WO2016142062A1 - Capteur d'analyse spectrometrique d'un carburant gazeux a pression variable pour vehicule automobile - Google Patents
Capteur d'analyse spectrometrique d'un carburant gazeux a pression variable pour vehicule automobile Download PDFInfo
- Publication number
- WO2016142062A1 WO2016142062A1 PCT/EP2016/000418 EP2016000418W WO2016142062A1 WO 2016142062 A1 WO2016142062 A1 WO 2016142062A1 EP 2016000418 W EP2016000418 W EP 2016000418W WO 2016142062 A1 WO2016142062 A1 WO 2016142062A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gaseous fuel
- sensor
- guide tube
- window
- variable pressure
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D19/02—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
- F02D19/021—Control of components of the fuel supply system
- F02D19/022—Control of components of the fuel supply system to adjust the fuel pressure, temperature or composition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/0027—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures the fuel being gaseous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
- F02D41/1444—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases
- F02D41/1451—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the characteristics of the combustion gases the sensor being an optical sensor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/0303—Optical path conditioning in cuvettes, e.g. windows; adapted optical elements or systems; path modifying or adjustment
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/05—Flow-through cuvettes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0611—Fuel type, fuel composition or fuel quality
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N2021/036—Cuvette constructions transformable, modifiable
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/08—Optical fibres; light guides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Definitions
- the invention relates to the field of electronic sensors used in motor vehicles and more particularly concerns a sensor for spectrometric analysis of a gaseous fuel with variable pressure for a motor vehicle and a motor vehicle comprising such a sensor.
- sensors for spectrometric analysis of liquid fuel such as, for example, gasoline or diesel fuel
- sensors for spectrometric analysis of gaseous fuel with variable pressure under pressure such as, for example, methane or dihydrogen.
- Such sensors are mounted in the fuel delivery circuit connecting the fuel tank to the engine and comprise in known manner a tube through which the fuel flows.
- This tube comprises two transparent or translucent portions called windows arranged facing each other so as to allow the passage of an optical flow through the fuel flowing in the tube.
- the optical flux is received by a receiver which in known manner performs the spectrometric analysis to determine the fuel composition.
- This analysis of the fuel composition can be used by an electronic control unit of the vehicle, for example to optimize the injection of fuel into the engine.
- the distance separating the two passage windows of the optical flow depends on the pressure of the gas to be measured.
- the value of the optical path must be large, for example 10 mm, whereas for high pressure gases, the value of the optical path must be low, for example 2 mm.
- the optical path when the optical path is not adapted to the pressure of the gas, the signal generated by the sensor may be noisy, that is to say inaccurate. This can result in an erroneous spectrometric analysis, which presents a major drawback.
- the optical path is not necessarily adapted to the different pressure values of the gas flowing in the sensor.
- the object of the invention is to overcome this disadvantage by proposing a gas spectrometric analysis solution at various pressures, both low and high, which is at the same time simple, reliable and effective.
- the invention relates to a sensor for spectrometric analysis of a gaseous fuel with variable pressure for a motor vehicle, said sensor comprising:
- a body comprising a gaseous fuel circulation duct with variable pressure
- a sliding guide tube of said optical flow comprising a proximal end coupled to the emitter and a distal end comprising a first window opening into the circulation duct and configured to allow the passage of the optical flow
- a second window arranged facing the first window so as to allow the optical flow to pass through the circulation duct
- a receiver of said optical stream configured to receive and analyze the optical stream received through the second window
- a gaseous fuel sampling channel with variable pressure in the circulation duct A gaseous fuel sampling channel with variable pressure in the circulation duct
- optical flux is meant a flow of light waves making it possible to perform the spectrometric analysis of a gaseous fuel with variable pressure.
- the sensor ⁇ according to the invention is intended to be mounted in the fuel conveying circuit connecting a fuel tank to the vehicle engine or directly into a fuel tank of the vehicle.
- the sensor according to the invention therefore advantageously makes it possible to adapt the optical path as a function of the variations in pressure of the gaseous fuel with variable pressure.
- the sensor thus generates a low signal-to-noise ratio regardless of the pressure value of the gaseous fuel at variable pressure, which significantly improves the accuracy of the spectrometric analysis.
- the distal end of the sliding guide tube comprises a first ring and the first window is mounted in the center of said first ring.
- the first window and the second window are transparent and / or translucent so as to allow the passage of the optical flow.
