Mass air flow meter

Details Mass air flow meter Mass air flow meter

1987-08-12

1988-06-14

Dolinar, Andrew M.

Measuring and testing

Vehicle chassis

Steering

731182, 123480, 123494, 36443104, G01M 1500, F02D 4118

Patent

active

047503521

ABSTRACT:
A system and method for measuring the air flow into an engine including a throttle bore and a throttle for varying the effective area of the throttle bore and a throttle bypass passage including a bypass valve for varying the effective area of the bypass passage. The air meter determines the air flow into the engine based upon the effective area established by the throttle and the bypass valve and where at closed throttle position the effective area of the throttle at closed position is determined based upon the air flow into the engine through the bypass passage when the engine idle speed is controlled to a predetermined idle speed.

REFERENCES:
patent: 3871214 (1975-03-01), Masaki et al.
patent: 4332226 (1982-06-01), Nomura et al.
patent: 4446523 (1984-05-01), Reinke
patent: 4644474 (1987-02-01), Aposchanski et al.
patent: 4664090 (1987-05-01), Kabasin

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