EP1264102A1 - Capsule for an injection system - Google Patents

Capsule for an injection system

Info

Publication number
EP1264102A1
EP1264102A1 EP01915244A EP01915244A EP1264102A1 EP 1264102 A1 EP1264102 A1 EP 1264102A1 EP 01915244 A EP01915244 A EP 01915244A EP 01915244 A EP01915244 A EP 01915244A EP 1264102 A1 EP1264102 A1 EP 1264102A1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
fuel
injection system
capsule
internal combustion
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.)
Granted
Application number
EP01915244A
Other languages
German (de)
French (fr)
Other versions
EP1264102B1 (en
Inventor
Wolfgang Nobis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1264102A1 publication Critical patent/EP1264102A1/en
Application granted granted Critical
Publication of EP1264102B1 publication Critical patent/EP1264102B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • 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 invention relates to an injection system according to the type mentioned in the preamble of patent claim 1.
  • the invention is based on DE 40 02 393 A1. This document shows a fuel injection system that is typically used today in motor vehicles.
  • Hydrocarbons are currently the main component of fuel for internal combustion engines. HC emissions occur in fuel injection systems due to leaks at connection points and diffusion of fuel components through plastics and elastomers such as fuel hoses and seals.
  • the task is to present a fuel injection system which guarantees consistently low HC emissions of the components close to the engine for the life of the engine and is easy to manufacture.
  • the fuel-carrying, engine-related components of a fuel injection system today consist of one or more fuel rail with fuel supply and return, at least one injection valve and at least one fuel pressure regulator and their fastening and sealing elements.
  • Repairs can be carried out in a simple manner by claim 2 on all components of the fuel injection system close to the internal combustion engine. It is not necessary to replace all components close to the internal combustion engine in the event of defects in order to ensure system tightness. By claim 3, repairs are even easier and cheaper, since the lid can be assembled several times.
  • Well-known and commercially available materials such as silicone rubber or polyurethane rubber are again used as sealing materials.
  • a positive aspect of claim 4 is that no hydrocarbons that have diffused out of the fuel injection system near the internal combustion engine accumulate in the interior of the capsule, since during operation of the internal combustion engine these are immediately sucked off by the negative pressure in the suction channel and fed to the internal combustion engine for combustion.
  • connection points are particularly susceptible to leaks due to, for example, mechanical vibrations or thermal voltages.
  • known and commercially available materials such as silicone rubber or polyurethane rubber are used as sealing materials.
  • Suction system and housing are made from the same material in just one operation, for example using the injection molding process. This solution is particularly economical.
  • Fig. 1 Components of a fuel injection system close to the internal combustion engine
  • Fig. 2 sectional drawing of an encapsulated fuel injection system.
  • FIG. 1 shows the components of a fuel injection system that are usually used for an internal combustion engine today. These consist of a fuel distribution channel 1, with a fuel inlet 2 and a fuel outlet 3, a fuel pressure regulator 4 and four fuel injection valves 5, 5 ' . Each fuel injection valve 5, 5 ' is fastened to the fuel rail 1 with a fastening element 6, 6 ' . The electrical control takes place via an electrical feed line 7. In the vicinity of the fuel outlet nozzle 8, 8 ' , a sealing element 9, 9 ' also serves to mechanically fasten the system.
  • FIG. 2 shows a sectional drawing through an encapsulated fuel injection system close to the internal combustion engine.
  • the fuel distributor duct 1 is installed with the fuel injection valve 5 in a suction duct 10 of an internal combustion engine, not shown here.
  • the fuel injection valve 5 is pressed with the fastening element 6 into the fuel distribution channel 1 and with the sealing element 9 into a bore 11 of the suction channel 10.
  • the electrical supply line 7 is connected to the fuel injection valve 5 by a non-visible detachable connection.
  • a capsule 12 encloses the components of the fuel injection system that are close to the internal combustion engine, including those that cannot be seen here, such as the fuel inlet, fuel outlet and fuel pressure regulator.
  • the capsule 12 is essentially formed from the suction channel 10, a housing 13 and a cover 14.
  • the housing 13 is made in one piece with the suction channel 10.
  • Between housing 13 and cover 14 is a circumferential sealing plane with seal 15.
  • the connection between housing 13 and cover 14 is detachable, so that repairs to the components of the fuel injection system near the engine can be carried out at any time.
  • the interior is connected to the suction channel 10 by a hollow profile 16.
  • the capsule 12 and all seals are diffusion-tight for hydrocarbons.
  • a further embodiment variant is to fasten the capsule 12 and the necessary seals to a cylinder head in order to minimize the HC emissions even with injection close to the cylinder or direct injection into the combustion chamber.

