EP1446573A1 - Fuel injection system - Google Patents

Fuel injection system

Info

Publication number
EP1446573A1
EP1446573A1 EP02774400A EP02774400A EP1446573A1 EP 1446573 A1 EP1446573 A1 EP 1446573A1 EP 02774400 A EP02774400 A EP 02774400A EP 02774400 A EP02774400 A EP 02774400A EP 1446573 A1 EP1446573 A1 EP 1446573A1
Authority
EP
European Patent Office
Prior art keywords
fuel injection
section
injection system
inlet
fuel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02774400A
Other languages
German (de)
French (fr)
Inventor
Werner Berger
Martin Mueller
Andreas Glaser
Anh Tuan Hoang
Martin Buehner
Cedric Olivier
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1446573A1 publication Critical patent/EP1446573A1/en
Withdrawn legal-status Critical Current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
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • 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

Definitions

  • the invention relates to a fuel injection system for injecting fuel into an internal combustion engine according to the preamble of the main claim.
  • the fuel injection system comprises a metal fuel distributor line which is connected to at least one fuel injection valve via at least one branch line, the branch line being designed as a metal pipe and being connected to the fuel injection valve by a screw connection. Easily bendable metal is used as the branch line material.
  • a metallic thin-walled bellows in the form of a corrugated tube bellows is provided, by means of which a lateral offset between the attachment point of the branch line on the fuel distributor line and the installation position of the fuel injection valve is compensated.
  • a disadvantage of the fuel injection system known from DE-OS 28 29 057 is that the corrugated tube bellows Minimum number of corrugations required in order to be able to compensate for tolerances of the overall length, as well as tilting of the axes of the fuel injector and the starting point of the fuel distribution line.
  • the angle compensation (angular compensation) and the lateral compensation (lateral compensation) require a minimum length of the corrugated pipe bellows.
  • a pipeline connection in the form of a corrugated pipe is known from US Pat. No. 2,014,355, which is intended to prevent or reduce the transmission of vibrations.
  • the outside of the corrugated pipe is surrounded by a sheath which does not touch the corrugated pipe and which is rigidly connected at one end to the one pipe section.
  • the sleeve is sealed off from the other tube section by a flexible seal.
  • the casing shields noises emanating from the corrugated tube.
  • the fuel injection system according to the invention with the characterizing features of the main claim has the advantage that the inlet and the flexible section have a low overall height and still enable angle compensation and lateral compensation in a large area.
  • the compensation takes place by elastic deformation of the flexible section itself, and there is no risk of a seal becoming leaky.
  • a third sleeve section with the largest diameter axially between a first and a second is advantageous Arranged sleeve section and the first sleeve section and second sleeve section have the same diameter.
  • an angular compensation and lateral compensation can be achieved with a small overall length.
  • the double bends in the axial cross section are advantageously S-shaped.
  • the deformation of the flexible section is evenly distributed over the S-shaped area. Length compensation over a wide range is advantageously made possible.
  • the sleeve sections and the bends can consist of sheet metal.
  • Fig. 1 shows a section through an embodiment of a fuel injection system according to the invention in the sectional plane of a fuel injection valve and an inlet of a fuel distributor line.
  • Fig. 1 shows an axial section through an embodiment of an inventive
  • Fuel injection system 1 in the plane of a fuel injection valve 2 and an inlet 3 of a fuel distribution line, not shown here.
  • the fuel injection valve 2 is inserted into a bore in a cylinder head 5 of an internal combustion engine and is shown in section in the area of an inlet section 6.
  • the fuel injector 2 is sealed by a sealing ring 8 made of, for example, elastomer and arranged in a groove 7.
  • a first sleeve section 9 is connected to the inlet 3 via a weld seam 10.
  • a second sleeve section 11 is connected to a guide section 12a, which is inserted into the inlet section 6 of the fuel injection valve 2 and which has a groove 12b with a sealing ring 12c for sealing off the inlet section 6.
  • the first sleeve section 9 and the second sleeve section 11 are enclosed radially on the outside by a third sleeve section 13.
  • the first, second and third sleeve sections 9, 11, 13 are connected by means of double bends 14, which are S-shaped in the illustrated axial cross section.
  • First sleeve section 9, second sleeve section 11, third sleeve section 13 and S-shaped bends 14 form a flexible section 16.
  • the flexible section 16 is made of a metal sheet, for example a spring steel.
  • a connector plug 15 for controlling the fuel injection valve 2 is formed on the inlet section 6.
  • a compensation can advantageously take place in the event of a lateral deviation or a tilting between inlet 3 and inlet section 6. Deviations in the distance between inlet 3 and inlet section 6 can also be compensated for by deforming the flexible section 16, in particular the S-shaped bends 14. Only a small overall height of the flexible section 16 is required, although relatively large tolerances can be compensated for compared to the prior art.

