Abstract: A universal door skin blank comprises an exterior side and an interior side for securing to a frame member, first and second molded, spaced stiles, and a flat planar portion disposed between the stiles and lying on a plane spaced from the plane of the stiles. An interface portion is disposed between and contiguous with the stiles and the flat planar portion. The invention also relates to a door having at least one universal door skin blank, with at least two separately formed rails secured to the planar portion of the blank at opposite ends thereof.

Abstract: The invention relates to a method for the manufacture of chipboard comprising a centre layer (18) of coarse chips and outer layers (20) of chips whose fibres are oriented in the plane of the board. In order to be able to reduce the density of the finished board while retaining the intrinsic characteristic profile of the board, it is proposed in accordance with the invention that the chips used to compose the centre layer (18) will comprise end-grain cut, flake-like chips (22) whose fibres are oriented in the thickness direction (24) of the chips, the chip fibres in the centre layer being oriented substantially transversely to the plane of the chipboard. The invention also relates to chipboard manufactured in accordance with the method.

Abstract: A treatment or manufacturing installation in a working area, comprising at least one machine having at least one workstation, particularly a beverage bottle treatment or manufacturing machine, which is fixedly disposed on a floor area, and comprising a machine protection device which comprises panes which cover at least the workstation in a supporting frame which comprises vertical pillars and which defines an area.

Abstract: A string (12) of pocketed coil springs (14) is formed by inserting compressed springs between upper and lower plies of a folded, preferably thermally weldable fabric (16). The springs are maintaned in a compressed configuration while a longitudinal seam (54) joins the free edges of the thermally welded fabric (16) together. Subsequently, the compressed springs (14) are allowed to relax into an expanded configuration after which a transverse seam (80) is formed in the fabric (16) between the adjacent springs (14) thereby encapsulating each spring (14) within a fabric pocket (86). The string (12) of pocketed coil springs (14) is advantageously formed without the need for reorienting the springs (14) after being inserted between the plies (24,26) of the fabric (16) and thereby avoiding the disadvantages and complications associated with turning or reorienting the pocketed coil spring (14).

Abstract: Automated apparatus for filling of a bag with a loose commodity comprises a bag filling station for dispensing commodity into a bag; a wicket for feeding a stacked and interconnected array of empty bags; and a conveyor for removing filled bags from the filling station. Reciprocating clamps grip the open mouths of the filled bags, and transfer the filled bags away from the filling station, with a subsequent bag being drawn into appropriate position for filling by means of the connection formed between the contacting bags.

Abstract: The present invention concerns a method and a device for sealing packages (1) during continuous movement. A row of packages (1) is driven by means of a motor (8) through a sealing station comprising an inductor (4). The inductor (4) is driven in a pulse form by means of an IH (induction heating) inductor (5). A PLC system (6) is used to control the IH generator (5). The PLC system (6) receives information regarding speed and position of the packages (1) by means of a motor drive (9) and an encoder (7), respectively.

Abstract: A method for manufacturing bag packages, in which netting material of bags to be formed is connected to at least two foil strips which are each provided with a printing repeating in the longitudinal direction of the strip, with the foil strips being supplied in a coupled manner from one stock. The foil strips are preferably obtained from a foil stock comprising a single strip of foil with at least two repeating printing patterns with concurrent repeat which are applied next to each other, with the single strip being divided into sub-strips each bearing a repeating printing pattern.

Abstract: A magnetic equine hood for applying magnetic therapy to an equine neck, cervical vertebrae, atlas, axis, head, back, and shoulders is disclosed. A head portion shaped to substantially conform to an equine neck is attached to a neck portion defining a volume substantially conforming to an equine neck. Magnetic strips are strategically coupled to the neck portion to create magnetic fields radiating towards areas where therapeutic treatment is desired to increase circulation in those areas. For instance, magnetic strips may be detachably coupled to the neck portion on either side of a cervical vertebrae. Additionally, an optional atlas and axis magnetic strip can be detachably coupled in position along the equine neck to create a magnetic field radiating towards the equine atlas, axis, and poll. Moreover, the hood can be permanently or detachably coupled to an equine blanket that may also use magnetic therapy.

