CN104641103A - Device for measuring an amount of fluid injected by an injector - Google Patents
Device for measuring an amount of fluid injected by an injector Download PDFInfo
- Publication number
- CN104641103A CN104641103A CN201380048795.7A CN201380048795A CN104641103A CN 104641103 A CN104641103 A CN 104641103A CN 201380048795 A CN201380048795 A CN 201380048795A CN 104641103 A CN104641103 A CN 104641103A
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- CN
- China
- Prior art keywords
- measuring chamber
- equipment
- focus
- measuring
- fluid
- 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.)
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention relates to a device (1) for measuring an amount of fluid injected by an injector, which comprises: a measurement chamber (2), into which the fluid is injected; a device (3) for injecting the fluid into said measurement chamber (2); and at least one pressure sensor (4) placed in said measurement chamber (2) and suitable for measuring the pressure in said measurement chamber (2). Said device is characterized in that the measurement chamber (2) has a generally ellipsoidal shape, particularly a rotationally ellipsoidal shape, having first and second focal points (F1, F2). Said casing is also characterized in that the injection device (3) comprises an injection opening (32) provided on the first focal point (F1) of said measurement chamber (2) and in that the pressure sensor (4) is provided on the second focal point (F2) of said measurement chamber (2). The present invention is useful in the field of fuel injection systems for heat engines.
Description
Technical field
The present invention relates to a kind of equipment for measuring the Fluid Volume that sparger sprays.
The present invention specifically relates to a kind of for measuring by sparger interrupted injection or the equipment at scrappy suprabasil Fluid Volume.
Background technique
This measuring equipment is applied to the fuel injection system used in heat engine especially, to measure the form of the equipment of amount of fuel injected.But the present invention is never confined to the application in this heat engine, the field application of Fluid Volume (liquid or gaseous form) also can be measured at other.
In fuel injection system field, this is known, special in file FR2795139A1, use measuring equipment, this measuring equipment comprises the measuring chamber that injection fluid enters its inside, for Fluid injection being entered the equipment of measuring chamber, pressure transducer and the temperature transducer be arranged in measuring chamber, be applicable to measure main pressure and temperature in measuring chamber respectively.
In other words, usually use the measuring chamber closed, fluid injected enter wherein, measure change and the temperature as a supplement of at least pressure wherein.
But, the difficulty that claimant has observed pressure measure of the change is due to the fact that, measuring chamber is the encirclement (siege) of pressure wave, when attempting to measure this interrupted injection and entering measuring chamber or the small amount of fluid in scrappy substrate (in the form of a pulse), due to the situation in fuel injection system, limit validity.In other words, these very of short duration tonometric subject matters are that pressure wave is reflected in measuring chamber and makes to measure very difficult and be wrong.
Summary of the invention
The object of the invention is to the validity being improved measuring pressure change in measuring chamber by decay destructive pressure ripple.
For this reason, the present invention proposes a kind of equipment for measuring the Fluid Volume sprayed by sparger, this equipment comprises measuring chamber (Fluid injection enters wherein), for Fluid injection being entered the equipment of described measuring chamber, with at least one pressure transducer be arranged in described measuring chamber, described pressure transducer is applicable to measure the pressure existed in described measuring chamber, the feature of described equipment is, measuring chamber has common ellipsoidal shape, particularly rotation ellipsoid shape, described ellipsoid has the first focus and the second focus, it is characterized in that, spraying equipment comprises the spray-hole be arranged in described measuring chamber first focus, and pressure transducer is arranged in the second focus of described measuring chamber.
For the ellipsoid with two focuses, after the single reflection of described ellipsoid envelope, the path length between two focuses is constant, no matter the position of pip on envelope.