Landscapes

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

Abstract

The aim of the invention is to reduce hydrocarbon emissions (HC emissions) of motor vehicles. According to the invention, the HC emissions that are deposited by the components of a fuel injection system are reduced by arranging all components of the fuel injection system which consists of at least one fuel distribution channel (1) having a fuel inlet and a fuel outlet and at least one fuel injection valve (5) having an electric supply line (7) are arranged in a capsule (12), whereby said components are situated in the proximity of the internal combustion engine. Said capsule (12) and all sealings are diffusion-proof against hydrocarbons.

Description

Kapsel für ein EinspritzsystemCapsule for an injection system
Die Erfindung betrifft ein Einspritzsystem gemäß der im Oberbegriff des Patentan- spruchs 1 genannten Art.The invention relates to an injection system according to the type mentioned in the preamble of patent claim 1.
Die Erfindung geht aus von der DE 40 02 393 A1. In dieser Schrift ist ein heute in Kraftfahrzeugen typischerweise verwendetes Kraftstoffeinspritzsystem dargestellt.The invention is based on DE 40 02 393 A1. This document shows a fuel injection system that is typically used today in motor vehicles.
Durch die zukünftige Gesetzgebung wird die zulässige Kohlenwasserstoff-Emission (HC-Emissionen) von Kraftfahrzeugen stark eingeschränkt.Future legislation will severely limit the permissible hydrocarbon emissions (HC emissions) from motor vehicles.
Kohlenwasserstoffe sind derzeit der Hauptbestandteil von Brennstoff für Brennkraftmaschinen. An Kraftstoffeinspritzsystemen entstehen HC-Emissionen durch Undichtigkeiten an Verbindungsstellen und Diffusion von Kraftstoffbestandteilen durch Kunststoffe und Elastomere wie beispielsweise Kraftstoffschläuchen und Dichtungen hindurch.Hydrocarbons are currently the main component of fuel for internal combustion engines. HC emissions occur in fuel injection systems due to leaks at connection points and diffusion of fuel components through plastics and elastomers such as fuel hoses and seals.
Um diese Emissionen zu reduzieren werden Leitungen, Schläuche, Membranen und Dichtungen soweit wie möglich durch metallische Varianten ersetzt und/oder hö- herwertiger, das heißt diffusionsdichter ausgeführt und ihre Zahl bzw. Längen soweit wie möglich reduziert. Nachteilig wirkt sich bei einem Kraftstoffeinspritzsystem, wie in der DE 40 02 393 beschrieben, aus, dass bei Reparaturen Verbindungen gelöst und wiederhergestellt werden müssen und dadurch, auch bei Verwendung neuer Dichtelemente und Schläuche, eine Erhöhung der HC-Emission möglich ist.In order to reduce these emissions, lines, hoses, membranes and seals are replaced as far as possible by metallic variants and / or of higher quality, that is to say made more diffusion-proof and their number or lengths reduced as much as possible. A disadvantage of a fuel injection system, as described in DE 40 02 393, is that connections have to be loosened and restored in the event of repairs and, as a result, an increase in HC emissions is possible, even when using new sealing elements and hoses.
Aufgabe ist es, ein Kraftstoffeinspritzsystem darzustellen, welches für die Laufzeit der Brennkraftmaschine gleichbleibend niedrige HC-Emissionen der brennkraftma- schinennahen Komponenten gewährleistet und einfach herstellbar ist.The task is to present a fuel injection system which guarantees consistently low HC emissions of the components close to the engine for the life of the engine and is easy to manufacture.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Patentanspruchs 1 gelöst.This object is achieved by the features of claim 1.