Abstract: A riding stirrup (10) includes a hanger rod (11) for connecting the stirrup to a saddle, and a stirrup loop (12) connected to the hanger rod. The stirrup loop (12) defines a stirrup opening (14) through which a rider may extend their foot when the rider is sitting in the saddle. The stirrup loop (12) also includes an elongated base support tread (17) positioned generally at the bottom of the loop. The base support tread (17) extends at a slant with respect to a stirrup centerline (CL) which extends perpendicular to the longitudinal axis of the hanger rod (11), through a midpoint of the rod, and through the base support tread. This slant places the distance between an outer tread section (21) and the hanger rod (11) greater than the distance between an inner tread section (20) and the hanger rod.

Abstract: An improved equestrian saddle creates an angle of separation between the stirrup and the body of the horse to aid the insertion of the rider's foot. A fender conforms to the shape of an attached molded plate. As a result, the stirrup strap is twisted, turning the associated stirrup away from the horse. The molded plate is intended to be shaped by a user, maintain its shape during normal use conditions, and be re-shaped by the user at will. Alternatively, the plate could be molded into a permanent shape and attached to the fender. In yet another embodiment, the plate could be shaped by the user and then made rigid by the user. The plate is preferably inserted into a pocket in the fender structure.

Abstract: An air blower apparatus for use in an inspection apparatus includes an air blowing device for blowing air via an air filter to a recording medium and a recording apparatus. The air blowing device includes a fan unit provided above the recording medium, and a fan unit housing provided above the fan unit. The fan unit housing includes a first buffer space having an inlet port directed substantially downwardly toward the recording medium, and the first buffer space temporarily accumulates air inhaled from the inlet port. The fan unit inhales air from the inlet port that faces the first buffer space, discharges inhaled air at a substantially constant air flow rate to deliver the air via an air filter from an outlet port to the recording medium by a fan, and the discharged air is reflected on the recording medium and returns to the inlet port.

Abstract: A filter element includes a region of filter media and at least one end cap secured to the filter media. The end cap includes a protrusion that is shaped in order to mate with another filter element. The shaped end cap can act as a centering device. A filter assembly can be constructed including a first filter element and a second filter element. Each of the first and second filter elements has an end cap that includes a projection and recess arrangement. A seal is formed between the first filter element and the second filter element by compression of the two elements together with an engagement or inter-nesting of the projection and recess arrangement of the first filter element with the projection and recess arrangement of the second filter element. The filter element assembly is useable in a variety of systems including a gas turbine air intake system.

Abstract: The present invention relates to a separator made of a porous material intended to treat gaseous effluents which contain particles whose size is substantially less than one micrometer or of the order of one micrometer and comprising channels (2).

Abstract: A filter protection apparatus includes a frame of a closed curve defining an inner space isolated from surroundings, the frame having a shape of a filter securing part for securing an air filter, an attaching part for attaching the frame to a filter securing part, and a protection part, which is coupled on the inner surface of the frame to occupy the inner space with a plurality of minute holes through which air passes, for protecting the filter from damage. In operation, the protection part is able to prevent damage to the filter that may be caused by work instruments during maintenance work.

Abstract: A zero turning radius power lawn mower for operation by a standing occupant includes first and second independently driven and controlled rear drive wheels mounted on separate drive axles. A riding platform for supporting the standing occupant or operator is located between the first and second rear drive wheels. The rear drive wheels are independently driveable in both the forward and reverse directions at variable speeds so as to allow for substantially zero radius turning of the mower about a central turning point. The riding platform is positioned near this turning point or axis so that the standing occupant remains substantially unaffected by centrifugal force created during approximate zero radius is turning of the mower thereby allowing the mower to take such turns at higher speeds. The low center of gravity created by the position of the riding platform for the standing operator also results in the mower having improved traction and being less likely to pop “wheelies” upon acceleration.

Abstract: A device and method of harvesting a crop using positive and negative air pressure that is produced with in a partially closed area. Air flow that is produced by the positive and negative air pressure severs the crop from the remainder of the plant. A vacuum is introduced into one or more collection chambers. Air is introduced into the collection chamber by the application of positive air pressure. The negative pressure, or vacuum, is applied to the collection chamber through vacuum conduits or tubes that communicate with one or more collection ports. A crop, such as a cotton boll, is exposed to the collection port, and is pulled from a plant and harvested by vacuum, and is transported by the vacuum conduits or tubes to a hopper or other collection area. The geometry of the collection chamber facilitates harvesting of the crop.