Therefore, inner at ellipsoid (therefore aspherical) measuring chamber with two focuses, the pressure wave trajectory between starting point (being positioned at the spray-hole of the first focus) and measuring point (being positioned at the pressure transducer of the second focus) all has identical length after the first reflection on measuring chamber inwall.Therefore, fluid is injected into ellipsoidal first focus, and pressure measurement is implemented in the second focus.Like this, pressure wave is by the propagated according to same length between its source (being positioned at the spray-hole of the first focus) and its terminal (being positioned at the pressure transducer of the second focus), and therefore on measuring chamber inwall first reflection after there is identical delay, therefore, limit the adverse effect of pressure wave and improve accuracy of measurement.
According to a feature, equipment comprises the temperature transducer being arranged in measuring chamber further, and described temperature transducer is suitable for measuring the temperature existed in described measuring chamber, and this temperature transducer is also positioned at described measuring chamber second focus place, closes on pressure transducer.
By this way, owing to being positioned at the temperature transducer in the second focus, thermometric validity also increases.
According to another feature, equipment comprises the emptying equipment of measuring chamber further, and emptying equipment has the drain hole being also positioned at described measuring chamber second focus place, closing on pressure transducer.
By this way, the emptying measurement at pressure wave of fluid and exit point are directly implemented, and are improved the validity of measurement by the generation limiting destruction wave.
Focus is formed certainly accurately locates accurately, and is well understood that, spray-hole, pressure transducer, temperature transducer and/or drain hole mean in location, associated focal place and be even close to focus place accurately at focus place.
In a specific embodiment, equipment comprises the first and second hollow support sealingly extending through measuring chamber further, and described hollow support has the free end of locating respectively at the first and second focus places of described measuring chamber and also supports spray-hole and pressure transducer respectively.
This supporting element allow to keep pressure transducer and spray-hole in place in focus respectively, the injection catheter of spraying equipment extends in the first supporting element inside at least in part, and it is inner that pressure sensor connecting piece (for controlling and/or the electrical connection of supply system) is positioned at the second supporting element at least in part.
Advantageously, second supporting element is also in its free end support temperature sensor and/or drain hole, therefore allow to take the second supporting element pressure sensors and temperature transducer and/or drain hole in the second focus, the second supporting element allows to be contained in temperature transducer link wherein (for controlling and/or the electrical connection of supply system) and/or emptying conduit.
In a specific embodiment, equipment comprises the gasket seal be inserted between supporting element and measuring chamber, preferably the gasket seal of fluid shim form.
Be located across these gasket seals of the path of the supporting element of measuring chamber, be advantageously made into the inside avoiding the vibration coming from outside being sent to measuring chamber.
The use of fluid pad is particularly conducive to the vibration reducing supporting element and may transmit, and particularly part supports the first supporting element of spraying equipment, and when fuel injector, spraying equipment is real surge generator; This vibration for pressure transducer pressure measurement be destruction source, therefore for accuracy of measurement be also.But this fluid pad allows all mechanical rigid contacts eliminated between supporting element and measuring chamber.
According to of the present invention one may, equipment comprises further and is placed on the inner and screen (é cran) be inserted between two focuses of measuring chamber, and described screen is positioned at and two focuses is connected directly between in dummy line together.
By this way, this screen allows the pressure wave of directly flowing between elimination two focuses, only to have precedence over the ripple of at least the first reflection implemented on measuring chamber inwall.
Preferably, this screen is made up of pressure wave absorbent material, or is coated with the coating made with this material, to contribute to these direct pressure ripples of rapid decay.
Advantageously, this screen is suspended between two focuses by one or more chain link be fixed on measuring chamber and screen.
According to another possibility of the present invention, equipment comprises external enclosure further, between external enclosure and measuring chamber, not there is direct contact, measuring chamber is suspended on capsule inside by one or more chain link be fixed on measuring chamber and external enclosure, and this one or more chain link is flexibility, elasticity or damping chain link preferably.
