[go: up one dir, main page]

EP0997635A3 - Method for testing a throttle point, especially a throttle point of an injector - Google Patents

Method for testing a throttle point, especially a throttle point of an injector Download PDF

Info

Publication number
EP0997635A3
EP0997635A3 EP99121321A EP99121321A EP0997635A3 EP 0997635 A3 EP0997635 A3 EP 0997635A3 EP 99121321 A EP99121321 A EP 99121321A EP 99121321 A EP99121321 A EP 99121321A EP 0997635 A3 EP0997635 A3 EP 0997635A3
Authority
EP
European Patent Office
Prior art keywords
throttle point
operating points
testing
injector
pressure level
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Withdrawn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
EP99121321A
Other languages
German (de)
French (fr)
Other versions
EP0997635A2 (en
Inventor
Bernhard Schütz
Bernd Danckert
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.)
Rolls Royce Solutions GmbH
Original Assignee
MTU Friedrichshafen 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 MTU Friedrichshafen GmbH filed Critical MTU Friedrichshafen GmbH
Publication of EP0997635A2 publication Critical patent/EP0997635A2/en
Publication of EP0997635A3 publication Critical patent/EP0997635A3/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Withdrawn legal-status Critical Current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
    • F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Es wird ein Verfahren zum Prüfen einer Drosselstelle, insbesondere der Drosselstelle eines Injektors vorgeschlagen. Diese wird von einer Pumpe mit einem ersten konstanten Druckniveau (p1) primärseitig beaufschlagt wobei der von der Pumpe gelieferte Volumenstrom Q des hydraulischen Druckmediums erfaßt wird. Es wird ein erster und weitere Betriebspunkte bestimmt. Die weiteren Betriebspunkte werden über die Veränderung eines zweiten, vorgebbaren sekundärseitigen Druckniveau (p2) ermittelt. Der erste Betriebspunkt bestimmt maßgeblich ein Kennlinienfeld (KF), welches ein Bereich zulässiger und nicht zulässiger Betriebspunkte aufweist. Anhand der Position der weiteren Betriebspunkte im Kennlinienfeld (KF) wird ein positives bzw. negatives Prüfergebnis detektiert.The invention relates to a method for testing a throttle point, in particular the throttle point Injector suggested. This is done by a pump with a first constant Pressure level (p1) applied on the primary side, the one supplied by the pump Volume flow Q of the hydraulic pressure medium is detected. It will be a first and determined further operating points. The other operating points are the Change in a second, predeterminable secondary pressure level (p2) determined. The The first operating point determines a characteristic field (KF), which is an area permissible and non-permissible operating points. Based on the position of the others Operating points in the characteristic field (KF) becomes a positive or negative test result detected.

EP99121321A 1998-10-31 1999-10-26 Method for testing a throttle point, especially a throttle point of an injector Withdrawn EP0997635A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19850221 1998-10-31
DE1998150221 DE19850221C1 (en) 1998-10-31 1998-10-31 Method for testing a throttle point, in particular a throttle point of an injector

Publications (2)

Publication Number Publication Date
EP0997635A2 EP0997635A2 (en) 2000-05-03
EP0997635A3 true EP0997635A3 (en) 2002-04-10

Family

ID=7886251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99121321A Withdrawn EP0997635A3 (en) 1998-10-31 1999-10-26 Method for testing a throttle point, especially a throttle point of an injector

Country Status (2)

Country Link
EP (1) EP0997635A3 (en)
DE (1) DE19850221C1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10115924A1 (en) * 2001-03-30 2002-10-24 Bosch Gmbh Robert Test bench for determining pressures on pressurized components
DE10133357C1 (en) * 2001-07-13 2003-03-13 Mtu Friedrichshafen Gmbh Control and regulation method for IC engine adjusts air component of fuel/air mixture supplied to engine
DE102004006896A1 (en) 2004-02-12 2005-09-15 Mtu Friedrichshafen Gmbh Method for control and regulation of an IC engine with common-rail system uses calculation of injection end and injection begin deviations to evaluate fuel injectors
DE102006034514B4 (en) * 2006-07-26 2014-01-16 Mtu Friedrichshafen Gmbh Method for controlling an internal combustion engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293725A (en) * 1941-03-29 1942-08-25 Ernest F Flock Orifice comparator
US4122707A (en) * 1976-07-07 1978-10-31 Volkswagenwerk Aktiengesellschaft Flow test stand
DE3217111A1 (en) * 1982-05-07 1983-11-10 Pierburg Gmbh & Co Kg, 4040 Neuss Method of testing and/or of adjusting restriction points of variable cross-section, and a device for carrying out this method
US5539648A (en) * 1988-08-13 1996-07-23 Amchem Company Limited Method of producing a mutli-apertured workpiece