Die brennstoffführenden, brennkraftmaschinennahen Komponenten eines Kraftstoffeinspritzsystems setzen sich heute aus einer oder mehreren Kraftstoffvertei- lerleisten mit Kraftstoffzulauf und Kraftstoffrücklauf, mindestens einem Einspritzventil und mindestens einem Kraftstoffdruckregler und deren Befestigungs- und Dichtelemente zusammen.The fuel-carrying, engine-related components of a fuel injection system today consist of one or more fuel rail with fuel supply and return, at least one injection valve and at least one fuel pressure regulator and their fastening and sealing elements.
Besonders vorteilhaft zeigt sich bei dieser Lösung, dass alle bisher eingesetzten Werkstoffe und Technologien für heute verwendete Kraftstoffeinspritzsysteme weiterhin verwendet werden können. Hierdurch werden Entwicklungszeiten und Entwicklungsgelder für neue Entwicklungstätigkeiten gespart. Das bedeutet auch, dass die bisher eingesetzten Kraftstoff-Einspritzanlagen entweder in unveränderter oder in nur minimal abgeänderter Form weiterhin in die Fahrzeuge eingebaut oder ver- baut werden können. Durch den Einsatz von bisher bekannten Werkstoffen und Technologien werden zukünftige Qualitätsrisiken und damit auch Qualitätskosten reduziert oder ganz vermieden. Als Gehäuse- und Deckelmatehai werden die heute für Sauganlagen üblichen Kunststoffe eingesetzt, deren Dauerhaltbarkeit und Dauerdichtigkeit bereits hervorragend bekannt sind.This solution is particularly advantageous in that all the materials and technologies previously used can continue to be used for fuel injection systems used today. This saves development times and development funds for new development activities. This also means that the fuel injection systems used to date can continue to be installed or installed in the vehicles in either unchanged or only minimally modified form. The use of previously known materials and technologies will reduce or completely avoid future quality risks and thus quality costs. The plastic and casing mat shark used today are the plastics commonly used for suction systems, the durability and tightness of which are already well known.
Reparaturen sind durch Anspruch 2 problemlos an allen brennkraftmaschinennahen Komponenten des Kraftstoffeinspritzsystems in einfacher Weise durchführbar. Der Austausch sämtlicher brennkraftmaschinennahen Komponenten bei Defekten ist zur Sicherstellung der Systemdichtheit ist nicht notwendig. Durch Anspruch 3 werden Reparaturen nochmals einfacher und kostengünstiger, da der Deckel mehrmals montiert werden kann. Als Dichtungsmateriaiien kommen wieder bereits bekannte und handelsübliche Materialien wie Silikon-Kautschuk oder Polyurethan-Kautschuk zum Einsatz.Repairs can be carried out in a simple manner by claim 2 on all components of the fuel injection system close to the internal combustion engine. It is not necessary to replace all components close to the internal combustion engine in the event of defects in order to ensure system tightness. By claim 3, repairs are even easier and cheaper, since the lid can be assembled several times. Well-known and commercially available materials such as silicone rubber or polyurethane rubber are again used as sealing materials.
Positiv gestaltet sich nach Anspruch 4, dass sich keine aus dem brennkraftmaschinennahen Kraftstoffeinspritzsystem ausdiffundierten Kohlenwasserstoffe im Innenraum der Kapsel ansammeln, da diese beim Betrieb der Brennkraftmaschine durch den Unterdruck im Saugkanal sofort abgesaugt und zur Verbrennung der Brenn- kraftmaschine zugeführt werden.A positive aspect of claim 4 is that no hydrocarbons that have diffused out of the fuel injection system near the internal combustion engine accumulate in the interior of the capsule, since during operation of the internal combustion engine these are immediately sucked off by the negative pressure in the suction channel and fed to the internal combustion engine for combustion.
