DE29916577U1 - Device for measuring injection bores on fuel injection valves for internal combustion engines - Google Patents

Device for measuring injection bores on fuel injection valves for internal combustion engines

Info

Publication number
DE29916577U1
DE29916577U1 DE29916577U DE29916577U DE29916577U1 DE 29916577 U1 DE29916577 U1 DE 29916577U1 DE 29916577 U DE29916577 U DE 29916577U DE 29916577 U DE29916577 U DE 29916577U DE 29916577 U1 DE29916577 U1 DE 29916577U1
Authority
DE
Germany
Prior art keywords
valve
fuel injection
internal combustion
combustion engines
measuring
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
DE29916577U
Other languages
German (de)
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.)
Mycrona Gesellschaft fuer Innovative Messtechnik mbH
Original Assignee
Mycrona Gesellschaft fuer Innovative Messtechnik mbH
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 Mycrona Gesellschaft fuer Innovative Messtechnik mbH filed Critical Mycrona Gesellschaft fuer Innovative Messtechnik mbH
Priority to DE29916577U priority Critical patent/DE29916577U1/en
Priority to DE10009946A priority patent/DE10009946A1/en
Publication of DE29916577U1 publication Critical patent/DE29916577U1/en
Priority to EP00964226A priority patent/EP1221018A1/en
Priority to PCT/EP2000/009299 priority patent/WO2001022030A1/en
Priority to DE20023783U priority patent/DE20023783U1/en
Priority to AU75221/00A priority patent/AU7522100A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
    • G01B11/12—Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Testing Of Engines (AREA)

Description

Vorrichtung zinn Vermessen von Einspritzbohrungen anDevice tin measuring injection holes on Kraftstoffeinspritzventilen für BrennkraftmaschinenFuel injection valves for internal combustion engines

Stand der TechnikState of the art

Die Erfindung beschreibt ein Vorrichtung, mit welcher die Einlaufbohrungen in einem Kraftstoffeinspritzventil im Innern dieses Ventils ohne optische Verfälschung gemessen werden können.The invention describes a device with which the inlet bores in a fuel injection valve can be measured inside this valve without optical distortion.

Bei bereits bekannten Meßverfahren (z.B. DE 196 11 613) besteht ein Mangel darin, daß die Messung der Unterkante der Bohrung, auch Einlaufbohrung genannt, welche sich im Innern des Ventils befindet, durch das Bohrloch selbst erfolgt.A disadvantage of already known measuring methods (e.g. DE 196 11 613) is that the measurement of the lower edge of the bore, also called the inlet bore, which is located inside the valve, is carried out through the borehole itself.

Durch die Bohrung entsteht eine optische Blende, welche die Messung mittels eines optoelektronischen Sensors, z.B. CCD-Kamera verfälscht.The hole creates an optical aperture, which distorts the measurement using an optoelectronic sensor, e.g. a CCD camera.

Sind die Bohrungen sehr klein, kann diese Einlaufbohrung mit dem oben genannten Verfahren nicht mehr gemessen werden.If the holes are very small, this inlet hole can no longer be measured using the method described above.

Be s ehre ibungHonor

Im Folgenden wird ein Vorrichtung zur Vermessung der Einlaufbohrung (1) von Einspritzbohrungen (2) im Innern von Kraftstoffeinspritzventilen (3) für Brennkraftmaschinen beschrieben.The following describes a device for measuring the inlet bore (1) of injection bores (2) inside fuel injection valves (3) for internal combustion engines.

Zur Vermessung der Einlaufbohrung (1) im Innern eines Einspritzventils wird in das Ventil ein Spiegel(4) eingebracht, welcher ein Oberflächenspiegel oder auchTo measure the inlet bore (1) inside an injection valve, a mirror (4) is inserted into the valve, which is a surface mirror or

&iacgr;&ogr; ein Prisma sein kann, und so ausgerichtet, daß der Strahlengang(6) einer optoelektronischen Erfassungseinrichtung (CCD-Kamera)(5), welche sich außerhalb des Ventils befindet, durch den Spiegel abgelenkt und senkrecht auf die Wand(7) auftrifft, durch die die Bohrung (2) stößt.&iacgr;&ogr; can be a prism, and aligned so that the beam path (6) of an optoelectronic detection device (CCD camera) (5) located outside the valve is deflected by the mirror and strikes the wall (7) perpendicularly through which the bore (2) penetrates.

Durch Drehen des Ventils um die Längsachse(8) können so mit feststehendem Spiegel(4) alle Einspritzbohrungen in die Fokusebene(9) der optischen Erfassungseinrichtung(5) geschwenkt werden.By rotating the valve around the longitudinal axis (8), all injection holes can be swiveled into the focal plane (9) of the optical detection device (5) with the fixed mirror (4).

Um das Einspritzventil im Innern beleuchten zu können, wird Licht(10) mittels eines Strahlteilers(11) in die optische Achse(12) der optoelektronischen Erfassungseinrichtung (5) eingespiegelt.In order to be able to illuminate the injection valve inside, light (10) is reflected into the optical axis (12) of the optoelectronic detection device (5) by means of a beam splitter (11).

