EP3682233A1 - Dispositif de mesure de la stabilite a l'oxydation et/ou de la stabilite thermique d'un carburant au moyen d'une puce micro-fluidique - Google Patents
Dispositif de mesure de la stabilite a l'oxydation et/ou de la stabilite thermique d'un carburant au moyen d'une puce micro-fluidiqueInfo
- Publication number
- EP3682233A1 EP3682233A1 EP18758895.9A EP18758895A EP3682233A1 EP 3682233 A1 EP3682233 A1 EP 3682233A1 EP 18758895 A EP18758895 A EP 18758895A EP 3682233 A1 EP3682233 A1 EP 3682233A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- measuring
- micro
- microfluidic chip
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 149
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 22
- 230000003647 oxidation Effects 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 239000003502 gasoline Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 5
- 238000010008 shearing Methods 0.000 claims description 5
- 239000003225 biodiesel Substances 0.000 claims description 4
- 239000002551 biofuel Substances 0.000 claims description 4
- 238000007670 refining Methods 0.000 claims description 4
- -1 diesel Substances 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 description 20
- 239000000463 material Substances 0.000 description 7
- 238000012512 characterization method Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 230000002572 peristaltic effect Effects 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000004205 dimethyl polysiloxane Substances 0.000 description 2
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004696 Poly ether ether ketone Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000572 ellipsometry Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011066 ex-situ storage Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005305 interferometry Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2805—Oils, i.e. hydrocarbon liquids investigating the resistance to heat or oxidation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/10—Integrating sample preparation and analysis in single entity, e.g. lab-on-a-chip concept
Definitions
- the present invention relates to the field of the analysis and characterization of a fuel, in particular a fuel type diesel, biodiesel, gasoline or jet fuel (fuel used in aviation also called jet fuel but also kerosene abuse of language) .
- It relates more particularly to a characterization device for measuring the oxidation stability and / or the thermal stability of the fuel.
- Stability of fuels is attracting considerable interest from players in the aeronautics sector and in the field of land vehicles but also from the field of refining due, on the one hand, to the diversification of fuels (fuels derived from crude oil, alternative fuels). and biofuels) and processes, and on the other hand, technological developments.
- anti-pollution standards imposed on vehicles encourage manufacturers to develop more and more efficient engines to reduce emissions at source, ie, from the moment of combustion, what is translated by a current technology of combustion engines with operating conditions of diesel injection systems increasingly severe, with an increase in thermal stresses (T> 150 °), an increase in pressure (P> 2500 bar) associated to a decrease in the diameter of the injector holes.
- the thermal stability of jet fuels is controlled and measured through the JFTOT TM test (Jet Fuel Thermal Oxidation Tester, for thermal oxidation test of jet fuels).
- JFTOT TM test involves circulating a jet fuel around a heated tube.
- a JFTOT TM test dedicated to diesel fuel is currently non-existent in the standard and in the fuel specification.
- this equipment has the disadvantages of being bulky, to have a difficult interpretation. It may be added that the results obtained by this method are not representative of what is found on the real system, in particular by the choice of materials.
- the JFTOT-type test requires a large amount of fuel and a secure environment.
- micro-fluidic chips In order to reduce bulk, some fuel test means use micro-fluidic chips.
- An example of such a fuel oxidation test means is described in patent application BR PI 1002057-8 A2.
- the specific test described in this document relates to accelerated oxidation by means of ozone injection.
- the device described in this patent application is complex because it requires the injection of ozone into the fuel.
- the micro-fluidic cell which has a unique pattern does not reproduce the physical phenomena to which fuels are subject in reality.
- the present invention relates to a device for measuring the oxidation stability and / or the thermal stability of any type of fuel, including diesel, by a miniaturization of the test system using the micro technique.
- - fluidic The physical phenomena to which the fuels are subjected are reproduced by the microchannels of the microfluidic chip, which comprise means representative of the injection of the fuel and / or the circulation of the fuel for a drive system, for example a internal combustion engine, or an aeronautical reactor.
- the invention relates to a device for measuring the oxidation stability and / or thermal stability of a fuel, said measuring system comprising fuel supply means, a micro-fluidic chip, circulation means said fuel within said microfluidic chip from said fuel supply means, and means for measuring oxidation stability and / or thermal stability of said fuel, said measuring means being bonded to said chip microfluidics.