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

A fuel injection system which is used to inject fuel into an internal combustion engine, comprising at least one fuel injection valve (2) and a fuel distribution line, provided with an inlet (3) for each fuel injection valve (2), wherein said inlet can be connected to an inlet section (6) of the fuel injection valve (2) and comprises a flexible section (16). The flexible section (16) consists of three concentric sleeve sections (9, 11, 13) which at least partially overlap with each other in a radial manner and which are connected to each other by double bends (14) in an axial cross-section.

Description

Brennstoffeinspritz nläge Fuel injection system
Stand der TechnikState of the art
Die Erfindung geht aus von einer Brennstoffeinspritzanlage zum Einspritzen von Brennstoff in eine Brennkraftmaschine nach der Gattung des Hauptanspruchs .The invention relates to a fuel injection system for injecting fuel into an internal combustion engine according to the preamble of the main claim.
Aus der DE-OS 28 29 057 ist eine Brennstoffeinspritzanlage zur Brennstoff ersorgung einer gemischverdichteten, fremdgezündeten Brennkraftmaschine in Abhängigkeit von Betriebskenngrößen bekannt. Die Brennstoffeinspritzanlage. umfaßt eine metallene BrennstoffVerteilerleitung, die über mindestens eine Abzweigleitung mit mindestens einem Brennstoffeinspritzventil in Verbindung steht, wobei die Abzweigleitung als Metallrohr ausgebildet und durch einen Schraubanschluß mit dem Brennstoffeinspritzventil verbunden ist. Als Abzweigleitungswerkstoff dient leicht biegbares Metall . Zwischen dem Schraubanschluß an der Abzweigleitung und dem Brennstoffeinspritzventil ist ein metallener dünnwandiger Balg in Form eines Wellrohrbalgs vorgesehen, durch den ein seitlicher Versatz zwischen dem Ansatzpunkt der Abzweigleitung an der Brennstoffverteilerleitung und der Einbaulage des Brennstoffeinspritzventils ausgeglichen wird.From DE-OS 28 29 057 a fuel injection system for supplying fuel to a mixture-compressed, spark-ignited internal combustion engine depending on operating parameters is known. The fuel injection system. comprises a metal fuel distributor line which is connected to at least one fuel injection valve via at least one branch line, the branch line being designed as a metal pipe and being connected to the fuel injection valve by a screw connection. Easily bendable metal is used as the branch line material. Between the screw connection on the branch line and the fuel injection valve, a metallic thin-walled bellows in the form of a corrugated tube bellows is provided, by means of which a lateral offset between the attachment point of the branch line on the fuel distributor line and the installation position of the fuel injection valve is compensated.
Nachteilig an der aus der DE-OS 28 29 057 bekannten Brennstoffeinspritzanlage ist, daß der Wellrohrbalg eine Mindestanzahl an Wellungen benötigt, um zugleich Toleranzen der Baulänge, wie auch Verkippungen der Achsen des Brennstoffeinspritzventils und des Ansatzpunkts der BrennstoffVerteilerleitung ausgleichen zu können. Der Winkelausgleich (Angularausgleich) und der seitliche Ausgleich (Lateralausgleich) erfordern eine Mindestlänge des Wellrohrbalgs .A disadvantage of the fuel injection system known from DE-OS 28 29 057 is that the corrugated tube bellows Minimum number of corrugations required in order to be able to compensate for tolerances of the overall length, as well as tilting of the axes of the fuel injector and the starting point of the fuel distribution line. The angle compensation (angular compensation) and the lateral compensation (lateral compensation) require a minimum length of the corrugated pipe bellows.
