Abstract: Methods for filling packagings with at least one medication includes receiving filling instructions for an order and operating an automated packaging station to fill a plurality of packagings making up an order. Operating the automated packaging station includes positioning a plurality of cassettes containing the medications needed for the order onto a feeder base at a single filling location, and moving each of the plurality of packagings to the filling location. The operation also includes actuating at least one of the cassettes at the feeder base simultaneously and according to the filling instructions when each packaging is located at the filling location. Automated packaging stations operable to perform the above filling instructions are also provided.

Abstract: A fully automated pharmaceutical product packaging machine is capable of selectively depositing one or more different solid pharmaceutical products into an individual cavity for each of a plurality of individual patient product package cavities. The system employs a plurality of solid pharmaceutical product dispensing canisters which are capable of selectively dispensing a pre-designated number of solid pharmaceutical products. The machine fills a template containing temporary storage cavities and the template is automatically positioned over a sheet of clear plastic material containing a plurality of cavities corresponding to the cavities in the template. A barrier between the cavities in the template and the sheet of clear plastic material is moved and the pharmaceuticals in the template cavities drop into the corresponding cavities in the clear plastic sheet of material.

Abstract: A supply group of a packing band from reels, with an automatic change of the reel for an object-packing machine, includes a supply conveyor along which the packing band runs, a device for transversally cutting the band located at a start of the supply conveyor, a device for supporting one reel of the band of slim packing material and a device for supporting a second reel of band of slim packing material. The group includes a first entry conveyor of the first band from the first reel to the supply conveyor, a second entrance conveyor of the second band from the second reel to the supply conveyor, a device for advancing for introducing or extracting the front end of the first band to or from the supply conveyor, and a device for advancing for introducing or extracting a front end of the second band into or from the supply conveyor.

Abstract: Method and apparatus for opening pairs of opposed reclined walls of a plurality of crates, comprises carrying a first stack to a first working station, raising opposed walls of the upper crate by rotation with respect to the bottom plane, raising the other two front walls by rotation, blocking at least one of the side walls to an adjacent side wall, horizontally transferring the open crate into a position where it is lowered onto an adjacent second stack opened crates.

Abstract: There is provided an improved sterilization wrap and a method for using the improved sterilization wrap to sterilize an article. The wrap is made of at least one sheet, and preferably two sheets, of sterilization material and in some embodiments, includes an additional sheet which may be made of an absorbent material. The sheet of absorbent material may have a smaller perimeter than at least one sheet of sterilization material. One side of at least one sheet of sterilization material includes a central portion. The absorbent material may be attached to the central portion of at least one sheet of sterilization material. The article to be sterilized is placed on the sterilization wrap and is then wrapped. The absorbent material provides sterility protection for the article in addition to the at least one sheet of sterilization material and also wicks moisture away from the article after sterilization has taken place.

Abstract: A system, software and related methods of enhanced pharmaceutical operations in long term care facilities are provided. An embodiment of a system includes a long-term care facility pharmacy group management server, long-term care facility pharmacy management software associated with the long-term care facility pharmacy group management server to manage pharmacological operations in a plurality of long-term care facilities, a plurality of pharmaceutical storage and electronic dispensing carts each positioned in a long-term care facility remote from the long-term care facility pharmacy group management server and in communication therewith, a remote pharmacy group server in communication with the long-term care facility pharmacy group management server, and a plurality of pharmaceutical prescription document processors each positioned in a long-term care facility and in communication with the remote pharmacy group server or the long-term care facility pharmacy group management server.

Abstract: A sealing device for sealing trays, the sealing device having a sealing-tool lower part and a sealing-tool upper part. The sealing-tool lower part includes a tray holder. The sealing-tool upper part includes a sealing plate and a cutting knife The tray holder includes a cutting channel into which the cutting knife can dip or, in other words, that may receive the cutting knife, when cutting a film lid for the tray from the film web, the film lid being sealed on the tray.