HC-Emissionen, aus Öffnungen in der Kapsel, aus denen Komponenten des Kraftstoffeinspritzsystems herausgeführt sind, werden durch Anspruch 5 verhindert. Diese Verbindungsstellen sind für Undichtigkeiten aufgrund von beispielsweise mecha- nischen Schwingungen oder Thermospannungen besonders anfällig. Als Dichtungsmaterialien kommen beispielsweise bekannte und handelsübliche Materialien wie Silikon-Kautschuk oder Polyurethan-Kautschuk zum Einsatz.HC emissions from openings in the capsule from which components of the fuel injection system are led out are prevented by claim 5. These connection points are particularly susceptible to leaks due to, for example, mechanical vibrations or thermal voltages. For example, known and commercially available materials such as silicone rubber or polyurethane rubber are used as sealing materials.
Nach Anspruch 6 werden Herstell- und Montagekosten eingespart. Sauganlage und Gehäuse werden aus dem selben Material in nur einem Arbeitsgang, zum Beispiel im Spritzgußverfahren, hergestellt. Diese Lösung zeichnet sich durch besondere Wirtschaftlichkeit aus.According to claim 6 manufacturing and assembly costs are saved. Suction system and housing are made from the same material in just one operation, for example using the injection molding process. This solution is particularly economical.
Nach Anspruch 7 ist besonders vorteilhaft, dass auch direkt einspritzende Brenn- kraftmaschinen, bei denen die Kraftstoffeinspritzventile direkt am Kopf verbaut sind, mit einer solchen einfachen Lösung aus- und nachgerüstet werden können, wodurch auch hier Herstell- und Entwicklungskosten gespart werden.According to claim 7, it is particularly advantageous that direct-injection internal combustion engines, in which the fuel injection valves are installed directly on the head, can be equipped and retrofitted with such a simple solution, as a result of which manufacturing and development costs are also saved here.
Im folgenden wird die Erfindung anhand eines bevorzugten Ausführungsbeispieles in zwei Zeichnungen näher erläutert. Es zeigen im einzelnen:The invention is explained in more detail below with the aid of a preferred exemplary embodiment in two drawings. The individual shows:
Fig. 1 : brennkraftmaschinennahe Komponenten eines Kraftstoffeinspritzsys- tems; Fig. 2: Schnittzeichnung eines gekapselten Kraftstoffeinspritzsystems.1: Components of a fuel injection system close to the internal combustion engine; Fig. 2: sectional drawing of an encapsulated fuel injection system.
Fig. 1 zeigt die heute üblicherweise für eine Brennkraftmaschine verwendeten brennkraftmaschinennahen Komponenten eines Kraftstoffeinspritzsystems. Diese bestehen aus einem Kraftstoffverteilerkanal 1 , mit einem Kraftstoffzulauf 2 und einem Kraftstoffablauf 3, einem Kraftstoffdruckregler 4 und vier Kraftstoffeinspritzventilen 5, 5'. Jedes Kraftstoffeinspritzventil 5, 5' ist mit einem Befestigungselement 6, 6' an den Kraftstoffverteilerkanal 1 befestigt. Die elektrische Ansteuerung erfolgt über eine elektrische Zuleitung 7. In der Nähe der Kraftstoffaustrittsdüse 8, 8' dient ein Dichtelement 9, 9' zusätzlich zur mechanischen Befestigung des Systems.1 shows the components of a fuel injection system that are usually used for an internal combustion engine today. These consist of a fuel distribution channel 1, with a fuel inlet 2 and a fuel outlet 3, a fuel pressure regulator 4 and four fuel injection valves 5, 5 ' . Each fuel injection valve 5, 5 ' is fastened to the fuel rail 1 with a fastening element 6, 6 ' . The electrical control takes place via an electrical feed line 7. In the vicinity of the fuel outlet nozzle 8, 8 ' , a sealing element 9, 9 ' also serves to mechanically fasten the system.