Aus der US 2,014,355 ist eine Rohrleitungsverbindung in Form eines Wellrohres bekannt, die die Übertragung von Vibrationen verhindern bzw. vermindern soll. Das Wellrohr ist außen von einer Hülle umgeben, die das Wellrohr nicht berührt und die an einem Ende mit dem einen Rohrabschnitt starr verbunden ist . An ihrem anderen Ende ist die Hülle gegenüber dem anderen Rohrabschnitt durch eine flexible Dichtung abgedichtet. Durch die Hülle werden Geräusche abgeschirmt, die von dem Wellrohr ausgehen.A pipeline connection in the form of a corrugated pipe is known from US Pat. No. 2,014,355, which is intended to prevent or reduce the transmission of vibrations. The outside of the corrugated pipe is surrounded by a sheath which does not touch the corrugated pipe and which is rigidly connected at one end to the one pipe section. At its other end, the sleeve is sealed off from the other tube section by a flexible seal. The casing shields noises emanating from the corrugated tube.
Dieser bekannte Stand der Technik weist ebenfalls die schon genannten Nachteile au .This known prior art also has the disadvantages already mentioned.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Brennstoffeinspritzanlage mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß der Zulauf und der flexible Abschnitt eine geringe Bauhöhe aufweisen und dennoch einen Winkelausgleich sowie einen seitlichen Ausgleich in einem großen Bereich ermöglichen. Insbesondere erfolgt der Ausgleich durch elastische Verformung des flexiblen Abschnitts selbst, und es besteht nicht die Gefahr, daß eine Dichtung undicht wird.The fuel injection system according to the invention with the characterizing features of the main claim has the advantage that the inlet and the flexible section have a low overall height and still enable angle compensation and lateral compensation in a large area. In particular, the compensation takes place by elastic deformation of the flexible section itself, and there is no risk of a seal becoming leaky.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im Hauptanspruch angegebenen Brennstoffeinspritzanlage möglich.The measures listed in the subclaims permit advantageous developments and improvements of the fuel injection system specified in the main claim.
Vorteilhaft ist ein dritter Hülsenabschnitt mit dem größten Durchmesser axial zwischen einem ersten und einem zweiten Hülsenabschnitt angeordnet und weisen erster Hülsenabschnitt und zweiter Hülsenabschnitt einen gleichen Durchmesser auf.A third sleeve section with the largest diameter axially between a first and a second is advantageous Arranged sleeve section and the first sleeve section and second sleeve section have the same diameter.
Ohne eine Verengung des Strömungsquerschnitts des Brennstoffzulaufs kann mit geringer Baulänge ein Winkelausgleich und seitlicher Ausgleich erreicht werden.Without narrowing the flow cross-section of the fuel inlet, an angular compensation and lateral compensation can be achieved with a small overall length.
Günstig sind die doppelten Umbiegungen im axialen Querschnitt S-förmig ausgebildet.The double bends in the axial cross section are advantageously S-shaped.
Die Verformung des flexiblen Abschnitts verteilt sich gleichmäßig über den S-förmig gebogenen Bereich. Vorteilhaft wird ein Längenausgleich über einen weiten Bereich ermöglicht .The deformation of the flexible section is evenly distributed over the S-shaped area. Length compensation over a wide range is advantageously made possible.
Die Hülsenabschnitte sowie die Umbiegungen können aus Metallblech bestehen.The sleeve sections and the bends can consist of sheet metal.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung vereinfacht dargestellt und in der nachfolgenden Beschreibung näher erläutert. Es zeigt:An embodiment of the invention is shown in simplified form in the drawing and explained in more detail in the following description. It shows:
Fig. 1 einen Schnitt durch ein Ausführungsbeispiel einer erfindungsgemäßen Brennstoffeinspritzanlage in der Schnittebene eines Brennstoffeinspritzventils und eines Zulaufs einer Brennstoffverteilerleitung.Fig. 1 shows a section through an embodiment of a fuel injection system according to the invention in the sectional plane of a fuel injection valve and an inlet of a fuel distributor line.
Beschreibung des AusführungsbeispielsDescription of the embodiment
Fig. 1 zeigt einen axialen Schnitt durch ein Ausführungsbeispiel einer erfindungsgemäßenFig. 1 shows an axial section through an embodiment of an inventive