Abstract: According to one embodiment, a paper sheet processing apparatus includes a supply unit, a pick-up mechanism, an inspection device, a stacking device, and a wrapping device configured to wind a band around a stacked paper sheet bundle and wrap the stacked paper sheet bundle. The wrapping device includes a clamp mechanism configured to curve the stacked paper sheet bundle by pressing both side portions of the stacked paper sheet bundle, a band winding device configured to wind a wrapper band around the curved stacked paper sheet bundle, and a heater configured to heat-seal an end of the wrapper band. The clamp mechanism includes a press member configured to adjust a degree of curvature of the stacked paper sheet bundle.

Abstract: Filter media suitable for various applications and related components, systems, and methods associated therewith are described. The filter media may include a fiber web having a mixture comprising non-fibrillated synthetic fibers and fibrillated fibers, such as lyocell. The fiber web may also include multi-component fibers (e.g., bi-component fibers). In some embodiments, glass fibers are not incorporated into the fiber web.

Abstract: A filter device includes a lid (6) configured for detachable mounting to a filter housing, an annular filter element (2) mounted to the lid (6), a closure part (13) embodied as a separate component from the filter element and the lid (6) with the closure part (13) detachably secured to at least one of the lid (6) and the filter element (2).

Abstract: An air filter attachment apparatus for temporarily attaching a furnace-type air filter to a face of a box fan with a ferromagnetic box frame. The attachment apparatus comprises a plurality of magnetic flaps secured to respective top and side edges of the air filter, either directly or via a filter-receiving frame. The filter/frame is sized to approximate the face dimensions of the fan, and the flaps are foldable forwardly toward the fan to lie flat on top and side surface of the fan's metal box frame. Each flap includes magnetic attachment means to secure the flap to the fan.

Abstract: An electric motor-driven rotary disc cutter module for use in a cutterbar in an agricultural harvester. In one embodiment, each rotary disc module includes an electric motor driver for the rotary cutterhead. Individual cutterhead modules are staggered fore and aft along the cutterbar to provide continuous cutting across the lateral width of the cutterbar without requiring synchronized rotation of the cutterheads to prevent contact of the knives. This configuration allows for individual speed and/or rotational direction adjustment for each cutterhead to optimize crop cutting performance and/or crop movement within the header. A control system may be included to monitor performance and manage individual operation of the cutterhead modules.

Abstract: Snapping unit for heads of harvesting machines, including a pair of counter-rotating snapping rolls and a support and motion transmitting unit with which the snapping rolls are associated so as to cooperate with each other when placed into rotation around their longitudinal axis, each snapping roll including a body where a cylindrical rear portion and a frustoconical front portion are defined, the side wall of the body being provided on its outer surface with longitudinal helical grooves defining helical protrusions ending in corresponding helical ridges capable of penetrating the groove defined between the helical ridges of the adjacent roll during rotation of the two snapping rolls, wherein the helical grooves and, correspondingly, the helical protrusions and the respective helical ridges have a pitch at least equal to the total length of the corresponding roll and extend on at least part of the frustoconical portion.

Abstract: A compressor blade for use in a compressor section of a gas turbine engine, comprising: a martensitic stainless steel compressor blade and an abrasive coating having an anodic component. The compressor blade has a blade portion, a dovetail portion and a platform portion intermediate the blade portion and the dovetail portion, the blade portion terminating in a tip opposite the dovetail portion. A cobalt-based coating overlies at least the blade portion of the compressor blade. The cobalt-based coating comprises a cobalt based material that includes precipitates of tungsten carbide that provide erosion resistance and particles of a sacrificial metal-based material distributed through the cobalt-based coating that provide galvanic corrosion resistance to the system.

Abstract: In one embodiment, a system includes a turbine combustor of a turbine system with the turbine combustor at least partially enclosed within a compressor discharge casing. The turbine system also includes an exhaust gas recovery system that includes an exhaust gas recirculation duct. The exhaust gas recirculation duct is configured to recirculate exhaust gas from a downstream end of the turbine combustor to an upstream end of the turbine combustor. This exhaust gas recirculation duct is entirely enclosed within the compressor discharge casing.

