EP1561029B2 - Procede et dispositif pour mesurer le debit d'injection d'un injecteur de liquides - Google Patents

Procede et dispositif pour mesurer le debit d'injection d'un injecteur de liquides Download PDF

Info

Publication number
EP1561029B2
EP1561029B2 EP03809686A EP03809686A EP1561029B2 EP 1561029 B2 EP1561029 B2 EP 1561029B2 EP 03809686 A EP03809686 A EP 03809686A EP 03809686 A EP03809686 A EP 03809686A EP 1561029 B2 EP1561029 B2 EP 1561029B2
Authority
EP
European Patent Office
Prior art keywords
pressure
injection
measurement
measurement volume
volume
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
EP03809686A
Other languages
German (de)
English (en)
Other versions
EP1561029B1 (fr
EP1561029A1 (fr
Inventor
Ulrich Kuhn
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=32087191&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1561029(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1561029A1 publication Critical patent/EP1561029A1/fr
Publication of EP1561029B1 publication Critical patent/EP1561029B1/fr
Application granted granted Critical
Publication of EP1561029B2 publication Critical patent/EP1561029B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F02M65/001—Measuring fuel delivery of a fuel injector
    • 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
    • F02M65/005—Measuring or detecting injection-valve lift, e.g. to determine injection timing

