EP0569727B1 - Kraftstoffzuleitungseinrichtung für eine Einspritzdüse - Google Patents

Kraftstoffzuleitungseinrichtung für eine Einspritzdüse Download PDF

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Publication number
EP0569727B1
EP0569727B1 EP93106120A EP93106120A EP0569727B1 EP 0569727 B1 EP0569727 B1 EP 0569727B1 EP 93106120 A EP93106120 A EP 93106120A EP 93106120 A EP93106120 A EP 93106120A EP 0569727 B1 EP0569727 B1 EP 0569727B1
Authority
EP
European Patent Office
Prior art keywords
fuel
passage
inflow
cylinder head
supply line
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
Application number
EP93106120A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0569727A1 (de
Inventor
Karl Dipl.-Ing. Hofmann (Fh)
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 EP0569727A1 publication Critical patent/EP0569727A1/de
Application granted granted Critical
Publication of EP0569727B1 publication Critical patent/EP0569727B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/165—Filtering elements specially adapted in fuel inlets to injector
    • 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
    • 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

Definitions

  • the invention is based on a fuel supply device for an injection nozzle used in a cylinder head of an internal combustion engine according to the preamble of claim 1.
  • a fuel supply device of this type the pipe socket and also the connecting piece of the inlet pipe are completely accommodated in the passage of the cylinder head.
  • This arrangement probably compensates for an offset of the nozzle holder of the injection nozzle in the cylinder head, but it can only be installed together with the inlet pipe brought up by the injection pump.
  • Such an arrangement is known from DE-A-3 128 523.
  • a particularly easy-to-assemble fuel supply device is obtained if it is designed in accordance with the characterizing part of claim 1, so that the injection nozzle and the pipe socket can be installed simultaneously and, independently of this, the pressure or supply pipe at a later point in time, preferably when connecting the injection pump , can be connected in a simple and clear manner.
  • a sealing ring is arranged in the collar of the pipe socket, which is preferably located in the pivot point of the pipe socket, a completely tight arrangement is given. Further it is advantageous to arrange a rod filter in the pipe socket according to claim 4.
  • FIG. 1 An embodiment of the invention is shown in the drawing, which shows part of a cylinder head of an internal combustion engine and a fuel supply device for an injection nozzle in section, and is explained in more detail below.
  • an injection nozzle 12 is inserted in a bore 11 leading to the combustion chamber, the nozzle holder 13 of which is held stationary by a claw 14.
  • the nozzle holder 13 has a laterally open inlet channel 15, in which a bore with a conical seat surface 16 is made open to the periphery of the nozzle holder 13.
  • a passage is arranged in the cylinder head 10 in the form of a stepped bore 17 which passes through a pipe socket 20.
  • the pipe socket 20 has an axial bore 21 with an extension 22 in the inlet end section 23, in which a rod filter 24 known per se is inserted. Approximately in the middle of its longitudinal extent, the pipe socket 20 has a collar 25 with a spherical shoulder 26, on which a union screw 28 screwed into the extension 18 of the bore 17 engages the pipe socket 20 against the nozzle holder 13. In order to ensure a tight connection even in the event of an axial offset of the nozzle holder 13, the pipe socket 20 has a spherical cone 29 on its outlet-side end section, which is clamped against the conical seat surface 16 of the nozzle holder 13.
  • the inlet-side end section 23 of the pipe socket 20 protrudes from the bore 17 in the cylinder head 10 and carries an external thread 31.
  • a union screw 32 is screwed onto this, which, via a washer 33, a conical connecting piece 34 on an inlet pipe 35 against a conical seat surface 36 at the inlet the bore 21 or extension 22 presses.
  • An O-ring 40 inserted in a circumferential groove 41 of the collar 20, the outer side of which rests against the wall of the bore 17, seals the annular gap surrounding the pipe socket 20 to the outside.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP93106120A 1992-05-09 1993-04-15 Kraftstoffzuleitungseinrichtung für eine Einspritzdüse Expired - Lifetime EP0569727B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9206268U 1992-05-09
DE9206268U DE9206268U1 (de) 1992-05-09 1992-05-09 Kraftstoffzuleitungseinrichtung für eine Einspritzdüse

Publications (2)

Publication Number Publication Date
EP0569727A1 EP0569727A1 (de) 1993-11-18
EP0569727B1 true EP0569727B1 (de) 1995-12-13

Family

ID=6879319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93106120A Expired - Lifetime EP0569727B1 (de) 1992-05-09 1993-04-15 Kraftstoffzuleitungseinrichtung für eine Einspritzdüse

Country Status (4)

Country Link
EP (1) EP0569727B1 (ja)
JP (1) JP3616650B2 (ja)
BR (1) BR9301773A (ja)
DE (2) DE9206268U1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1945119B (zh) * 2006-11-16 2010-06-23 贵阳铝镁设计研究院 阴极焙烧炉燃气烧嘴