- the first window and the second window are each in the form of a cup, for example glass or plastic material, easy to achieve.
- the displacement means of the sliding guide tube comprise a compression spring mounted around the sliding guide tube and a driving member of said spring.
- the drive element comprises a second ring integral with the sliding guide tube extending radially from the outer wall of the sliding guide tube.
- This second ring defines, on one side, a gaseous fuel receiving space with variable pressure and, on the opposite side, a decompression space in which the compression spring extends.
- the second ring is configured to receive pressure exerted by the variable pressure gaseous fuel.
- the sliding guide tube comprises a wall for holding the cylindrical compression spring extending from the second ring into the decompression space.
- variable pressure gaseous gas sampling channel opens into the reception space.
- the body of the sensor comprises an air passage channel connecting the decompression space to the space outside the sensor.
- the sliding guide tube extends along a longitudinal axis orthogonal to the longitudinal axis of the circulation duct.
- the senor comprises a plurality of seals, for example of the O-ring type, arranged between the body and the sliding guide tube in order in particular to guarantee the seal, on the one hand, between the reception space and the space outside the sensor and, on the other hand, between the decompression space and the circulation duct.
- the invention also relates to a vehicle comprising at least one gaseous fuel tank with variable pressure, at least one gaseous fuel engine with variable pressure, a gaseous fuel delivery circuit with variable pressure of said tank to said engine and a pressure sensor.
- spectrometric analysis as presented previously arranged in said routing circuit or in the tank to determine the composition of the gaseous fuel at variable pressure flowing in the conveyance circuit or stored in said tank.
- FIG. 1 is a longitudinal sectional view of an embodiment of the sensor according to the invention in the rest position.
- FIG. 2 is a longitudinal sectional view of an embodiment of the sensor according to the invention in a position of use.
- FIG. 3 is a perspective view of the embodiment illustrated in FIG.
- FIG. 4 is a perspective view of the embodiment illustrated in FIG. 2.
- the sensor described hereinafter with reference to FIGS. 1 to 4 is intended to be mounted in a circuit (not shown) for supplying gaseous fuel with variable pressure between a gaseous fuel tank with variable pressure and a motor of a vehicle. automobile.
- the sensor according to the invention could be mounted directly in a fuel tank of the vehicle.
- the purpose of the sensor according to the invention is to perform the spectrometric analysis of gaseous fuel at variable pressure.
- the senor 1 firstly comprises a cylindrical body 2 and a conduit 4 for circulating a flow F1 of gaseous fuel with variable pressure (with reference to FIG. 4).
- the cylindrical body 2 extends along a longitudinal axis X-X and comprises a first end 2A and a second end 2B.
- the duct 4 for circulating a flow F1 of gaseous fuel with variable pressure extends from said body 2 along a longitudinal axis YY orthogonal to the longitudinal axis XX of the body 2. It will be noted that this circulation duct 4 can be mounted on the body 2 or be derived directly from the material of the body 2. In this preferred example, the circulation duct 4 is mounted at the second end 2B of the body 2 without this being limiting to the scope of the present invention.
- the sensor 1 also comprises an emitter 6 of an optical flux F 2 (i.e. a light flux) with reference to FIGS. 3 and 4, a sliding guide tube 8 of said optical flux F 2 and a receiver 10 of said optical flux F 2.
- the optical flux F2 is emitted by the transmitter 6 through the sliding guide tube 8.
- Such a transmitter 6 is known to those skilled in the art and will not be further detailed.
- the longitudinal axis YY of the body 2 and the longitudinal axis of the sliding guide tube 8 are merged.
- the sliding guide tube 8 and the body 2 are coaxial along the longitudinal axis YY.
- the sliding guide tube 8 defines an inner diameter d1 and an outer diameter d2.
- the sliding guide tube 8 comprises a proximal end 8A, coupled to said emitter 6 and being able to extend outside the body 2 as illustrated in FIGS. 1 and 3, and a distal end 8B that can extend into the circulation duct 4 and comprising a first ring 11 in the middle of which is mounted a first window 12.
- the coupling of the transmitter 6 with the sliding guide tube 8, known to those skilled in the art, has not been shown in the figures.
- the emitter 6 can be connected to the proximal end 8A of the sliding guide tube 8, for example by means of an optical fiber, or mounted on or in the end 8A proximal of the sliding guide tube 8.
