EP1187987B1 - Dispositif permettant d'analyser instantanement le debit d'injection coup par coup fourni par un systeme d'injection utilise dans un moteur thermique - Google Patents
Dispositif permettant d'analyser instantanement le debit d'injection coup par coup fourni par un systeme d'injection utilise dans un moteur thermique Download PDFInfo
- Publication number
- EP1187987B1 EP1187987B1 EP00949547A EP00949547A EP1187987B1 EP 1187987 B1 EP1187987 B1 EP 1187987B1 EP 00949547 A EP00949547 A EP 00949547A EP 00949547 A EP00949547 A EP 00949547A EP 1187987 B1 EP1187987 B1 EP 1187987B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- measuring
- injection
- pressure
- fuel
- 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
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
Definitions
- Injection systems typically have one or several injection pumps to put fuel under a pressure that can currently range from 100 to 2500 bar, one or more fuel tanks under pressure, one or more injectors per engine cylinder to feed and a steering system, more and more often electronic, responsible for controlling the value of the masses or volumes of fuel injected according to environmental conditions engine, fuel characteristics and the requirements of the driving the engine.
- Measuring devices have been designed to enable manufacturers of injection systems and thermal engines, to focus the injectors as well as the settings and compliance checks during manufacture and during installation for the end use.
- Known measuring devices are used in conjunction with a specific test bed whose role is essentially to ensure the rotation of an injection pump and the fixing of the various elements of the injection system under test. These devices are not usable on a injection heat engine in nominal operation. The measures often do this by using a different fluid than the fuel for the injection which injection system is designed. This fluid is chosen to present hydraulic characteristics close to those of the fuel but with a higher flashpoint temperature to minimize the risks fire and explosion. So, after that, the term fuel will be also used to designate the fluid used to carry out measurements of debit.
- the measuring apparatus comprises a mechanical section as well than an electronic section.
- the mechanical section includes a system attachment for receiving one or more injectors, a measuring cell by injector for the elaboration of an electrical image of the quantity of injected fluid and a fluid evacuation system.
- the electronic section is usually in the form of a box equipped with different means of interface with the operator such a screen and keyboard as well as other external processing systems.
- the electronics section processes an electrical signal provided by the section mechanical control and pilot various elements of servitude concourrant to the measurement process.
- the basic technique used for the realization of these devices is based on measuring the displacement of a sliding piston in a folder, the assembly delimiting a deformable measuring volume in which the injected fuel is directed. Any quantity of fuel added in this volume causes a displacement of the piston which can be easily converted into an electrical signal by the use of one of the many sensor types available for this purpose. This is a measure volume.
- the conversion to mass measurement is done by calculation using the value of the fuel density. To guarantee an accurate calculation, the Fuel temperature is measured in the measurement volume.
- German patent application DE 4 130 394 describes a device measuring a quantity of fuel, injected by an injector used in a thermal engine, implementing a first chamber for the measurement of pressure and injection temperature, a second chamber for the measurement of the injected fuel volume, and a fast solenoid valve piloted for partially empty the first chamber after an injection up to find the pressure prevailing in it before the injection.
- This device makes it possible to know both the precise quantity of fuel injected and the flow of fluid as a function of time, provided to obtain, in the first measuring chamber, a final pressure, after the emptying, strictly equal to the nominal initial pressure, which is difficult, less at the desired level of accuracy.
- the device then provides results imprecise measurement when the emptying of the first chamber is imperfectly achieved.
- the present invention aims to avoid this disadvantage by providing a precise measuring device capable of taking into account variations relatively important to this parameter.
- the inventive idea is to provide the electronic section with a electronic device for reciprocal compensation of measurements, compensation allowed by simultaneous processing of the measurements obtained in each room for each individual injection.
- the device compensation makes it possible to take into account a possible imperfection of the phase of emptying the first chamber of measurement and provide results of accurate measurement even though the final pressure in the first chamber after the emptying is not strictly equal to the initial nominal pressure before injection.
- an injection is performed. This causes a pressure increase in the first measuring chamber, related to the amount of fluid injected, the characteristics of the fluid, the conditions environment, including temperature, initial pressure and volume from the room.
