EP0813651B1 - Brennstoffeinspritzsystem - Google Patents
Brennstoffeinspritzsystem Download PDFInfo
- Publication number
- EP0813651B1 EP0813651B1 EP96945492A EP96945492A EP0813651B1 EP 0813651 B1 EP0813651 B1 EP 0813651B1 EP 96945492 A EP96945492 A EP 96945492A EP 96945492 A EP96945492 A EP 96945492A EP 0813651 B1 EP0813651 B1 EP 0813651B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel injection
- fuel
- injection system
- plastic
- intake pipe
- 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
- 239000000446 fuel Substances 0.000 title claims abstract description 148
- 238000002347 injection Methods 0.000 title claims abstract description 74
- 239000007924 injection Substances 0.000 title claims abstract description 74
- 238000002485 combustion reaction Methods 0.000 claims abstract description 17
- 238000005538 encapsulation Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims 3
- 230000010354 integration Effects 0.000 abstract description 4
- 230000008030 elimination Effects 0.000 abstract description 3
- 238000003379 elimination reaction Methods 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract 1
- 238000001746 injection moulding Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 206010010774 Constipation Diseases 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
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- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
-
- 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
- F02M69/04—Injectors peculiar thereto
- F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
- F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10072—Intake runners
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
- F02M35/10216—Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10314—Materials for intake systems
- F02M35/10321—Plastics; Composites; Rubbers
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1034—Manufacturing and assembling intake systems
- F02M35/10347—Moulding, casting or the like
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
- F02M35/112—Intake manifolds for engines with cylinders all in one line
-
- 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
- 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
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
- F02M51/0682—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto the body being hollow and its interior communicating with the 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
- F02M61/145—Arrangements of injectors with respect to engines; Mounting of injectors the injection nozzle opening into the air intake conduit
-
- 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
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
-
- 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
- F02M69/04—Injectors 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
- 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
-
- 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
- F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
- F02M2200/505—Adjusting spring tension by sliding spring seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/08—Thermoplastics
Definitions
- the invention is based on a fuel injection system according to the genus of the main claim.
- a fuel injection system is already known that a cylinder head of an internal combustion engine is mountable.
- This fuel injection system includes several Intake lines that isolate into structure-borne noise elastic connecting pipe element open, which in turn with a flange is formed on the cylinder head side, with the a fixed connection to the cylinder head is realized.
- the elastic connecting pipe element which is preferably made of is made of an elastomeric plastic partially on the suction lines and also has one sleeve-shaped receptacle for a fuel injector.
- the receptacle is in one piece with the connecting tube element executed and surrounds the fuel injector in the installed condition over almost its entire Extension length. So the fuel injection system is formed in several parts, the complete Fuel injector is mounted in the receptacle that thus a holding device for the Fuel injector represents. The recording is included designed so that the outer contour of the Fuel injector is largely true to form.
- EP-OS 0 501 612 is already a Fuel injection system known, the multi-part Has suction pipes that have flanges at their ends, with which they are interconnected.
- the intake pipes are made of either aluminum or plastic and have next to their actual flow passages Receiving areas for fuel injectors.
- This Recording areas each surround one Fuel injector largely with radial clearance, there z.
- B. the fuel supply via the receiving areas to the so-called side feed injectors trained fuel injectors.
- the Fuel injectors only become complete installed in these receiving areas.
- a seal of the fuel injector in the Receiving areas must have at least two sealing rings respectively.
- WO 92/02727 A is already a Fuel injection system for an internal combustion engine known that at least one intake pipe and at least one Includes fuel injector.
- the Fuel injector is known with all Valve components equipped and at least partially by surrounded by a plastic encapsulation. Always done mounted fuel injector is in a to the Intake pipes provided valve seat used.
- the Valve receptacles are also integral to one Plastic component comprising intake pipes.
- the Fuel injector is therefore an overall component can be assembled and disassembled in a valve seat.
