Raytheon Technologies Corporation

Rtx Corporation

Lichu Zhao

Zaffir A Chaudhry

Allan J Volponi

Gregory S Hagen

Sheridon Everette Haye

Yan Chen

Danbing Seto

Robert H Luppold

Alek Gavrilovski

Cameron B Sahirad

A method of producing an operational data for an aircraft turbine engine is provided that including: sensing an inlet airflow to an aircraft turbine engine for CMAS particulate matter, the sensing performed during one or more ground portions of a flight operational cycle of the turbine engine, the sensing producing sensor signals indicative of the presence or absence of the CMAS particulate matter; determining a presence or absence of an exposure by the turbine engine to a CMAS environment based on the sensor signals; and producing an operational data indicative of the presence or absence of said exposure by the turbine engine to said CMAS environment.

Aircraft propulsion system with inlet air monitoring system and method

A method for fault diagnosis of a bearing includes detecting, using an oil debris monitor (ODM) sensor, ODM data corresponding to an amount of debris flowing downstream from the bearing. The method also includes detecting, using a vibration sensor, vibration data corresponding to vibration of the bearing during use. The method also includes determining, by a controller, a vibration stage flag corresponding to a severity of damage of the bearing based on the vibration data. The method also includes determining, by the controller, a severity level of the damage of the bearing based on a combination of the vibration stage flag and the ODM data. The method also includes outputting, by an output device, the severity level.

Integrated vibe/ODM fusion and trending analysis for prognostic health management of engine bearing

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Glastonbury, CT, United States of America

Lichu Zhao