Honeywell International Inc.

Andrew Earl

Yogendra Y Sheoran

Bin Dong

Kyusung Kim

Qingqiu Ginger Shao

William Facinelli

Jun Isobe

Alan Kang

Roy Araki

Eric Shi

Wenyan Guo

Yogendra Yogi Sheoran

A maintenance system is provided for an environmental conditioning element of an environmental control system of a vehicle. The maintenance system includes a data acquisition module configured to determine an ambient temperature, an altitude of the vehicle, and a measured ECS compressor temperature; a fouling module coupled to receive the ambient temperature, the altitude, and the measured ECS compressor temperature from the data acquisition module and configured to generate a fouling condition of the environmental conditioning element based on at least the ambient temperature, the altitude, and the measured ECS compressor temperature; and a reporting module coupled to receive the fouling condition from the fouling module and configured to generate a report for a user that includes the fouling condition.

Aircraft maintenance systems and methods for ECS fouling predictions

A gas distribution system may include a gas mass flow sensor with a resistive element configured to be heated, a thermally conductive shell surrounding the resistive element and heat-transfer control elements. The shell may include a leading surface oriented substantially orthogonal to a direction of gas flow. The heat-transfer control elements may be positioned to focus heat transfer from the resistive element through the leading surface of the shell so that a rate of heat transfer is independent from the variations in flow configuration.

System for gas distribution and mass flow measurement

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Torrance, CA, United States of America

Andrew Earl