Brennstoffeinspritzanlage 1 in der Ebene eines Brennstoffeinspritzventils 2 und eines Zulaufs 3 einer hier nicht dargestellten Brennstoffverteilerleitung. Das Brennstoffeinspritzventil 2 ist in eine Bohrung eines Zylinderkopfes 5 einer Brennkraftmaschine eingesetzt und im Bereich eines Zulaufabschnitts 6 geschnitten dargestellt. Gegenüber der Bohrung 4 ist das Brennstoffeinspritzventil 2 durch einen in einer Nut 7 angeordneten Dichtring 8 aus z.B. Elastomer abgedichtet.Fuel injection system 1 in the plane of a fuel injection valve 2 and an inlet 3 of a fuel distribution line, not shown here. The fuel injection valve 2 is inserted into a bore in a cylinder head 5 of an internal combustion engine and is shown in section in the area of an inlet section 6. Compared to the bore 4, the fuel injector 2 is sealed by a sealing ring 8 made of, for example, elastomer and arranged in a groove 7.
Ein erster Hülsenabschnitt 9 ist über eine Schweißnaht 10 mit dem Zulauf 3 verbunden. Ein zweiter Hülsenabschnitt 11 ist mit einem Führungsabschnitt 12a verbunden, der in den Zulaufabschnitt 6 des Brennstoffeinspritzventils 2 eingesetzt ist und der eine Nut 12b mit einem Dichtring 12c zur Abdichtung gegenüber dem Zulaufabschnitt 6 aufweist. Radial außen werden erster Hülsenabschnitt 9 und zweiter Hülsenabschnitt 11 durch einen dritten Hülsenabschnitt 13 umschlossen. Über doppelte Umbiegungen 14, die im dargestellten axialen Querschnitt S-förmig ausgeformt sind, werden erster, zweiter und dritter Hulsenabschnitt 9,11,13 verbunden.A first sleeve section 9 is connected to the inlet 3 via a weld seam 10. A second sleeve section 11 is connected to a guide section 12a, which is inserted into the inlet section 6 of the fuel injection valve 2 and which has a groove 12b with a sealing ring 12c for sealing off the inlet section 6. The first sleeve section 9 and the second sleeve section 11 are enclosed radially on the outside by a third sleeve section 13. The first, second and third sleeve sections 9, 11, 13 are connected by means of double bends 14, which are S-shaped in the illustrated axial cross section.
Erster Hülsenabschnitt 9, zweiter Hülsenabschnitt 11, dritter Hülsenabschnitt 13 und S-förmige Umbiegungen 14 bilden einen flexiblen Abschnitt 16. Der flexible Abschnitt 16 ist aus einem Metallblech gefertigt, beispielsweise einem Federstahl .First sleeve section 9, second sleeve section 11, third sleeve section 13 and S-shaped bends 14 form a flexible section 16. The flexible section 16 is made of a metal sheet, for example a spring steel.
An dem Zulaufabschnitt 6 ist ein Anschlußstecker 15 zur Ansteuerung des Brennstoffeinspritzventils 2 angeformt .A connector plug 15 for controlling the fuel injection valve 2 is formed on the inlet section 6.
Vorteilhaft kann ein Ausgleich bei einer seitlichen Abweichung oder einer Verkippung zwischen Zulauf 3 und Zulaufabschnitt 6 erfolgen. Auch Abweichungen im Abstand zwischen Zulauf 3 und Zulaufabschnitt 6 können durch Verformung des flexiblen Abschnitts 16, insbesondere der S- förmigen Umbiegungen 14, ausgeglichen werden. Dabei ist nur eine geringe Bauhöhe des flexiblen Abschnitts 16 erforderlich, obwohl gegenüber dem Stand der Technik relativ große Toleranzen ausgeglichen werden können.A compensation can advantageously take place in the event of a lateral deviation or a tilting between inlet 3 and inlet section 6. Deviations in the distance between inlet 3 and inlet section 6 can also be compensated for by deforming the flexible section 16, in particular the S-shaped bends 14. Only a small overall height of the flexible section 16 is required, although relatively large tolerances can be compensated for compared to the prior art.
Durch eine entsprechend steife Auslegung des flexiblen Abschnitts 16 ist es möglich, über diesen eine Niederhaltekraft von der Brennstoffverteilerleitung auf das Brennstoffeinspritzventil 2 auszuüben, die das Brennstoffeinspritzventil 2 in der Bohrung 4 gegen den Verbrennungsdruck niederhält . Dadurch können besondere Niederhaltevorrichtungen entfallen . By means of a correspondingly rigid design of the flexible section 16, it is possible to use this to hold down a force from the fuel distributor line to the Exercise fuel injector 2, which holds the fuel injector 2 in the bore 4 against the combustion pressure. This makes special hold-down devices unnecessary.