Abstract: The invention relates to the use of a cutting cylinder unit and to a cutting device for shaping a plant, such as a boxwood bush. The cutting device comprises at least one cutting cylinder unit. The cutting cylinder unit comprises a cutting cylinder with a surface of revolution which is rotationally symmetrical with respect to a cylinder centre axis and with cutting members provided along the said surface of revolution; a cylinder drive for driving the cutting cylinder in rotation about the cylinder centre axis; and a cutting edge which is provided along the outside of the surface of revolution for interacting in a cutting manner with the cutting members. The surface of revolution and the cutting edge, as seen in the direction of the cylinder centre axis, have corresponding curvatures. This curvature is substantially matched to a predetermined desired shape of the plant.

Abstract: A bale unloading arrangement of a large round baler includes a bale take-up device mounted to a carrier which is in turn mounted to the axle of the baler for vertical pivoting movement beneath the baling chamber of the baler. A spring is mounted between the carrier and the axle for keeping the carrier in an elevated position until a completed bale is discharged onto the carrier. The carrier is shaped such that the bale take-up device, which is mounted for movement along the carrier, moves down the carrier to the rear and into a position for gently depositing the bale on the ground. The bale take-up device includes an upper bale-receiving structure that may be selectively pivoted about a fore-and-aft axis so as to deposit a bale on its end, and the carrier is mounted for being shifted sideways so that a bale deposited in this manner may be deposited outside the path traveled by the baler.

Abstract: A texturing machine for producing a crimped yarn and which has a plurality of serially arranged yarn processing units leading to a takeup device. A threading device is provided for threading a yarn for the first time before the start of a process. For this purpose, the threading device comprises at least one guide tube and an air injector connected thereto, with the guide tube including a suction inlet for receiving the yarn. In accordance with the invention, a cutting device is arranged in the region of the suction inlet of the guide tube, with the cutting device cutting the yarn while being threaded into the suction inlet.

Abstract: An open-end spinning device has a spinning rotor (2) with a rotor groove (25) at its greatest inside diameter in which fibers are collected. A yarn shank (27) extending from a yarn withdrawal nozzle to the rotor groove (25) is curved in the vicinity of the rotor groove (25) counter to the direction of rotor rotation during the spinning process forming a lagging tie-up zone whereat yarn formation takes place. A rotor insert (18) is rotatably supported within the spinning rotor coaxially to the rotor axis. The rotor insert (18) can be caused to rotate in a contactless manner by the rotation of the spinning rotor. The rotor insert (18) comprises a yarn guide conduit (20) that receives the yarn shank (27) to effect a retardation of the rotor insert (18) during normal spinning operation, which significantly improves the stability of the spinning process over known open-end spinning devices.

Abstract: An open-end spinning device comprises a spinning rotor (21) rotating in a rotor housing with a spinning insert (24) supported rotatably with respect to the spinning rotor (21) coaxially to the rotor axis (33). The spinning insert (24) can be caused to rotate as a function of the rotary motion of the spinning rotor (21) via a contactless entrainment of the spinning insert (24) by means of permanent magnets (32) attached to the spinning insert (24). In this manner a simple and reliable entrainment and an automatic adjusting of the rotational speed of the spinning insert (24) in the spinning rotor (21) are achieved.

Abstract: To provide a cable or the like protection and guide device that does not disperse dust particles such as wear particles generated by slide or friction between a cable or the like and link frame bodies. A number of link frame bodies (11) articulably connected to each other in the longitudinal direction of the device in a state where a cable or the like (14) are accommodated and hermetically sealed, each comprise a pair of link plate (23) disposed on both sides of the cable or the like, and connecting rods (22, 24) bridged across the link plates on the bend outer peripheral side and on the bend inner peripheral side, respectively. Between at least the bend outer peripheral side of the link plate and the connecting rod (24) bridged on the bend outer peripheral side is openably provided a sealing structure by concave and convex fitting (48, 49, 148, 149, 148, 149).

Abstract: A power system includes a device for extracting energy from a hot gas stream to power a driveshaft. An evaporative duplex counterheat exchanger is disposed in flow communication with the energy extracting device. The duplex exchanger includes a first heat exchanger having a first main flow channel, and a counterheat channel joined in flow communication therewith. A second heat exchanger includes a second main flow channel adjacent the counterheat channel. And, a evaporative fluid is injected into the counterheat channel to evaporatively cool the flow through both main flow channels.

Abstract: Method and arrangement for providing a liquid fuel rocket engine member (10). The member has a load bearing wall structure (14) having a plurality of cooling channels (11). For improving the heat transfer, a material with a higher thermal conductivity than the load bearing wall structure (14) is applied to the wall structure.