- Said microfluidic chip comprises a micro-channel circuit for circulating said fuel, said micro-channels comprising means representative of the injection and / or the circulation of said fuel for a drive system, such as a combustion engine. internal combustion or a reactor.
- said means representative of the injection or the circulation of a fuel comprise at least one means of shearing said fuel.
- said fuel shearing means comprises at least one diameter restriction of a microchannel for circulating said fuel.
- said representative means further comprises at least one micro-channel bypassing said fuel, and / or at least one predetermined form of microchannel for circulating said fuel.
- the dimensions of said micro-fluidic chip are between 10x20 mm and 50x100 mm.
- said measurement means comprise measuring means relating to the flow of said fuel to determine a variation of a physical property of said fuel.
- said measuring means relating to the flow of said fuel comprise at least one flowmeter, and / or at least one pressure sensor and / or a pressure differential sensor, and / or means for controlling a fuel pressure. deposition formed in said microfluidic chip.
- said measuring means comprise at least one spectrometer.
- said microfluidic chip is made of glass or metal.
- said fuel is a fuel type jet fuel, diesel, biodiesel, biofuel, alternative fuel, refining cuts or gasoline.
- said measuring device comprises means for heating said microfluidic chip.
- said means for circulating said fuel comprise a syringe pump.
- the invention relates to a system for testing a fuel comprising a measuring device according to one of the preceding characteristics connected to a reserve of said fuel.
- the invention relates to a fouling sensor arranged within an internal combustion engine or a reactor.
- the fouling sensor comprises a measuring device according to one of the preceding characteristics.
- Figure 1 illustrates a measuring device according to one embodiment of the invention.
- FIG. 2 illustrates an exemplary microfluidic chip according to one embodiment of the invention.
- the present invention relates to a device for measuring the oxidation stability and / or the thermal stability of a fuel.
- the device according to the invention allows in particular to measure the deposits, in other words the fouling, from a fuel under specific conditions, which correspond to the conditions of use of the fuel.
- the device according to the invention can be used to analyze the problems of clogging and formation of varnish type deposits, gum, lacquer and coke within a drive system.
- oxidation stability The tendency of a fuel to degrade from the oxidation of its compounds by contact with oxygen is called oxidation stability or autoxidation.
- Thermal stability or thermo-oxidation is the characteristic of a fuel to degrade or decompose from exposure to high temperatures in a medium with or without oxygen. It can be noted that the temperature having a direct effect on the kinetics of the decomposition reactions of a fuel.
- a drive system is a system that converts the chemical energy of a fuel into mechanical energy.
- it may be an internal combustion engine, or an aeronautical reactor (aeronautical turbine).
- the fuel tested can be of any type, in particular a diesel, a biodiesel, a gasoline, a biofuel, an alternative fuel or a jet fuel.
- the system according to the invention comprises at least:
- fuel supply means to be tested it may be in particular a fuel reserve, or means of connection to a fuel supply system,
- microfluidic chip which comprises micro-channels for the flow of fuel, and in which the fuel is degraded and / or forms deposits,
- the measuring means are able to measure at least one characteristic of the fuel flowing in the micro-fluidic chip, and / or a characteristic related to the deposit (fouling) in the microchip -fluidique.
- a micro-fluidic chip is a set of micro-channels etched or molded in a material (for example glass (from quartz to fused silica via sodocalcics and borosilicates), silicon, metal or polymer such as PDMS, for PolyDiMethylSiloxane, or photosensitive resins such as SU-8, or thermoplastic polymers, such as PMMA or PEEK).
- a material for example glass (from quartz to fused silica via sodocalcics and borosilicates), silicon, metal or polymer such as PDMS, for PolyDiMethylSiloxane, or photosensitive resins such as SU-8, or thermoplastic polymers, such as PMMA or PEEK).
- the micro-channels constituting the micro-fluidic chip are connected together so as to achieve a desired function (mixtures, pumping, sorting, control of the bio-chemical environment, measurements, chemical analyzes).
