Proportional exhaust sampler and control means

Details Proportional exhaust sampler and control means Proportional exhaust sampler and control means

1984-03-19

1986-05-06

Myracle, Jerry W.

Measuring and testing

Gas analysis

Gas chromatography

73 28, 73116, G01M 1500

Patent

active

045863679

ABSTRACT:
A testing apparatus for measuring the particulate and/or gaseous content of an exhaust source for use in evaluating the exhaust emissions of internal combustion engine provides both fixed flow and proportional flow control of the diluted particulate containing sample. The sample is diluted with carefully metered, clean dry air by one or more hybrid electrical-fluid control circuits for remarkably improved response time and accuracy.

REFERENCES:
patent: 3407646 (1968-10-01), Traver
patent: 3603155 (1971-09-01), Morris et al.
patent: 3699814 (1972-10-01), Kaufman
patent: 3965749 (1976-06-01), Hadden et al.
patent: 4226675 (1980-10-01), Lewis et al.
patent: 4351181 (1982-09-01), Currans
patent: 4379402 (1983-04-01), Harman, III

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