l'organe de liaison (23) est en une matière plastique rigide et moulée.
- Dispositif selon la revendication 1 ou 2, caractérisé en ce que le connecteur principal (21) est fixé à une extrémité du rail (26) de l'organe de liaison (23).
- Dispositif selon la revendication 1 ou 2, caractérisé en ce que le connecteur principal (21) est venu de matière à une extrémité du rail (26) de l'organe de liaison (23).
- Dispositif selon la revendication 1, caractérisé en ce que les connecteurs individuels (22) sont disposés chacun à l'extrémité inférieure de la douille (25).
- Dispositif selon la revendication 1, caractérisé en ce que chaque douille (25) comporte sur sa face interne des moyens (28) d'encliquetage destinés à coopérer avec des moyens (18) complémentaires d'encliquetage ménagés sur la face externe de la buse (12) correspondante.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9710911A FR2767873B1 (fr) | 1997-09-02 | 1997-09-02 | Dispositif de connexion des injecteurs d'un moteur a combustion interne |
FR9710911 | 1997-09-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0900933A1 EP0900933A1 (fr) | 1999-03-10 |
EP0900933B1 true EP0900933B1 (fr) | 2002-03-27 |
Family
ID=9510686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19980402062 Expired - Lifetime EP0900933B1 (fr) | 1997-09-02 | 1998-08-14 | Dispositif de connexion des injecteurs d'un moteur à combustion interne |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0900933B1 (fr) |
DE (1) | DE69804394D1 (fr) |
FR (1) | FR2767873B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2391908A (en) * | 2003-04-10 | 2004-02-18 | Delphi Tech Inc | I.c. engine common rail fuel distribution system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4109653A1 (de) * | 1991-03-23 | 1992-09-24 | Bosch Gmbh Robert | Kontaktierungsleiste zur gemeinsamen elektrischen kontaktierung mehrerer elektrisch betaetigbarer brennstoffeinspritzventile |
FR2676782A1 (fr) | 1991-05-23 | 1992-11-27 | Sagem Allumage | Procede de support de connectique d'injecteurs de moteur a combustion interne. |
DE4131537A1 (de) * | 1991-09-21 | 1993-04-01 | Bosch Gmbh Robert | Brennstoffverteiler |
US5363825A (en) | 1993-01-27 | 1994-11-15 | Volkswagen Ag | Fuel injection arrangement for an internal combustion engine having a plurality of electric fuel injection valves |
DE19546441A1 (de) * | 1995-12-13 | 1997-06-19 | Bosch Gmbh Robert | Brennstoffverteiler |
-
1997
- 1997-09-02 FR FR9710911A patent/FR2767873B1/fr not_active Expired - Fee Related
-
1998
- 1998-08-14 EP EP19980402062 patent/EP0900933B1/fr not_active Expired - Lifetime
- 1998-08-14 DE DE69804394T patent/DE69804394D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69804394D1 (de) | 2002-05-02 |
EP0900933A1 (fr) | 1999-03-10 |
FR2767873A1 (fr) | 1999-03-05 |
FR2767873B1 (fr) | 1999-11-19 |
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