- the fluid that has been injected is drained to the second measuring chamber.
- the pressure in the first chamber of measure is thus reduced to its initial value and this first chamber is ready to receive a second injection.
- the fluid that arrives in the second measuring chamber actually increases the volume of this chamber by pushing the piston. This displacement is measured and, knowing the diameter of the piston, a part of the electronic section calculates the exact volume of fluid. This measurement allows the electronic section to calibrate, at any time, very exactly, the measurements that are made by the first measurement chamber.
- the first measuring chamber thus makes it possible to provide with precision of the "shape" of the injection, while the second is used to measure the amount of fuel injected.
- the treatment performed by the electronic section allows to compensate the defects of each of the measures by the qualities of the other.
- the mechanical design of the device is more robust than the devices of the existing prior art. It is not necessary in particular to use pressure balancing device in the second chamber of measured. Counter pressure is directly provided by the injection pressure in the first cell playing on his drain. The piston can then be simply recalled by a spring. Constraints in the second chamber the measurement range is significantly lower than in a chamber of the same type of the prior art, this room withstands much better and wears much less quickly.
- a rapid drain solenoid valve is advantageously provided downstream of the second measuring chamber, as well as a discharger intended to maintain the pressure in the second measuring chamber to a set value.
- the piston can be prestressed by example by a spring towards the second measuring chamber.
- the piston moves in a smooth-walled cylinder and has an annular groove open towards the cylinder wall.
- This groove makes it possible to trap possible leaks of gas or of fluid by preventing these leaks from disturbing the measurement. She permits also to lighten the piston. It also allows to limit the surface of the piston which must be lapped and paired. Finally, it increases the flexibility of the piston, which makes it less difficult to slip it into the cylinder.
- the displacement sensor of the piston used is for example a inductive sensor, but any other type of sensor can be used here.
- Such sensor is more accurate, linear and does not add moving mass to the mass of the piston.
- its cost is higher and its implementation more delicate.
- the measuring device can advantageously have a cooling system to cool the injector, the first measuring chamber, piston and piston displacement sensor. So, the temperature in the measuring device is standardized and its variations are limited, which makes it possible to increase the precision of the measurements made. It is then advantageous to use in the cooling system the same fluid than the one used to perform the injections.
- the measuring method also consists of correct the measures for each injection from calibration including pre-recorded.
- the measuring process may also consist, during the emptying of the second chamber, to carry out this emptying until there is a pressure of setpoint.
- the single figure shows very schematically the part the mechanics of a fuel quantity measuring device injected by a injector according to the invention.
- the single figure represents an injector 2 mounted on a support injector 4.
- This injector 2 has an injection nozzle 6 which is located in a first measuring chamber 8.
- This measuring chamber is a chamber of constant volume. It is filled with a fluid that presents hydraulic characteristics close to those of a fuel but with a much higher flashpoint temperature than a fuel in order to minimize the risk of fire and explosion.
- This fluid is also the fluid that is used in the injector 2.
- a reservoir 10 of this fluid is provided in the device shown in the drawing.
- the first measurement chamber 8 has several inputs and several outputs. It firstly presents a filling inlet 12, a purge outlet 14, a rapid drain outlet 16, and an outlet 18 to a second measuring chamber 20.
- a fast filling solenoid valve 26 is mounted between the pump 22 and the filling inlet 12 to control the filling of the first measuring chamber 8.
- a solenoid valve 28 is also provided at the level of the purge outlet 14.
- a rapid drain solenoid valve 30 is provided for the emptying of the chamber 8. We can notice here that the rapid drain outlet 16 is advantageously placed at a point bottom of the first measuring chamber 8, while the purge outlet 14 is placed at a high point of this room 8.
- a drain solenoid valve 32 and a pressure relief valve 34 are arranged between the first measuring chamber 8 and the second chamber 20.
- the second measurement chamber 20 has a variable volume. It is made in a cylinder 36 in which a piston 38 moves.
- piston 38 has a bottom 40 and a skirt 42.
- the bottom 42 is curved and forms a wall closing the measuring chamber 20.
- a spring 44 bears on the bottom 40, on the side opposite to the measuring chamber 20.