Abstract: A combined cycle power plant with a gas and steam turbine system arranged on a single shaft and integrated with a cogeneration plant having a heat consumer such as a district heating system or industrial plant, including one or more steam extractions at an intermediate-pressure steam turbine that are arranged at the upper casing half-shell of the turbine and extraction steam lines that lead the extracted steam to heat exchangers of the cogeneration plant. The steam extraction outlets are arranged either singly at or near the uppermost point of the casing or in pairs to either side of the uppermost point of the casing. The specific arrangement of the extractions allows a floor-mounting of the single-shaft combined cycle power plant and as such a cost and space efficient realization of the power plant.

Abstract: A gas turbine engine includes a spool, a turbine coupled with the spool, a propulsor coupled to be rotated about an axis by the turbine through the spool and a gear assembly coupled between the propulsor and the spool such that rotation of the spool results in rotation of the propulsor at a different speed than the spool. The propulsor includes a hub and a row of propulsor blades that extends from the hub. Each of the propulsor blades has a span between a root at the hub and a tip, and a chord between a leading edge and a trailing edge such that the chord forms a stagger angle ? with the axis. The stagger angle ? is less than 62° at all positions along the span, with said hub being at 0% of the span and the tip being at 100% of the span.

Abstract: A clustered, fixed cant, throttleable rocket assembly is used to propel and a steer a vessel in terrestrial or extraterrestrial applications. The fixed cant of each of at least three individual rockets in the cluster provides the steering input to the overall assembly. More specifically, by changing the propellant flow rate to the individual rocket engines relative to one another, the overall thrust vector of the rocket assembly may be selected to provide a desired steering input to the vessel. A measured vessel orientation may be compared with a desired vessel orientation to determine what steering input is required to achieve the desired vessel orientation.

Abstract: A method for controlling ammonia generation in an exhaust gas feedstream output from an internal combustion engine equipped with an exhaust aftertreatment system having a first aftertreatment device includes executing an ammonia generation cycle to generate ammonia on the first aftertreatment device. The ammonia generation cycle includes monitoring an air-fuel ratio in the exhaust gas feedstream at a first location in the exhaust aftertreatment system, and monitoring an air-fuel ratio in the exhaust gas feedstream at a second location in the exhaust aftertreatment system. The air-fuel ratio at the first location is compared to the air-fuel ratio at the second location. If the air-fuel ratio at the second location is richer than the air-fuel ratio at the first location, operation of the engine is adjusted until the air-fuel ratio at the second location is equal to the air-fuel ratio at the first location.

Abstract: A method for heating a delivery system providing reducing agent to an exhaust gas treatment device of an internal combustion engine having electrical components, includes determining a temperature in the delivery system, determining thermal energy required for error-free operation of the delivery system in a time interval, and introducing the required thermal energy into the delivery system by operating the electrical components within the time interval. The electrical components are activated at a time offset of at least 30 seconds. The required energy is determined so that the quantity of reducing agent to be delivered hourly is provided in liquid form at least four times after the time interval. The method prevents overloading of an electrical system of a motor vehicle when heating the delivery system and prevents ice cavity formation in a reducing agent in a tank. A motor vehicle having a delivery system is also provided.

Abstract: An embodiment (control apparatus) for an internal combustion engine according to the present invention determines, based on an output value of the downstream air-fuel ratio sensor disposed downstream of a three-way catalyst, determines which air-fuel ratio request, a rich request or a lean request, is occurring. The control apparatus sets a target upstream air-fuel ratio to a target rich air-fuel ratio when the rich request is occurring, and sets the target upstream air-fuel ratio to a target lean air-fuel ratio when the lean request is occurring. Each of the target rich air-fuel ratio and the target lean air-fuel ratio is varied depending on an intake air amount. Further, the control apparatus increases a purge amount of an evaporated fuel as a magnitude (air-fuel ratio change amount ?AF, |afLean?afRich|) of a difference between the target rich air-fuel ratio and the target lean air-fuel ratio becomes larger.