- Embodiments of the invention are in the drawing shown in simplified form and in the following Description explained in more detail. It shows figure linen partial section through an inventive Fuel injection system, Figure 2 a Fuel injection system with single connector Fuel injectors and Figure 3 a Fuel injection system with a central plug.
- FIG. 1 shows a partial section through Fuel injection system, among other things, at least one Fuel injector 1 comprises, which Fuel injection system especially as part of one Fuel injection system from mixture-compressing, spark ignition internal combustion engines is used.
- In 1 is only one fuel injector on average 1 in connection with a single suction pipe Intake pipe 3 shown, the one not shown Combustion chamber of the internal combustion engine leads.
- fuel injection system is usually for one MPI (multi-point injection) may be provided, in which, for. B. each combustion chamber of the internal combustion engine Fuel injector 1 is assigned.
- a Internal combustion engine with four combustion chambers (4-cylinder engine) so run z. B. in the fuel injection system four Intake pipes 3 in the direction of the combustion chambers, one each Fuel injection valve 1 opens into an intake pipe 3.
- Fuel injectors 1 for use in the Fuel injection system according to the invention are for Example so-called top feed injectors suitable at which the fuel supply through the intake manifold opposite end occurs.
- top feed injectors suitable at which the fuel supply through the intake manifold opposite end occurs.
- DE-OS 43 25 842 is already known, with differences of course in Area of plastic extrusion through the design of the fuel injection system according to the invention.
- Other types of already known injection valves can also be used in the fuel injection system.
- the fuel injector 1 is actuated in known manner z. B. electromagnetic.
- the Fuel injector 1 therefore has one electromagnetic circuit with a Solenoid 5, one as a fuel inlet connector and Inner pole serving core 6 and an armature 7. Downstream the solenoid 5 extends a valve seat support 8, the partially the housing of the fuel injector 1 forms.
- a Valve needle 9 arranged at its upstream end with the armature 7 and at its downstream end with a Valve closing body 10 is firmly connected.
- the electromagnetic circuit is used for the injection valve.
- a Valve seat body 12 tightly mounted, of a fixed Has valve seat, with which in turn Valve closing body 10 cooperates.
- the fuel to be sprayed is, for example, via a pot-shaped spray plate 14 metered with the fixed is connected to the valve seat body 12 and at least one, for example four formed by eroding or stamping Has spray openings.
- On the immediately downstream End of the valve seat carrier 8 is, for. B. a protective cap 15 arranged.
- the magnet coil 5 is of at least one, z. B. trained as a bracket and as a ferromagnetic Element serving guide element 16 surrounding the Magnetic coil 5 at least partially surrounds in the circumferential direction and with its two ends on the core 6 and Valve seat support 8 abuts and firmly connected to them is.
- a fuel filter 19 for filtering out Fuel constituents causing constipation and a Adjustment sleeve 20 for adjusting the spring preload Return spring 11 is provided.
- the fuel injector 1 is not as before known with a plastic encapsulation as one in one Inclusion of a fuel injection system that can be installed Component in front, but is directly in the Fuel injection system integrated according to the invention.
- a plastic casing 25 in one piece with the intake pipes 3 as a compact Fuel injection system is designed and therefore also in a plastic injection molding process is produced.
- this Plastic jacket 25 also belongs to, for example each fuel injector 1 is provided co-molded electrical connector 26.
- a fuel distributor 28 is also directly in the Fuel injection system provided, which is ultimately direct from the plastic jacket 25 of Fuel injector 1 is formed.
- a fuel distributor 28 is also directly in the Fuel injection system provided, which is ultimately direct from the plastic jacket 25 of Fuel injector 1 is formed.
- At the Injection molding is immediate in the injection mold above the inlet end of the Fuel injector 1 a across the Longitudinal valve axes 29 of fuel injection valves 1 extending injection molding core provided by the after Remove a fuel supply channel 30 for the Fuel injection valves 1 in the plastic casing 25 is formed.
- Fuel supply channel 30 has, for example circular cross-section, the wall of the Fuel supply channel 30 plastic with a largely constant wall thickness is present.
- the plastic jacket 25 with different Wall thicknesses should be formed depending on the Installation requirements.