- the displacement of the measuring piston 38 is provided by a displacement sensor 46, engaged by a contact tip 48 with the face of the bottom 40 opposite to the measuring chamber 20.
- This sensor of displacement 46 is for example an inductive sensor.
- the second measurement chamber 20 also comprises a drain channel 50 whose opening and closing are controlled by a drain solenoid valve 52 associated with an overflow valve 54.
- the fluid drained back into the tank 10.
- the cylinder wall 36 along which moves the piston 38 is a smooth wall. This cylinder can be or not jacketed.
- the skirt 42 has on its outer face a throat annular 56. This groove extends over substantially half of the height of the piston 38 and is centered with respect to the height thereof. We realize thus two annular guide surfaces 58.
- This mechanical device described above is associated with a electronic device not shown here and which receives information from two temperature sensors 60, each chamber being equipped with a temperature sensor 60 fast response as well as a sensor of pressure 62 located at the first measuring chamber 8.
- a cooling system is also provided in the measuring device.
- the coolant is the same as the one that is injected at the level of the injector 2. Downstream of the pump 22, there is a heat exchanger 64. The same tank 10 is therefore used for the fluid injected and for the coolant.
- This coolant is sent to the injector support 4 and then around the first measuring chamber 8, at the displacement sensor 46 and at the piston 38.
- An annular chamber 66 surrounds the sensor of displacement 46 and comprises a fluid supply channel of cooling and a channel for the return of this fluid to the reservoir 10.
- a groove 68 is provided in the injector support 4 to allow the circulation around it of the coolant.
- This throat 36 is supplied with coolant by a pipe and the liquid of cooling, after leaving the throat 36, goes into a room ring 70 located around the first measuring chamber 8 before return to the tank 10.
- the first measuring chamber is first filled with fluid pumped into the tank 10 using the pump 22 and opening the solenoid valve 26. Once the chamber is filled, it is purged using solenoid valve 28 to ensure that no air bubbles or other gases, is inside of it. To fill the second chamber of measurement, it is possible, during this filling, to open the solenoid valve 32 towards the second measuring chamber 20.
- the discharge valve 34 makes it possible to maintain this residual setpoint pressure in the first measuring chamber 8.
- the fluid coming out of the first measuring chamber 8 is sent into the second measuring chamber 20.
- the volume of this second measuring chamber 20 therefore increases, which causes movement of the piston 38.
- the displacement sensor 46 measure this displacement of the piston 38, and knowing thanks to the sensor temperature 60 the temperature of the fluid in the chamber 20, it is possible to determine the amount of fluid that has been introduced in the second measuring chamber 20.
- the main data is the pressure initial in the first chamber of measurement, the final pressure in this chamber, and the pressure difference during the injection, as well as the movement of the piston 38.
- a treatment method known as "crossed matrices”
- These results are obtained already before a second injection. Indeed, during of the first injection the fluid is injected into the first chamber of measured. Then the fluid is transferred to the second measuring chamber 20. A second injection can then take place in the first chamber of 8. The results are obtained as soon as the transfer of the first measuring chamber 8, towards the second measuring chamber 20 is completed, just before the second injection.
- the second measuring chamber is drained thanks to the solenoid valve 52.
- the second discharger 54 makes it possible to maintain in the second measuring chamber 20 a second set pressure.
- the relationship between the increase in pressure and the injected volume is not linear. It depends in particular on the characteristics of the fluid, the temperature and the pressure. This pressure varies during injection, and this phenomenon is used for measurement.
- the calibration is performed by injecting small volumes, but not too small to maintain accuracy on the measurement, 10 mm 3 for example for a measurement scale of 200 mm 3 .
- Several injections are made successively by starting the injection at different pressures, chosen to cover the entire range of pressures encountered during the nominal operation. Each injection is measured precisely by the second chamber 20. A series of points of correspondence between a starting pressure in the chamber, a small pressure variation due to the injection and the injected volume is obtained at the nominal temperature of the measurements with the actual test fluid, in its current state.
- the calculation unit periodically stores a table of values for linearizing and correcting in real time the subsequent measurements.
- the advantage of this procedure is that it does not use any external device.