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4239173C1 (en) * 1992-11-21 1993-09-02 Mercedes-Benz Aktiengesellschaft, 70327 Stuttgart, De Cylinder-head for fuel-injection engine - has pressure pipe passing through clamping screw and with union at protruding end for injection pipe
US5775303A (en) * 1995-06-30 1998-07-07 Cummins Engine Company, Inc. High Pressure Fuel Line Connection
DE19524520A1 (de) * 1995-07-05 1997-01-09 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
DE19526693A1 (de) * 1995-07-21 1997-01-23 Man Nutzfahrzeuge Ag Einspritzventil für luftverdichtende Brennkraftmaschinen
DE19543506C2 (de) * 1995-11-22 1998-04-09 Man Nutzfahrzeuge Ag Anschluß einer Einspritzleitung an ein Einspritzventil
DE19608574A1 (de) * 1996-03-06 1997-09-11 Bosch Gmbh Robert Kraftstoffzuleitungseinrichtung
DE19727543A1 (de) 1997-06-28 1999-01-07 Bosch Gmbh Robert Kraftstoffzuleitungseinrichtung
DE19753518A1 (de) 1997-12-03 1999-06-10 Bosch Gmbh Robert Kraftstoffzuleitungseinrichtung
DE19807711A1 (de) * 1998-02-24 1999-09-09 Man Nutzfahrzeuge Ag Vorrichtung zur Demontage von Druckrohren an Eispritzeinheiten von Brennkraftmaschinen
DE19814501A1 (de) * 1998-04-01 1999-10-07 Bosch Gmbh Robert Kraftstoffeinspritzventil für Brennkraftmaschinen
GB9816264D0 (en) 1998-07-24 1998-09-23 Lucas Ind Plc Connector
DE19850390A1 (de) * 1998-11-02 2000-05-04 Bosch Gmbh Robert Haltekörper für ein Kraftstoffeinspritzventil für Brennkraftmaschinen
GB9824735D0 (en) * 1998-11-12 1999-01-06 Lucas Ind Plc Injector and injector assembly
DE10111839A1 (de) * 2001-03-13 2002-09-19 Bosch Gmbh Robert Kraftstoffhochdruckanschluss
DE10346244A1 (de) * 2003-10-06 2005-04-28 Bosch Gmbh Robert Einspritzdüse
EP1985841A1 (en) * 2007-04-27 2008-10-29 Continental Automotive GmbH Fluid inlet arrangement for an injection valve and injection valve
ATE527444T1 (de) 2007-11-13 2011-10-15 Delphi Tech Holding Sarl Brennstofflanze
CA2635410C (en) 2008-06-19 2010-08-17 Westport Power Inc. Dual fuel connector
DE102009029116A1 (de) 2009-09-02 2011-03-03 Robert Bosch Gmbh Kraftstoffeinspritzvorrichtung
AT509177B1 (de) * 2009-11-23 2013-09-15 Bosch Gmbh Robert Druckrohrstutzen für common-rail-einspritzsystem
EP2354529B1 (en) * 2010-01-21 2012-09-19 Delphi Technologies Holding S.à.r.l. Fuel Pipe Assembly and Clamping Means
DE102010043366A1 (de) * 2010-11-04 2012-05-10 Robert Bosch Gmbh Vorrichtung zur mediendichten Verbindung von zwei Hochdruckbauteilen
AT512162B1 (de) * 2012-05-08 2013-06-15 Bosch Gmbh Robert Verschlussbolzen mit Durchflussbegrenzer
DE202012104347U1 (de) * 2012-11-12 2012-11-28 Ti Automotive (Heidelberg) Gmbh Schraubverbindungsvorrichtung für Rohrleitungen, insbesondere für Kraftfahrzeugrohrleitungen
JP6776324B2 (ja) * 2015-07-08 2020-10-28 インテグリス・インコーポレーテッド 高圧フィルター

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2533195A (en) * 1946-09-23 1950-12-05 Baldwin Locomotive Works Fuel oil leakage detector for diesel engines
GB925937A (en) * 1959-06-05 1963-05-15 Tatra Np Improvements in and relating to fuel injection arrangements for compression-ignitionengines
US3845748A (en) * 1972-09-29 1974-11-05 Mack Trucks Fuel injection nozzle holder installation
DE3128523A1 (de) * 1981-07-18 1983-02-03 Motoren-Werke Mannheim AG vorm. Benz Abt. stationärer Motorenbau, 6800 Mannheim Zylinderkopf fuer einen verbrennungsmotor
US4485790A (en) * 1982-04-19 1984-12-04 Yanmar Diesel Engine Company Limited Holding construction of a fuel injection valve in an internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1945119B (zh) * 2006-11-16 2010-06-23 贵阳铝镁设计研究院 阴极焙烧炉燃气烧嘴

Also Published As

Publication number Publication date
DE59301140D1 (de) 1996-01-25
JP3616650B2 (ja) 2005-02-02
BR9301773A (pt) 1993-11-16
JPH0633847A (ja) 1994-02-08
DE9206268U1 (de) 1993-09-09
EP0569727A1 (de) 1993-11-18

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