- This network of micro-channels enclosed in the microfluidic chip is connected to the outside by at least one input and at least one output pierced through the chip, as interfaces between the macroscopic and microscopic world. It is through these holes that the fuel is injected and discharged from the micro-fluidic chip (through tubes, syringe adapters or even simple holes in the chip) with active external systems (pressure controller, syringe pump or peristaltic pumps) or passive means (eg hydrostatic pressures).
- a microfluidic chip can operate under pressure.
- the microchannels of the microfluidic chip comprise means representative of the injection and / or the circulation of the fuel in a drive system (for example internal combustion engine or reactor).
- Fuel flow is the whole system that connects the fuel tank to the drive system within a vehicle (automobile or aeronautic).
- a vehicle autonomous or aeronautic
- microchannels of the microfluidic chip may comprise the following representative means, alone or in combination:
- At least one diameter restriction of a micro-fuel circulation channel such a diameter restriction may notably make it possible to represent the fuel injection or the presence of a valve
- At least one micro-channel for diverting the fuel (in other words, the separation of the fuel in at least two parallel micro-channels), such a bypass may make it possible in particular to represent a portion of a fuel supply circuit; fuel of a drive system,
- At least one predetermined form of a micro-channel for example a curvature of the micro-channel, this predetermined shape can notably be used to represent a curved portion of a fuel supply circuit of a drive system.
- the representative means may comprise at least one means representative of a restriction generating shearing of the fuel. Shear is typically encountered when fuel is passed through an injector for application in both the automotive (diesel and gasoline) and aeronautical (kerosene) fields.
- the micro-fluidic chip makes it possible to carry out measurements representative of the actual conditions of use of the fuel within an injection system. In this way, it is possible to precisely quantify the impact of the evolution of the oxidation stability and the thermal stability of a fuel in a so-called microfluidic system that is as representative as possible of a real fuel circuit. .
- Such representative means generating shear may preferentially take the form of a diameter restriction of a micro-channel (whatever the type of restriction: shoulder, frustoconical part, etc.).
- the micro-fluidic chip has the advantage of having reduced dimensions, especially with respect to the systems of the prior art.
- the dimensions of the microfluidic chip are between 10 ⁇ 20 mm and 50 ⁇ 100 mm.
- the micro-channels may have diameters of between 10 ⁇ and 1000 ⁇ .
- the micro-channels may have lengths of between a few cm and a few m.
- the microchannels are substantially cylindrical and of circular section to limit the pressure drops.
- the micro-channels may have any shape adapted to the circulation of the fluid: for example cylindrical and elliptical section, parallelepipedic, etc.
- the measurement means linked to the microfluidic chip may comprise the following elements, alone or in combination:
- the measuring device may comprise two flowmeters, one upstream of the chip; micro-fluidic, and one downstream of the micro-fluidic chip, this assembly makes it possible to measure the evolution of the flow rate induced by the degradation of the fuel and the deposit formation within the microfluidic chip, especially if one works with a controlled pressure pump (flow control system type Fluigent),
- the measuring device can comprise two sensors of pressure, one upstream of the micro-fluidic chip, and one downstream of the microfluidic chip, or a differential pressure sensor, this assembly makes it possible to measure in particular the evolution of the pressure drop induced by the degradation of the fuel or the deposition formation within the microfluidic chip, especially if working with a controlled flow pump type syringe pump or piston,
- a spectrometer for measuring in particular the aging of the fuel within the micro-fluidic chip, for example infrared, UV, fluorescence, etc., a spectrometer only realizes the chemical properties of the fuel, means for measuring in-line viscosity and / or density,
- these deposit control means may notably be:
- Optical measuring means in real time (for example if the micro-fluidic chip is made of glass) or ex-situ, to measure the thickness and / or the color and / or the volume of the deposit, for example at by one of the following methods: interferometry or ellipsometry described in ASTM D3241, o means for measuring the mass of the deposit,
- Measurements of flow and / or pressure can make it possible to determine the existence or not of an oxidation, by analysis of the variations of the flow and / or of the pressure.
- the flow and pressure measurements can be performed in real time.
- the measuring means are provided for carrying out fuel flow measurements.