- the exploration of the different starting pressures is simply done by adding a few injections without opening the transfer solenoid valve to the second chamber which has the effect of gradually increasing the pressure in the first chamber 8 to the vicinity of each desired value to memorize a linearization curve.
- This calibration method is indicated by way of example and other methods are possible here.
- This measuring device makes it possible to obtain precisely the quantity of fluid injected by the injector and also provided with precision the flow curve as a function of time.
- An electronic compensation device is provided to hold account of a possible imperfection of the emptying phase of the first measuring chamber 8 and provide accurate measurement results even though the final pressure in this room, after emptying, is not strictly equal to the nominal initial pressure.
- the system is able to hold relatively large variations in this parameter.
- This compensation function is important because, among other factors, response time to closing and opening the solenoid valve are not absolutely stable or predictable, even if their average value is taken into account by the system in the piloting sequence of this valve.
- Displacement of the piston measured by the displacement sensor 46 allows, knowing the exact diameter of the piston, to calculate the injected volume. This measure allows the section to calibrate, at any moment, exactly the measures are made by the first cell.
- the groove 56 made in the piston brings several advantages. It allows first of all to trap possible leaks of gas or fluid avoiding that they do not come disrupt the measurement. It also makes it possible to lighten the piston and therefore to limit the undesirable effects due to its mechanical inertia. It finally allows to reduce the surface of the piston which must be perfectly lapped and paired with the inner surface of the cylinder by limiting this guide surface to two crowns located at the ends of the piston.
- the piston particularly level of its skirt, has a greater flexibility than pistons used in the devices of the prior art thanks to the thinning of the skirt. All this is achieved without making it more difficult to achieve the piston and by allowing more, to reduce the constraints that hinder the sliding of the piston 38 in the cylinder 36.
- the processing carried out by the electronic section brings together the information obtained at the two measuring chambers and allows to compensate for the defects of each by the qualities of the other.
- the results provided to the operator or the external treatment systems of connected data are completely preprocessed by the section and integrate all the compensations.
- this measuring device is much more robust than in the systems of the prior art.
- it is no longer necessary to use the balancing device of pressure in the first measuring chamber.
- This back pressure is provided directly by the injection pressure in this chamber in playing on his drain.
- the second piston measuring chamber no longer need to be particularly "fast” since it is filled by the solenoid valve for emptying the first measuring chamber, of which control the operation. She no longer needs to work with a back pressure and a simple spring is therefore sufficient to ensure its return.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Volume Flow (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
- une première chambre de mesure dans laquelle est injecté le carburant, un capteur de pression et un capteur de température mesurant respectivement la pression et la température régnant dans la première chambre de mesure,
- en aval de la première chambre de mesure, une seconde chambre de mesure qui est reliée à la première chambre par une conduite de vidange, et dont le volume est variable selon le mouvement d'un piston dont le déplacement est mesuré à l'aide d'un capteur de déplacement,
- une section électronique pilotant le système et analysant des informations reçues des capteurs,
- une électrovanne rapide pilotée par une partie de la section électronique et un déverseur qui sont disposés entre les deux chambres de mesure pour vidanger partiellement la première chambre de mesure après une injection jusqu'à retrouver dans la première chambre de mesure sensiblement la pression régnant dans celle-ci avant cette injection,
- à mesurer la pression et la température dans la première chambre avant l'injection,
- à injecter au moyen de l'injecteur du carburant dans la première chambre,
- pendant l'injection mesurer, régulièrement au moins, la pression et la température dans la première chambre,
- en fin d'injection, vidanger dans la deuxième chambre une partie du carburant contenu dans la première chambre jusqu'à rétablir dans la première chambre sensiblement la pression d'avant l'injection,
- mesurer le volume du carburant vidangé et en déduire le volume de l'injection,
- vidanger le carburant contenu dans la deuxième chambre,
Claims (10)
- Dispositif de mesure d'une quantité de carburant injectée par un injecteur (2) utilisé dans un moteur thermique comportant :une première chambre de mesure (8) dans laquelle est injecté le carburant, un capteur de pression (62) et un capteur de température (60) mesurant respectivement la pression et la température régnant dans la première chambre de mesure (8),en aval de la première chambre de mesure (8), une seconde chambre de mesure (20) qui est reliée à la première chambre (8) par une conduite de vidange (18), et dont le volume est variable selon le mouvement d'un piston (38) dont le déplacement est mesuré à l'aide d'un capteur de déplacement (46),une section électronique pilotant le système et analysant des informations reçues des capteurs (46, 60, 62),une électrovanne rapide (32) pilotée par une partie de la section électronique et un déverseur (34) qui sont disposés entre les deux chambres de mesure (8, 20) pour vidanger partiellement la première chambre de mesure (8) après une injection jusqu'à retrouver dans la première chambre de mesure (8) sensiblement la pression régnant dans celle-ci avant cette injection.