At external enclosure hangs inside measuring chamber, there is multiple advantage: therefore this measuring chamber is separated with external action, particularly be separated with shock and vibration, and the design of measuring chamber is simplified, because external enclosure can resist the static pressure of fluid, in the application of the fuel injection system of heat engine, pressure can reach 200 bar especially.
In addition, advantageously, in external enclosure, provide a kind of safety valve, be slightly aligned in operation pressure maximum more than, such as, for above-mentioned 200 bar, be aligned in 220 bar, with in superpressure situation by external enclosure row pressure.
In the configuration with external enclosure, it should be noted that:
If-above-mentioned pad is fluid shim form, the balance between measuring chamber and external enclosure completes automatically by revealing on these pads; In practice, these fluid pads carry out lower pass-filter to pressure in measuring chamber, and consider the pressure of fast-changing pressure and slowly change in external enclosure in measuring chamber;
If-above-mentioned pad is the solid shim form be made up of flexible and sealing material, preferably in measuring chamber, provide a kind of safety valve, to allow measuring chamber externally capsule safety dumping in superpressure situation.
According to another favorable characteristics of the present invention, equipment comprises the pressure regulating system being positioned at external enclosure inside further.
To simplify and in more economical mode of execution, equipment does not comprise external enclosure, and in the case, measuring chamber directly contacts with environment, and directly contacting with the fluid injection system in formation shock and vibration source.In addition, measuring chamber can be designed as the static pressure that fluid is wherein recalled in opposing, and this fluid static pressure can rise to 200 bar due to fuel injection system.Preferably in this simple version, in order to provide a kind of safety valve in measuring chamber, to allow to discharge to measurement outdoor security in superpressure situation.
Advantageously, it is contemplated that providing a kind of carrys out evanescent wave measuring the Helmholtz resonator that locular wall is opened.Note, the Helmholtz resonator used in this measuring chamber also it is contemplated that the measuring chamber for having non-ellipsoidal shape.
The use of this Helmholtz resonator is quite effective at least resonant frequency of resonator, like this can by using multiple Helmholtz resonators with different resonant frequencies, with the mainly thorny frequency of attenuation measurement indoor.
About the data processing after the measurement completed by pressure transducer, use one or more Helmholtz resonator, there is such fact, when fluid density and compressibility change, the resonant frequency of sensor is similar to the frequency decayed in measuring chamber; These changes changed due to temperature, pressure continue to occur, and for a long time, because the change of ventilation equipment and/or fluid ageing continues to occur.Therefore, Helmholtz resonator is the inherent feature being adaptive to fluid.
The invention still further relates to a kind of equipment, according to the present invention, it forms a kind of equipment, for measuring the fuel quantity of the sparger injection used in heat engine.
Therefore, the invention still further relates to the equipment using this equipment as the fuel quantity for measuring the sparger injection used in heat engine.
Accompanying drawing explanation
Other features and advantages of the present invention also show according to the embodiment of the following explanation of reading, two non-limiting embodiment with reference to accompanying drawing, wherein:
-Fig. 1 is the schematic diagram according to the first measuring equipment of the present invention;
-Fig. 2 is the schematic diagram according to the second measuring equipment of the present invention; With
-Fig. 3 is the schematic diagram according to the 3rd measuring equipment of the present invention.
Embodiment
The present invention is described with reference to Fig. 1 to 3, wherein individually disclose the present invention first, second, and third mode of execution, unless and clearly or impliedly point out, otherwise same or analogous element, parts, equipment or assembly represent with same reference character in Fig. 1 to 3 in structure or functionally.
