United Technologies Corporation

Sikorsky Aircraft Corporation

Kevin Patrick McCormick

Amy Rose Grace

William Donat

Angelo Martucci

Eric Nelson Hettler

Thomas A Bush

Haralambos Cordatos

Kevin D Gibbons

Michael J Moore

Jeremy W Sheaffer

Maksim Bobrov

Myra Torres

Christopher Mazella

Abhijit Bhoite

Nikhil Beke

Timothy Duffy

A fuel actuation system may comprise a servo valve (SV) including a torque motor and at least one screen, a metering valve (MV) fluidly connected to the SV, and an electronic engine control (EEC) operatively connected to the SV. The EEC may be configured and disposed to determine a travel time of the MV, a travel distance of the MV, a pressure of a fuel, and/or a temperature of the fuel, generate at least one of a travel time history, a travel distance history, a fuel temperature history, and a fuel pressure history, and determine a level of degradation of the fuel actuation system based on the at least one of the travel time history, the travel distance history, the fuel temperature history, or the fuel pressure history.

Fuel metering valve actuator initiated built in test

A system and method for the calculation of a fuel lacquer index using environmental monitoring is disclosed. The system and method may comprise: capturing a fuel temperature data; determining a fuel quality rating; calculating a volumetric fuel flow; calculating a fuel filter differential pressure; and calculating a fuel lacquer index. The fuel lacquer index may be calculated as a percentage value based upon the fuel temperature data, the fuel quality rating, the volumetric fuel flow, and the fuel filter differential pressure.

System and method for the calculation of a fuel lacquer index

Systems and methods for monitoring fuel actuation system health are described herein. A method for monitoring fuel actuation system health may comprise: moving a metering valve from a first position to a second position; detecting a first travel distance of the metering valve; storing the first travel distance of the metering valve to memory to generate a first travel distance history; and determining a level of degradation of the fuel actuation system based on at least the first travel distance history.

An inspection apparatus includes an imaging unit producing image signals; a processing unit for receiving the image signal; the imaging unit producing a stack of images of an article at different focal lengths in response to the processing unit; the processing unit generating a depth map from the stack of images; the processing unit analyzing the depth map to derive a depth profile of an object of interest; the processing unit determining a surface mean for the article from the stack of images; and the processing unit characterizing the article as degraded or contaminated in response to the depth profile and the surface mean.

Apparatus and method to automatically distinguish between contamination and degradation of an article

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Auburn, NY, United States of America

Kevin Patrick McCormick