- Dispositif de mesure selon la revendication 1, caractérisé en ce qu'il comporte une électrovanne de vidange rapide (52) en aval de la seconde chambre de mesure (20).
- Dispositif de mesure selon la revendication 1 ou 2, caractérisé en ce qu'il comporte un déverseur (54) destiné à maintenir la pression dans la deuxième chambre de mesure (20) à une valeur de consigne.
- Dispositif de mesure selon l'une des revendications 1 à 3, caractérisé en ce que le piston (38) est précontraint par un ressort (44) vers la seconde chambre de mesure (20).
- Dispositif de mesure selon l'une des revendications 1 à 4, caractérisé en ce que le piston (38) se déplace dans un cylindre (36) à paroi lisse et en ce qu'il comporte une gorge annulaire (56) ouverte vers la paroi du cylindre (36).
- Dispositif de mesure selon l'une des revendications 1 à 5, caractérisé en ce qu'il comporte un système de refroidissement pour refroidir l'injecteur (2), la première chambre de mesure (8), le piston (38) et le capteur de déplacement (46) du piston.
- Dispositif de mesure selon la revendication 6, caractérisé en ce que le fluide utilisé dans le système de refroidissement est le même que celui qui est utilisé pour réaliser les injections.
- Procédé de mesure des caractéristiques d'une injection de carburant effectuée par un injecteur (2) du type consistant à mettre en oeuvre une première chambre (8) pour la mesure de la pression et de la température d'injection et une deuxième chambre à volume variable (20) pour la mesure du volume de carburant injecté, et pour chaque injection :à mesurer la pression et la température dans la première chambre (8) avant l'injection,à injecter au moyen de l'injecteur (2) du carburant dans la première chambre (8),pendant l'injection mesurer, régulièrement au moins, la pression et la température dans la première chambre (8),en fin d'injection, vidanger dans la deuxième chambre (20) une partie du carburant contenu dans la première chambre (8) jusqu'à rétablir dans la première chambre (8) sensiblement la pression d'avant l'injection,mesurer le volume du carburant vidangé et en déduire le volume de l'injection,vidanger le carburant contenu dans la deuxième chambre (20),
- Procédé de mesure selon la revendication 8, caractérisé en ce qu'il consiste à corriger les mesures relatives à chaque injection à partir de données de calibration notamment préenregistrées.
