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EP1245826A3 - Sealing for a high-pressure fuel system of an internal combustion engine - Google Patents

Sealing for a high-pressure fuel system of an internal combustion engine Download PDF

Info

Publication number
EP1245826A3
EP1245826A3 EP02004834A EP02004834A EP1245826A3 EP 1245826 A3 EP1245826 A3 EP 1245826A3 EP 02004834 A EP02004834 A EP 02004834A EP 02004834 A EP02004834 A EP 02004834A EP 1245826 A3 EP1245826 A3 EP 1245826A3
Authority
EP
European Patent Office
Prior art keywords
pressure
internal combustion
fuel system
sealing
combustion engine
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Withdrawn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
EP02004834A
Other languages
German (de)
French (fr)
Other versions
EP1245826A2 (en
Inventor
Michael Kurz
Kurt Frank
Juergen Hanneke
Marcus Haefele
Friedrich Boecking
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 EP1245826A2 publication Critical patent/EP1245826A2/en
Publication of EP1245826A3 publication Critical patent/EP1245826A3/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • 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
    • F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for

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

Kraftstoffhochdrucksystem für Brennkraftmaschinen mit einem Gehäuse, das zwei Hochdruckkörper (1; 10) umfaßt. Die Hochdruckkörper (1; 10) liegen zumindest mittelbar mit Anlageflächen (101; 110) aneinander an und werden durch eine Spannvorrichtung gegeneinander gepreßt. In den Hochdruckkörpern (1; 10) ist ein Zulaufkanal (20) ausgebildet, der Kraftstoff unter hohem Druck führt und der durch die Anlageflächen (101; 110) der beiden Hochdruckkörper (1; 10) hindurchtritt. Zwischen den beiden Hochdruckkörpern (1; 10) ist eine Dichtfolie (35) angeordnet, die den Durchtritt des Hochdruckkanals (20) umgibt und so für eine gute Abdichtung sorgt (Figur 2).

Figure 00000001
High-pressure fuel system for internal combustion engines with a housing which comprises two high-pressure bodies (1; 10). The high-pressure bodies (1; 10) lie against one another at least indirectly with contact surfaces (101; 110) and are pressed against one another by a tensioning device. An inlet channel (20) is formed in the high-pressure bodies (1; 10), which carries fuel under high pressure and which passes through the contact surfaces (101; 110) of the two high-pressure bodies (1; 10). A sealing film (35) is arranged between the two high-pressure bodies (1; 10) and surrounds the passage of the high-pressure channel (20) and thus ensures a good seal (FIG. 2).
Figure 00000001
EP02004834A 2001-03-28 2002-03-02 Sealing for a high-pressure fuel system of an internal combustion engine Withdrawn EP1245826A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10115214A DE10115214A1 (en) 2001-03-28 2001-03-28 High-pressure fuel system for internal combustion engines
DE10115214 2001-03-28

Publications (2)

Publication Number Publication Date
EP1245826A2 EP1245826A2 (en) 2002-10-02
EP1245826A3 true EP1245826A3 (en) 2004-02-04

Family

ID=7679338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02004834A Withdrawn EP1245826A3 (en) 2001-03-28 2002-03-02 Sealing for a high-pressure fuel system of an internal combustion engine

Country Status (4)

