Abstract: A method and a system for a mounting device are provided. The mounting device includes at least two shells, each shell having an inner surface and an outer surface wherein the outer surface includes a first banding zone, a second banding zone, and a clamping zone extending between the first banding zone and the second banding zone and a pair of shoulders bounding each of the first banding zone and second banding zone. The mounting device also includes an intermediary material circumscribing the wire bundle including at least one of a substantially non-porous material, a vulcanizing tape, and a silicone material. The mounting device further includes at least one fastener configured to engage the first banding zone or second banding zone to couple the first shell and the second shell to the wire bundle and the intermediary material.

Abstract: A discharge switch device is provided that includes a comparator portion, a temperature compensation diode, and a trigger portion. The comparator portion is configured to compare an input voltage value to a reference voltage value. The temperature compensation diode is configured to reduce variation of the reference voltage value. The trigger portion is configured to discharge stored energy when the input voltage value exceeds the reference voltage value.

Abstract: A method for controlling the operation of an ignition exciter with a rechargeable energy source supplying electricity to a solid-state switch is disclosed. The method includes charging the energy source at a first rate when the voltage of the energy source is less than a first voltage reference value.

Abstract: A method of assembling a temperature sensing device for a gas turbine engine is provided. The method includes providing a temperature sensor and providing a housing configured to envelop the temperature sensor. The method further includes mounting the temperature sensor within the housing such that a portion of the temperature sensor is disposed outside of the housing and such that the housing is configured to receive a flow of cooling air.

Abstract: An ignition exciter system for igniting fuel in a gas turbine engine. The ignition exciter system includes a rechargeable energy source, at least one pulse-forming network coupled to the rechargeable energy source and generating a stored energy waveform from energy in the rechargeable energy source, at least one igniter plug coupled to the at least one pulse-forming network to receive the stored energy waveform and generating a spark in response to the received stored energy waveform.

Abstract: A method and system for a mounting device for an electrical harness of a gas turbine engine are provided. The mounting device includes a first and a second semi-cylindrical shell, the first and second shells are hingedly coupled along respective adjacent edges. Each of the first and second shells includes a first end region, a second end region and a middle region extending between the first end region and the second end region. The middle region defines a mounting seat having an outer diameter that is less than an outer diameter of the first end region and the second end region. The mounting device also includes at least one fastener configured to couple the first shell to the second shell with the wire bundle disposed between the first shell and the second shell such that movement of the first shell and the second shell along the wire bundle is restricted.

Abstract: A convective heat transfer increaser feature for a process sensor. The feature may include at least annular fins, helical fins, knurling or other features which increase surface area. The features also increase turbulence which increases adherence of the turbulent flow to the process sensor.

Abstract: Methods of forming a heat exchanger from a metal body made from a material having a melting temperature greater than 660° C. with the metal body having opposing first and second surfaces and at least one fluid passageway formed in the metal body so that fluid may be passed through the fluid passageway and heat from the fluid may be dissipated through a plurality of fins.

Abstract: An ignition exciter system for igniting fuel in a gas turbine engine. The ignition exciter system includes a rechargeable energy source, at least one pulse-forming network coupled to the rechargeable energy source and generating a stored energy waveform from energy in the rechargeable energy source, at least one igniter plug coupled to the at least one pulse-forming network to receive the stored energy waveform and generating a spark in response to the received stored energy waveform.

Abstract: A method for controlling the operation of an ignition exciter with a rechargeable energy source supplying electricity to a solid-state switch is disclosed. The method includes charging the energy source at a first rate when the voltage of the energy source is less than a first voltage reference value.

Abstract: A spark plug having a shell defining a cavity, an insulator disposed within the cavity, and an electrode at least partially encapsulated by the insulator. The electrode may be formed from a ruthenium (Ru) electrode material having a columnar grain structure. Further, the ruthenium (Ru) electrode material may have a purity greater than 99.90 wt. percentage.