Referring to figs. 1 to 3, measuring equipment 1 according to the present invention is designed to measure the Fluid Volume sprayed by sparger, comprising:
-measuring chamber 2, wherein liquid injected enter, described measuring chamber 2 can by inside limit enclosed space wall limit;
-for Fluid injection being entered the equipment 3 of measuring chamber 2, this spraying equipment 3 is supported by the first supporting element 30 and comprises injection pipe 31, and this injection pipe 31 ends at the spray-hole 32 being positioned at measuring chamber 2 inside;
-be positioned at the pressure transducer 4 of measuring chamber 2 inside, supported by the second supporting element 40;
-be positioned at the temperature transducer 5 of measuring chamber 2 inside, supported by the second supporting element 40;
The emptying equipment 6 of-measuring chamber 2, for the fluid of emptying measuring chamber 2, this emptying equipment is supported by the second supporting element 40 and comprises emptying conduit 61, and it originates in the drain hole 62 being positioned at measuring chamber 2 inside;
The control system 7, particularly electronic controller type of-measurement.
Measuring chamber 2 has common ellipsoidal shape, and in other words, its wall is aspherical ellipsoidal shape, and has the first and second focal point F 1, F2.In a particular embodiment, measuring chamber 2 has rotation ellipsoid shape usually.This measuring chamber 2 has two holes, such as tapped holes being called cross hole at Qi Bishang, for seal support part 30, and the passage of 40.
Spraying equipment 3 comprises:
-regulating equipment 33, particularly type of driver, allow the flow velocity and the pressure that are regulated fluid by the entry conductor 34 of fluid;
-at the entry conductor 34 of regulating equipment 33 input end; With
-at the injection catheter 31 of regulating equipment 33 output terminal, it ends at spray-hole 32.
Regulating equipment 33 is by control system 7 (if Fig. 1 and 2 is by link 71) or driven by external control system.
Emptying equipment 6 comprises:
-regulating equipment 63, particularly type of driver, allow the flow velocity and the pressure that regulate the fluid flowing out emptying conduit 61;
-at the emptying conduit 61 of regulating equipment 63 input end, it originates in drain hole 62; With
-at the delivery channel 64 of regulating equipment 63 output terminal.
Regulating equipment 63 is by control system 7 (if Fig. 1 and 2 is by link 72) or driven by external control system.
First supporting element 30 is made up of hollow tube, and it sealingly extends through the wall of measuring chamber 2, and part is provided with injection catheter 31 therein.This first supporting element 30 has the free end 35 being positioned at measuring chamber 2 first focal point F 1.Spray-hole 32 leads to free end 35 hermetically: this free end 35 is closed in case fluid returns to the first hollow support 30 inside.Therefore, spray-hole 32 is positioned in the first focal point F 1.
Second supporting element 40 is made up of hollow tube, and it sealingly extends through the wall of measuring chamber 2, and part is provided with emptying conduit 61 therein.This second supporting element 40 has the free end 45 being positioned at measuring chamber 2 second focal point F 2.Drain hole 62 leads to free end 45 hermetically: this free end 45 is closed in case fluid returns to the second hollow support 40 inside.Therefore, drain hole 62 is positioned in the second focal point F 2.In addition, pressure transducer 4 and temperature transducer 5 are also arranged on its free end 45, and these two sensors 4,5 are also positioned in the second focal point F 2 like this.
Sensor 4,5 respectively by link 74, and 75 are connected to control system 7, to guarantee sensor 4, the supply of 5 and survey data transfer to control system 7.
Equipment 1 comprises further and is inserted in supporting element 30, and 40 and the gasket seal 37,47 of measuring chamber 2 inwall, be positioned at the cross hole of these supporting elements 30,40.These gasket seals 37,47 can be the fluid shim forms be made up of the application of fluid pad cream especially, and especially in this case, cross hole and supporting element 30,40 are threaded, and are screwed into these cross hole.As distortion, these pads are solid shim forms, that is by seal and the material of flexibility is made.
As shown in Figures 1 to 3, equipment 1 comprises the screen 8 being positioned at measuring chamber 2 inside further, and screen 8 is inserted in bifocal F1, between F2, in the dummy line together with two focal point F 1 being connected directly between with F2.
