Intake air flow rate measuring device for internal combustion en

Details Intake air flow rate measuring device for internal combustion en Intake air flow rate measuring device for internal combustion en

1976-03-09

1977-11-15

Miles, Tim R.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123139BG, 261 50A, 261 52, F02M 6900

Patent

active

040581004

ABSTRACT:
A flow rate measuring device for an internal combustion engine with an unbalanced sensing vane pivotably disposed in an intake pipe upstream of a throttle valve, an actuating device having a pressure chamber and a movable diaphragm coupled to the sensing vane for actuating the same in response to a pressure applied to the pressure chamber, and a conduit communicating the pressure chamber with the intake pipe between the sensing vane and the throttle valve. The flow rate measuring device further has a pressure difference responsive valve responsive to a pressure difference across the sensing vane to compensate the pressure applied to the pressure chamber, whereby the pressure difference across the sensing vane can be kept constant irrespective of changes in the amount of intake air.

REFERENCES:
patent: 3103211 (1963-09-01), Cameron
patent: 3628515 (1971-12-01), Knapp et al.
patent: 3650258 (1972-03-01), Jackson
patent: 3680535 (1972-08-01), Eckert et al.
patent: 3739762 (1973-06-01), Jackson
patent: 3777727 (1973-12-01), Kirchner et al.
patent: 3929114 (1975-12-01), Schmidt et al.
patent: 3934561 (1976-01-01), Romann et al.
patent: 3953548 (1976-04-01), Jaggle et al.
patent: 3963005 (1976-06-01), Eckert

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