- the first window 12 is in the form of a cylindrical cup of small thickness, for example 1 or 2 mm, of diameter d3, for example of the order of 6 mm, made of a transparent or translucent material, for example a plastic material or glass, and whose axis of revolution coincides with the longitudinal axis YY.
- This first window 12 is configured to allow the passage of the optical flux F2 while preventing the entry of the gaseous fuel with variable pressure into the sliding guide tube 8.
- the sensor 1 comprises, at the second end 2B of the body 2 on which the circulation duct 4 is mounted, a circular support frame 13 at the center of which is mounted a second window 14 arranged facing the first window 12, by report the longitudinal axis YY of the circulation duct 4, so that the optical flux F2 emitted by the emitter 6 in the sliding guide tube 8 successively passes through the first window 12 and then the circulation duct 4 and the second front window 14 to reach the receiver 10.
- this second window 14 is in the form of a cylindrical cup of small thickness, for example 1 or 2 mm, of diameter d3, for example of the order 6 mm, made in one. transparent or translucent material, for example a plastic material or glass, and whose axis of revolution coincides with the longitudinal axis YY.
- This second window 14 is configured to allow the passage of the optical flow while prohibiting the output of the gaseous fuel with variable pressure of the circulation duct 4.
- the receiver 10 is configured to receive the optical flux F2 emitted by the emitter 6 into the sliding guide tube 8 and having passed successively through the first window 12, the circulation duct 4 and the second window 14.
- the receiver 10 is also configured to perform a spectrometric analysis of the received optical flux F 2 in order to determine the composition of the flow F1 of gaseous fuel with variable pressure flowing in the circulation duct 4.
- the spectrometric analysis could be performed by an entity external to the receiver 10 but connected thereto. Such a spectrometric analysis is known to those skilled in the art and will therefore not be further detailed.
- the sliding guide tube 8 is slidably mounted in the body 2 in a guide duct 15 formed in said body 2.
- the sliding guide tube 8 is configured to slide between a rest position illustrated in FIGS. 1 and 3, characterized by the absence of fuel circulation in the circulation duct 4, and a plurality of positions of use of the sensor, an example of a position is shown in Figures 2 and 4, characterized by the passage of a gaseous fuel pressure variable pressure.
- the senor 1 comprises means for moving the sliding guide tube 8.
- These moving means comprise a compression spring 16 mounted around the sliding guide tube e and a driving element 18 of said spring 16.
- this drive element 18 comprises a second ring gear 20 secured to the sliding guide tube 8 extending radially from the outer wall of the sliding guide tube 8 and whose axis of revolution is coaxial with the longitudinal axis YY of the sliding guide tube 8.
- This second ring 20, of external diameter d4 defines on one side a receiving space 22 of gaseous fuel with variable pressure and on the other side a decompression space 24 in which the compression spring 16 extends.
- the sliding guide tube 8 comprises a holding wall 26 of cylindrical shape, of external diameter slightly less than d4 to see moving in the decompression space 24, extending from the second ring 20 against the walls of the decompression space 24 towards the circulation duct 4, parallel to the longitudinal axis YY of the sliding guide tube 8.
- the second ring 20 is configured to receive a pressure exerted by the gaseous fuel at variable pressure to drive the sliding guide tube 8 in translation.
- the senor 1 comprises a sampling duct 28 of gaseous fuel with variable pressure in the circulation duct 4, opening into the receiving space 22, and an air passage channel 30 connecting the decompression space 24 to the outer space 32 to the sensor 1.
- the senor 1 comprises a plurality of seals 34, for example of the O-ring type, disposed between the body 2 and the sliding guide tube 8, in particular to guarantee the seal, on the one hand, between the receiving space 22 and the outer space 32 to the sensor 1 and, on the other hand, between the decompression space 24 and the circulation duct 4.
- seals 34 for example of the O-ring type
- the emitter 6 emits an optical flux F2 into the sliding guide tube 8 so that this optical flux F2 passes through said sliding guide tube 8 from its proximal end 8A at its end. distal 8B where it passes through the first window 12 and then transversely, the circulation duct 4 and the second window 14 until reaching the receiver 10.
- the sliding guide tube 8 is in its rest position, the proximal end 8A of the sliding guide tube 8 extends to the outside 32 of the body 2 at the from its first end 2B, the spring 18 is not compressed and the distance C1 between the first window 12 and the second window 14 is maximum.