Abstract: The present disclosure relates to a high temperature resistance temperature detector for measuring exhaust gas temperature for example. The structure includes a resistive element disposed on an insulated carrier. The structure further includes a housing disposed over the carrier and resistive element for inhibiting oxidation of the element which would result in failure of the detector.

Abstract: A surface heat exchanger is provided which utilizes forward and aft brackets to retain the heat exchanger in position. The surface heat exchanger includes a plurality of core cooling channels as well as fins which are disposed for air flow through the gas turbine engine. The brackets include a low-friction wear material as well as an isolator sheet which provides some spring force on the heat exchanger.

Abstract: An adaptor tool comprises a locking pin removably engaged with a main body defining a hook portion. The main body is configured to pivot about a pivot pin. The adaptor tool further includes a first link having first and second ends, and a first contact face. The first link is configured to receive the locking pin. A second link includes first and second ends, and a second contact face. The second link is pivotally coupled to the main body via the pivot pin. At least a third link includes first and second ends, and a third contact face. The first, second, and at least third links are pivotally coupled end-to-end such that the first, second, and third contact faces define a circular opening. The circular opening is configured to receive a workpiece such that rotational force applied to the main body rotates the adaptor tool and the workpiece.

Abstract: A spark plug having a shell defining a cavity, an insulator disposed within the cavity, and an electrode at least partially encapsulated by the insulator. The electrode may be formed from a ruthenium (Ru) electrode material having a columnar grain structure. Further, the ruthenium (Ru) electrode material may have a purity greater than 99.90 wt. percentage.

Abstract: A combustor for a gas turbine engine includes a combustion chamber and a fuel igniter assembly. The combustion chamber is defined by an annular inner combustor liner and an annular outer combustor liner. The fuel igniter assembly is coupled to the combustor and extends radially outward from the outer combustor liner. The fuel igniter assembly includes an igniter housing configured to house a fuel igniter therein, and a heat-dissipating element coupled to the igniter housing. The heat-dissipating element includes a plurality of fins configured to dissipate heat from the fuel igniter assembly.

Abstract: A method and an assembly for sensing a process parameter are provided. The sensing assembly includes a base and a sensor assembly. The sensor assembly includes a sensing element, a first flow channel, and a second flow channel. The first flow channel includes a converging segment, a straightening segment, and a turning segment wherein the turning segment includes a turn radius configured to separate particles from a flow entering the turning segment and the second flow channel is configured to generate a low pressure area downstream of the sensing element. The sensing assembly also includes an extension member extending between the base and the sensor assembly.

Abstract: An embedded resistance temperature detector assembly comprises a first multi-conductor controller cable and a second multi-conductor controller cable, the first multi-conductor controller cable in electrical communication with a first resistance temperature detector, the second multi-conductor controller cable in electrical communication with a second resistance temperature detector, a first pair of thermocouple KN and KP conductors, a second pair of thermocouple KN and KP conductors, all of the controller cables in electrical communication with a controller, the first and second pair of thermocouple conductors in communication with conductors of at least one third multi-conductor cable.

Abstract: A method of assembling a mounting device for an electrical harness of a gas turbine engine is provided. The electrical harness has a wire bundle. The method includes providing a first shell and providing a second shell. The method further includes coupling the first shell to the second shell with the wire bundle disposed between the first shell and the second shell such that movement of the first shell and the second shell along the wire bundle is restricted.

Abstract: A heat exchanger assembly comprises a heat exchanger body including a first fluid circuit and a second fluid circuit. The first circuit includes a first bypass valve in flow communication with a first fluid circuit inlet channel. The first fluid circuit also includes a plurality of cooling channels in flow communication with the first bypass valve. The first bypass valve is configured to channel a first fluid to the plurality of cooling channels during a first mode of operation to facilitate reducing a temperature of the first fluid. The second fluid circuit includes a second bypass valve configured to facilitate a flow of a second fluid through at least a portion of the heat exchanger body during the first mode of operation.