Country Link
US (1) US6575142B2 (en)
EP (1) EP1245826A3 (en)
JP (1) JP2002357171A (en)
DE (1) DE10115214A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005054522A1 (en) * 2003-12-05 2005-06-16 Siemens Aktiengesellschaft Method for the selective hardening of sealing surfaces
DE102004024389A1 (en) * 2004-05-17 2005-12-15 Siemens Ag Injection valve for internal combustion engines
DE102005015425A1 (en) * 2005-04-04 2006-10-05 Siemens Ag Fuel injection valve for internal combustion (IC) engine for motor vehicle, has coating pinched between end faces of lower and upper valve bodies and sealingly surrounding aligned recesses formed on both end faces
DE102005025953A1 (en) * 2005-06-06 2006-12-07 Siemens Ag Compensator e.g. for injection valve, has pot shaped body with pot base and recess with piston provided at axially extending guide of piston having clearance fit of recess
EP1741923B1 (en) 2005-07-08 2009-09-02 C.R.F. Societa Consortile per Azioni A connection system of a tubular rail for high-pressure fuel
DE102005060667A1 (en) * 2005-12-19 2007-06-28 Robert Bosch Gmbh High pressure connection and method for producing a high pressure connection
JP4420102B2 (en) * 2007-10-30 2010-02-24 株式会社デンソー Injector
DE102008007225A1 (en) 2008-02-01 2009-08-06 Robert Bosch Gmbh Intermediate plate for a fuel injector and fuel injector
DE102011008468A1 (en) 2011-01-13 2012-07-19 Continental Automotive Gmbh Fuel injector and method of manufacturing a fuel injector
DE102011086905A1 (en) 2011-11-23 2013-05-23 Robert Bosch Gmbh High pressure component system e.g. fuel injector, for diesel fuel self-ignition engine, has contact surfaces provided with groove structure with small roughness depth, and sealing material arranged between contact surfaces
DE102014201854A1 (en) 2014-02-03 2015-08-06 Robert Bosch Gmbh Sealing disk for a fuel injector, as well as fuel injector with such a sealing washer
DE102015202877A1 (en) 2015-02-18 2016-08-18 Robert Bosch Gmbh High-pressure fuel system for internal combustion engines
DE102015209956A1 (en) * 2015-05-29 2016-12-01 Robert Bosch Gmbh Fuel injection system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5785024A (en) * 1996-08-22 1998-07-28 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Cylinder head device for internal combustion engine
DE19729788A1 (en) * 1997-07-11 1999-01-14 Bosch Gmbh Robert Radial piston pump for high-pressure fuel supply
EP0957262A2 (en) * 1998-05-13 1999-11-17 LUCAS INDUSTRIES public limited company Fuel injector
DE19827628A1 (en) * 1998-06-20 1999-12-23 Daimler Chrysler Ag Fuel injection valve for internal combustion engines
DE10103250A1 (en) * 2000-01-26 2001-08-09 Usui Kokusai Sangyo Kk Common line for diesel engine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2458728A1 (en) * 1974-12-12 1976-06-24 Bosch Gmbh Robert ELECTROMAGNETICALLY ACTIVATED INJECTION VALVE
US5247918A (en) * 1992-09-17 1993-09-28 Siemens Automotive L.P. Sealing a direct injection fuel injector to a combustion chamber
US6062497A (en) * 1996-01-19 2000-05-16 Caterpillar Inc. Fuel injector nozzle assembly with improved needle check valve stop mechanism
US6116522A (en) * 1996-04-16 2000-09-12 Motorenfabrik Hatz Gmbh & Co. Kg Fuel injection device
DE19752496A1 (en) * 1997-11-27 1999-06-02 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
DE59908891D1 (en) * 1998-05-07 2004-04-22 Siemens Ag FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5785024A (en) * 1996-08-22 1998-07-28 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Cylinder head device for internal combustion engine
DE19729788A1 (en) * 1997-07-11 1999-01-14 Bosch Gmbh Robert Radial piston pump for high-pressure fuel supply
EP0957262A2 (en) * 1998-05-13 1999-11-17 LUCAS INDUSTRIES public limited company Fuel injector
DE19827628A1 (en) * 1998-06-20 1999-12-23 Daimler Chrysler Ag Fuel injection valve for internal combustion engines
DE10103250A1 (en) * 2000-01-26 2001-08-09 Usui Kokusai Sangyo Kk Common line for diesel engine

Also Published As

Publication number Publication date
EP1245826A2 (en) 2002-10-02
JP2002357171A (en) 2002-12-13
US6575142B2 (en) 2003-06-10
DE10115214A1 (en) 2002-10-10
US20020139869A1 (en) 2002-10-03

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