- the pressure of the gaseous fuel with variable pressure is such that the spring 16 is compressed to the maximum, which corresponds to a minimum distance C2 between the first window 12 and the second window 14.
- This sliding of the sliding guide tube 8 in the guide duct 15 is notably made possible by the evacuation, in the form of a flow F4, of the air located in the decompression space 24 towards the outside 32 of the sensor 1 through the passage channel 30.
- the higher the pressure of the gaseous fuel with variable pressure the more the distance between the first window 12 and the second window 14 is reduced in the compression limit of the spring 16.
- the contact surface of the second ring 20 in the receiving space 22 and the compression ratio of the spring 16 must thus be chosen so as to adapt the distance between the first window 12 and the second window 14 to the value necessary to achieve reliable spectrometric analysis.
- the displacement means of the sliding guide tube 8 can be dimensioned in the following manner.
- the zero pressure or a minimum threshold value of the pressure P min of the gaseous fuel with variable pressure may correspond to the maximum distance C1 between the first window 12 and the second window 14 (maximum optical path).
- the maximum pressure P max (or a maximum threshold value of the pressure) of the variable pressure gaseous fuel may correspond to the minimum distance C2 between the first window 12 and the second window 14 (minimal optical path).
- P is the pressure of the gaseous fuel with variable pressure flowing from the circulation duct 4 and into the sampling channel 28,
- the preload or preload F rl of the spring 16 (force of the spring 16 in the rest position of the sliding guide tube 4) must be greater than or equal to the axial component of the friction resistance of the set of dynamic seals.
- the maximum pressure P max of the gaseous fuel is considered, when the force F r exerted by the compression spring 6 is equal to the maximum force F r2 of the compressed spring 16, the spring 16 is compressed, and the guide tube 8 is in the position where the distance between the first window 12 and the second window 14 is minimal, equal to C2.
- o u Pmax is the maximum pressure (threshold) value of the gaseous fuel at variable pressure.
- the method according to the invention therefore advantageously makes it possible to adapt the distance between the first window 12 and the second window 14, that is to say, to adapt the size of the optical path as a function of the pressure of the variable pressure gaseous fuel. in order to allow a reliable spectrometric analysis of the gaseous fuel with variable pressure flowing in the circulation duct 4.
- the present invention is not limited to the examples described above and is capable of numerous variants accessible to those skilled in the art.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/556,594 US10094765B2 (en) | 2015-03-12 | 2016-03-09 | Sensor for spectrometric analysis of a variable-pressure gaseous fuel for automotive vehicle |
| KR1020177029112A KR102484044B1 (ko) | 2015-03-12 | 2016-03-09 | 자동차용 가변 압력 기체 연료의 분광 분석용 센서 |
| CN201680015018.6A CN107430070B (zh) | 2015-03-12 | 2016-03-09 | 用于机动车辆的对可变压力气体燃料进行光谱分析的传感器 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1552052A FR3033646B1 (fr) | 2015-03-12 | 2015-03-12 | Capteur d'analyse spectrometrique d'un carburant gazeux a pression variable pour vehicule automobile |
| FR1552052 | 2015-03-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016142062A1 true WO2016142062A1 (fr) | 2016-09-15 |
Family
ID=53274604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2016/000418 Ceased WO2016142062A1 (fr) | 2015-03-12 | 2016-03-09 | Capteur d'analyse spectrometrique d'un carburant gazeux a pression variable pour vehicule automobile |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10094765B2 (fr) |
| KR (1) | KR102484044B1 (fr) |
| CN (1) | CN107430070B (fr) |