Definitions

  • the injected fuel causes pressure oscillations in the corresponding natural frequencies of the measuring volume, these natural frequencies depending on the geometric dimensions of the measuring volume.
  • many harmonics are usually excited, with several vibration modes are usually possible. This makes it difficult to filter the pressure sensor measuring signal, since the frequencies of the natural oscillations are partly in the range of the frequencies of the measuring signal.
  • the density depends on the temperature of the test medium. To take this into account, the temperature will be Measured in the measuring volume by means of a temperature sensor and the density corrected accordingly. The temperature measurement is selective and does not take into account a possibly unequal temperature in the entire measuring volume. Such a method is described in WO 02/064970 A described.
  • the device according to the invention with the features of claim 1 has the advantage that can be determined from the pressure curve in a simple manner, the injection quantity.
  • the time course of the pressure in the measuring volume is recorded during the injection and from this the time course of the injection quantity is calculated.
  • the sound velocity is determined. From the increase in pressure and the speed of sound can then directly the injection quantity or its time course, so calculate the rate of injection rate.
  • the speed of sound is determined by means of a separate measurement process, in which a sound pulse is emitted by a sound generator into the measurement volume and is collected by the pressure sensor. If the sound generator and the pressure sensor are arranged opposite each other, the sound velocity can be calculated directly from the distance and the running time. This is a very fast measuring method, which causes hardly any significant delays in the measurement process.
  • the measurement data of the pressure curve are stored with the aid of an electronic computer, which also makes a direct further processing of the data possible.
  • the frequency of a natural pressure oscillation of the measuring volume is determined from the pressure measured values. From the natural frequency, the sound velocity then results as an average value over the entire measurement volume, without the need for a separate measurement with corresponding devices.
  • the filtering of the pressure measured values is carried out, for example, with a low-pass filter, so that disturbances and noise are largely eliminated. From the time differentiation of the pressure signal can then determine the injection rate.
  • the device according to the invention with the features of claim 1 has the advantage over the prior art that the measurement signal can be better filtered.
  • the pressure sensor is arranged in the pressure node of the first compressive natural vibration, that is, the natural vibration, so that the pressure sensor does not detect a signal of the natural vibration. Therefore, the cut-off frequency of the low-pass filter can be shifted upwards by a factor of two for smoothing the pressure measurement values.
  • FIG. 1 the measuring device is shown in a partially sectioned view.
  • a cylindrical measuring volume 1 with a wall 2 is completely filled with a test liquid, wherein the measuring volume 1 is completed on all sides.
  • the wall 2 has a first base area 102 and a second base area 202, which are connected by the side wall 303, which has a longitudinal axis 4.
  • an injection valve 3 projects with its tip into the measuring volume 1, wherein the passage of the injection valve 3 is closed by the wall 2 liquid-tight.
  • the injection valve 3 has a valve body 7, in which in a bore 6, a piston-shaped valve needle 5 is arranged longitudinally displaceable.
  • test liquid flows from a pressure space 9 formed between the valve needle 5 and the wall of the bore 6 to the injection openings 12 and is injected from there into the measuring volume 1 until the injection openings 12 pass through the valve needle 5 are closed again.
  • the injection of the test liquid takes place here with a high pressure, which can be up to 200 MPa depending on the injection valve used.
  • a pressure holding valve 17 line 16 In the side wall 303 of the cylindrical wall 2 opens a connected to a pressure holding valve 17 line 16, can be derived by the test liquid from the measuring volume 1 in a not shown in the drawing leakage volume.
  • a control valve 15 is also arranged, through which the line 16 can be closed if necessary, if a derivation of test liquid from the measuring volume 1 is not desired.
  • the pressure-maintaining valve 17 ensures that a certain pressure in the measuring volume 1 is maintained and this always remains completely filled with liquid.
  • a holder 22 projects through the second base 202 of the wall 2 into the measuring volume 1.
  • a pressure sensor 20 is arranged, which is connected via a signal line 24, which leads out of the measuring volume 1 in the holder 22 with an electronic computer 28, wherein the passage of the holder 22 is sealed by the wall 2 liquid-tight.