Für Fig. 2, die eine Schnittzeichnung durch ein gekapseltes brennkraftmaschinen- nahes Kraftstoffeinspritzsystem zeigt, gelten die Bezugszeichen aus Fig. 1. Der Kraftstoffverteilerkanal 1 ist mit dem Kraftstoffeinspritzventil 5 in einen Saugkanal 10 einer hier nicht dargestellten Brennkraftmaschine eingebaut. Das Kraftstoffeinspritzventil 5 ist mit dem Befestigungselement 6 in den Kraftstoffverteilerkanal 1 und mit dem Dichtelement 9 in eine Bohrung 1 1 des Saugkanals 10 eingepreßt. Die elektrische Zuleitung 7 ist mit dem Kraftstoffeinspritzventil 5 durch eine nicht sicht- bare lösbare Verbindung verbunden.The reference numerals from FIG. 1 apply to FIG. 2, which shows a sectional drawing through an encapsulated fuel injection system close to the internal combustion engine. The fuel distributor duct 1 is installed with the fuel injection valve 5 in a suction duct 10 of an internal combustion engine, not shown here. The fuel injection valve 5 is pressed with the fastening element 6 into the fuel distribution channel 1 and with the sealing element 9 into a bore 11 of the suction channel 10. The electrical supply line 7 is connected to the fuel injection valve 5 by a non-visible detachable connection.
Eine Kapsel 12 umschließt die brennkraftmaschinennahen Komponenten des Kraft- stoffeinspritzsystems, auch die hier nicht erkennbaren, wie Kraftstoffzulauf, Kraft- stoffablauf und Kraftstoffdruckregler. Die Kapsel 12 wird im wesentlichen aus dem Saugkanal 10, einem Gehäuse 13 und einem Deckel 14 gebildet. Das Gehäuse 13 ist einstückig mit dem Saugkanal 10 hergestellt. Zwischen Gehäuse 13 und Deckel 14 ist eine umlaufende Dichtebene mit Dichtung 15. Die Verbindung von Gehäuse 13 und Deckel 14 ist lösbar, damit jederzeit eine Reparatur an den brennkraftmaschinennahen Komponenten des Kraftstoffeinspritzsystems durchgeführt werden kann. Um höhere HC-Konzentrationen im Innenraum der Kapsel 12 zu vermeiden, ist der innenraum durch ein Hohlprofil 16 mit dem Saugkanal 10 verbunden. Die Kapsel 12 und sämtliche Abdichtungen sind für Kohlenwasserstoffe diffusionsdicht. Eine weitere Ausgestaltungsvariante besteht darin, die Kapsel 12 und die notwendigen Abdichtungen an einen Zylinderkopf zu befestigen, um auch bei zylindernaher Einspritzung oder direkter Einspritzung in den Breπnraum die HC-Emissionen zu minimieren. A capsule 12 encloses the components of the fuel injection system that are close to the internal combustion engine, including those that cannot be seen here, such as the fuel inlet, fuel outlet and fuel pressure regulator. The capsule 12 is essentially formed from the suction channel 10, a housing 13 and a cover 14. The housing 13 is made in one piece with the suction channel 10. Between housing 13 and cover 14 is a circumferential sealing plane with seal 15. The connection between housing 13 and cover 14 is detachable, so that repairs to the components of the fuel injection system near the engine can be carried out at any time. In order to avoid higher HC concentrations in the interior of the capsule 12, the interior is connected to the suction channel 10 by a hollow profile 16. The capsule 12 and all seals are diffusion-tight for hydrocarbons. A further embodiment variant is to fasten the capsule 12 and the necessary seals to a cylinder head in order to minimize the HC emissions even with injection close to the cylinder or direct injection into the combustion chamber.
BezuqszeichenlisteLIST OF REFERENCES
1 Kraftstoffverteilerkanal1 fuel rail
KraftstoffzulaufFuel supply
KraftstoffablaufFuel outlet
Kraftstoffdruckregler , 5' Kraftstoffeinspritzventil , 6' BefestigungselementFuel pressure regulator, 5 'fuel injector, 6 ' fastener
Elektrische Zuleitung , 8' Kraftstoff a ustrittsd ü s e , 9' Dichtelement 0 Saugkanal 1 Bohrung 2 Kapsel 3 Gehäuse 4 Deckel 5 Dichtebene mit Dichtung 6 Hohlprofil Electrical supply line, 8 ' fuel outlet nozzle, 9 ' sealing element 0 suction channel 1 bore 2 capsule 3 housing 4 cover 5 sealing level with seal 6 hollow profile

