EP1064461B1 - Dispositif pour le demontage d'une soupape d'injection de carburant - Google Patents

Dispositif pour le demontage d'une soupape d'injection de carburant Download PDF

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Publication number
EP1064461B1
EP1064461B1 EP99952329A EP99952329A EP1064461B1 EP 1064461 B1 EP1064461 B1 EP 1064461B1 EP 99952329 A EP99952329 A EP 99952329A EP 99952329 A EP99952329 A EP 99952329A EP 1064461 B1 EP1064461 B1 EP 1064461B1
Authority
EP
European Patent Office
Prior art keywords
injection valve
fuel injection
removal device
section
fuel injector
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
EP99952329A
Other languages
German (de)
English (en)
Other versions
EP1064461A1 (fr
Inventor
Ferdinand Reiter
Heinz-Martin Krause
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 EP1064461A1 publication Critical patent/EP1064461A1/fr
Application granted granted Critical
Publication of EP1064461B1 publication Critical patent/EP1064461B1/fr
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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0035—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for motor-vehicles
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53552—Valve applying or removing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53909—Means comprising hand manipulatable tool
    • Y10T29/53943—Hand gripper for direct push or pull

Definitions

  • the invention relates to a disassembly device Disassembly of a fuel injector, in particular a high pressure direct injection valve, from a mounting hole of a cylinder head of an internal combustion engine.
  • a fuel injector in particular a high pressure direct injection valve
  • the high pressure direct injection valve becomes fuel immediately injected into the combustion chamber of the internal combustion engine.
  • the invention relates to a disassembly device the genus of the main claim. It is already out of the DE 197 05 990 A1 known for dismantling a direct injecting fuel injector a disassembly device with a fuel injector at least partially comprehensive sheath body to use.
  • the coat body is in the mounting hole of the cylinder head together with the fuel injector already at To introduce assembly.
  • a first collar section is provided, which with a first collar portion receiving portion of the Fuel injector is non-positively connectable.
  • On a second end of the Sheath body is a second collar section, the provides a target for a tool.
  • Disassembly device is disadvantageous that the connection of the Disassembly device with the fuel injector still is not optimized and the force transmission by the at the Dismantling tool still attacking can be improved.
  • Another disadvantage is that the Disassembly device before assembly on the fuel injector must be attached and a retrofitting, for example, only in the maintenance or Exchange case is not possible.
  • From US 4,561,159 is a disassembly device for a Diesel injector known. One opposite the spray opening End area of the fuel injector is into a slot in the dismantling device on the side insertable. The disassembly device is not in the Receiving hole of the cylinder head inserted and remains not in the mounting hole when assembled. From the disassembly device resulting from US 4,561,159 rather a tool extension, before disassembly of the fuel injector to the fuel injector is attached. However, here is the connection of the Disassembly device with the fuel injector relatively cumbersome.
  • the disassembly device according to the invention with the characteristic Features of claim 1 has the advantage that the Disassembly device with relatively little effort on the Fuel injector is mountable, reducing handling is much easier.
  • Claim 1 With the solution after Claim 1 is the fuel injector due to crescent-shaped tapered design of the bearing surface little effort laterally into the attack section insertable.
  • the disassembly device can be advantageous in terms of production technology to be composed of several partial bodies.
  • the partial body advantageously on the tubular Section have fasteners that are in recesses of the neighboring part of the body.
  • the disassembly device can, for example, by rolling be made from sheet steel. However, it is also possible the disassembly device from a with glass fibers reinforced plastic, for example with a plastic injection molding process to manufacture.
  • FIG. 1A, 1B and 1C show a first embodiment the disassembly device according to the invention.
  • the invention Disassembly device serves as an auxiliary tool in the Disassembly of a fuel injector from a Location bore of a cylinder head of an internal combustion engine during maintenance work or when replacing the Fuel injector.
  • the dismantling device generally designated by the reference number 1 has a jacket body 2, which is in an attack section 3 and a tubular section 4 divided.
  • the attack section 3 is shown in the Embodiment in the form of a half-tube, as better from Fig. 1C, which is a top view of the one shown in Fig. 1A shows the dismantling device 1 is.
  • One of the tubular section 4 completely enclosed, the tubular section 4 completely penetrating axial recess 5 opens in the area of the attack section 3 to the front in FIG. 1A and in FIG. 1B, which is a side view of that shown in FIG. 1A Embodiment shows, to the side.
  • This is the inlet section of a fuel injector in the disassembly device 1 can be used so that one on the the tubular section 4 opposite end 6 of Attack section 3 integrally formed, projecting radially inwards Contact surface 7 at a suitable point on the fuel injector can attack.
  • the contact surface 7 is crescent-shaped, d. H. the bearing surface 7 tapers in radial width in the direction of the free ends 8 and 9 of the Attack section 3.
  • the bearing surface 7 is achieved that the dismantling device 1 on the fuel injector mounted on the cylinder head without difficulty and without major Force can be mounted. It results from the narrow foothills of the support surface 7 to the free Ends 8 and 9 of the attack section 3 towards an improved Management of the dismantling device 1 and a smaller one Force when attaching to the fuel injector.
  • FIGS. 1A and 1B are on the tubular Section 4 in the embodiment two holes 10 and 11 are provided, which are perpendicular to the longitudinal axis 12 of the disassembly device 1.
  • the holes 10 and 11 serve as engagement elements for a on the disassembly device 1 attacking tool.
  • the tool can For example, be designed like pliers, with a first tong wing in the first bore 10 and a second Plier wing is inserted into the second bore 11, so that the disassembly device 1 by the pliers-like tool can be easily taken. It is also conceivable a crossbar through the two holes 10 and 11th pass through, on which a suitable tool in the Disassembly attacks or which is taken by hand.
  • the holes 10 and 11 can of course also other attack elements are provided for suitable tools be, for example, one that projects inwards or outwards Collar at the end opposite the engagement element 3 of the tubular section 4.
  • FIG. 2 shows the sectioned cylinder head 20 of an internal combustion engine.
  • a fuel injection valve is in a receiving bore 21 22 used, that for direct injection of fuel in a combustion chamber 30 the Internal combustion engine is used.
  • 1A, 1B and 1C described elements of the disassembly device 1 are provided with the same reference numerals, so that there is no need for a repetitive description.
  • the fuel injection valve 22 has a spray section 23, an intermediate section 24 and an inlet section 25.
  • the inlet section 25 of the fuel injector 22 has a fuel inlet port 26 which is not one fuel distribution line shown is connectable and is sealed by means of a sealing ring 27.
  • an electrical connection cable for electrical actuation of the fuel injector 22 is an electrical connection cable, not shown, that can be connected to a connector 28.
  • the Plug connection 28 can, for example, on the fuel injector 22 be molded.
  • Between the Connector 28 and the intermediate portion 24 is one annular circumferential groove 29 formed on which the Support surface 7 of the dismantling device 1 can attack. Therefore, the dismantling device 1 in this groove 29 of the fuel injector 22 laterally inserted.
  • the bearing surface 7 according to the invention crescent-shaped, d. H. towards the free ends 8, 9 rejuvenating, trained. This makes insertion easier the disassembly device 1, the support surface 7 a relatively large opening between the free ends 8 and 9 releases, which narrows increasingly.
  • the invention Training of the support surface 7 therefore has a self-adjusting effect. After putting on or sliding on the disassembly device 1 on the fuel injector 22 can the disassembly device as described the holes 10 and 11 by a crossbar or by a pliers-like tool can be gripped so that the fuel injector 22 from the receiving bore 21 of the Cylinder head 20 for maintenance or replacement purposes can be pulled out. Thereby gives the tubular Section 4 of the disassembly device 1 increased stability and firmness.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Claims (6)