  • the pressure sensor 20 is arranged in the median plane between the two base surfaces 102, 202 of the wall 2 and thus has the same distance to both base surfaces 102, 202. Since the pressure sensor 20 is also located on the longitudinal axis 4, it has to the side surface 303 on all sides the same distance s.
  • the signal that the pressure sensor 20 supplies read and stored electronically.
  • the pressure sensor 20 is constructed, for example, on a piezo-based basis, so that even rapid changes in pressure can be measured without appreciable delay.
  • a sounder 21 is arranged, which has the distance s from the pressure sensor 20.
  • a separate sound receiver 30 diametrically opposite the sounder 21 on the side surface 303 in order to obtain the largest possible distance of the sound signal and thus greater accuracy in determining the speed of sound c.
  • the time course of the pressure is measured, from which in turn the injection rate r (t) can be determined, ie the amount dm (t) of the test fluid injected per unit time dt.
  • the pressure in the measuring volume 1 increases. Liquids are virtually incompressible compared to gases, so that even a small increase in volume leads to a well-measurable pressure increase. Due to the impact-like introduction of the test liquid, pressure oscillations are excited in the measuring volume 1.
  • the natural frequencies depend on the geometric dimensions of the measurement volume 1:
  • FIG. 2 shows this first natural compressive vibration schematically, wherein the lines designated p show the pressure curve, in which at the edges bellies are to be found and in the middle, ie in the radial plane of the cylindrical measuring volume in which the pressure sensor 20 is disposed, a pressure node.
  • the pressure sensor 20 does not register the first natural pressure vibration since no pressure changes occur at the pressure node. Nor are the 2nd, 4th and all other even harmonics recorded by the pressure sensor 20.
  • the procedure is as follows: Into the measuring volume 1, in which the test liquid is located, the injection valve 3 injects a certain amount of liquid by a rapid longitudinal movement of the valve needle 5, through which the injection openings 12 are opened and closed again.
  • the pressure sensor 20 measures the pressure p (t) which is read out and stored by the computer 28 at a specific rate of, for example, 100 kHz.
  • equation (III) is used.
  • the measured values p (t) stored in the computer are time-differentiated and multiplied by the factor V / c 2 , which directly yields the injection rate r (t).
  • the cut-off frequency ⁇ G for the low-pass filter can be selected to be twice as large as the first fundamental vibration is not registered by the pressure sensor 20.
  • the smoothed pressure readings are then differentiated in time, and after multiplication by the factor V / c 2 results in a known volume V, the injection rate r (t).
  • the speed of sound c can also be determined in a separate method.
  • FIG. 3 shows the time course of pressure p (t) and its derivative dp (t) / dt as a function of time t in arbitrary units U.
  • an injector as used for direct-injection, auto-ignition internal combustion engines, this corresponds to a fuel injection, which is divided into a pilot or pilot injection and a subsequent main injection.
  • the derivative dp (t) / dt gives a value which is proportional to the injection rate r (t).
  • V / c 2 By multiplication by the factor V / c 2 , one finally obtains from this the absolute value of the injection rate r (t).
  • the measurement method together with the described measurement setup thus makes it possible to measure the pressure profile and to determine the speed of sound c under the current test conditions, from which the injection quantity and the injection rate can be determined. If the speed of sound c is calculated from the frequency of the natural vibrations, then all the necessary variables from the pressure curve can be determined, which excludes errors due to additional components. Due to the arrangement of the pressure sensor 20 exactly between the two base areas 102, 202, the cut-off frequency ⁇ G of the low-pass filter can be raised to twice the frequency of the fundamental vibration ⁇ e , without a qualitative impairment is to be expected by the filtering. Elaborate calibration procedures, in which the speed of sound is determined in a separate measurement method, can thus be dispensed with.
  • the test fluid may be fuel or another fluid whose properties are similar to that used in normal use of the fuel injector.
  • the measurement volume 1 need not be cylindrical, but instead of a cylinder, a cuboid measuring volume 1 or another suitable shape may be provided, for example a ball.
  • the pressure sensor 20 is also arranged here in a pressure node of the first natural pressure vibration of the measuring volume 1 in order to set the cutoff frequency for the filtering as high as possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Volume Flow (AREA)
  • Measuring Fluid Pressure (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Claims (6)

