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1. US20150300983 - Method and an apparatus for the detection of a tagging material in fluids

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[ EN ]

Claims

1. An apparatus for the real time identification of the tagged working/functional fluids comprising a main fluid travelling conduit ( 19) connecting a fluid entry port of the equipment/machine to the apparatus, an attachment section ( 14) connecting the apparatus to the equipment/machine, an optical measurement section ( 16), and a smart unit ( 18) which is adapted to determine the identity of the fluid characterized by further comprising
a) a splitting region ( 23) inside said conduit, splitting the conduit into at least two partial conduits: at least one measurement conduit ( 15) and at least one further alternate conduit ( 20) for functional fluid flow, and a unifying region ( 24) where the at least one measurement conduit ( 15) and the at least one further alternate conduits ( 20) are unified into a main fluid travelling conduit ( 19),
b) a directing means ( 25) to direct the tagging material ( 2) to the measurement conduit ( 15) by generating electromagnetic force or electrostatic force
c) a tagging material concentrator section ( 17) located in the vicinity of the measurement conduit ( 15) comprising magnetic or dielectrophoretic concentrator ( 10) to employ a magnetic field or an electric field.
2. The apparatus according to claim 1, wherein the tagging material ( 2) comprises a concentrator material ( 3) and a light emitting material ( 4).
3. The apparatus according to claim 1, wherein the main fluid travelling conduit ( 19) has a constant cross section.
4. The apparatus according to claim 1, wherein the main fluid travelling conduit ( 19) has a variable cross section.
5. The apparatus according to claim 1, wherein the flow of the working/functional fluid is adapted to slow down or temporarily stop at the tagging material concentrator section ( 17).
6. The apparatus according to claim 1, wherein the tagging material concentrator section ( 17) is a magnetic unit which is adapted to capture the tagging material ( 2) by using electromagnetic field gradient produced by directing means ( 25).
7. The apparatus according to claim 6, wherein the directing means ( 25) is a permanent magnet.
8. The apparatus according to claim 6, wherein the directing means ( 25) is an electromagnet.
9. The apparatus according to claim 6, wherein the directing means ( 25) is a combination of permanent magnet and electromagnet.
10. The apparatus according to claim 6, wherein the magnetic capture is enhanced with a low flow chamber in the main fluid travelling conduit ( 19).
11. The apparatus according to claim 6, wherein the magnetic capture is enhanced with a mesh structure placed in the main fluid travelling conduit ( 19).
12. The apparatus according to claim 6, wherein the magnetic capture is enhanced with an extra pool placed in the main fluid travelling conduit ( 19).
13. The apparatus according to claim 6, wherein the captured tagging material ( 2) is adapted to release with a valve ( 22) upon completion of the tagging material ( 2) identification.
14. The apparatus according to claim 1, wherein the optical measurement section ( 16) comprises at least one light source ( 11) and at least one photodetector ( 12).
15. The apparatus according to claim 14 wherein at least one photodetector ( 12) is coupled with optical filters ( 13) to measure the spectrum of the emitted light.
16. The apparatus according to claim 14, wherein at least one photodetector ( 12) has different color filters ( 13) to identify different emission spectra.
17. The apparatus according to claim 14, wherein the emitted light from the tagging material ( 2) is adapted to focusd and collect onto photodetectors ( 12) using at least one lens ( 21).
18. The apparatus according to claim 14, wherein the light source ( 11) is focused on tagging materials ( 2) using at least one lens ( 21).
19. The apparatus according to claim 1, wherein the smart unit ( 18) which is adapted to determine the identity of the fluid comprises:
d) a data base module that stores the registration numbers of approved working/functional fluid specific to that equipment/ machine,
e) a comparison module that compares the registration number read by detector with the stored registration number in the data base,
f) a memory module that records the all events based on comparison,
g) a diagnostic module that receives the data from the memory module, and
h) a transfer module that sends the data using a communication means to a receiver.
20. A method for real time identification of a working/functional fluids used in equipment and machines comprising the steps of:
a) adding a tagging material ( 2) comprising a concentrator material ( 3) coupled with a light emitting material ( 4) to the working/functional fluid,
b) filling the working/functional fluid by passing through the main fluid travelling conduit ( 19) from a fluid entry port of the equipment/machine wherein said main fluid travelling conduit ( 19) splits into at least two partial conduits: at least one measurement conduit ( 15) and at least one further alternate conduit ( 20) for functional fluid flow,
c) directing the tagging material to an at least one measurement conduit ( 15) by a directing means ( 25) which generates electromagnetic force or electrostatic force,
d) capturing the tagging material ( 2) at tagging material concentrator section ( 17) comprising magnetic or dielectrophoretic concentrator ( 10) which employs a magnetic field or an electric field to increase the concentration of the tagging material ( 2),
e) illuminating the concentrated tagging material ( 2) with at least one light source ( 11) to excite the light-emitting material ( 4),
f) detecting the light emitted from the light-emitting material ( 4) using at least one photodetector ( 12)
g) transferring the reading to the smart unit ( 18) for the determination of the identity of the fluid, and
h) releasing the tagging material ( 2) into the working/functional fluid upon completion of the measurement.
21. The method according to claim 20, wherein the working/functional fluid is selected from engine oils, refined petroleum products, aqueous urea solutions, heat transfer fluids, transmission and hydraulic fluids, metalworking fluids and dielectric fluids.
22. The method according to claim 20, wherein the concentrator material ( 3) is a magnetic nanoparticle.
23. The method according to claim 20, wherein the light emitting material ( 4) is one or more organic light emitting molecules.
24. The method according to claim 20, wherein the light emitting material ( 4) is one or more quantum dots.
25. The method according to claim 20, wherein the light emitting material ( 4) is the combination of one or more organic light emitting molecules and one or more quantum dots.
26. The method according to claim 20, wherein the tagging material ( 2) has a size between 10 to 1000 nm.
27. The method according to claim 20, wherein the concentrator material ( 3) is a dielectric material whose dielectric coefficient is different than that of the fluid.
28. The method according to claim 20, wherein the light emitting material ( 4) has emission wavelength between 380-1100 nm.
29. The method according to claim 20, wherein the concentrator has a magnetic field gradient.
30. The method according to claim 20, wherein the concentrator has an electric field gradient.
31. The method according to claim 30, wherein the electric field is a time-varying field.
32. The method according to claim 20, wherein following operations are processed by the smart unit ( 18):
a) storing the registration numbers of approved working/functional fluid specific to that equipment/machine,
b) comparing the registration number read by detector with the stored registration number in the data base,
c) recording all the events based on comparison,
d) self-testing of the memory module, and
e) transferring the data using a communication means to a receiver.