- the insertion depth determines this of the valve seat body 12 in the valve seat support 8 the size of the Strokes of the valve needle 9.
- An end position of the valve needle 9 is when the solenoid 5 is not excited by the system of Valve closing body 10 on the valve seat of the valve seat body 12 set; the other end position of the valve needle 9 results when the solenoid 5 is excited by the system of Anchor 7 on the core 6.
- the spring tension on the Valve needle 9 supporting return spring 11 is how already mentioned, adjusted by the adjusting sleeve 20.
- the Sealing the solenoid 5 against that Fuel supply channel 30 takes place, for. B. over several Perimeter of core 6 near fuel rail 28 provided annular circumferential ribs 32, the one form so-called labyrinth seals. On the other hand, could also an ordinary one arranged on the circumference of the core 6 Be molded around.
- the downstream area is 24 of fuel injector 1 exposed, d. H. there is no valve seat support 8 there Plastic. Rather, this area 24 projects into one Side mouth 33 of the intake pipe 3, for example one has circular cross section.
- the Fuel injector 1 is z. B. aligned so that the fuel to be sprayed off essentially directly an intake valve, not shown, in the cylinder head Internal combustion engine aims. It is also conceivable that Fuel injector 1 extended and it thus allowing the side mouth 33 to protrude completely, the spray end of the fuel injector 1 to reaches into the intake pipe 3, as the dashed lines to hint.
- FIGs 2 and 3 schematically show exemplary embodiments of the fuel injection system as a compact component Attachment to the cylinder head of the internal combustion engine.
- the Intake pipes 3 end on a mounting flange 37, the z. B. has several openings 38 in the Fasteners for connecting the Fuel injection system insertable with the cylinder head are.
- the individual fuel injection valves 1 are at the embodiment shown in Figure 2 separately contacted each other, d. H. each Fuel injector 1 has its own Connector 26, the z. B. the one in FIG can have the shape shown.
- the intake pipes 3 run as so-called swing pipes at least in the described Fuel injection system separately and together form one Intake manifold.
- the fuel rail 28 extends with its inner fuel supply channel 30 along of all fuel injectors 1, so that a simultaneous fuel supply for everyone Fuel injection valves 1 is possible.
- the fuel distributor 28 has a connection element 40 on.
- the connecting element 40 is z. B. in the form of a Nozzle trained, on which a not shown Fuel supply hose can be attached, or represents a so-called "quick connector" with which Bayonet-like quick connections can be achieved.
- FIG. 3 shows an embodiment of the Fuel injection system shown in which the electrical contacting of the individual Fuel injection valves 1 via a contact rail 41 takes place, all the fuel injection valves 1 with each other combines.
- the contact rail 41 which is directly at Injection molding of the fuel injection system is also provided and is completely encapsulated by plastic, has a central plug 42 at one contacting end, the z. B. with four to be contacted Fuel injection valves 1 is designed five poles.
- the Number of 41 provided in the contact rail electrical lines 43 decrease with each Fuel injector 1 by one to Central connector 42 furthest away Fuel injector 1, two more electric Lead lines 43.
- the contact rail 41 and the Fuel distributors 28 are by no means in FIG. 3 shown to scale and need not be separate run side by side or one above the other. Rather it is of advantage, the electrical lines 43 immediately in or to integrate the fuel distributor 28, so that only a transverse to the fuel injection valves 1 Plastic connector is present.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
- Wegfall der eigentlichen Kunststoffumspritzung am Brennstoffeinspritzventil,
- Wegfall eines Bauteils zur Brennstoffversorgung (Brennstoffverteiler),
- Wegfall von mehreren Verbindungselementen (Sicherungsringe, Schrauben und anderes),
- Wegfall von verschiedenen Dichtungselementen (O-Ringe),
- Wegfall mehrerer Montagevorgänge aufgrund der Einteiligkeit.