  1. Dispositif pour mesurer le débit d'injection (r(t)) d'un injecteur (3) de liquides avec un volume de mesure (1) scellé de tous côtés et rempli avec un liquide d'essai, une ouverture (10) dans la paroi (2) du volume de mesure (1) pour recevoir un injecteur (3), de sorte que l'injecteur (3) en position d'installation pénètre avec au moins une ouverture d'injection (12) dans le volume de mesure (1), et avec un capteur de pression (20) dans le volume de mesure (1), caractérisé en ce que
    le capteur de pression (20) est placé dans le noeud de pression de la première oscillation de pression propre du volume de mesure (1), et la vitesse du son peut être déterminée par mesure du temps de propagation d'un signal sonore dans le volume de mesure (1), ou directement à partir des valeurs de mesure de pression.
  2. Dispositif selon la revendication 1, caractérisé en ce que le volume de mesure (1) a une forme cylindrique.
  3. Dispositif selon la revendication 2, caractérisé en ce que le capteur de pression (20) est dans le plan radial à mi-chemin entre les deux surfaces de base (102; 202) du cylindre.
  4. Dispositif selon la revendication 1, caractérisé en ce qu'un ordinateur (28) enregistre et mémorise les valeurs de mesure du capteur de pression (20).
  5. Dispositif selon la revendication 4, caractérisé en ce que l'ordinateur (28) exécute un programme de calcul des fréquences fondamentales du volume de mesure (V) à partir des valeurs de mesure de pression enregistrées (p(t)).
  6. Dispositif selon la revendication 1, caractérisé par une source sonore (21) et un capteur de son (30) dans le volume de mesure (V).
EP03809686A 2002-10-25 2003-06-04 Procede et dispositif pour mesurer le debit d'injection d'un injecteur de liquides Expired - Lifetime EP1561029B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10249754A DE10249754A1 (de) 2002-10-25 2002-10-25 Verfahren und Vorrichtung zur Messung der Einspritzrate eines Einspritzventils für Flüssigkeiten
DE10249754 2002-10-25
PCT/DE2003/001852 WO2004040129A1 (fr) 2002-10-25 2003-06-04 Procede et dispositif pour mesurer le debit d'injection d'un injecteur de liquides

Publications (3)

Publication Number Publication Date
EP1561029A1 EP1561029A1 (fr) 2005-08-10
EP1561029B1 EP1561029B1 (fr) 2006-08-23
EP1561029B2 true EP1561029B2 (fr) 2011-07-06

Family

ID=32087191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03809686A Expired - Lifetime EP1561029B2 (fr) 2002-10-25 2003-06-04 Procede et dispositif pour mesurer le debit d'injection d'un injecteur de liquides

