Intake air amount measuring apparatus for internal combustion en

Details Intake air amount measuring apparatus for internal combustion en Intake air amount measuring apparatus for internal combustion en

1995-11-20

1997-10-28

Dombroske, George M.

Measuring and testing

Simulating operating condition

Marine

G01F 168

Patent

active

056819897

ABSTRACT:
The invention provides an apparatus for measuring intake air for an internal combustion engine by means of a detecting unit including a heat generating resistor, and a flow amount arithmetic unit for calculating an air flow amount on the basis of the output from the detecting unit. The measuring apparatus further includes an equalizer circuit for regulating the amplitude or phase of the output signal from the detecting unit, between the detecting unit and the flow amount arithmetic unit.

REFERENCES:
patent: 4311042 (1982-01-01), Hosoya et al.
patent: 4404846 (1983-09-01), Yamauchi et al.
patent: 4449397 (1984-05-01), Lauterbach
patent: 4463601 (1984-08-01), Rask
patent: 4523462 (1985-06-01), Kolodjski
patent: 4719890 (1988-01-01), Wataya et al.
patent: 4934189 (1990-06-01), Tanimoto et al.
patent: 4938061 (1990-07-01), Carp
"Hot Wire Air Mass Meter--A New Air Flow Meter for Gasoline Fuel Injection System," R. Sauer, SAE 800468, 1980.
"Hot Wire Air Flow Meter for Engine Control System," S. Ueno et al., SAE 830615, 1983.

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