Claims

Ansprüche Expectations
1. Brennstoffeinspritzanlage zum Einspritzen von Brennstoff in eine Brennkraftmaschine mit zumindest einem Brennstoffeinspritzventil (2) und einer Brennstoffverteilerleitung, die für jedes Brennstoffeinspritzventil (2) einen mit einem Zulaufabschnitt (6) des Brennstoffeinspritzventils (2) verbindbaren Zulauf (3) mit einem flexiblen Abschnitt (16) aufweist, dadurch gekennzeichnet, daß der flexible Abschnitt (16) aus drei konzentrischen Hülsenabschnitten (9,11,13) besteht, die sich zumindest teilweise radial überdecken und die miteinander durch im axialen Querschnitt doppelte Umbiegungen (14) verbunden sind.1. Fuel injection system for injecting fuel into an internal combustion engine with at least one fuel injection valve (2) and a fuel distributor line, which for each fuel injection valve (2) has an inlet (3) with a flexible section (3) that can be connected to an inlet section (6) of the fuel injection valve (2). 16), characterized in that the flexible section (16) consists of three concentric sleeve sections (9, 11, 13) which at least partially overlap radially and which are connected to one another by double bends (14) in the axial cross section.
2. Brennstoffeinspritzanlage nach Anspruch 1, dadurch gekennzeichnet, daß ein dritter Hülsenabschnitt (13) mit dem größten Durchmesser axial zwischen einem ersten Hülsenabschnitt (9) und einem zweiten Hülsenabschnitt (11) angeordnet ist.2. Fuel injection system according to claim 1, characterized in that a third sleeve section (13) with the largest diameter is arranged axially between a first sleeve section (9) and a second sleeve section (11).
3. Brennstoffeinspritzanlage nach Anspruch 2, dadurch gekennzeichnet, daß erster Hülsenabschnitt (9) und zweiter Hülsenabschnitt (11) einen gleichen Durchmesser aufweisen. 3. Fuel injection system according to claim 2, characterized in that the first sleeve section (9) and the second sleeve section (11) have the same diameter.
4. Brennstoffeinspritzanlage nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die doppelten Umbiegungen (14) im axialen Querschnitt S- förmig ausgebildet sind.4. Fuel injection system according to one of claims 1 to 3, characterized in that the double bends (14) are S-shaped in axial cross section.
5. ■ Brennstoffeinspritzanlage nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Hülsenabschnitte (9,11,13) sowie die Umbiegungen (14) aus Metallblech bestehen.5. ■ Fuel injection system according to one of claims 1 to 4, characterized in that the sleeve sections (9, 11, 13) and the bends (14) consist of sheet metal.
6. Brennstoffeinspritzanlage nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der flexible Abschnitt (16) fest mit dem Zulauf (3) der Brennstoffverteilerleitung verbunden ist.6. Fuel injection system according to one of claims 1 to 5, characterized in that the flexible section (16) is fixedly connected to the inlet (3) of the fuel distributor line.
7. Brennstoffeinspritzanlage nach Anspruch 6, dadurch gekennzeichnet, daß die feste Verbindung zwischen Zulauf (3) und flexiblem Abschnitt (16) durch Schweißen erzielt ist. 7. Fuel injection system according to claim 6, characterized in that the fixed connection between the inlet (3) and flexible section (16) is achieved by welding.
EP02774400A 2001-11-30 2002-09-23 Fuel injection system Withdrawn EP1446573A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10158787 2001-11-30
DE10158787A DE10158787A1 (en) 2001-11-30 2001-11-30 fuel injection system
PCT/DE2002/003600 WO2003048562A1 (en) 2001-11-30 2002-09-23 Fuel injection system

Publications (1)