Claims

Patentansprüche claims
1. Kraftstoffeinspritzsystem für eine Brennkraftmaschine mit einem Kraftstoffverteilerkanal, der über einen Kraftstoffzulauf und Kraftstoffablauf verfügt und an dem mindestens ein Kraftstoffeinspritzventil angeordnet ist, dadurch gekennzeichnet, dass alle brennkraftmaschinennahen Komponenten des Kraftstoffeinspritzsystems in einer für Kohlenwasserstoff diffusionsdichten Kapsel (12) angeordnet sind.1. Fuel injection system for an internal combustion engine with a fuel distribution channel, which has a fuel inlet and fuel outlet and on which at least one fuel injection valve is arranged, characterized in that all components of the fuel injection system near the engine are arranged in a capsule (12) which is diffusion-proof for hydrocarbon.
2. Kraftstoffeinspritzsystem nach Anspruch 1 , dadurch gekennzeichnet, dass die Kapsel (12) aus einem Gehäuse (13) und einem Deckel (14) zusammengesetzt ist.2. Fuel injection system according to claim 1, characterized in that the capsule (12) is composed of a housing (13) and a cover (14).
3. Kraftstoffeinspritzsystem nach einem der zuvor genannten Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (13) mit dem Deckel (14) über eine lösbare, für Kohlenwasserstoffe diffusionsdichte Verbindung, verschlossen ist.3. Fuel injection system according to one of the preceding claims, characterized in that the housing (13) with the cover (14) is closed via a detachable connection which is diffusion-tight for hydrocarbons.
4. Kraftstoffeinspritzsystem nach Anspruch 1 , dadurch gekennzeichnet, dass der Innenraum der Kapsel (12) über mindestens ein, für Kohlenwasserstoffe diffusionsdichtes Hohlprofil (16), mit mindestens einem Saugkanal (10) der Brennkraftmaschine verbunden ist.4. The fuel injection system according to claim 1, characterized in that the interior of the capsule (12) is connected to at least one suction channel (10) of the internal combustion engine via at least one hollow profile (16) which is diffusion-tight for hydrocarbons.
5. Kraftstoffeinspritzsystem nach einem der zuvor genannten Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (13) und der Deckel (14), gegenüber allen, aus ihnen herausgeführten Komponenten, für Kohlenwasserstoffe diffusionsdicht abgedichtet ist5. Fuel injection system according to one of the preceding claims, characterized in that the housing (13) and the cover (14) are sealed diffusion-tight for hydrocarbons from all components led out of them
Kraftstoffeinspritzsystem nach einem der zuvor genannten Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (13) einstuckig mit einer Sauganlage für eine Brennkraftmaschine istFuel injection system according to one of the preceding claims, characterized in that the housing (13) is in one piece with a suction system for an internal combustion engine
Kraftstoffeinspritzsystem nach einem der zuvor genannten Ansprüche, dadurch gekennzeichnet, dass das Gehäuse (13) an einen Zylinderkopf einer Brennkraftmaschine, für Kohlenwasserstoffe diffusionsdicht, anordbar Fuel injection system according to one of the preceding claims, characterized in that the housing (13) can be arranged on a cylinder head of an internal combustion engine, diffusion-tight for hydrocarbons
EP01915244A 2000-03-16 2001-02-14 Capsule for an injection system Expired - Lifetime EP1264102B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10012834A DE10012834A1 (en) 2000-03-16 2000-03-16 Fuel injection system for IC engine comprising fuel distribution pipe, fuel inlet and outlet and injection valves has all these components enclosed in housing which is impermeable to hydrocarbons
DE10012834 2000-03-16
PCT/EP2001/001616 WO2001069077A1 (en) 2000-03-16 2001-02-14 Capsule for an injection system

Publications (2)

Publication Number Publication Date
EP1264102A1 true EP1264102A1 (en) 2002-12-11
EP1264102B1 EP1264102B1 (en) 2005-12-21

Family

ID=7634962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01915244A Expired - Lifetime EP1264102B1 (en) 2000-03-16 2001-02-14 Capsule for an injection system

Country Status (3)

Country Link
EP (1) EP1264102B1 (en)
DE (2) DE10012834A1 (en)
WO (1) WO2001069077A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006035296B4 (en) * 2006-07-31 2009-02-19 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Method and device for checking the tightness of the components of a fuel injection system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1024700B (en) * 1974-10-28 1978-07-20 Fiat Spa IMPROVEMENTS IN THE CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINES OF THE DIESEL CYCLE TYPE
JPS61226555A (en) * 1985-03-29 1986-10-08 Hitachi Ltd Fuel injector/feeder associated with atomizer
DE4002393A1 (en) 1990-01-27 1991-08-01 Bosch Gmbh Robert FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES
DE4329774A1 (en) * 1993-09-03 1995-03-09 Bosch Gmbh Robert Device for the fixing and securing of a valve
US5353767A (en) * 1993-12-17 1994-10-11 General Motors Corporation Fuel and air induction system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0169077A1 *

Also Published As

Publication number Publication date
DE10012834A1 (en) 2001-09-27
EP1264102B1 (en) 2005-12-21
WO2001069077A1 (en) 2001-09-20
DE50108461D1 (en) 2006-01-26

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