US 12,005,451 B2
System and method for oil condition monitoring
Oluwarotimi Alabi, Aberdeen (GB); Surakat Kudehunbu, Aberdeen (GB); Barry James Warden, Aberdeen (GB); and Stephen McIntosh, Aberdeen (GB)
Assigned to RAB Microfluidics Research and Development Company Limited, Arberdeen (GB)
Appl. No. 17/256,348
Filed by RAB MICROFLUIDICS RESEARCH AND DEVELOPMENT COMPANY LIMITED, Aberdeen (GB)
PCT Filed Jun. 28, 2019, PCT No. PCT/GB2019/051846
§ 371(c)(1), (2) Date Dec. 28, 2020,
PCT Pub. No. WO2020/002946, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 1810589 (GB), filed on Jun. 28, 2018.
Prior Publication US 2021/0260585 A1, Aug. 26, 2021
Int. Cl. F01M 11/10 (2006.01); B01L 3/00 (2006.01); G01J 3/10 (2006.01); G01N 33/28 (2006.01)
CPC B01L 3/502753 (2013.01) [F01M 11/10 (2013.01); G01J 3/10 (2013.01); G01N 33/2858 (2013.01); G01N 33/2888 (2013.01); B01L 2300/0681 (2013.01); F01M 2011/1413 (2013.01); F01M 2011/144 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A microfluidic system for monitoring the condition of lubricating oil comprising:
a microfluidic device comprising at least one microchannel configured to allow a sample of lubricating oil to pass therethrough as a laminar flow; and a
at least one separating device configured to selectively separate at least one component from the lubricating oil in the fluid flow, wherein the at least one separating device comprises a diffusion extractor configured to allow diffusion across the fluid interface of parallel fluid streams;
wherein the microfluidic system comprises a detector device configured to detect the presence and/or measure at least one property of the at least one component passing through the microfluidic device after separation in the at least one microchannel.