Publication Number Publication Date
EP1446573A1 true EP1446573A1 (en) 2004-08-18

Family

ID=7707527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02774400A Withdrawn EP1446573A1 (en) 2001-11-30 2002-09-23 Fuel injection system

Country Status (5)

Country Link
US (1) US6843233B2 (en)
EP (1) EP1446573A1 (en)
JP (1) JP2005511955A (en)
DE (1) DE10158787A1 (en)
WO (1) WO2003048562A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4267433B2 (en) * 2003-11-25 2009-05-27 トヨタ自動車株式会社 Combustion gas seal for fuel injection valve
DE102004036626A1 (en) * 2004-07-29 2006-03-23 Robert Bosch Gmbh fuel injection system
US7107969B2 (en) * 2004-09-28 2006-09-19 Ford Global Technologies, Llc Twist-lock fuel injector assembly
DE102005006641A1 (en) * 2005-02-14 2006-08-24 Siemens Ag Injection valve for injecting fuel and cylinder head
JP4546404B2 (en) * 2006-01-25 2010-09-15 本田技研工業株式会社 Engine fuel injection valve mounting structure
EP1862666A1 (en) * 2006-06-01 2007-12-05 Siemens Aktiengesellschaft Coupling body for a coupling arrangement and coupling arrangement
US20080098989A1 (en) * 2006-10-31 2008-05-01 Caterpillar Inc. Fuel-injection system
DE102007035714A1 (en) 2007-07-30 2009-02-05 Robert Bosch Gmbh Fuel injection system with compensation element
US11326448B2 (en) 2019-12-04 2022-05-10 Saudi Arabian Oil Company Pressure testing systems for subterranean rock formations
US11542815B2 (en) 2020-11-30 2023-01-03 Saudi Arabian Oil Company Determining effect of oxidative hydraulic fracturing
US11649702B2 (en) 2020-12-03 2023-05-16 Saudi Arabian Oil Company Wellbore shaped perforation assembly
US12071814B2 (en) 2020-12-07 2024-08-27 Saudi Arabian Oil Company Wellbore notching assembly
US11619127B1 (en) 2021-12-06 2023-04-04 Saudi Arabian Oil Company Wellhead acoustic insulation to monitor hydraulic fracturing

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR658066A (en) * 1928-07-25 1929-05-30 Flexible metal fitting, for liquid or gas lines
US2014355A (en) 1933-02-27 1935-09-10 United States Gypsum Co Vibration isolating pipe connection
US2232656A (en) * 1940-01-20 1941-02-18 E B Badger & Sons Company Method of welding stainless steel and product thereof
US2407745A (en) * 1944-08-09 1946-09-17 Jacobson Franz Rotary joint
US2876801A (en) * 1955-03-10 1959-03-10 Breeze Corp Metal convolution tubing
US3315704A (en) * 1963-06-17 1967-04-25 Gen Connector Corp Flexible bellows
FR1444034A (en) 1965-05-07 1966-07-01 Calorstat Coupling device for tubular elements
FR1527170A (en) * 1967-04-20 1968-05-31 Moulinex Sa Flexible tube
DE2235012A1 (en) * 1972-07-17 1974-01-31 Emil Siegwart FLEXIBLE CORRUGATED TUBE
DE2829057A1 (en) * 1978-07-01 1980-01-10 Bosch Gmbh Robert FUEL INJECTION SYSTEM
DE2948065C2 (en) * 1979-11-29 1983-11-17 IWK Regler und Kompensatoren GmbH, 7513 Stutensee Bellows
US4283078A (en) * 1980-05-01 1981-08-11 Ross Victor H Flexible joint protector
US4540203A (en) * 1982-09-27 1985-09-10 The United States Of America As Represented By The United States Department Of Energy Rolling cuff flexible bellows
CN85100678B (en) * 1985-04-01 1985-09-10 铁道部科学研究院机车车辆研究所 Corrugated pipe having flex in crest
AT4632U1 (en) * 2000-05-25 2001-09-25 Avl List Gmbh INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03048562A1 *

Also Published As

Publication number Publication date
JP2005511955A (en) 2005-04-28
DE10158787A1 (en) 2003-06-12
US6843233B2 (en) 2005-01-18
US20040112339A1 (en) 2004-06-17
WO2003048562A1 (en) 2003-06-12

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