System for sampling specific pollutants contained in diluted exh

Details System for sampling specific pollutants contained in diluted exh System for sampling specific pollutants contained in diluted exh

1999-06-22

2000-10-24

Raevis, Robert

Measuring and testing

Gas analysis

Gas of combustion

G01N 100

Patent

active

061349429

ABSTRACT:
The present invention is a system for specific pollutants contained in diluted exhaust gases from thermal combustion engines, comprising a first module (1) which samples aldehyde and ketone emissions and a second module (2) which samples hydrocarbon emissions. The system according to the invention further comprises a control which coordinates the sampling(s) with predetermined working phases of the thermal engine. The first module (1) comprises a circuit (3) for trapping the aldehydes and the ketones contained in the diluted exhaust gases and a dilution air sampling circuit (4).

REFERENCES:
patent: 3406562 (1968-10-01), Perna, Jr. et al.
patent: 4758521 (1988-07-01), Lushbaugh et al.
patent: 4759210 (1988-07-01), Wohltjen
patent: 5279146 (1994-01-01), Asano et al.
patent: 5498279 (1996-03-01), Klemp
patent: 5599357 (1997-02-01), Lepper
Patent Abstracts of Japan, vol. 012, No. 390 (P-772), Oct. 18, 1988 & JP 63 132161A (Agency of Ind. Science & Technol; Others: 01), Jun. 4, 1988 (Abstract).
Patent Abstracts of Japan, vol. 018, No. 250 (P-1736), May 12, 1994 & JP 06 34500 A (Honda Motor Co. Ltd.), Feb. 8, 1994 (Abstract).
Patent Abstracts of Japan, vol. 016, No. 006 (C-0900), Jan. 9, 1992 & JP 03 232516 A (Nissan Motor Co. Ltd.), Oct. 16, 1991 (Abstract).

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