- flow measurements can be implemented by a flow meter, a pressure or differential pressure sensor, viscosity measuring means, deposit control means.
- the microfluidic chip can be made of glass, because this material is compatible with the fuels and the conditions of use. In addition, this material facilitates measurements, in particular optical measurements.
- the micro-fluidic chip can be made of metal, because this material is compatible with the fuels and the conditions of use.
- the metal corresponding to the materials used in the drive systems the realization of the micro-fluidic metal chip ensures a good representation of the measurement.
- the measuring device comprises means for heating the micro-fluidic chip, for example in the form of at least one electrical resistance.
- the heating means make it possible to heat the fuel flowing in the micro-fluidic chip, in order to make the fuel circulation conditions in the microfluidic chip more severe.
- the measurement of the oxidation stability and particularly the thermal stability are precisely determined.
- the heating means make it possible to heat the microfluidic chip at temperatures between 25 and 300 ° C., preferably between 50 and 200 ° C.
- the measuring device may comprise a plurality of micro-fluidic chips.
- each micro-fluidic chip may have a heating means set to a different temperature.
- the micro-fluidic chips can be associated in parallel. Alternatively, the micro-fluidic chips can be associated in series. This configuration makes it possible to limit the size of the measuring device.
- the fluid circulation means in the micro-fluidic chip may be able to regulate the flow of fuel flowing in the microfluidic chip.
- the fuel circulation means may be a syringe pump (with a volume of between 10 ⁇ _ and 50 ml_), which is suitable for low volumes and flow rates. implemented by the device according to the invention.
- the fuel circulation means may be a pump, for example a peristaltic pump, or a controlled pressure pump (flow control system type Fluigent).
- the measuring device may furthermore comprise at least one of the following equipment:
- a filter to prevent the transport of the deposit, and which can be used to measure the deposit collected by the filter
- FIG. 1 illustrates, schematically and in a nonlimiting manner, a measuring device 1 according to one embodiment of the invention.
- the measuring device 1 comprises a fuel inlet 2 (for example a fuel reserve), which feeds a syringe pump 3 by means of a three-way valve 4. Then, by pushing the syringe pump 3, the fuel is led to the micro-fluidic chip 7 by means of pipes 16, different pipe sections 16 are connected together by means of connectors 10.
- the connectors 10 allow adaptation to different diameters of the pipes.
- the micro-fluidic chip 7 is mounted on a support 6.
- the micro-fluidic chip may have a fuel inlet diameter of 500 ⁇ ), and a fuel outlet of 100 ⁇ , for example a diameter restriction (not shown ) being provided between the inlet and the outlet of the microfluidic chip.
- the support 6 may comprise heating means (not shown) to heat the fuel flowing in the micro-fluidic chip 7.
- For the measuring means there are provided two flow meters 5 and 8 and a differential pressure sensor 1 1 on either side of the chip. Upstream of the micro-fluidic chip 7, the first flowmeter 5 measures the flow of the fuel. In addition, downstream of the microfluidic chip 7 is the second flowmeter 8.
- the measuring device 1 also comprises an outlet 9 of the fuel which collects the fuel tested. According to one embodiment of the invention, it is possible to work in a closed loop by ensuring a recirculation of the fluid between the outlet and inlet tanks 9 using for example a peristaltic pump.
- FIG. 2 schematically illustrates, in a nonlimiting manner, a microfluidic chip according to one embodiment of the invention.
- the microfluidic chip 7 shown comprises a single rectilinear micro-channel 12.
- the micro-channel 12 comprises a fuel inlet 13, a diameter restriction 14 and a fuel outlet 15, the diameter of the outlet 15 being smaller than the diameter 13.
- the micro-fluidic chip illustrated can be used to represent the injection of fuel (eg diesel) in an internal combustion engine or a reactor.
- fuel eg diesel
- the present invention also relates to a fuel test system comprising a measuring device according to one of the variants described above (or a combination of variants described above).
- the fuel test system can be connected to a fuel reserve.
- the measuring device can serve as a test, for example for the choice of a fuel according to conditions of use.
- the present invention relates to a fouling sensor comprising a measuring device according to one of the variants described above (or a combination of variants described above).
