Method and device for the measurement of exhaust gas from...

Details Method and device for the measurement of exhaust gas from... Method and device for the measurement of exhaust gas from...

2006-04-04

2006-04-04

Gray, David M. (Department: 2855)

Measuring and testing

Simulating operating condition

Marine

C073S023310, C073S023320

Reexamination Certificate

active

07021130

ABSTRACT:
A Method and device for the measurement of exhaust gas from internal combustion engines using a full-flow dilution method in which the exhaust volume flow is mixed with dilution air so that in specified test cycles, a defined total volume flow results, from which a partial sampling volume flow is extracted, on which a measurement of particulate emissions and/or gaseous components in the exhaust is conducted, and wherein a smoothed curve (II) of the exhaust flow (I) that is varied during the test cycles is determined, and the total volume flow (III) is adjusted in proportion to the variations in the measured smoothed curve of the exhaust flow.

REFERENCES:
patent: 5761901 (1998-06-01), Staufenberg et al.
patent: 6405577 (2002-06-01), Hanashiro et al.
patent: 6516654 (2003-02-01), Uchihara et al.
patent: 24 44 117 (1976-03-01), None
patent: 40 17 472 (1991-11-01), None
patent: 55 065133 (1980-05-01), None
patent: WO 96 01998 (1996-01-01), None
Patent Abstracts Of Japan, vol. 004, No. 107 (P-021), (Jul. 31, 1980).

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