EP1118766A3 - Fuel injection system for internal combustion engine - Google Patents

Fuel injection system for internal combustion engine Download PDF

Info

Publication number
EP1118766A3
EP1118766A3 EP00127084A EP00127084A EP1118766A3 EP 1118766 A3 EP1118766 A3 EP 1118766A3 EP 00127084 A EP00127084 A EP 00127084A EP 00127084 A EP00127084 A EP 00127084A EP 1118766 A3 EP1118766 A3 EP 1118766A3
Authority
EP
European Patent Office
Prior art keywords
injection system
fuel injection
combustion engine
internal combustion
pressure
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
EP00127084A
Other languages
German (de)
French (fr)
Other versions
EP1118766A2 (en
EP1118766B1 (en
Inventor
Helmut Hummel
Hinrich Dr. Krüger
Martin Werner
Michael Wirkowski
Eckbert Zander
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP1118766A2 publication Critical patent/EP1118766A2/en
Publication of EP1118766A3 publication Critical patent/EP1118766A3/en
Application granted granted Critical
Publication of EP1118766B1 publication Critical patent/EP1118766B1/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
    • 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
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • 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
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • F02M55/025—Common rails

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

Die Erfindung betrifft ein Einspritzsystem für Kraftstoffeinspritzanlagen mit einem mit einer Hochdruckanschlußstelle (2) verbundenen Injektor, wobei die Hochdruckanschlußstelle (2) und der Injektor über mindestens eine mit einer Überwurfmutter (4) versehene Schraubverbindung (3) miteinander verbunden sind. Um ein Einspritzsystem bereitzustellen, bei dem die Schraubverbindung (3) auch unter Druck gefahrlos geöffnet werden kann, wird erfindungsgemäß vorgeschlagen, daß im Bereich der Schraubverbindung (3) mindestens eine Druckbegrenzungseinrichtung ausgebildet ist.

Figure 00000001
The invention relates to an injection system for fuel injection systems with an injector connected to a high-pressure connection point (2), the high-pressure connection point (2) and the injector being connected to one another via at least one screw connection (3) provided with a union nut (4). In order to provide an injection system in which the screw connection (3) can be opened safely even under pressure, it is proposed according to the invention that at least one pressure limiting device is formed in the area of the screw connection (3).
Figure 00000001
EP20000127084 2000-01-20 2000-12-11 Fuel injection system for internal combustion engine Expired - Lifetime EP1118766B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000102365 DE10002365B4 (en) 2000-01-20 2000-01-20 Injection system for fuel injection systems
DE10002365 2000-01-20

Publications (3)

Publication Number Publication Date
EP1118766A2 EP1118766A2 (en) 2001-07-25
EP1118766A3 true EP1118766A3 (en) 2003-08-06
EP1118766B1 EP1118766B1 (en) 2006-03-22

Family

ID=7628174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000127084 Expired - Lifetime EP1118766B1 (en) 2000-01-20 2000-12-11 Fuel injection system for internal combustion engine

Country Status (2)

Country Link
EP (1) EP1118766B1 (en)
DE (2) DE10002365B4 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10219259A1 (en) * 2002-04-30 2003-11-20 Bosch Gmbh Robert Connection device with a clamping nut with right and left hand thread
DE10234723B4 (en) * 2002-07-30 2005-04-07 Siemens Ag Pressure-tight connection arrangement for parts of a fuel injection system, in particular high-pressure-tight connection arrangement for parts of a fuel injector
FR2878604B1 (en) * 2004-11-30 2007-02-16 Renault Sas ARRANGEMENT FOR CONNECTING A PIPE TO A TIP AND METHOD OF MEASURING THE TIGHTENING EFFORT IN SUCH AN AGENCEMEN
DE102005003519A1 (en) * 2005-01-25 2006-08-03 Benteler Automobiltechnik Gmbh Connecting arrangement for pipes
EP1783357B1 (en) * 2005-11-02 2008-06-04 Delphi Technologies, Inc. Connecting structure for a fuel injector high pressure fuel supply
GB2614244A (en) * 2021-12-22 2023-07-05 Delphi Tech Ip Ltd Fuel-rail assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3402703A (en) * 1966-07-08 1968-09-24 Int Harvester Co Fuel connection to cylinder head
DE1947175A1 (en) * 1968-09-18 1970-04-02 Sno Trik Co Sealing and clamping device for a line, in particular a high pressure line
GB2107809A (en) * 1981-10-16 1983-05-05 Rolls Royce Fuel pipe seal
DE19607521C1 (en) * 1996-02-28 1997-04-10 Juergen Dipl Ing Guido High-pressure fuel pipe, for diesel engine with common-rail system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK114737B (en) * 1967-10-03 1969-07-28 Burmeister & Wains Mot Mask Pipe assembly, in particular for high pressure pipes.
DE3907958A1 (en) * 1989-03-11 1990-09-13 Bosch Gmbh Robert FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES
DE4407306C1 (en) * 1994-03-04 1995-09-07 Guido Juergen Dipl Ing Pressure pipe connection for fuel injection system
DE19539883B4 (en) * 1995-05-26 2011-06-01 Robert Bosch Gmbh Fuel supply system and method for operating an internal combustion engine
DE19531743C1 (en) * 1995-08-29 1996-12-05 Guido Jurgen Pressure tester for e.g. fuel injection pipe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3402703A (en) * 1966-07-08 1968-09-24 Int Harvester Co Fuel connection to cylinder head
DE1947175A1 (en) * 1968-09-18 1970-04-02 Sno Trik Co Sealing and clamping device for a line, in particular a high pressure line
GB2107809A (en) * 1981-10-16 1983-05-05 Rolls Royce Fuel pipe seal
DE19607521C1 (en) * 1996-02-28 1997-04-10 Juergen Dipl Ing Guido High-pressure fuel pipe, for diesel engine with common-rail system

Also Published As

Publication number Publication date
DE50012438D1 (en) 2006-05-11
EP1118766A2 (en) 2001-07-25
DE10002365B4 (en) 2005-12-01
EP1118766B1 (en) 2006-03-22
DE10002365A1 (en) 2001-08-02

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