EP2425931A2 - Vorrichtung zum Lösen eines im Zylinderkopf eines Motors verklemmten abnehmbaren Motorteils - Google Patents

Vorrichtung zum Lösen eines im Zylinderkopf eines Motors verklemmten abnehmbaren Motorteils Download PDF

Info

Publication number
EP2425931A2
EP2425931A2 EP11180078A EP11180078A EP2425931A2 EP 2425931 A2 EP2425931 A2 EP 2425931A2 EP 11180078 A EP11180078 A EP 11180078A EP 11180078 A EP11180078 A EP 11180078A EP 2425931 A2 EP2425931 A2 EP 2425931A2
Authority
EP
European Patent Office
Prior art keywords
motor
cylinder head
loosening
injection nozzle
socket wrench
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
EP11180078A
Other languages
English (en)
French (fr)
Other versions
EP2425931A3 (de
EP2425931B1 (de
Inventor
Peter Gerardus Van Baal
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.)
Vibropac BV
Original Assignee
Vibropac BV
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 Vibropac BV filed Critical Vibropac BV
Publication of EP2425931A2 publication Critical patent/EP2425931A2/de
Publication of EP2425931A3 publication Critical patent/EP2425931A3/de
Application granted granted Critical
Publication of EP2425931B1 publication Critical patent/EP2425931B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B25B13/107—Spanners; Wrenches with adjustable jaws composed of a main body with exchangeable inserts
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/06—Spanners; Wrenches with rigid jaws of socket type
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/06—Spanners; Wrenches with rigid jaws of socket type
    • B25B13/065—Spanners; Wrenches with rigid jaws of socket type characterised by the cross-section of the socket
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • 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
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • 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