- Procédé de mesure selon la revendication 8 ou 9, caractérisé en ce qu'il consiste, lors de la vidange de la deuxième chambre (20), à effectuer cette vidange jusqu'à y établir une pression de consigne.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9907982 | 1999-06-18 | ||
FR9907982A FR2795139B1 (fr) | 1999-06-18 | 1999-06-18 | Dispositif permettant d'analyser instantanement le debit d'injection coup par coup fourni par un systeme d'injection utilise dans un moteur thermique |
PCT/FR2000/001660 WO2000079125A1 (fr) | 1999-06-18 | 2000-06-15 | Dispositif permettant d'analyser instantanement le debit d'injection coup par coup fourni par un systeme d'injection utilise dans un moteur thermique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1187987A1 EP1187987A1 (fr) | 2002-03-20 |
EP1187987B1 true EP1187987B1 (fr) | 2005-03-23 |
Family
ID=9547180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00949547A Expired - Lifetime EP1187987B1 (fr) | 1999-06-18 | 2000-06-15 | Dispositif permettant d'analyser instantanement le debit d'injection coup par coup fourni par un systeme d'injection utilise dans un moteur thermique |
Country Status (8)
Country | Link |
---|---|
US (1) | US6755076B1 (fr) |
EP (1) | EP1187987B1 (fr) |
JP (1) | JP2003502578A (fr) |
AT (1) | ATE291694T1 (fr) |
DE (1) | DE60018928T2 (fr) |
ES (1) | ES2237440T3 (fr) |
FR (1) | FR2795139B1 (fr) |
WO (1) | WO2000079125A1 (fr) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10100459A1 (de) * | 2001-01-08 | 2002-08-01 | Bosch Gmbh Robert | Vorrichtung und Verfahren zum Messen der Einspritzmenge von Einspritzsystemen, insbesondere für Brennkraftmaschinen von Kraftfahrzeugen |
DE10107032A1 (de) * | 2001-02-15 | 2002-08-29 | Bosch Gmbh Robert | Verfahren, Computerprogramm und Vorrichtung zum Messen der Einspritzmenge von Einspritzdüsen, insbesondere für Kraftfahrzeuge |
DE10331228B3 (de) | 2003-07-10 | 2005-01-27 | Pierburg Instruments Gmbh | Vorrichtung zur Messung von zeitlich aufgelösten volumetrischen Durchflußvorgängen |
US7197918B2 (en) * | 2003-08-14 | 2007-04-03 | International Engine Intellectual Property Company, Llc | Apparatus and method for evaluating fuel injectors |
CN100376884C (zh) * | 2005-04-08 | 2008-03-26 | 天津大学 | 可模拟高压共轨、增压中冷和废气再循环的全气缸取样系统 |
ATE482379T1 (de) * | 2005-07-20 | 2010-10-15 | Aea Srl | Messgerät zur messung der von einem injektor eingepritzten fluidmenge |
JP4821994B2 (ja) * | 2006-08-28 | 2011-11-24 | いすゞ自動車株式会社 | ガスインジェクタの特性測定試験装置および特性測定試験方法 |
FR2935757B1 (fr) | 2008-09-05 | 2010-09-24 | Efs Sa | Procede permettant d'analyser le debit d'injection coup par coup fourni par un systeme d'injection de carburant utilise dans un moteur thermique de forte puissance |
FR2935758B1 (fr) * | 2008-09-05 | 2010-09-24 | Efs Sa | Dispositif permettant d'analyser le debit d'injection coup par coup fourni par un systeme d'injection de carburant utilise dans un moteur thermique de forte puissance |
IT1392001B1 (it) * | 2008-11-27 | 2012-02-09 | Aea Srl | Metodo per misurare la portata istantanea di un iniettore per combustibili gassosi |
DE102009058932B4 (de) * | 2009-12-17 | 2013-08-14 | Avl List Gmbh | System und Verfahren zur Messung von Einspritzvorgängen |
JP5418259B2 (ja) * | 2010-02-02 | 2014-02-19 | 株式会社デンソー | 噴射量計測装置 |
RU2449164C2 (ru) * | 2010-05-19 | 2012-04-27 | Государственное образовательное учреждение высшего профессионального образования Московский автомобильно-дорожный государственный технический университет (МАДИ) | Устройство для регистрации характеристики впрыскивания топлива форсункой дизеля |
DE102010031486A1 (de) * | 2010-07-16 | 2012-01-19 | Robert Bosch Gmbh | Prüfstand für Fluidpumpen und Fluidinjektoren |
EP2455604B1 (fr) * | 2010-11-22 | 2015-07-22 | Continental Automotive GmbH | Appareil de mesure et procédé permettant de déterminer une fuite dans une soupape d'injection |
JP5429266B2 (ja) * | 2011-11-25 | 2014-02-26 | 株式会社デンソー | 流体ポンプの検査装置および検査方法 |
JP5920084B2 (ja) * | 2012-07-20 | 2016-05-18 | 株式会社デンソー | 噴射量計測装置 |
FR2995640B1 (fr) | 2012-09-19 | 2015-03-20 | Efs Sa | Dispositif de mesure d’une quantite de fluide injectee par un injecteur |
ITUB20154960A1 (it) * | 2015-11-06 | 2017-05-06 | Giacomo Buitoni | Metodo e dispositivo per la misura dell?andamento temporale della portata (injection rate) di un qualsivoglia dispositivo comandato per il controllo di un efflusso di fluido |