Abstract: A pump component is removed from a port of a suction-side fluid cavity of a high-pressure fluid pump. The pump component performs a pump function for the high-pressure fluid pump. A primary coupler connects to the port. The pump component connects to the primary coupler. A diverter fluid passage diverts a low-pressure fluid from the primary coupler to an auxiliary fluid delivery system. The primary coupler communicates the low-pressure fluid through the pump component and primary coupler to the port.

Abstract: An exhaust purifier purifies an exhaust gas of an internal combustion engine used in an exhaust purification system that has an addition unit and a catalyst. The addition unit, disposed in an exhaust pipe of the exhaust purification system, adds an additive agent to the exhaust pipe, and the catalyst, disposed on a downstream side of the addition unit in the exhaust pipe, purifies the exhaust gas with the additive agent added by the addition unit and stored therein. The exhaust purifier determines a total amount of the additive agent to be added, and calculates an exhaust flow velocity of the exhaust gas. The purifier controls the addition unit to enable the additive agent to be added to the exhaust pipe by the total amount determined, such that the purifier controls the addition unit to decrease a per-unit-time addition amount of the additive agent as the exhaust flow velocity decreases.

Abstract: An exhaust system for a vehicular lean burn internal combustion engine that emits oxides of nitrogen (NOx) and particulate matter (PM) is disclosed. The system comprises a NOx reduction catalyst for reducing NOx in the presence of a reductant, means for introducing reductant into a flowing exhaust gas and a source of hydrocarbon reductant, a nitrogenous reductant, and/or hydrogen, a filter for removing PM from exhaust gas flowing in the exhaust system and a low pressure exhaust gas recirculation (EGR) circuit for connecting the exhaust system downstream of the filter to an air intake of the engine. The EGR circuit comprises a IMOx adsorber catalyst (NAC) comprising a NO adsorbent.

Abstract: An apparatus is disclosed. The apparatus comprises a lean-burn internal combustion engine, engine management means and an exhaust system for treating exhaust gas of the engine. The exhaust system comprises a first oxidation catalyst disposed on a first honeycomb monolith substrate. The first oxidation catalyst comprises platinum supported on a first metal oxide support comprising at least one reducible oxide, and is substantially free of alkali metals and alkaline earth metals. The engine management means is arranged, when in use, intermittently to modulate the lambda composition of the exhaust gas entering the first oxidation catalyst to a rich lambda composition.

Abstract: An excessively large electric current is suppressed from flowing to an electrode. A particulate matter processing apparatus in which a processing part with an electrode installed therein is arranged in an exhaust passage of an internal combustion engine, wherein particulate matter is caused to aggregate by generating a potential difference between the electrode and the processing part, is provided with a power supply that is connected to the electrode and applies a voltage thereto, a current detection device that detects an electric current which passes through the electrode, an air fuel ratio detection device that detects or estimates an air fuel ratio of an exhaust gas which flows through the exhaust passage, and a voltage control device that makes the voltage applied to the electrode from the power supply smaller in cases where the air fuel ratio detected by the air fuel ratio detection device is a rich air fuel ratio, than in cases where it is a stoichiometric air fuel ratio or a lean air fuel ratio.

Abstract: Aggregation of particulate matter is facilitated. Provision is made for an electrode that is arranged in an exhaust passage of an internal combustion engine with a voltage to be applied thereto being able to be changed, a detection device that detects an electric current passing through the electrode, a determination device that determines whether a pulse current has been generated in the electric current detected by the detection device, and a control device that reduces the voltage to be applied more than that at this time in cases where a determination has been made by the determination device that a pulse current has been generated.

