Adaptable dual delta-P flow measurement

US11008948B2 · kind B2 · utility

Assignee

• Hamilton Sundstrand Corporation (HSC) · US

Inventors

• Robert M. DeRoy · Tolland, US
• Patrick Yung · South Windsor, US
• John M. Maljanian · Farmington, US
• Jeffry K. Kamenetz · Windsor, US
• Mark Vignali · Thomaston, US
• John A. Schwemmer · Ellington, US

Key dates

• Filing date: Sep 13, 2018
• Grant date: May 18, 2021
• Expiry date: Jan 8, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/50
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

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.