Country Status (6)

Country Link
US (1) US7171847B2 (fr)
EP (1) EP1561029B2 (fr)
JP (1) JP4130823B2 (fr)
AT (1) ATE337484T1 (fr)
DE (2) DE10249754A1 (fr)
WO (1) WO2004040129A1 (fr)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004049002A1 (de) * 2004-10-06 2006-04-13 Robert Bosch Gmbh Verfahren zur Messung der Dichtheit eines Einspritzventils für Flüssigkeiten
ATE482379T1 (de) * 2005-07-20 2010-10-15 Aea Srl Messgerät zur messung der von einem injektor eingepritzten fluidmenge
DE102005040768B4 (de) * 2005-08-24 2007-05-10 Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr Verfahren und Vorrichtung zur Einspritzraten- und/oder Einspritzmassenbestimmung
DE102005056153A1 (de) * 2005-11-23 2007-05-24 Robert Bosch Gmbh Verfahren und Vorrichtung zur Messung der Einspritzmenge und der Einspritzrate eines Einspritzventils für Flüssigkeiten
JP5103600B2 (ja) * 2007-07-09 2012-12-19 国立大学法人群馬大学 気体燃料インジェクタの瞬間流量計測方法
DE102007032745A1 (de) 2007-07-13 2009-01-15 Robert Bosch Gmbh Erfassung des Totaldrucks in Gasmassenströmen von Verbrennungsmotoren
GB0713678D0 (en) * 2007-07-13 2007-08-22 Delphi Tech Inc Apparatus and methods for testing a fuel injector nozzle
DE102008040628A1 (de) 2008-07-23 2010-01-28 Robert Bosch Gmbh Verfahren und Vorrichtung zur Messung der mit einem Einspritzventil eingespritzten Flüssigkeitsmenge
US7950267B2 (en) * 2008-07-30 2011-05-31 Bi-Phase Technologies, Llc Liquid propane gas injector testing system and methods
IT1392001B1 (it) * 2008-11-27 2012-02-09 Aea Srl Metodo per misurare la portata istantanea di un iniettore per combustibili gassosi
EP2295788A1 (fr) * 2009-08-06 2011-03-16 Continental Automotive GmbH Procédé et agencement pour déterminer un débit de masse d'un procédé d'injection d'une soupape d'injection
JP5418259B2 (ja) * 2010-02-02 2014-02-19 株式会社デンソー 噴射量計測装置
DE102010002898A1 (de) * 2010-03-16 2011-09-22 Robert Bosch Gmbh Verfahren und Vorrichtung zur Bewertung eines Einspritzorgans
JP5790999B2 (ja) * 2011-03-08 2015-10-07 株式会社リコー 冷却装置及び画像形成装置
DE102011007611B4 (de) 2011-04-18 2022-01-27 Robert Bosch Gmbh Vorrichtung und Verfahren zur Ermittlung zumindest einer Spritzmenge und/oder einer Spritzrate einer mit einem Ventil verspritzten Flüssigkeit
FR2995640B1 (fr) * 2012-09-19 2015-03-20 Efs Sa Dispositif de mesure d’une quantite de fluide injectee par un injecteur
JP5918683B2 (ja) * 2012-10-16 2016-05-18 株式会社小野測器 噴射計測装置
JP5956912B2 (ja) * 2012-11-08 2016-07-27 株式会社小野測器 噴射計測装置及び体積弾性係数計測装置
JP5956915B2 (ja) * 2012-11-15 2016-07-27 株式会社小野測器 噴射計測装置及び体積弾性係数計測装置
JP6163013B2 (ja) * 2013-05-15 2017-07-12 株式会社小野測器 噴射計測装置
JP6163012B2 (ja) * 2013-05-15 2017-07-12 株式会社小野測器 噴射計測装置
CN104295425B (zh) * 2014-06-05 2017-04-12 河南科技大学 一种喷油规律测量系统和测量方法
DE102014211498B4 (de) 2014-06-16 2018-03-01 Ford Global Technologies, Llc Verbesserung zeitlicher Mengenverlaufsmessung instationärer Einspritzvorgänge schwach kompressibler Medien
DE102014212392A1 (de) * 2014-06-27 2015-12-31 Robert Bosch Gmbh Verfahren und Vorrichtung zur Charakterisierung eines Injektors
JP6344851B2 (ja) * 2014-08-26 2018-06-20 株式会社小野測器 噴射計測装置
JP6306983B2 (ja) * 2014-08-26 2018-04-04 株式会社小野測器 噴射計測装置及び噴射計測方法
JP6335070B2 (ja) * 2014-08-26 2018-05-30 株式会社小野測器 噴射計測装置及び噴射計測方法
DE102014225858A1 (de) * 2014-12-15 2016-06-16 Robert Bosch Gmbh Verfahren zum Kalibrieren eines mikromechanischen Sensorelements und ein System zum Kalibrieren einesmikromechanischen Sensorelements
DE102015209398A1 (de) * 2015-05-22 2016-11-24 Robert Bosch Gmbh Vorrichtung zur Messung der Einspritzrate, Verfahren zur Herstellung einer solchen Vorrichtung sowie Messverfahren
JP6497283B2 (ja) 2015-09-11 2019-04-10 株式会社デンソー データ解析装置
US10048228B2 (en) 2015-10-07 2018-08-14 Cummins Inc. Systems and methods for estimating fuel type and fuel properties using sonic speed
WO2018057087A2 (fr) * 2016-09-21 2018-03-29 Bai Yufeng Dispositif de test de douche/de douche de sécurité/d'extincteur d'incendie
EP3456953B1 (fr) * 2017-09-13 2021-07-14 Vitesco Technologies GmbH Appareil et procédé pour tester une buse d'injecteur de carburant
CN109083790B (zh) * 2018-09-28 2023-07-18 西安交通大学 一种基于Zeuch压磁法的喷油速率测量系统及方法
CN109386420B (zh) * 2018-10-15 2021-02-02 哈尔滨工程大学 多次喷射燃油喷射规律测量方法
KR20200144246A (ko) * 2019-06-18 2020-12-29 현대자동차주식회사 연료분사량 보정방법 및 시스템
CN111946519A (zh) * 2020-08-07 2020-11-17 哈尔滨工程大学 一种基于环鸣法声速修正的喷油规律测试装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118425A1 (de) * 1981-05-09 1982-12-09 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zum erfassen der den brennraeumen eines dieselmotors zugefuehrten kraftstoffmenge
US4856321A (en) * 1983-07-29 1989-08-15 Panametrics, Inc. Apparatus and methods for measuring fluid flow parameters
DE3916418A1 (de) * 1989-05-19 1990-11-22 Daimler Benz Ag Vorrichtung zur ermittlung des zeitlichen verlaufes der aus einer kraftstoffeinspritzduese einer luftverdichtenden einspritzbrennkraftmaschine austretenden kraftstoffmenge
US5753806A (en) * 1996-10-30 1998-05-19 Southwest Research Institute Apparatus and method for determining the distribution and flow rate characteristics of an injection nozzle
GB9930120D0 (en) * 1999-12-21 2000-02-09 Assembly Technology & Test Lim Monitoring equipment for monitoring the performance of an engine fuel injector valve
GB0009165D0 (en) * 2000-04-14 2000-05-31 Assembly Technology & Test Lim Monitoring equipment
DE10107032A1 (de) * 2001-02-15 2002-08-29 Bosch Gmbh Robert Verfahren, Computerprogramm und Vorrichtung zum Messen der Einspritzmenge von Einspritzdüsen, insbesondere für Kraftfahrzeuge
US7080550B1 (en) * 2003-08-13 2006-07-25 Cummins Inc. Rate tube measurement system
US7197918B2 (en) * 2003-08-14 2007-04-03 International Engine Intellectual Property Company, Llc Apparatus and method for evaluating fuel injectors

