Apparatus for analyzing particulates

Details Apparatus for analyzing particulates Apparatus for analyzing particulates

1987-02-09

1988-05-31

Levy, Stewart J.

Measuring and testing

Gas analysis

Solid content of gas

G01N 1506

Patent

active

047472979

ABSTRACT:
An apparatus for measuring and analyzing the concentration or weight of particulates in the exhaust gas from a diesel engine. The apparatus includes a carbon particle detector which continuously measures dry soot concentration and high and low temperature HC detectors which respectively continuously measure the concentrations of gaseous hydrocarbon compounds (1) in a high-temperature undiluted state immediately upon leaving the diesel engine and (2) in a low-temperature diluted and cooled state after dilution with room air. Standard gas detectors are provided for both the high-temperature undiluted exhaust gas and the diluted and cooled exhaust gas in order to continuously determine the amount of dilution of the diluted exhaust gas. Outputs from the detectors are input to a computer to provide continuous determination of the total concentration or weight of particulates which are composed of soot particles and soluble organic fractions, as well as separate determinations of these components.

REFERENCES:
patent: 3986386 (1976-10-01), Beltzer et al.
patent: 4257258 (1981-03-01), Bovenlander
patent: 4567750 (1986-02-01), Artmann
patent: 4586367 (1986-05-01), Lewis
patent: 4633706 (1987-01-01), Ito et al.
patent: 4660408 (1987-04-01), Lewis

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