  1. Dispositif de démontage (1) pour retirer un injecteur de carburant (22) monté dans un alésage d'accueil (21) d'une culasse (20) d'un moteur à combustion interne, dispositif qui comprend, enveloppant au moins en partie l'injecteur (22), un corps (2) qui présente au moins une partie de saisie (3) qui est en prise avec l'injecteur (22) par une portée d'appui (7) faisant saillie radialement vers l'intérieur,
    caractérisé en ce que
    la partie de saisie (3) du corps enveloppant (2) entoure l'injecteur (22) seulement dans une zone angulaire de 180° au maximum, entre deux extrémités libres (8, 9) en direction desquelles la portée d'appui (7) de cette partie de saisie (3) va en diminuant.
  2. Dispositif de démontage selon la revendication 1.
    caractérisé en ce que
    à la partie de saisie (3) se raccorde une partie tubulaire (4) entourant complètement l'injecteur (22).
  3. Dispositif de démontage selon la revendication 2,
    caractérisé en ce que
    la partie tubulaire (4) présente au moins un perçage (10, 11).
  4. Dispositif de démontage selon la revendication 2 ou 3,
    caractérisé en ce que
    la portée l'appui (7) se trouve sur l'extrémité (6), opposée à la partie tubulaire (4), de la partie de saisie (3).
  5. Dispositif de démontage selon une des revendications 1 à 4,
    caractérisé en ce que
    la portée d'appui (7) de la partie de saisie (3) est engagée dans une rainure (29) de l'injecteur (22).
  6. Dispositif de démontage selon une des revendications 1 à 5,
    caractérisé en ce que
    le dispositif de démontage (1) est en tôle d'acier ou en matière plastique renforcée par des fibres de verre.
EP99952329A 1998-11-20 1999-08-07 Dispositif pour le demontage d'une soupape d'injection de carburant Expired - Lifetime EP1064461B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19853586 1998-11-20
DE19853586A DE19853586A1 (de) 1998-11-20 1998-11-20 Demontagevorrichtung zur Demontage eines Brennstoffeinspritzventils
PCT/DE1999/002472 WO2000031410A1 (fr) 1998-11-20 1999-08-07 Dispositif pour le demontage d'une soupape d'injection de carburant