DE102015225736A1 (de) * | 2015-12-17 | 2017-06-22 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Bestimmung der Einspritzrate eines Einspritzventils |
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 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3577967A (en) * | 1968-07-13 | 1971-05-11 | Bosch Gmbh Robert | Control device for fuel injection pumps |
DE2054911A1 (de) * | 1970-11-07 | 1972-05-10 | Robert Bosch Gmbh, 7000 Stuttgart | Regelorgan für eine Kraftstoffeinspritzanlage |
US4040405A (en) * | 1975-06-10 | 1977-08-09 | Nippon Soken, Inc. | Fuel injection system for internal combustion engine |
JPS5853669A (ja) * | 1981-09-28 | 1983-03-30 | Hitachi Ltd | 内燃機関用燃料噴射ポンプ装置 |
JPS6065271A (ja) * | 1983-09-19 | 1985-04-15 | Nippon Soken Inc | 内燃機関の燃料噴射装置 |
JPS614860A (ja) * | 1984-06-16 | 1986-01-10 | Mitsubishi Heavy Ind Ltd | 噴射率計 |
JP2806019B2 (ja) * | 1990-09-13 | 1998-09-30 | 株式会社デンソー | 噴射量計測装置 |
US6135100A (en) * | 1994-05-06 | 2000-10-24 | Sanshin Kogyo Kabushiki Kaisha | Sensor arrangement for engine control system |
DE4434597B4 (de) * | 1994-09-28 | 2006-09-21 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Messung kleiner Kraftstoffeinspritzmengen |
JPH08270478A (ja) * | 1995-03-31 | 1996-10-15 | Yamaha Motor Co Ltd | 酸素濃度センサを用いた内燃機関の制御方法及び装置及びその内燃機関 |
DE19758660B4 (de) * | 1997-01-08 | 2004-01-22 | Sonplas Gmbh | Verfahren zur Einstellung des Brennstoffdurchflusses von Bauteilöffnungen für Einspritzventile |
-
1999
- 1999-06-18 FR FR9907982A patent/FR2795139B1/fr not_active Expired - Fee Related
-
2000
- 2000-06-15 DE DE60018928T patent/DE60018928T2/de not_active Expired - Lifetime
- 2000-06-15 AT AT00949547T patent/ATE291694T1/de not_active IP Right Cessation
- 2000-06-15 EP EP00949547A patent/EP1187987B1/fr not_active Expired - Lifetime
- 2000-06-15 US US09/980,393 patent/US6755076B1/en not_active Expired - Lifetime
- 2000-06-15 ES ES00949547T patent/ES2237440T3/es not_active Expired - Lifetime
- 2000-06-15 JP JP2001505451A patent/JP2003502578A/ja active Pending
- 2000-06-15 WO PCT/FR2000/001660 patent/WO2000079125A1/fr active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE60018928T2 (de) | 2006-04-27 |
WO2000079125A1 (fr) | 2000-12-28 |
ES2237440T3 (es) | 2005-08-01 |
DE60018928D1 (de) | 2005-04-28 |
JP2003502578A (ja) | 2003-01-21 |
EP1187987A1 (fr) | 2002-03-20 |
FR2795139A1 (fr) | 2000-12-22 |
US6755076B1 (en) | 2004-06-29 |
FR2795139B1 (fr) | 2001-07-20 |
ATE291694T1 (de) | 2005-04-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1187987B1 (fr) | Dispositif permettant d'analyser instantanement le debit d'injection coup par coup fourni par un systeme d'injection utilise dans un moteur thermique | |
EP1705355B1 (fr) | Procédé de détermination des paramètres de fonctionnement d'un dispositif d'injection | |
FR2878292A1 (fr) | Dispositif et procede de determination des variations de pression d'un systeme d'alimentation en carburant | |
FR2826064A1 (fr) | Systeme d'alimentation en carburant pour carburant de remplacement | |
FR2895512A1 (fr) | Procede et dispositif de mesure automatique de la consommation en huile d'un moteur a combustion interne et de vidange dudit moteur | |
FR2762647A1 (fr) | Procede pour determiner la duree d'injection dans un moteur a combustion interne a injection directe | |
FR2734213A1 (fr) | Procede de diagnostic de l'etancheite d'un systeme de ventilation de reservoir | |
FR2936593A1 (fr) | Generateur d'air chaud | |
EP2318689B1 (fr) | Procede permettant d'analyser le debit d'injection coup par coup fourni par un systeme d'injection de carburant utilise dans un moteur thermique de forte puissance | |
FR2935758A1 (fr) | Dispositif permettant d'analyser le debit d'injection coup par coup fourni par un systeme d'injection de carburant utilise dans un moteur thermique de forte puissance | |
FR2725021A1 (fr) | Procede et dispositif de mesure de petites quantites de carburant injecte notamment dans un moteur a combustion interne a allumage non commande | |
WO2011154528A1 (fr) | Procédé et dispositif de démarrage ou d'arrêt d'un moteur à turbine à gaz | |
FR2790515A1 (fr) | Procede et dispositif de mise en oeuvre en fonctionnement transitoire d'un moteur a combustion interne, notamment d'un vehicule automobile | |
FR2492003A1 (fr) | Dispositif de pompage pour injection de carburant | |
