General Electric Company

Michael John Lynch

Alok Mani Srivastava

Charles D Greskovich

Steven Jude Duclos

Thomas Earnest Moldenhauer

Bouria Mohamed Faqihi

James Frederik Den Outer

Sheng Jia Zheng

Steven C Castellaw

Richard Preston Epley

Abdul Khaliq

A method for detecting leakage at a fluid connection for a gas turbine fuel supply system is disclosed herein. The method includes closing a flow control valve at an upstream end of the fuel supply system and pressurizing the fuel supply system with a compressed medium via a compressed medium supply to a target pressure. The target pressure is less than a pressure threshold of a check valve that is disposed downstream from the compressed medium supply and upstream from a corresponding combustor of the gas turbine. The method further includes pointing a receiver portion of an ultrasonic detection device proximate to at least one tube fitting of the fuel supply system located between the flow control valve and a combustor which is fluidly coupled to the fuel supply system. Detection of an increase in sound level and/or the sound of popping at the tube fitting is indicative of a leak at the tube fitting.

Method for detecting leaks in a fuel circuit of a gas turbine fuel supply system

Decay time in scintillator compositions comprising yttrium or lutetium and gadolinium oxides and europium oxide is decreased by incorporating therein at least one of the oxides of ytterbium, samarium, praseodymium, neodymium, dysprosium, holmium, thulium, cerium and erbium as an acceptor. Other properties including afterglow and radiation damage are maintained at acceptable levels.

Rare earth X-ray scintillator compositions

X-ray scintillators and devices incorporating them

Growing community of inventors

New Berlin, WI, United States of America

Michael John Lynch