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

US11105712B2 · kind B2 · utility

Assignee

• RAYTHEON TECHNOLOGIES CORPORATION · US

Inventors

• Yan Chen · South Windsor, US
• Danbing Seto · Avon, US
• Sheridon Everette Haye · Willimantic, US
• Allan J. Volponi · West Simsbury, US
• Zaffir A. Chaudhry · South Glastonbury, US
• Gregory S. Hagen · Glastonbury, US
• Lichu Zhao · Glastonbury, US
• Robert H. Luppold · West Newton, US

Key dates

• Filing date: Apr 6, 2018
• Grant date: Aug 31, 2021
• Expiry date: Oct 1, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02C7/06
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

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.