Claims (9)
- Brennstoffeinspritzsystem für eine Brennkraftmaschine, mit wenigstens einem Ansaugrohr und mit wenigstens einem Brennstoffeinspritzventil, das von einer Kunststoffummantelung (25) unmittelbar umgeben ist, wobei die Kunststoffummantelung (25) einteilig mit dem wenigstens einen Ansaugrohr (3) ausgebildet ist und außerdem einen Brennstoffversorgungskanal (30) für das wenigstens eine Brennstoffeinspritzventil (1) umschließt, dadurch gekennzeichnet, daß die Kunststoffummantelung als Kunststoffumspritzung des Brennstoffeinspritzventils (1) ausgebildet ist.
- Brennstoffeinspritzsystem nach Anspruch 1, dadurch gekennzeichnet, daß die Kunststoffumspritzung (25) einen Befestigungsflansch (37) aufweist, mit dem das Brennstoffeinspritzsystem an einem Zylinderkopf der Brennkraftmaschine befestigbar ist und an dem das wenigstens eine Ansaugrohr (3) endet.
- Brennstoffeinspritzsystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß mindestens zwei Brennstoffeinspritzventile (1) vorgesehen sind, denen jeweils ein Ansaugrohr (3) zugeordnet ist und jedes Ansaugrohr (3) getrennt von den anderen Ansaugrohren (3) ausgebildet ist.
- Brennstoffeinspritzsystem nach Anspruch 3, dadurch gekennzeichnet, daß quer zu den Ventillängsachsen (29) der mindestens zwei Brennstoffeinspritzventile (1) der Brennstoffversorgungskanal (30) verlauft, der mit dem ihn umhüllenden Kunststoff einen Brennstoffverteiler (28) bildet, der direkt aus der Kunststoffumspritzung (25) der Brennstoffeinspritzventile (1) hervorgeht.
- Brennstoffeinspritzsystem nach Anspruch 1, dadurch gekennzeichnet, daß jedes einzelne Brennstoffeinspritzventil (1) zu dessen elektrischer Kontaktierung einen mit der Kunststoffumspritzung (25) einteilig ausgebildeten Anschlußstecker (26) aufweist.
- Brennstoffeinspritzsystem nach Anspruch 1, dadurch gekennzeichnet, daß alle Brennstoffeinspritzventile (1) mit elektrischen Leitungen (43) einer Kontaktschiene (41) verbunden sind, über die die elektrische Kontaktierung der Brennstoffeinspritzventile (1) erfolgt, wobei die Kontaktschiene (41) ebenfalls einteilig aus der Kunststoffumspritzung (25) hervorgeht und mit einem Zentralstecker (42) endet.
- Brennstoffeinspritzsystem nach Anspruch 4 und 6, dadurch gekennzeichnet, daß die elektrischen Leitungen (43) in dem Brennstoffverteiler (28) integriert sind.
- Brennstoffeinspritzsystem nach Anspruch 1, dadurch gekennzeichnet, daß das wenigstens eine Brennstoffeinspritzventil (1) einen als Brennstoffeinlaßstutzen und Innenpol dienenden Kern (6) hat, der das zulaufseitige, den Brennstoffversorgungskanal (30) zugewandte Ende des Brennstoffeinspritzventils (1) bildet, und der Kern (6) an seinem außeren Umfang mehrere, von der Kunststoffumspritzung (25) umschlossene, ringförmig umlaufende Rippen (32) aufweist.