Claims (10)

1. Vorrichtung zur Vermessung der Einlaufbohrung(1) von Einspritzbohrungen(2) im Innern von Kraftstoffeinspritzventilen (3) für Brennkraftmaschinen, gekennzeichnet dadurch, daß die Einlaufbohrung(1) des Ventils von innen mit einer optoelektronischen Erfassungseinrichtung (5) gemessen wird. 1. Device for measuring the inlet bore ( 1 ) of injection bores ( 2 ) inside fuel injection valves ( 3 ) for internal combustion engines, characterized in that the inlet bore ( 1 ) of the valve is measured from the inside with an optoelectronic detection device ( 5 ). 2. Vorrichtung nach Anspruch 1, gekennzeichnet dadurch, daß in das Ventil ein Spiegel (4) zur Umlenkung der optischen Achse (12) eingebracht ist. 2. Device according to claim 1, characterized in that a mirror ( 4 ) for deflecting the optical axis ( 12 ) is introduced into the valve. 3. Vorrichtung nach Anspruch 1 und 2, gekennzeichnet dadurch, daß Licht (10) mittels eines Strahlteilers (11) in die optische Achse (12) eingespiegelt wird. 3. Device according to claim 1 and 2, characterized in that light ( 10 ) is reflected into the optical axis ( 12 ) by means of a beam splitter ( 11 ). 4. Vorrichtung nach Anspruch 1, 2 und 3, gekennzeichnet dadurch, daß das Kraftstoffeinspritzventil um seine Längsachse (8) drehbar ist. 4. Device according to claim 1, 2 and 3, characterized in that the fuel injection valve is rotatable about its longitudinal axis ( 8 ). 5. Vorrichtung nach Anspruch 1, gekennzeichnet dadurch, daß zu der optoelektronischen Erfassungseinrichtung (5) eine Kamera gehört. 5. Device according to claim 1, characterized in that the optoelectronic detection device ( 5 ) includes a camera. 6. Vorrichtung nach Anspruch 1, gekennzeichnet dadurch, daß zu der optoelektronischen Erfassungseinrichtung (5) ein Objektiv gehört. 6. Device according to claim 1, characterized in that the optoelectronic detection device ( 5 ) includes an objective lens. 7. Vorrichtung nach Anspruch 5 und 6, gekennzeichnet dadurch, daß sich die optoelektronische Erfassungseinrichtung (5) nicht in dem Ventil befindet. 7. Device according to claim 5 and 6, characterized in that the optoelectronic detection device ( 5 ) is not located in the valve. 8. Vorrichtung nach Anspruch 2, wonach der Spiegel(4) auch ein Prisma sein kann. 8. Device according to claim 2, according to which the mirror ( 4 ) can also be a prism. 9. Vorrichtung nach Anspruch 2, gekennzeichnet dadurch, daß der Spiegel (4) in seiner Lage verändert werden kann. 9. Device according to claim 2, characterized in that the mirror ( 4 ) can be changed in its position. 10. Vorrichtung nach Anspruch 1 und 2, gekennzeichnet dadurch, daß Licht (13) von außen durch die Einspritzbohrung (2) strahlt. 10. Device according to claim 1 and 2, characterized in that light ( 13 ) shines from outside through the injection bore ( 2 ).
DE29916577U 1999-09-22 1999-09-22 Device for measuring injection bores on fuel injection valves for internal combustion engines Expired - Lifetime DE29916577U1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE29916577U DE29916577U1 (en) 1999-09-22 1999-09-22 Device for measuring injection bores on fuel injection valves for internal combustion engines
DE10009946A DE10009946A1 (en) 1999-09-22 2000-03-02 Device for measuring bores
EP00964226A EP1221018A1 (en) 1999-09-22 2000-09-22 Device for geometric determination of poorly accessible hollows in one workpiece
PCT/EP2000/009299 WO2001022030A1 (en) 1999-09-22 2000-09-22 Device for geometric determination of poorly accessible hollows in one workpiece
DE20023783U DE20023783U1 (en) 1999-09-22 2000-09-22 Optoelectronic device for measuring internal dimensions e.g. of injection holes in fuel injection valve for internal combustion engine, has deflection mirror for directing light from source onto detector
AU75221/00A AU7522100A (en) 1999-09-22 2000-09-22 Device for geometric determination of poorly accessible hollows in one workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29916577U DE29916577U1 (en) 1999-09-22 1999-09-22 Device for measuring injection bores on fuel injection valves for internal combustion engines

Publications (1)

Publication Number Publication Date
DE29916577U1 true DE29916577U1 (en) 2000-03-02

Family

ID=8079198

Family Applications (2)

Application Number Title Priority Date Filing Date
DE29916577U Expired - Lifetime DE29916577U1 (en) 1999-09-22 1999-09-22 Device for measuring injection bores on fuel injection valves for internal combustion engines
DE10009946A Ceased DE10009946A1 (en) 1999-09-22 2000-03-02 Device for measuring bores

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE10009946A Ceased DE10009946A1 (en) 1999-09-22 2000-03-02 Device for measuring bores

Country Status (1)

Country Link
DE (2) DE29916577U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003050474A1 (en) * 2001-12-07 2003-06-19 Robert Bosch Gmbh Device for optically measuring boreholes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1391691B1 (en) * 2002-08-06 2012-01-11 MYCRONA Gesellschaft für innovative Messtechnik mbH Methods and apparatus for determining the diameter of a through hole in a workpiece.
DE10254104B4 (en) * 2002-08-06 2010-04-01 Mycrona Gesellschaft für innovative Messtechnik mbH Method and apparatus for determining the diameter of a hole in a workpiece and the orientation and position of the axis of the hole

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003050474A1 (en) * 2001-12-07 2003-06-19 Robert Bosch Gmbh Device for optically measuring boreholes
US7184140B2 (en) 2001-12-07 2007-02-27 Robert Bosch Gmbh Device for optically measuring boreholes

Also Published As

Publication number Publication date
DE10009946A1 (en) 2001-05-03

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