Hamilton Sundstrand Corporation

Patrick Yung

Mark Vignali

John M Maljanian

Jeffry K Kamenetz

Robert M DeRoy

John A Schwemmer

A system includes a venturi duct, a first delta P sensor, a second delta P sensor, and an ECS controller. The venturi duct is configured to receive a first bleed air flow or a second bleed air flow. The first and second delta P sensors are configured to sense a first and second pressure difference between a first point and a second point of the venturi duct. The first and second delta P sensors are configured to sense pressure difference over different pressure ranges. The ECS controller is configured determine a flow rate of an ECS air flow based upon the first pressure and/or second sensed pressure differences.

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South Windsor, CT, United States of America

Patrick Yung