Abstract: Method and arrangement for providing a liquid fuel rocket engine member having a load bearing wall structure (11,14) including a plurality of cooling channels (11) for handling a coolant flow. Each cooling channel (11) is provided with a flow guiding surface (15) extending at an angle to the cooling channel axis, for providing the axial coolant flow with an added flow component in the radial direction.

Abstract: Method and arrangement for providing an outlet nozzle (10) for use in a liquid fuel rocket engine. The nozzle forms a body of revolution having an axis (11) of revolution and a cross section that varies in diameter along said axis. The nozzle has a wall structure having a plurality of mutually adjacent cooling channels, helically extending substantially in parallel from the inlet end (13) of the nozzle to its outlet end (14). The nozzle includes at least two longitudinally arranged sections (10a,10b,10c). A shift between a positive and a negative channel angle in the transition from one section to an adjacent section balances any roll momentum generated by friction of rocket exhausts against the nozzle wall.

Abstract: A device for exhaust gas after treatment of motor vehicles has a pump device for supplying a solution to the exhaust gas manifold. The pump device is a metering pump having a connecting part that opens into the exhaust gas manifold. The pump device has a piston and a piezo element for actuating the piston. The pump device has a housing provided with a housing chamber. The connecting part is arranged in the housing chamber that is located at an end face of the housing. The pump device has a pressure chamber for receiving the solution. A first check valve closes off the pressure chamber relative to the connecting part. The housing of the pump device has a supply line, and the piston sucks in the solution from the supply line. The pump device has a second check valve for closing off the supply line.

Abstract: The invention relates to a method for purifying the exhaust gas from an internal combustion engine which is operated under lambda-based closed loop control and which has an exhaust gas tract in which is located a catalytic converter, whereby a pre-converter lambda value for the exhaust gas is continuously sensed upstream of the catalytic converter, from which a pre-converter lambda signal is generated, and this pre-converter lambda signal is used as the reference variable for the lambda control loop, and a post-converter lambda value for the exhaust gas is continuously sensed downstream from the converter, from which a post-converter lambda signal is generated, this being a monotonically decreasing function of the lambda value for the exhaust gas downstream from the catalytic converter, and where the post-converter lambda signal is used in a trimming control loop to apply a correction to the lambda control loop, whereby a measurement signal is generated which, at least below a certain value of lambda close to

Abstract: Vehicle powered by a combustion engine having an exhaust pipe, a turbine housing connected to the exhaust pipe which exhibits an inlet opening, an outlet opening, a chamber located between the inlet opening and outlet opening in which a turbine wheel is rotatably arranged on a rotational shaft which is mounted in bearings in the housing and extends through a through-hole in the chamber. An injector is provided for injecting urea while the combustion engine is in a predetermined operating conditions into exhaust gases generated by the combustion engine.

Abstract: Method and arrangement for providing a compressed air system in a vehicle including a compressor (2) for generating compressed air and a connection (11) for feeding compressed air generated by the compressor (2) to the remaining compressed air system (1) in the vehicle. An oxidation catalyst (10) which is adapted for purifying the generated compressed air in direct connection with an outlet of the compressor (2), and that the oxidation catalyst (10) is connected to the remaining compressed air system (1).

Abstract: A system for aftertreatment of diesel engine exhaust on a vehicle which is equipped for dynamic braking, using the electrical power generated by the dynamic braking to energize a resistor bank which incinerates particulate matter which has been collected in a particulate matter filter, thereby regenerating the filter.

Abstract: The invention relates to a method and an arrangement for controlling a drive unit (1), especially of a vehicle, having a combustion engine (5). The method and arrangement make possible a correct charge control when utilizing a secondary air charger (10) as well as make possible a diagnosis of the secondary air charger (10). Secondary air is blown into an exhaust-gas system (15) of the combustion engine (5) via the secondary air charger (10). The secondary air charger (10) is driven by a pressure drop across an actuating element (20) for adjusting an air supply to the engine (5). The actuating element (20) is driven for adjusting an air supply to the engine (5) corrected in dependence upon an air mass flow driving a turbine (25) of the secondary air charger (10).