Abstract: An exhaust system for an agricultural vehicle is provided that includes a mixer configured to receive a spray of diesel exhaust fluid along a longitudinal axis of the mixer and an exhaust flow along a direction cross-wise to the longitudinal axis of the mixer. Additionally, the mixer is configured to mix the diesel exhaust fluid with the exhaust gas. Furthermore, the mixer is configured to discharge the exhaust gas along the longitudinal axis of the mixer.

Abstract: An energy storage system is disclosed for use in a hydraulic system for moving a structural member such as a boom assembly. The system features at least one work cylinder and an additional energy storage cylinder that assists in raising and lowering functions by storing and withdrawing pressurized fluid from an accumulator. The pressurized fluid in the accumulator may be used for raising operations as well as digging and tamping operations. Further, the energy recovery features may be selectively disconnected during either a raising or lowering operation.

Abstract: An air handling system comprising an air guide in the form of a convergent divergent shroud and/or diffuser defining a path along which air can flow, such as to generate one or more regions of reduced pressure and/or increased mass flow rate of air within the guide in response to the passage of air through the guide, and a manifold extending from the guide and having an inlet and an exhaust, the exhaust being in fluid communication with the one or more regions of reduced pressure and/or increased mass flow rate and the inlet being in fluid communication with an interior of an air handling unit such as a condenser or air conditioning unit.

Abstract: Systems, methods and devices for optimizing thermal efficiency within a gas compression system are described herein. In some embodiments, a device can include a first hydraulic cylinder, a second hydraulic cylinder, and a hydraulic actuator. The first hydraulic cylinder has a first working piston disposed therein for reciprocating movement in the first hydraulic cylinder and which divides the first hydraulic cylinder into a first hydraulic chamber and a second hydraulic chamber. The second hydraulic cylinder has a second working piston disposed therein for reciprocating movement in the second hydraulic cylinder and which divides the second hydraulic cylinder into a third hydraulic chamber and a fourth hydraulic chamber. The hydraulic actuator can be coupled to the first or second working piston, and is operable to move the first and second working pistons in a first direction and a second direction such that volume in the hydraulic chambers are reduced accordingly.

Abstract: The invention relates to a device for transferring a hydraulic working pressure in a pressure fluid for pressure actuating hydraulic units of deep sea systems, in particular deepwater wells, wherein a first pressure chamber (19) for the pressure fluid, a displaceable piston arrangement (9, 11, 13) for changing the volume of said pressure chamber (19), and at least one second pressure chamber (21) are present in a cylinder arrangement (1), wherein the surrounding pressure of the deep sea can be applied to the second pressure chamber for a displacement of the piston arrangement (9, 11, 13) generating the working pressure in the first pressure chamber (19), characterized in that a pressure accumulator (37) is associated with the cylinder arrangement (1), the displaceable separating element (41) of said pressure accumulator separating a chamber (45) connected to the seawater from an actuating chamber (43), which contains an actuating fluid and is connected to the second pressure chamber (21) in order to apply the

Abstract: A structure for attaching a motor cylinder device to the body of the vehicle, said vehicle brake system including: an input device via which an operator inputs brake operations; and a motor cylinder device that generates hydraulic brake pressure on the basis of electrical signals based on said brake operations. Said motor cylinder device has: an electric motor that operates on the basis of electrical signals; a driving-force transmission unit that transmits driving force from the electric motor; and a cylinder mechanism that applies pressure to a brake fluid by moving a piston axially by means of the driving force transmitted by the driving-force transmission unit. A mount for attaching the motor cylinder device to the body of the vehicle is provided near the center of gravity of the motor cylinder device. This makes it possible to minimize displacement of the electric brake actuator when subjected to vibration.

Abstract: An object of this invention is to accurately control an exhaust air-fuel ratio, even when a WGV (waste gate valve) is operating. An ECU 60 is equipped with a turbine passing path constant At that corresponds to a time required for exhaust gas to flow to an air-fuel ratio sensor 56 via a turbine 36a of a turbosupercharger 36, and a bypass path constant Ab that corresponds to a time required for exhaust gas to flow to the air-fuel ratio sensor 56 via a bypass passage 38. The ECU 60 calculates first and second fuel injection correction amounts ?t and ?b in which the path constants At and Ab are reflected, respectively. When executing air-fuel ratio feedback control, the ECU 60 selects one of the fuel injection correction amounts ?t and ?b based on at least an open or closed state of the WGV 40, and corrects a fuel injection amount using the selected fuel injection correction amount.