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3128072A1 (en) * 1980-11-08 1982-06-24 Robert Bosch Gmbh, 7000 Stuttgart TEST STAND FOR TESTING INJECTION NOZZLES
DE19632339A1 (en) * 1996-08-10 1998-02-12 Bosch Gmbh Robert Method and device for monitoring a flow limiter of a fuel metering system of an internal combustion engine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293725A (en) * 1941-03-29 1942-08-25 Ernest F Flock Orifice comparator
US4122707A (en) * 1976-07-07 1978-10-31 Volkswagenwerk Aktiengesellschaft Flow test stand
DE3217111A1 (en) * 1982-05-07 1983-11-10 Pierburg Gmbh & Co Kg, 4040 Neuss Method of testing and/or of adjusting restriction points of variable cross-section, and a device for carrying out this method
US5539648A (en) * 1988-08-13 1996-07-23 Amchem Company Limited Method of producing a mutli-apertured workpiece

Also Published As

Publication number Publication date
EP0997635A2 (en) 2000-05-03
DE19850221C1 (en) 2000-05-04

Similar Documents

Publication Publication Date Title
DE19622071B4 (en) Fuel delivery system for internal combustion engine
DE2614947C2 (en) Circuit arrangement for position detection of a rotating part
DE102009001188A1 (en) Knock detection device and knock detection system diagnostic device
DE3602292A1 (en) TRANSMITTER ARRANGEMENT
EP0997635A3 (en) Method for testing a throttle point, especially a throttle point of an injector
DE3100459A1 (en) ARRANGEMENT FOR CONTROLLING AN ELECTROMAGNETIC CLUTCH FOR A MOTOR VEHICLE
DE2440124A1 (en) SEALING DEVICE
WO2018095491A1 (en) Device and method for checking a functionality of a sensor
DE102015223900A1 (en) Method and device for detecting a speed in a generator unit
DE3213587A1 (en) DEVICE FOR GENERATING A KNOCKING SIGNAL IN AN INTERNAL COMBUSTION ENGINE
EP0587605A1 (en) Pinking detection process.
DE102007031904B4 (en) Cutting and / or scoring tool
DE102024109941B4 (en) Sensor for non-contact magnetic detection of linear relative movement of a holding magnet and method for non-contact magnetic detection of linear relative movement of a holding magnet
DE10258493A1 (en) Radius of curvature determination method for a curve or contour, for use in manufacturing, whereby a contour is divided into sections of equal predefined length
WO2021170439A1 (en) Method and device for carrying out a qpcr method
DE1956098A1 (en) Procedure for determining the adhesive strength of paint layers
DE2719833B2 (en)
WO2003034081A1 (en) Method and device for detecting a short circuit on signalling lines of a sensor, in particular a knock sensor on an internal combustion engine
DE253601C (en)
DE2713131C3 (en) Method and device for converting the signal received by a photoelectric receiver when scanning marks into a binary signal
DE4425986A1 (en) Method and device for controlling an internal combustion engine
DE4429191A1 (en) Algorithm for modelling status changes e.g. in electrical power transmission networks
EP1624299B1 (en) Method for determining the parameters of a gaselectrode
DE102018208051A1 (en) A method and apparatus for classifying a steering behavior of a driver of a vehicle into one of a plurality of behavior control classes for a fatigue detection
DE102023131753A1 (en) Distance monitoring procedures

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19991026

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

Kind code of ref document: A2

Designated state(s): AT DE FR GB

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MTU FRIEDRICHSHAFEN GMBH

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

AKX Designation fees paid

Free format text: AT BE CH CY LI

RBV Designated contracting states (corrected)

Designated state(s): AT DE FR GB

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

17Q First examination report despatched

Effective date: 20060726

17Q First examination report despatched

Effective date: 20060726

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20070424