Aircraft environmental control system that optimizes the proportion of outside air from engines, APU's, ground air sources and the recirculated cabin air to maintain occupant comfort and maximize fuel economy

US9957052B2 · kind B2 · utility

Assignee

• HONEYWELL INTERNATIONAL INC. · US

Inventors

• Richard B. Fox · San Tan Valley, US
• Bijan F. Hagh · Newport Beach, US
• Mike Koerner · Rancho Palos Verdes, US
• Stephen Yates · South Barrington, US
• Peter M. Michalakos · Arlington Heights, US
• Russell W. Johnson · Villa Park, US

Key dates

• Filing date: Jan 27, 2015
• Grant date: May 1, 2018
• Expiry date: Jan 2, 2036

Classification

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

Abstract

An Environmental Control System includes sensors, an air purification subsystem, and a controller in communication with the sensors and air purification subsystem. The sensors detect contaminants in outside air supplied through engine and APU bleeds or other air sources including ground supplies and electric compressors, contaminants in recirculated air, particulates in outside air, carbon dioxide in recirculated air, temperature in an environment, and pressure in an environment. These sensed parameters are compared against thresholds. Based on the comparisons, changes to the outside air and/or recirculated air are made.