System for measuring intake airflow rate in an engine

Details System for measuring intake airflow rate in an engine System for measuring intake airflow rate in an engine

1987-04-28

1989-01-17

Myracle, Jerry W.

Measuring and testing

Simulating operating condition

Marine

G01M 1500

Patent

active

047980834

ABSTRACT:
A system for measuring intake airflow rate in an engine has an airflow meter provided in an intake passage upstream of a throttle valve. The intake airflow rate of the flow entering into a space between the throttle valve and the cylinders of the engine, without entering into the cylinders, is calculated. The difference between the intake airflow rate measured by the airflow meter and the airflow rate of flow in the space is calculated to provide the actual intake airflow rate of flow actually entering into the cylinders.

REFERENCES:
patent: 4046161 (1983-09-01), Locke et al.
patent: 4074573 (1978-02-01), Nordhofen
patent: 4411235 (1983-10-01), Shinoda et al.
patent: 4450715 (1984-05-01), Sumal
patent: 4463601 (1984-08-01), Rask

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