Title:
APPARATUS AND METHOD FOR REAL-TIME MEASUREMENT OF MASS, SIZE AND NUMBER OF SOLID PARTICLES OF PARTICULATE MATTER IN ENGINE EXHAUST
Document Type and Number:
WIPO Patent Application WO/2004/046517
Kind Code:
A2
Abstract:
An apparatus for real-time measurement of mass, size and number of solid particles of particulate matter in engine exhaust has a catalytic stripper (14) to remove at least about 90% of a volatile fraction of the particulate matter and pass at least about 95% of a solid fraction of the particulate matter, and a micro-dilution tunnel (50) to cool the test medium after passing through the catalytic stripper (14) and prior to passing through a particle sizer and counter system (58). A method embodying the present invention includes removing a volatile fraction of the particulate matter carried in a sample test stream and comparing the sample after removal of the volatile fraction with a second sample in which the volatile fraction has not been removed. The difference between the two samples represents liquid phase of the volatile fraction of the tested exhaust gas.
Inventors:
ABDUL-KHALEK IMAD SAID
Application Number:
PCT/US2003/031346
Publication Date:
June 03, 2004
Filing Date:
October 02, 2003
Export Citation:
Assignee:
SOUTHWEST RES INST (US)
International Classes:
F02B1/00; G01F1/76; G01M15/00; G01N1/22; G01N15/02; G01N15/06; G01N37/00; F02B; (IPC1-7): F02B/
Foreign References:
| US4586367A | 1986-05-06 | |||
| US4633706A | 1987-01-06 | |||
| US6205842B1 | 2001-03-27 | |||
| US6502450B1 | 2003-01-07 | |||
| US6516654B2 | 2003-02-11 |
Other References:
See also references of EP 1563171A2
Attorney, Agent or Firm:
Lee, Ted D. (P.C. Suite 1500, 700 N. St. Mary's Stree, San Antonio TX, US)
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