Method and apparatus for sensing the condition of a fluid

Electricity: measuring and testing – Electrolyte properties – Using a conductivity determining device

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

324441, 324698, 324721, 324 711, 73 6174, G01N 2702

Patent

active

056442394

ABSTRACT:
A method and apparatus for determining the condition of a fluid used in a process, such as a lubricating oil used in an internal combustion engine. A sample of the fluid is heated to an elevated temperature, a measurement is taken of an electrical characteristic of the fluid at that first temperature, the fluid is heated still further, and the aforesaid electrical characteristic is measured again. The two measured values of the electrical characteristic are used to calculate a quality parameter which, when compared with quality parameter values corresponding to fluid samples of varying condition, gives an estimate of the relative condition of the fluid sample under test. The test procedure also includes a measurement of the opacity of the fluid sample to visible light, with this measurement being used in conjunction with the calculated quality parameter to more accurately determine the relative condition of the fluid under test. The tester unit may be operated in a stand-alone manner or it may be connected to a computer for storage and display of test results.

REFERENCES:
patent: 1721374 (1929-07-01), Dautsizen
patent: 2548763 (1951-04-01), Askevold
patent: 2752566 (1956-06-01), Quinton
patent: 3515988 (1970-06-01), Shawhan
patent: 3836849 (1974-09-01), Coulter et al.
patent: 4029554 (1977-06-01), Ellison
patent: 4686857 (1987-08-01), Kato
patent: 4733556 (1988-03-01), Meitzler et al.
patent: 4744870 (1988-05-01), Kauffman
patent: 4764258 (1988-08-01), Kauffman
patent: 5028144 (1991-07-01), Klein
patent: 5059891 (1991-10-01), Bohandy et al.
patent: 5194910 (1993-03-01), Kirkpatrick, Jr. et al.
patent: 5272444 (1993-12-01), Cox

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for sensing the condition of a fluid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for sensing the condition of a fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for sensing the condition of a fluid will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-600199

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.