Abstract: Methods and systems for controlling operation of exhaust of an engine including a particulate filter are provided. One example method includes generating vacuum during engine operation, and storing the vacuum. The method further includes, during or after engine shutdown, drawing ambient air through the particulate filter via the vacuum.

Abstract: One embodiment is an apparatus including a bearing housing mechanically coupled to a compressor housing on a first side and to a turbine housing on a second side. The compressor housing has a compressor outlet and the turbine housing has a fluid outlet. A first flow path fluidly connects the compressor outlet to a first circumferential channel formed between the bearing housing and the compressor housing. A fifth flow path fluidly connects the fluid outlet to a second circumferential channel formed between the bearing housing and the turbine housing. A third fluid flow path fluidly connects the first circumferential channel to the second circumferential channel. The apparatus further includes a fluid conduit that fluidly connects the fluid outlet to an actuator.

Abstract: An exhaust-gas turbocharger includes a turbine housing and a wastegate which is disposed in the turbine housing. The turbine housing is water-cooled. An electric wastegate actuator is an integrated constituent part of the turbine housing.

Abstract: An engine assembly may include an engine structure, an exhaust system, an intake system, a valvetrain assembly and an exhaust gas recirculation system. The engine structure may define a combustion chamber and intake and exhaust ports in communication with the combustion chamber. The exhaust system may include an exhaust conduit in communication with exhaust port. The intake system may include a turbocharger in communication with the exhaust conduit and the intake port. The valvetrain assembly may provide internal recirculation of exhaust gas within the combustion chamber. The exhaust gas recirculation system may include an EGR line extending from the exhaust conduit at a location between the turbocharger and an outlet of the exhaust conduit to the intake system and may provide communication between the intake and exhaust systems.

Abstract: A variable flow valve with position feedback is disclosed. The variable flow valve includes a housing having an inlet port and a discharge port and one or more control ports, and also includes a piston connected to a primary valve to open and close fluid communication between an inlet port and a discharge port of the housing. The housing and the piston intermesh to define an inner chamber and an outer chamber each in fluid communication with its own control port. A control port valve opens and closes at least one of the control ports to control access to a source of pressure change. A position sensor is part of the position feedback and communicates the position of the primary valve, relative to the discharge port, to a controller that operates the control port valve to hold the primary valve in a position where the discharge port is partially open.

Abstract: A turbocharger system comprises: a turbocharger having a rotatable shaft arranged to be driven by exhaust gases from an associated engine and coupled to a turbocharger electrical machine; and a controller configured to switch the turbocharger electrical machine between a first mode in which electrical energy is drawn from the turbocharger electrical machine acting as a generator and a second mode in which energy is provided to the turbocharger electrical machine to act as a motor. The controller may be configured to switch between the first mode and the second mode based upon the power factor for the electrical energy generated by or supplied to at least one of: the turbocharger electrical machine; and an engine electrical machine coupled to the associated engine.

Abstract: Various methods and systems are provided for controlling a hydraulically actuated engine valve. In one example, a system includes a hydraulically actuated engine valve and an engine having a first hydraulic system. The system further includes a second hydraulic system, which is separate from the first hydraulic system, and where the second hydraulic system provides fluid pressure to actuate the valve.

Abstract: An energy conversion system includes a heat to power conversion unit to convert thermal energy of a high temperature fluid into electricity. A space heating element is connected to a heated fluid storage unit to provide heating. A heat driven cooling element is connected to the heated fluid storage unit to provide refrigerated fluid to provide cooling. An array of sensors is distributed to measure system parameters and collect data. A central processing unit is coupled to the array of sensors to process data from the array of sensors, electrical grid data from a utilities operator and data history on water, heat, and power used to calculate operation parameters for components of the energy conversion system. A memory unit coupled to the central processing unit to store processing instructions to be executed by the central processing unit and to store the data history on water, heat, and power used.