Publications (2)

Publication Number Publication Date
EP1064461A1 EP1064461A1 (fr) 2001-01-03
EP1064461B1 true EP1064461B1 (fr) 2004-08-04

Family

ID=7888460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99952329A Expired - Lifetime EP1064461B1 (fr) 1998-11-20 1999-08-07 Dispositif pour le demontage d'une soupape d'injection de carburant

Country Status (7)

Country Link
US (2) US6397445B1 (fr)
EP (1) EP1064461B1 (fr)
JP (1) JP2003517127A (fr)
KR (1) KR20010034226A (fr)
CZ (1) CZ294280B6 (fr)
DE (2) DE19853586A1 (fr)
WO (1) WO2000031410A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10335157A1 (de) * 2003-07-31 2005-03-03 Robert Bosch Gmbh Montagewerkzeug für Brennstoffeinspritzventile
DE102004060983B4 (de) * 2004-12-17 2017-02-02 Robert Bosch Gmbh Brennstoffeinspritzventil
US8490264B2 (en) * 2010-03-09 2013-07-23 International Engine Intellectual Property Company, Llc Disassembly station
CN103915948B (zh) * 2012-12-28 2016-09-21 胡森林 全自动转子网线机
DE102017212536B4 (de) * 2017-07-21 2022-03-24 Ford Global Technologies, Llc Werkzeug zum Heranführen einer flexiblen Leitung an ein Anschlussteil
DE102021214315A1 (de) 2021-12-14 2023-06-15 Robert Bosch Gesellschaft mit beschränkter Haftung Demontagevorrichtung zur Demontage eines Brennstoffeinspritzventils und Verfahren zur Demontage eines Brennstoffeinspritzventils

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US144074A (en) * 1873-10-28 Improvement in spike-bars
US949337A (en) * 1907-09-30 1910-02-15 Emery Bruley Nail or spike puller.
US3739452A (en) 1971-09-24 1973-06-19 W Gadberry Diesel engine injector puller
US4050148A (en) * 1976-06-14 1977-09-27 Cutler-Hammer, Inc. Snap-in bushing switch removal tool
US4293992A (en) 1979-09-17 1981-10-13 Webb James E Diesel fuel injector tool
US4305193A (en) * 1980-01-11 1981-12-15 Anderson Steven C Zone control valve removal tool and method
WO1981002538A1 (fr) * 1980-03-03 1981-09-17 D Baumann Dispositif d'extraction de soupape d'injection de carburant
US4561159A (en) 1984-02-23 1985-12-31 Schuster David V Adapter for removing diesel engine fuel injectors
US4780942A (en) * 1987-02-12 1988-11-01 Bernat Helmut R Fuel injector puller
US5014409A (en) * 1990-07-10 1991-05-14 Pro-Tool, Inc. Fuel injector puller
DE19705990A1 (de) * 1997-02-17 1998-08-20 Bosch Gmbh Robert Montagevorrichtung zur Montage eines Brennstoffeinspritzventils

Also Published As

Publication number Publication date
JP2003517127A (ja) 2003-05-20
CZ294280B6 (cs) 2004-11-10
US20020108223A1 (en) 2002-08-15
US6618918B2 (en) 2003-09-16
US6397445B1 (en) 2002-06-04
EP1064461A1 (fr) 2001-01-03
DE19853586A1 (de) 2000-05-25
KR20010034226A (ko) 2001-04-25
WO2000031410A1 (fr) 2000-06-02
CZ20002648A3 (en) 2001-05-16
DE59910139D1 (de) 2004-09-09

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