- Brennstoffeinspritzsystem nach Anspruch 1, dadurch gekennzeichnet, daß ein das stromabwärtige Ende des Brennstoffeinspritzventils (1) bildender und dem Ansaugrohr (3) zugewandter Bereich (24) des Brennstoffeinspritzventils (1) nicht unmittelbar von Kunststoff umgeben ist und in eine Seitenmundung (33) des Ansaugrohrs (3) hineinreicht.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19600378A DE19600378A1 (de) | 1996-01-08 | 1996-01-08 | Brennstoffeinspritzsystem |
| DE19600378 | 1996-01-08 | ||
| PCT/DE1996/001939 WO1997025529A1 (de) | 1996-01-08 | 1996-10-11 | Brennstoffeinspritzsystem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0813651A1 EP0813651A1 (de) | 1997-12-29 |
| EP0813651B1 true EP0813651B1 (de) | 2002-03-20 |
Family
ID=7782277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96945492A Expired - Lifetime EP0813651B1 (de) | 1996-01-08 | 1996-10-11 | Brennstoffeinspritzsystem |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5934252A (de) |
| EP (1) | EP0813651B1 (de) |
| JP (1) | JP3805376B2 (de) |
| KR (1) | KR19980702840A (de) |
| AT (1) | ATE214786T1 (de) |
| DE (2) | DE19600378A1 (de) |
| WO (1) | WO1997025529A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012001076A1 (de) * | 2012-01-20 | 2013-07-25 | Veritas Ag | Verfahren zur Erhöhung einer Dauerfestigkeit eines Hohlkörpers und dazugehörigen Hohlkörper |
| DE102015209646A1 (de) * | 2015-05-27 | 2016-12-01 | Bayerische Motoren Werke Aktiengesellschaft | Kraftstoffeinspritzvorrichtung |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000018125A (ja) * | 1998-07-01 | 2000-01-18 | Mitsubishi Electric Corp | 筒内噴射用燃料噴射弁 |
| JP2000282990A (ja) * | 1999-03-31 | 2000-10-10 | Komatsu Ltd | ディーゼルエンジンの燃料配管構造 |
| DE10020616A1 (de) * | 2000-04-27 | 2001-10-31 | Pierburg Ag | Gemischbildungsanordnung für eine Brennkraftmaschine |
| US6622700B2 (en) | 2000-10-24 | 2003-09-23 | Siemens Vdo Automotive, Inc. | Integrated fuel system and wiring harness |
| JP2003065183A (ja) * | 2001-08-22 | 2003-03-05 | Sanshin Ind Co Ltd | 船外機における燃料供給装置 |
| JP2003065187A (ja) | 2001-08-22 | 2003-03-05 | Sanshin Ind Co Ltd | 船外機における燃料供給装置 |
| DE10145035A1 (de) | 2001-09-13 | 2003-04-10 | Bosch Gmbh Robert | Brennstoffeinspritzsystem |
| US6959695B2 (en) | 2001-10-17 | 2005-11-01 | Robert Bosch Corporation | Multi-point fuel injection module |
| US9635540B2 (en) * | 2002-03-25 | 2017-04-25 | Jeffrey D. Mullen | Systems and methods for locating cellular phones and security measures for the same |
| US6786203B1 (en) * | 2002-04-30 | 2004-09-07 | Siemens Vdo Automotive Corporation | Injector valve for integrated air/fuel module |
| US6840268B2 (en) * | 2002-05-23 | 2005-01-11 | Detroit Diesel Corporation | High-pressure connector having an integrated flow limiter and filter |
| EP1375895A2 (de) * | 2002-06-26 | 2004-01-02 | Robert Bosch Gmbh | Vorrichtung zur Gemischbildung im Ansaugtrakt von Verbrennungskraftmaschinen |
| US7007674B2 (en) | 2003-04-01 | 2006-03-07 | Robert Bosch Corporation | Fuel rail assembly |
| ES2634507T3 (es) * | 2004-05-13 | 2017-09-28 | Abb Research Ltd. | Bobina de detección de fibra óptica y sensor de corriente o de campo magnético |
| US7086385B2 (en) * | 2004-07-15 | 2006-08-08 | Siemens Vdo Automotive Corporation | Unitary fuel injector module for fuel system |
| JP2007315186A (ja) * | 2006-05-23 | 2007-12-06 | Aisan Ind Co Ltd | 燃料噴射装置 |