This screen has to eliminate and comes from the first focal point F 1 pressure wave and directly to before the second focal point F 2 and then can not perform reflection function on the wall of measuring chamber 2, to have precedence over the ripple implementing the first reflection at least one times on wall.
This screen 8 wholely can be made up of pressure wave absorbent material or have the coating be made up of pressure wave absorbent material, and is suspended on bifocal F1, between F2 by least one chain link 80 on the wall that is fixed on measuring chamber 2 and screen 8.This or these chain link 80 can be stiff chain loop type, such as steel, or flexibility, elasticity or damping chain link form.Screen 8 has limited size not destroy the pressure wave implementing at least primary event in measuring chamber 2, and such as size is less than bifocal F1,40% or even 30% of the spacing of F2.Usually, screen 8 does not directly contact with the wall of measuring chamber 2.
At first and the 3rd in mode of execution of Fig. 1 and Fig. 3, measuring equipment 1 comprises external enclosure 9 further, hung by the multiple chain links 90 be fixed on measuring chamber 2 and external enclosure 9 in external enclosure 9 internal measurement room 2, directly do not contact between external enclosure 9 and measuring chamber 2.
The main purpose of this external enclosure 9 measuring chamber 2 and external action is isolated and particularly isolates with shock and vibration.Therefore, these chain links 90 are flexible, elasticity or damping chain link preferably, is configured to absorb the vibration and impact that are received by external enclosure 9, prevents measuring chamber 2 from hitting external enclosure 9 simultaneously.
In the first embodiment, equipment 1 comprises the pressure regulating system 91 being positioned at external enclosure 9 inside further, and it is integrated with:
-regulating equipment 92, particularly type of driver, allow, by regulating conduit 93 to regulate the hydrodynamic pressure in external enclosure 9, to regulate conduit 93 to be positioned at external enclosure 9;
-at the fluid inlet conduit 94 of regulating equipment 92 input end; With
-at the fluid outlet conduit 95 of regulating equipment 92 output terminal.
Regulating equipment 92 is by control system 7 (if Fig. 1 and 2 is by link 73) or is driven by external control system.
This control system 91 comprises pressure transducer 96 further, and is finally arranged on the temperature transducer 97 of external enclosure 9, is applicable to measure the pressure and temperature be present in external enclosure 9 respectively; These sensors 96,97 are respectively by link 76, and 77 are connected to control system 7, to guarantee sensor 96, the supply of 97 and survey data transfer to control system 7.
In the first embodiment, supporting element 30,40 also sealingly extend through external enclosure 9.
Also it is contemplated that and in external enclosure 9, to provide a kind of safety valve (not shown) and/or provide a kind of safety valve in measuring chamber 2, to allow in superpressure situation, safety discharges external enclosure 9 and/or measuring chamber 2.
As shown in Figure 3, also it is contemplated that and provide one or more Helmholtz resonators 100, it opens with attenuate pressure wave on measuring chamber 2 wall; The Helmholtz resonator 100 of this use also it is contemplated that have or do not have external enclosure 9.
Described or each Helmholtz resonator 100 comprises the enclosed cavity 101 that volume is V, and it is communicated with measuring chamber 2 inside by the pipe 102 of length to be L sectional area be S, and also referred to as resonator neck, wherein above-mentioned size is less than the wavelength of above-mentioned absorption pressure Reeb.
About control system 7, allow to measure, control and drive described measuring condition; It is connected with outside, and so such as operator or controller or automatic system are to a higher level.Therefore, control system 7 receives instruction, and finally drive the survey data of regulating equipment 33,63,92 receiving sensor 4,5 and the survey data of final receiving sensor 96,97, its computation and measurement result (spraying the amount of fluid) also provides it to outside.
The embodiment of above-mentioned mode of execution is never restrictive certainly, and can bring measuring equipment other improvement and details according to the present invention, and does not depart from full text of the present invention, and wherein other safety element such as can be added into equipment.
