Measurement of mass airflow into an engine

Details Measurement of mass airflow into an engine Measurement of mass airflow into an engine

1983-09-08

1985-03-05

Myracle, Jerry W.

Measuring and testing

Simulating operating condition

Marine

7386102, G01M 1500

Patent

active

045023255

ABSTRACT:
To measure the mass airflow into an engine having a manifold with a given volume, the mass airflow through an induction passage into the manifold is measured by a meter and the measured value is changed by an amount to compensate for changes of air density in the manifold. The manifold pressure and temperature are monitored and the correction value is calculated as where V is the manifold volume, R is a gas constant, T is the temperature and P is the air pressure in the manifold.

REFERENCES:
patent: 3958447 (1976-05-01), Baker et al.
patent: 4279146 (1981-07-01), Wessel et al.
patent: 4285246 (1981-08-01), Kita
patent: 4419898 (1983-12-01), Zanker et al.

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