| FR2909731A1 (fr) * | 2006-12-08 | 2008-06-13 | Renault Sas | Procede de fabrication d'une partie de moteur concernant l' admission de comburant et moteur polycarburant et utilisation de ce moteur |
| DE112008000775A5 (de) * | 2007-04-10 | 2010-05-20 | Mahle International Gmbh | Brennkraftmaschine und Frischluftanlage |
| US9034210B2 (en) * | 2007-12-05 | 2015-05-19 | Epcos Ag | Feedstock and method for preparing the feedstock |
| US20090148802A1 (en) * | 2007-12-05 | 2009-06-11 | Jan Ihle | Process for heating a fluid and an injection molded molding |
| US20090146042A1 (en) * | 2007-12-05 | 2009-06-11 | Jan Ihle | Mold comprising a ptc-ceramic |
| US20090145977A1 (en) * | 2007-12-05 | 2009-06-11 | Jan Ihle | Injection molded nozzle and injector comprising the injection molded nozzle |
| US7973639B2 (en) * | 2007-12-05 | 2011-07-05 | Epcos Ag | PTC-resistor |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3333843A1 (de) * | 1983-09-20 | 1985-04-04 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Saugrohranlage fuer eine brennkraftmaschine |
| JP2516185Y2 (ja) * | 1990-03-15 | 1996-11-06 | トヨタ自動車株式会社 | 内燃機関の燃料噴射装置 |
| US5111794A (en) * | 1990-06-29 | 1992-05-12 | Siemens Automotive L.P. | Fuel rail for bottom and side fed injectors |
| US5097594A (en) * | 1990-08-07 | 1992-03-24 | Siemens Automotive L.P. | Method of making an intake manifold/fuel rail |
| US5150842A (en) * | 1990-11-19 | 1992-09-29 | Ford Motor Company | Molded fuel injector and method for producing |
| US5189782A (en) * | 1990-12-20 | 1993-03-02 | Ford Motor Company | Method of making integrally formed and tuned fuel rail/injectors |
| GB9103833D0 (en) * | 1991-02-23 | 1991-04-10 | Jaguar Cars | Inlet manifold and fuel supply system |
| IT1252463B (it) * | 1991-07-31 | 1995-06-16 | Weber Srl | Gruppo di alimentazione per un motore a combustione interna |
| US5419297A (en) * | 1994-06-28 | 1995-05-30 | Siemens Automotive L.P. | Extended tip gasoline port fuel injector |
| US5568798A (en) * | 1995-06-08 | 1996-10-29 | Siemens Automotive Corporation | Plastic fuel rail having integrated electrical wiring |
-
1996
- 1996-01-08 DE DE19600378A patent/DE19600378A1/de not_active Withdrawn
- 1996-10-11 AT AT96945492T patent/ATE214786T1/de not_active IP Right Cessation
- 1996-10-11 US US08/913,183 patent/US5934252A/en not_active Expired - Fee Related
- 1996-10-11 DE DE59608924T patent/DE59608924D1/de not_active Expired - Lifetime
- 1996-10-11 WO PCT/DE1996/001939 patent/WO1997025529A1/de not_active Ceased
- 1996-10-11 JP JP52471397A patent/JP3805376B2/ja not_active Expired - Fee Related
- 1996-10-11 EP EP96945492A patent/EP0813651B1/de not_active Expired - Lifetime
- 1996-10-11 KR KR1019970706247A patent/KR19980702840A/ko not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012001076A1 (de) * | 2012-01-20 | 2013-07-25 | Veritas Ag | Verfahren zur Erhöhung einer Dauerfestigkeit eines Hohlkörpers und dazugehörigen Hohlkörper |
| DE102015209646A1 (de) * | 2015-05-27 | 2016-12-01 | Bayerische Motoren Werke Aktiengesellschaft | Kraftstoffeinspritzvorrichtung |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997025529A1 (de) | 1997-07-17 |
| EP0813651A1 (de) | 1997-12-29 |
| US5934252A (en) | 1999-08-10 |
| DE59608924D1 (de) | 2002-04-25 |
| JP3805376B2 (ja) | 2006-08-02 |
| ATE214786T1 (de) | 2002-04-15 |
| KR19980702840A (ko) | 1998-08-05 |
| DE19600378A1 (de) | 1997-07-10 |
| JPH11502282A (ja) | 1999-02-23 |
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