Definitions

  • the invention relates to a device for loosening of a detachable motor part, such as an injection nozzle or similar, that is jammed in a cylinder head of a motor, comprising a socket wrench with a hexagonal recess that is known as such, as well as at least to insert two peaces that can be inserted in the hexagonal recess of the socket wrench for adjusting the size of the socket wrench to the motor part.
  • the invention in general can be used for loosening any motor parts, the invention is in particularly suitable for application with injection nozzles.
  • the following explanation of the invention is therefore with reference to the use of the device with loosening an injection nozzle.
  • the invention is not limited to this and can also be used for loosening another motor part.
  • Injection nozzles are inserted in bores in the cylinder head of combustion engines, and comprise essentially a nose part and an upper part.
  • the nose part sits deep in the cylinder head, the upper part protrudes out of the cylinder head and the valve housing cover, and often comprises a connection for a pulling device and a recess for an open-end wrench.
  • the injection nozzle When an injection nozzle gets defected and needs to be replaced, the injection nozzle can be pulled out of the cylinder head of a combustion engine by using a pulling device. However, this can give problems, because during use combustion gasses can get between the injection nozzle and the cylinder head. With this, small particles, such as soot particles from these combusting gasses, can get stuck between the injection nozzle and the cylinder head. Also in the course of time corrosion can occur between the injection nozzle and the cylinder head that can cause adhesion to take place between the injection nozzle and the cylinder head. This corrosion can be oxygen corrosion that is accelerated by the high temperatures, but can also be corrosion that is caused by stray currents. Further dirt particles that mainly occur at the edges, can contribute to the injection nozzle getting stuck in the cylinder head.
  • the injection nozzle can be pulled out of the cylinder head as a whole.
  • the exerted pulling force is higher than the material strength. If this too high pulling force is exerted, the nose part will tear loose of the upper part and all internal parts remain behind in the cylinder head. In that case the cylinder head needs to be dismounted from the motor and attempts have to be made to remove the injection nozzle or the remains thereof with other means.
  • the invention aims to provide that dismounting of a (defect) injection nozzle from a cylinder head can take place in situ and without the injection nozzle breaking, without the necessity to dismount the cylinder head from the motor.
  • the device according to the invention is characterized by one or more of the attached patent claims.
  • each insert comprises a surface, that during use of the device for loosening of the motor part is in contact therewith, and is shaped in conformity of at least part of the external circumference of the motor part.
  • the effectiveness of the device according the invention for use in loosening a motor part that comprises an essentially cylindrically shaped external circumference that comprises recesses for a open end wrench, can in particular be increased by an embodiment in which the surface of each insert comprises a first surface part, that forms at least part of a cylinder casing, as well as an second surface part, contiguous to the first surface part, that fittingly can be inserted in at least one of the recesses for the open-end wrench.
  • the at least two insert peaces can fittingly to each other be inserted in the recess of the socket wrench. This reduces the number of necessary parts and nevertheless assures an effective transfer of forces from the socket wrench to the motor part.
  • the at least two insert peaces are embodied in more parts, that together form the at least two insert peaces.
  • the two insert peaces can engage at the lower side with the recess for an open-end wrench at the upper part of the injection nozzle, the insert peaces together having externally a hexagonal shape over which a socket wrench, that in itself is known, with a hexagonal recess can be slid.
  • the upper part can be unscrewed from the nose part, after which the remaining nose part subsequently can be removed using known techniques for which the applicant already possesses pending patent applications.
  • Figure 1 shows injection nozzle 1 in mounted condition, the injection nozzle 1 being placed in the cylinder head 2 of a motor.
  • the upper part of the injection nozzle 1 protrudes here through valve housing cover 3 of the motor.
  • the upper part of the injection nozzle 1 comprises a recess 6 for an open end wrench.
  • Figure 2 shows an exploded view with insert peaces 4, the socket wrench 5 in which these insert peaces 4 need to be inserted for use, as well as the upper part of the injection nozzle of which the recess 6 for an open-end wrench is clearly visible, and with which upper part the insert peaces 4 during use are in contact for effective transfer of a moment to be exerted with the socket wrench 5 on the upper part of the injection nozzle.
  • FIG. 3 shows in detail one of the insert peaces 4 according to the invention to be used, where it clearly can be seen that the surface of this insert piece 4 comprises a first surface part 4' that forms at least part of a cylindrical casing, and contiguous to this first surface part 4', the second surface part 4" that fittingly can be inserted in at least one of the recesses 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
EP11180078.5A 2010-09-03 2011-09-05 Vorrichtung zum Lösen eines im Zylinderkopf eines Motors verklemmten abnehmbaren Motorteils Active EP2425931B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2005310A NL2005310C2 (nl) 2010-09-03 2010-09-03 Inrichting voor het losdraaien van een klemmend in een cilinderkop van een motor stekend losneembaar motoronderdeel.

Publications (3)

Publication Number Publication Date
EP2425931A2 true EP2425931A2 (de) 2012-03-07
EP2425931A3 EP2425931A3 (de) 2016-04-20
EP2425931B1 EP2425931B1 (de) 2019-11-06

Family

ID=44862432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11180078.5A Active EP2425931B1 (de) 2010-09-03 2011-09-05 Vorrichtung zum Lösen eines im Zylinderkopf eines Motors verklemmten abnehmbaren Motorteils

Country Status (2)

Country Link
EP (1) EP2425931B1 (de)
NL (1) NL2005310C2 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606523A1 (de) 1993-01-12 1994-07-20 Kwang-Moo Kim Steckhülse für Schraubenschlüssel

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR898139A (fr) * 1942-11-04 1945-04-11 Argus Motoren Gmbh Assemblage vissé se démontant sous l'action d'un choc

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606523A1 (de) 1993-01-12 1994-07-20 Kwang-Moo Kim Steckhülse für Schraubenschlüssel

Also Published As

Publication number Publication date
EP2425931A3 (de) 2016-04-20
NL2005310C2 (nl) 2012-03-06
EP2425931B1 (de) 2019-11-06

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