Claims (12)
1. one kind for measuring the equipment (1) of the Fluid Volume sprayed by sparger, described equipment (1) comprise fluid injected enter measuring chamber (2) wherein, for Fluid injection being entered the spraying equipment (3) of described measuring chamber (2), with at least one pressure transducer (4) be arranged in described measuring chamber (2), described pressure transducer (4) is applicable to measure the pressure existed in described measuring chamber (2), the feature of described equipment is, measuring chamber (2) has common ellipsoidal shape, particularly rotation ellipsoid shape, this ellipsoid has the first focus and the second focus (F1, F2), described spraying equipment (3) comprises the spray-hole (32) be arranged in first focus (F1) of described measuring chamber (2), pressure transducer (4) is arranged in second focus (F2) of described measuring chamber (2).
2. equipment according to claim 1 (1), comprise the temperature transducer (5) being arranged in measuring chamber (2) further, described temperature transducer (5) is suitable for measuring the temperature existed in described measuring chamber (2), and wherein, described temperature transducer (5) be also positioned at described measuring chamber (2) the second focus (F2) place, close on pressure transducer (4).
3. equipment according to claim 1 and 2 (1), comprise the emptying equipment (6) of measuring chamber (2) further, emptying equipment (6) has the drain hole (62) being also positioned at described measuring chamber (2) second focus (F2) place, closing on pressure transducer (4).
4. equipment according to any one of claim 1 to 3 (1), comprise the first and second hollow support (30 sealingly extending through described measuring chamber (2) further, 40), described first and second hollow support (30,40) there are the first and second focus (F1 at described measuring chamber (2), F2) place's free end (35,45) of locating respectively support spray-hole (32) and pressure transducer (4) respectively.
5. the equipment (1) according to claim 2,3 and 4, wherein, the second supporting element (40) is also in its free end (45) support temperature sensor (5) and/or drain hole (62).
6. the equipment (1) according to claim 4 or 5, comprises the gasket seal (47,57) be inserted between supporting element (30,40) and measuring chamber (2), preferably the gasket seal of fluid shim form.
7. according to equipment in any one of the preceding claims wherein (1), comprise further and be placed on the inner screen (8) of measuring chamber (2), described screen (8) is inserted in two focus (F1, F2), between, be positioned at two focuses (F1, F2) are connected directly between in dummy line together.
8. equipment according to claim 7 (1), wherein, screen (8) is suspended between two focuses (F1, F2) by one or more chain link (80) be fixed on measuring chamber (2) and screen (8).
9. according to equipment in any one of the preceding claims wherein (1), comprise external enclosure (9) further, it is inner that measuring chamber (2) is suspended on external enclosure (9) by one or more chain link (90) be fixed on measuring chamber (2) and external enclosure (9), directly do not contact between external enclosure (9) and measuring chamber (2), described one or more chain link (90) is flexibility, elasticity or damping chain link preferably.
10. equipment according to claim 9 (1), comprises further and is positioned at the inner pressure regulating system (91) of external enclosure (9).
11. according to equipment in any one of the preceding claims wherein (1), comprises the Helmholtz resonator (100) that at least one opens on measuring chamber (2) wall further.