- the fouling sensor may be arranged within a drive system, such as an internal combustion engine or a reactor (or aeronautical turbine).
- the fouling sensor can be embedded in a vehicle (for example terrestrial or aeronautical).
- the fouling sensor makes it possible to detect the clogging of the drive system, following the detection of a deposit in the measuring device. Installation within a drive system is made possible due to the dimensions of the microfluidic chip.
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Fluid Mechanics (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Measuring Volume Flow (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1758485A FR3071062B1 (fr) | 2017-09-13 | 2017-09-13 | Dispositif de mesure de la stabilite a l'oxydation et/ou de la stabilite thermique d'un carburant au moyen d'une puce micro-fluidique |
| PCT/EP2018/073335 WO2019052826A1 (fr) | 2017-09-13 | 2018-08-30 | Dispositif de mesure de la stabilite a l'oxydation et/ou de la stabilite thermique d'un carburant au moyen d'une puce micro-fluidique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3682233A1 true EP3682233A1 (fr) | 2020-07-22 |
Family
ID=60020213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18758895.9A Withdrawn EP3682233A1 (fr) | 2017-09-13 | 2018-08-30 | Dispositif de mesure de la stabilite a l'oxydation et/ou de la stabilite thermique d'un carburant au moyen d'une puce micro-fluidique |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11598761B2 (fr) |
| EP (1) | EP3682233A1 (fr) |
| FR (1) | FR3071062B1 (fr) |
| WO (1) | WO2019052826A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3102249B1 (fr) | 2019-10-21 | 2021-10-08 | Ifp Energies Now | Dispositif de mesure de la stabilité d’un carburant au moyen de mesures de variation de la capacité thermique et de la fluorescence |
| CA3116337A1 (fr) * | 2020-04-27 | 2021-10-27 | Grand Valley State University | Appareil et methode de microenvironnement pour un relais de reference air-sol |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3670561A (en) * | 1970-01-30 | 1972-06-20 | Alf Hundere | Apparatus for determining the thermal stability of fluids |
| US4595824A (en) * | 1984-09-19 | 1986-06-17 | The United States Of America As Represented By The Secretary Of The Air Force | Heater block assembly for use in thermal oxidation testing of jet fuel |
| US4842410A (en) * | 1986-10-24 | 1989-06-27 | Geo-Centers, Inc. | Apparatus and method utilizing interference fringes to determine the thermal stability of a liquid |
| US4832857A (en) * | 1988-08-18 | 1989-05-23 | Amoco Corporation | Process for the preparation of overbased molybdenum alkaline earth metal and alkali metal dispersions |
| US5337599A (en) * | 1990-04-20 | 1994-08-16 | Alcor, Inc. | Apparatus and method for determining the thermal stability of fluids |
| US5101658A (en) * | 1990-11-26 | 1992-04-07 | Alcor, Inc. | Apparatus for determining the thermal stability of fluids |
| US5299449A (en) * | 1992-04-30 | 1994-04-05 | The United States Of America As Represented By The Secretary Of The Navy | Liquid flow reactor and method of using |
| US5293218A (en) | 1992-06-30 | 1994-03-08 | The United States Of America As Represented By The Secretary Of The Navy | Interferometric JFTOT tube deposit measuring device |
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| US6370946B1 (en) * | 2000-05-02 | 2002-04-16 | Southwest Research Institute | High temperature diesel deposit tester |
| US7290441B2 (en) * | 2001-10-31 | 2007-11-06 | Rheosense, Inc. | Micro slit viscometer with monolithically integrated pressure sensors |
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-
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- 2018-08-30 US US16/646,795 patent/US11598761B2/en active Active
- 2018-08-30 WO PCT/EP2018/073335 patent/WO2019052826A1/fr not_active Ceased
- 2018-08-30 EP EP18758895.9A patent/EP3682233A1/fr not_active Withdrawn
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Also Published As
| Publication number | Publication date |
|---|---|
| US20200264155A1 (en) | 2020-08-20 |
| US11598761B2 (en) | 2023-03-07 |
| FR3071062A1 (fr) | 2019-03-15 |
| FR3071062B1 (fr) | 2019-08-30 |
| WO2019052826A1 (fr) | 2019-03-21 |
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