FR2901848A1 (fr) | Procede et dispositif de correction du debit de l'injection de carburant dit pilote dans un moteur diesel a injection directe du type a rampe commune, et moteur comprenant un tel dispositif | |
EP1159522B1 (fr) | Procede de determination de la pression regnant dans la rampe d'injection du carburant d'un moteur a combustion interne et dispositif correspondant | |
FR3027999A1 (fr) | Station d'approvisionnement en hydrogene gazeux et procede associe permettant de determiner avec une precision donnee le debit massique d'hydrogene gazeux | |
WO2021165096A1 (fr) | Procédé de mesure d'un débit de liquide à la sortie d'une pompe | |
FR2948410A3 (fr) | Dispositif de regeneration d'un filtre a particules pour un banc d'essai d'un moteur a combustion interne et banc moteur comportant un tel dispositif | |
FR2617908A1 (fr) | Systeme d'injection de carburant pour moteurs a combustion interne | |
FR2795173A1 (fr) | Dispositif a piston permettant de mesurer de petites quantites de carburant injecte par un injecteur | |
FR2844307A1 (fr) | Procede et dispositif pour determiner la masse de carburant d'un film de paroi lors de l'injection dans la conduite d'aspiration d'un moteur a combustion interne | |
FR2960914A1 (fr) | Procede et dispositif de regulation du debit de carburant a injecter dans une chambre de combustion de turbomachine | |
FR2722247A1 (fr) | Procede de commande d'un moteur a combustion interne a recyclage de gaz de purge de l'event du reservoir | |
EP2044312A2 (fr) | Procede de reduction des emissions d'hydrocarbures d'un moteur froid a injection indirecte d'essence |
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: 20011130 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
17Q | First examination report despatched |
Effective date: 20040305 |
|
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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20050323 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: 20050323 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: 20050323 Ref country code: AT 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: 20050323 |
|
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: FRENCH |
|
REF | Corresponds to: |
Ref document number: 60018928 Country of ref document: DE Date of ref document: 20050428 Kind code of ref document: P |
|
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: 20050615 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20050531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20050623 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: 20050623 |
|
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: 20050630 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050630 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2237440 Country of ref document: ES Kind code of ref document: T3 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
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: 20050907 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20051227 |
|
BERE | Be: lapsed |
Owner name: EFS SA Effective date: 20050630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20050623 |
|
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: GB Payment date: 20150630 Year of fee payment: 16 Ref country code: CH Payment date: 20150630 Year of fee payment: 16 Ref country code: LU Payment date: 20150630 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: 20150716 Year of fee payment: 16 Ref country code: ES Payment date: 20150730 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20150630 Year of fee payment: 16 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20150630 Year of fee payment: 16 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 60018928 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20160615 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20170228 |
|
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: 20170103 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160630 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160630 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160615 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20160615 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20180507 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20160616 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20160615 |