Abstract: Embodiments of the invention relate to systems and methods for storing thermal energy from working fluid heated by a high-temperature heat source and retrieving the thermal energy. The heated working fluid is in thermal communication with heat exchanger elements that can efficiently store thermal energy by, for example, phase change in one or more metal alloys.

Abstract: A transient liquid pressure power generation system and associated devices and methods is disclosed. The system can include a liquid source and a transient pressure drive device fluidly coupled to the liquid source to receive liquid from the liquid source. The transient pressure drive device can include a drive component, and a transient wave or pressure producing element to cause a high pressure transient wave in the liquid traveling toward the liquid source to operate the drive component. Additionally, the system can include a heat source fluidly coupled to the transient pressure drive device and the liquid source to receive liquid from the transient pressure drive device and heat liquid returning to the liquid source.

Abstract: Work is produced from heat in a continuous cycle. A flow of first working fluid is provided to a high pressure boiler to produce a flow of first working fluid vapor. A second working fluid in vaporous form is compressed, after which a third working fluid is formed by mixing the first working fluid vapor and the second working fluid. Thermal energy is transferred directly between the first and second working fluids in the mixing chamber exclusive of any intervening structure. A refrigeration loop containing a fourth working fluid extracts thermal energy from a low grade thermal energy source and moves the thermal energy to the first working fluid and/or the second working fluid.

Abstract: An example gas turbine engine includes a turbine and first and second spools coaxial with one another. The first spool is arranged within the second spool and extends between forward and aft ends. The aft end extends axially beyond the second spool and supports the turbine. A housing is arranged downstream from the turbine. First and second bearings are mounted to the aft end of the first spool and supported by the housing portion.

Abstract: A gas fuel turbine engine may include a gaseous pilot fuel supply, a first main fuel supply, and a second main fuel supply. The first main fuel supply may provide gaseous fuel to a first plurality of fuel injectors, and the second main fuel supply may provide gaseous fuel to a second plurality of fuel injectors. The turbine engine may also include a flow restriction provided in the first main fuel supply. The second main fuel supply may be free of the flow restriction.

Abstract: A turbine engine combustor wall includes support shell and a heat shield. The support shell includes shell quench apertures, first impingement apertures, and second impingement apertures. The combustor heat shield includes shield quench apertures fluidly coupled with the shell quench apertures, first effusion apertures fluidly coupled with the first impingement apertures, and second effusion apertures fluidly coupled with the second impingement apertures. The shield quench apertures and the first effusion apertures are configured in a first axial region of the heat shield, and the second effusion apertures are configured in a second axial region of the heat shield located axially between the first axial region and a downstream end of the heat shield. A density of the first effusion apertures in the first axial region is greater than a density of the second effusion apertures in the second axial region.

Abstract: Systems and methods for operating a turbine engine having a plurality of fuel injectors arranged circumferentially in a combustor, with each fuel injector having a main fuel supply and a pilot fuel supply, includes supplying fuel to the plurality of fuel injectors through the main fuel supply to create a circumferential thermal gradient in the combustor.

Abstract: A system for de-icing a gas turbine engine is provided. A manifold is coupled to an inlet screen. A first conduit is coupled to a stage of the compressor and a first input of a mixing component. A second conduit is coupled to the exhaust and a second input of the mixing component. The second conduit being adapted to extract exhaust gases without increasing the pressure at the exhaust. A third conduit is coupled to the output of the mixing component and the manifold. A method for de-icing a gas turbine engine inlet screen includes determining a current temperature at the inlet screen, and determining a desired temperature at the inlet screen. If the current temperature at the inlet screen is less than the desired temperature at the inlet screen first flow rate of an air-exhaust mixture necessary to achieve the desired inlet screen temperature is calculated.