| FR (1) | FR3033646B1 (fr) |
| WO (1) | WO2016142062A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3052865B1 (fr) * | 2016-06-17 | 2018-07-13 | Continental Automotive France | Procede de mesure de pression d'un carburant gazeux comprime dans une ligne d'alimentation d'un moteur equipant un vehicule automobile et dispositif de mesure associe |
| US10246103B2 (en) * | 2017-05-03 | 2019-04-02 | Ford Global Technologies, Llc | Vehicle odor remediation |
| CN108581421A (zh) * | 2018-06-29 | 2018-09-28 | 杭州高品自动化设备有限公司 | 用于汽车凸轮轴压装机中的压力传感监控机构 |
| CN115165754B (zh) * | 2022-09-07 | 2022-11-15 | 江苏三恒科技股份有限公司 | 一种煤矿用高浓度激光甲烷传感器组件 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3339950A1 (de) * | 1983-11-04 | 1985-05-15 | Hartmann & Braun Ag, 6000 Frankfurt | Fotometer zur kontinuierlichen analyse eines mediums (gas oder fluessigkeit) |
| JPS61194334A (ja) * | 1985-02-22 | 1986-08-28 | Shimadzu Corp | 赤外線ガス分析計 |
| US5168367A (en) * | 1991-01-16 | 1992-12-01 | Rourke Patrick E O | Variable path length spectrophotometric probe |
| US5268736A (en) * | 1992-02-28 | 1993-12-07 | Prather William S | Light absorption cell combining variable path and length pump |
| NL1003961C2 (nl) * | 1996-09-05 | 1998-03-06 | Berson Milieutech | Werkwijze en inrichting voor het bepalen van transmissie van een fluïdum, alsmede sensor geschikt voor een dergelijke inrichting. |
| JPH11229949A (ja) * | 1998-02-10 | 1999-08-24 | Nissan Motor Co Ltd | 内燃機関の燃料濃度検出装置 |
| JP2005221298A (ja) * | 2004-02-04 | 2005-08-18 | Mitsubishi Electric Corp | 吸光分析装置、吸光分析方法、フローセル及び半導体デバイスの製造方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2444598C2 (de) * | 1974-09-18 | 1982-12-16 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffeinspritzanlage |
| US7593101B2 (en) * | 2007-04-10 | 2009-09-22 | Schlumberger Technology Corporation | High-pressure cross-polar microscopy cells having adjustable fluid passage and methods of use |
| US8635985B2 (en) * | 2008-01-07 | 2014-01-28 | Mcalister Technologies, Llc | Integrated fuel injectors and igniters and associated methods of use and manufacture |
| DE102011102430A1 (de) * | 2011-05-24 | 2012-11-29 | Schott Ag | Optischer Durchflusssensor |
| US9249737B2 (en) * | 2013-02-26 | 2016-02-02 | General Electric Company | Methods and apparatus for rapid sensing of fuel wobbe index |
-
2015
- 2015-03-12 FR FR1552052A patent/FR3033646B1/fr active Active
-
2016
- 2016-03-09 WO PCT/EP2016/000418 patent/WO2016142062A1/fr not_active Ceased
- 2016-03-09 KR KR1020177029112A patent/KR102484044B1/ko active Active
- 2016-03-09 CN CN201680015018.6A patent/CN107430070B/zh active Active
- 2016-03-09 US US15/556,594 patent/US10094765B2/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3339950A1 (de) * | 1983-11-04 | 1985-05-15 | Hartmann & Braun Ag, 6000 Frankfurt | Fotometer zur kontinuierlichen analyse eines mediums (gas oder fluessigkeit) |
| JPS61194334A (ja) * | 1985-02-22 | 1986-08-28 | Shimadzu Corp | 赤外線ガス分析計 |
| US5168367A (en) * | 1991-01-16 | 1992-12-01 | Rourke Patrick E O | Variable path length spectrophotometric probe |
| US5268736A (en) * | 1992-02-28 | 1993-12-07 | Prather William S | Light absorption cell combining variable path and length pump |
| NL1003961C2 (nl) * | 1996-09-05 | 1998-03-06 | Berson Milieutech | Werkwijze en inrichting voor het bepalen van transmissie van een fluïdum, alsmede sensor geschikt voor een dergelijke inrichting. |
| JPH11229949A (ja) * | 1998-02-10 | 1999-08-24 | Nissan Motor Co Ltd | 内燃機関の燃料濃度検出装置 |
| JP2005221298A (ja) * | 2004-02-04 | 2005-08-18 | Mitsubishi Electric Corp | 吸光分析装置、吸光分析方法、フローセル及び半導体デバイスの製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20170128449A (ko) | 2017-11-22 |
| FR3033646A1 (fr) | 2016-09-16 |
| FR3033646B1 (fr) | 2018-09-28 |
| US20180052097A1 (en) | 2018-02-22 |
| US10094765B2 (en) | 2018-10-09 |
| CN107430070A (zh) | 2017-12-01 |
| CN107430070B (zh) | 2020-01-10 |
| KR102484044B1 (ko) | 2023-01-02 |
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