Also Published As

Publication number Publication date
US20060156801A1 (en) 2006-07-20
EP1561029B1 (fr) 2006-08-23
WO2004040129A1 (fr) 2004-05-13
JP4130823B2 (ja) 2008-08-06
DE10249754A1 (de) 2004-05-06
DE50304788D1 (de) 2006-10-05
US7171847B2 (en) 2007-02-06
ATE337484T1 (de) 2006-09-15
EP1561029A1 (fr) 2005-08-10
JP2006504038A (ja) 2006-02-02

Similar Documents

Publication Publication Date Title
EP1561029B2 (fr) Procede et dispositif pour mesurer le debit d'injection d'un injecteur de liquides
EP1064457B1 (fr) Procede pour determiner le temps d'injection dans un moteur a combustion interne a injection directe
EP1644707B1 (fr) Dispositif pour mesurer des ecoulements volumetriques a resolution temporelle
EP3298266B1 (fr) Dispositif de mesure du taux d'injection et procédé de mesure
EP1954938B2 (fr) Procede et dispositif de mesure de la quantite d'injection et du taux d'injection d'une soupape d'injection pour des liquides
EP1368620B1 (fr) Procede, programme informatique et dispositif pour mesurer le volume injecte par des systemes d'injection
DE10301264B4 (de) Verfahren und Vorrichtung zur Temperaturbestimmung des Kraftstoffs in einem Speicher-Einspritzsystem
DE102013224706A1 (de) Verfahren zur Berechnung des Einspritzratenverlaufs
DE2440493A1 (de) Piezoelektrischer messumformer fuer den innenueberdruck von elastisch verformten hohlkoerpern
DE102008040628A1 (de) Verfahren und Vorrichtung zur Messung der mit einem Einspritzventil eingespritzten Flüssigkeitsmenge
DE102015208416B3 (de) Ermittlungsverfahren zum Ermitteln eines absoluten Wertes einer eingespritzten Kraftstoffmasse
DE102006042098B3 (de) Verfahren zur Ermittlung einer Korrektur einer Teileinspritzmenge einer Brennkraftmaschine
DE102017201877A1 (de) Messanordnung und Verfahren zur Bestimmung des zeitlichen Massenstromverlaufs während einer von einem Kraftstoffinjektor durchgeführten Einspritzung in einen Messraum
DE3806129C2 (fr)
DE102020210984B4 (de) Verfahren und Vorrichtung zum Ermitteln einer Fluideinspritzmenge eines Einspritzsystems
DE3916418C2 (fr)
EP1944502B1 (fr) Dispositif de mesure et procédé de mesure pour un injecteur
DE60019365T2 (de) Vorrichtung zur Ermittlung des Kraftstoffeinspritzzeitpunkts für eine Dieselbrennkraftmaschine
EP2347117B1 (fr) Procédé de mesure des trajets d'écoulement dans des vannes
DE102015204684A1 (de) Verfahren zum Betreiben eines Kraftstoffinjektors
DE102004049002A1 (de) Verfahren zur Messung der Dichtheit eines Einspritzventils für Flüssigkeiten
DE3046768A1 (de) Messvorrichtung zur bestimmung des oeffnungsdruckes von kraftstoff-einspritzduesen
DE3622902C2 (fr)
DE102015203341A1 (de) Verfahren zum Betreiben einer Brennkraftmaschine
AT518663A4 (de) Vorrichtung zur Bestimmung der Einblasratenvarianz von Gasventilen, insbesondere für mit gasförmigen Kraftstoffen betreibbare Verbrennungskraftmaschinen

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: 20050525

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20060823

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50304788

Country of ref document: DE

Date of ref document: 20061005

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061123

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061123

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061204

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20061129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070125

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: IAV GMBH INGENIEURSGESELLSCHAFT AUTO UND VERKEHR

Effective date: 20070523

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

BERE Be: lapsed

Owner name: ROBERT BOSCH G.M.B.H.

Effective date: 20070630

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070630

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070630

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061124

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20060823

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070224

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20110706

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 50304788

Country of ref document: DE

Effective date: 20110706

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20120620

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20130620

Year of fee payment: 11

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 337484

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140604

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140604

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140604

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140604

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20210823

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20220621

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20220630

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50304788

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230103