Engine intake air flow measuring apparatus

Details Engine intake air flow measuring apparatus Engine intake air flow measuring apparatus

1982-06-30

1984-07-03

Myracle, Jerry W.

Measuring and testing

Simulating operating condition

Marine

7386122, G01M 1500

Patent

active

044571666

ABSTRACT:
Under certain engine operating conditions in which fluctuation of the intake air flow into the engine is relatively intense, an appropriate number of Karman vortex pulses are subtracted from the number of the measured Karman vortex pulses. The remaining number of Karman vortex pulses are used to calculate the intake air flow to the engine to improve the measuring accuracy.

REFERENCES:
patent: 4142407 (1979-03-01), Kuroiwa et al.
patent: 4299121 (1981-11-01), Asayama et al.
patent: 4334426 (1982-06-01), Kita et al.

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