12. according to equipment in any one of the preceding claims wherein (1), and wherein, described equipment is configured for the equipment of the fuel quantity measuring the sparger injection used in heat engine.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR12/58770 | 2012-09-19 | ||
| FR1258770A FR2995640B1 (en) | 2012-09-19 | 2012-09-19 | DEVICE FOR MEASURING A QUANTITY OF FLUID INJECTED BY AN INJECTOR |
| PCT/FR2013/052144 WO2014044967A1 (en) | 2012-09-19 | 2013-09-18 | Device for measuring an amount of fluid injected by an injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104641103A true CN104641103A (en) | 2015-05-20 |
Family
ID=47178176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380048795.7A Pending CN104641103A (en) | 2012-09-19 | 2013-09-18 | Device for measuring an amount of fluid injected by an injector |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2898213A1 (en) |
| JP (1) | JP2015529777A (en) |
| CN (1) | CN104641103A (en) |
| FR (1) | FR2995640B1 (en) |
| WO (1) | WO2014044967A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837647A (en) * | 2017-01-06 | 2017-06-13 | 中国第汽车股份有限公司 | A kind of fuel injector spray orifice oil spout measuring device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5918683B2 (en) * | 2012-10-16 | 2016-05-18 | 株式会社小野測器 | Injection measuring device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261972A (en) * | 1997-09-23 | 2000-08-02 | 罗伯特·博施有限公司 | Smoke detector |
| CN1645062A (en) * | 2004-01-19 | 2005-07-27 | 小野田元 | Diaphragm gas meter |
| US20060156801A1 (en) * | 2002-10-25 | 2006-07-20 | Ulrich Kuhn | Method and device for measuring the injection rate of an injection valve for liquids |
| JP2006250049A (en) * | 2005-03-11 | 2006-09-21 | Isuzu Motors Ltd | Device and method for injector characteristic measuring test device |
| EP1746394A2 (en) * | 2005-07-20 | 2007-01-24 | AEA S.r.l. | Method for measuring the quantity of fluid ejected by an injector and device to effect said measuring |
| CN101761436A (en) * | 2008-11-27 | 2010-06-30 | Aea有限公司 | Method for measuring the instantaneous flow rate of an injector for gaseous fuels |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2683046B1 (en) * | 1991-10-25 | 1994-02-04 | Schlumberger Industries | DEVICE FOR MEASURING THE SPEED OF A FLUID. |
| FR2795139B1 (en) | 1999-06-18 | 2001-07-20 | Efs Sa | DEVICE FOR INSTANTLY ANALYZING THE CUT-BY-CUT INJECTION FLOW PROVIDED BY AN INJECTION SYSTEM USED IN A HEAT ENGINE |
-
2012
- 2012-09-19 FR FR1258770A patent/FR2995640B1/en not_active Expired - Fee Related
-
2013
- 2013-09-18 EP EP13779621.5A patent/EP2898213A1/en not_active Withdrawn
- 2013-09-18 WO PCT/FR2013/052144 patent/WO2014044967A1/en active Application Filing
- 2013-09-18 JP JP2015531632A patent/JP2015529777A/en active Pending
- 2013-09-18 CN CN201380048795.7A patent/CN104641103A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1261972A (en) * | 1997-09-23 | 2000-08-02 | 罗伯特·博施有限公司 | Smoke detector |
| US20060156801A1 (en) * | 2002-10-25 | 2006-07-20 | Ulrich Kuhn | Method and device for measuring the injection rate of an injection valve for liquids |
| CN1645062A (en) * | 2004-01-19 | 2005-07-27 | 小野田元 | Diaphragm gas meter |
| JP2006250049A (en) * | 2005-03-11 | 2006-09-21 | Isuzu Motors Ltd | Device and method for injector characteristic measuring test device |
| EP1746394A2 (en) * | 2005-07-20 | 2007-01-24 | AEA S.r.l. | Method for measuring the quantity of fluid ejected by an injector and device to effect said measuring |
| CN101761436A (en) * | 2008-11-27 | 2010-06-30 | Aea有限公司 | Method for measuring the instantaneous flow rate of an injector for gaseous fuels |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837647A (en) * | 2017-01-06 | 2017-06-13 | 中国第汽车股份有限公司 | A kind of fuel injector spray orifice oil spout measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2995640A1 (en) | 2014-03-21 |
| WO2014044967A1 (en) | 2014-03-27 |
| FR2995640B1 (en) | 2015-03-20 |
| EP2898213A1 (en) | 2015-07-29 |
| JP2015529777A (en) | 2015-10-08 |
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Application publication date: 20150520 |