Abstract: A method of controlling a flow of a fuel mixture of different types of fuel in a gas turbine engine is described which includes determining a combustive energy value of an input of the fuel mixture in the engine, extracting fuel schedule data from a fuel schedule established for a reference fuel, determining a desired fuel mixture flow rate by adapting the fuel schedule data to the fuel mixture based on the combustive energy value, and controlling a fuel metering device of the engine such that the fuel mixture flow rate corresponds to the desired fuel mixture flow rate.

Abstract: A heat exchanger useful for mounting to an electronic component housing or other system requiring heat exchange. The heat exchanger has a manifold having a cross-sectional configured for providing an unequal coolant flow to an array of cooling channels fed by the manifold, thereby providing for preferential amounts of heat exchange over a given heat exchange surface of the heat exchanger. A safety channel may surround the channels carrying the coolant to prevent potential leakage outside of the heat exchanger.

Abstract: A method of controlling a flow of a fuel mixture of different types of fuel in a gas turbine engine is described which includes determining a combustive energy value of an input of the fuel mixture in the engine, extracting fuel schedule data from a fuel schedule established for a reference fuel, determining a desired fuel mixture flow rate by adapting the fuel schedule data to the fuel mixture based on the combustive energy value, and controlling a fuel metering device of the engine such that the fuel mixture flow rate corresponds to the desired fuel mixture flow rate.

Abstract: A spline coupling comprises a male spline having a plurality of spline teeth separated by keyways. An insert ring comprises a plurality of U-shaped segments each having a pair of side walls separated by a gap and interconnected by a proximal end wall. Each U-shaped segment is configured to be received in one of the keyways of the male spline with the side walls being against surfaces of the keyway and the gap leaving a portion of the keyway exposed. Each U-shaped segment is connected to adjacent U-shaped segments by a distal end wall to leave a portion of the spline teeth exposed between each pair of adjacent U-shaped segments. A female spline has a shape complementary to that of a combination of the male spline and insert ring for coupling engagement therebetween.

Abstract: A heat exchanger useful for mounting to an electronic component housing or other system requiring heat exchange. The heat exchanger has a manifold having a cross-sectional configured for providing an unequal coolant flow to an array of cooling channels fed by the manifold, thereby providing for preferential amounts of heat exchange over a given heat exchange surface of the heat exchanger. A safety channel may surround the channels carrying the coolant to prevent potential leakage outside of the heat exchanger.