Method for measuring the rate of recirculation of exhaust gases

Details Method for measuring the rate of recirculation of exhaust gases Method for measuring the rate of recirculation of exhaust gases

1980-01-24

1982-01-05

Burns, Wendell E.

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

123571, 123440, 123 1R, 73116, F02M 2506

Patent

active

043088465

ABSTRACT:
A method and apparatus for measuring the rate of recirculation of exhaust gases in an internal combustion engine are disclosed. The rate of recirculation is measured by determining the percentage of carbon gas in the exhaust gas, determining the percentage of carbon gas in the intake gas at a point downstream from the introduction of the recirculated gas and comparing the ratios of carbon gas in the two gases. The gases are drawn off for collection and determination of carbon gas content by a vacuum generator connected to a carbon analyzer and a pressure regulator. A 3-way selection valve is used for drawing off either the exhaust or intake gas.

REFERENCES:
patent: 3872846 (1975-03-01), Taplin et al.
patent: 4095462 (1978-06-01), Goto
patent: 4130098 (1978-12-01), Linder et al.
patent: 4189355 (1980-02-01), Fudishiro et al.
patent: 4227496 (1980-10-01), Martel

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