Electrically conductive polymers as sensing media to detect leaks in aerospace pneumatic ducts

US9989435B2 · kind B2 · utility

Assignee

• Eaton Intelligent Power Limited · IE

Inventors

• Chinmaya Rajiv Dandekar · Pune, IN
• Kartikeya Mahalatkar · Kharadi, IN
• Manoj Kumar Verma · Bhinga, IN
• Soumayajit Sarkar · Farmington Hills, US
• Kenneth Phaneuf · Chelsea, US
• Javed Mapkar · Farmington Hills, US

Key dates

• Filing date: Nov 14, 2014
• Grant date: Jun 5, 2018
• Expiry date: Mar 31, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01M3/182
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A leak detection system for a high-temperature aerospace fluid duct may include a rigid metal fluid duct, an electrically conductive polymer disposed around the high-temperature fluid duct, the conductive polymer configured to melt in response to a leak of high-temperature fluid from the high-temperature fluid duct. The system may include a sensor configured to monitor at least one electrical characteristic of the electrically conductive polymer. The system may include a layer of insulation disposed between the electrically conductive polymer and the high-temperature fluid duct.