Abstract: A fuel injection control device includes an exhaust purification device for purifying an exhaust gas by catalytic action, an exhaust gas-temperature detection unit for detecting exhaust gas temperature, and a determination unit for determining the amount of the basic fuel injection and basic fuel injection timing from the operational status of a combustion engine, and a control unit for controlling the amount of the fuel injection and fuel injection timing. The control unit retards the fuel injection timing from the basic fuel injection timing when the exhaust gas temperature is lower than the temperature required for the catalytic activation of the exhaust purification device. The control unit also increases the amount of the fuel injection compared to the amount of the basic fuel injection to compensate for the loss of the torque output caused by the retarded fuel injection timing.

Abstract: A method and apparatus for initiating regeneration of a particulate matter (PM) filter in an exhaust system in an internal combustion engine. The method and apparatus includes determining a change in pressure of exhaust gases passing through the PM filter, and responsively varying an opening of an intake valve in fluid communication with a combustion chamber.

Abstract: Diesel engine with unit injectors and a catalytic converter arranged in the engine exhaust system, for reaction with uncombusted fuel. The injectors have spill valves, which in their closed position build up pressure in the injectors, and needle control valves, which in their closed position keep the needle valves of the injectors closed and which, when they are open, open the needle valves. The unit injectors have pump plungers, which are driven by individual cam elements whit a cam curve shaped so that a pressure is maintained in the injects for so long a period during one cycle that injection of fuel is permitted at least when an associated exhaust valve in the combustion chamber begins to open so late during the expansion stroke and temperature drop, that fuel after injection is not combusted in the cylinder but reaches the catalytic converted uncombusted.

Abstract: An exhaust passageway of an engine is provided with a NOx storage-reduction catalyst for trapping and storing NOx from an exhaust gas lean of a stoichiometric air-fuel ratio. When the storage of the NOx in the catalyst becomes large, the engine is operated at a rich air-fuel ratio for a short time so that NOx is released from the catalyst and is removed by reduction. An electronic unit of the engine estimates the amount of storage of NOx in the catalyst through the use of NOx counters that are incremented at a predetermined rate during a lean air-fuel ratio operation of the engine, and that are decremented at a predetermined rate during a rich air-fuel ratio operation of the engine. Independent NOx counters are provided for at least two divided portions of the catalyst in a one-to-one correspondence.

Abstract: A method of removing sulfur from a NOx-trap composition positioned downstream and/or on an electric heater in a diesel exhaust system comprises the step of periodically heating the electric heater when the exhaust gas composition is lean, thereby to desorb SOx adsorbed on the NOx trap composition. An exhaust system for carrying out the method comprises an electric heater, a NOx-trap composition positioned downstream and/or on the electric heater and means for controlling the electric heater to periodically heat the NOx-trap composition when the exhaust gas composition is lean, thereby to desorb SOx adsorbed on the NOx-trap composition.

Abstract: A device is provided for the exhaust gas treatment of a combustion system, e.g., a diesel combustion system. The device has a first storage unit for storing at least one urea-water solution, and an exhaust gas treatment is implemented without great expenditure. According to the present invention, this result is achieved by the urea-water solution including at least one additive for chemically influencing the urea-water solution.

Abstract: An exhaust valve downstream of a diesel engine splits exhaust gasses between two catalysts. In one position, most of the exhaust gasses go to a first catalyst, and the remaining exhaust gasses, along with injected reductant go to a second catalyst. In a second position, most of the exhaust gasses go to the second catalyst, and the remaining exhaust gasses, along with injected reductant go to the first catalyst. In this way, a reduced cost system is achieved.

Abstract: A filter (41) traps particulate matter contained in the exhaust gas of an engine (1). The filter (41) is regenerated by burning the trapped particulate matter by raising the temperature of the filter (41). When regeneration conditions are satisfied, a controller (31) raises the exhaust gas temperature to a first target exhaust gas temperature via an exhaust gas temperature adjusting mechanism (10) (S39), and burns the trapped particulate matter to regenerate the filter (41). When the engine (1) has rapidly decelerated during regeneration, the controller (31) decreases the exhaust gas temperature to a second target exhaust gas temperature lower than the first target exhaust gas temperature (S44, S45), and increases the exhaust gas flow rate (S52), thereby preventing the filter (41) from exceeding an upper limiting temperature.

Abstract: A maritime energy generating device comprising at least one windmill mounted on a floating foundation, said at least one windmill featuring a machine compartment (4) mounted at the top of a tower (2) and said foundation being fixed to the bottom of a sea or lake by a connection and comprising at least two tanks and at least one unit for shifting liquid between the tanks and the tanks and the surroundings.

Abstract: A hydraulic energy storage system for vehicles to provide higher efficiency, smaller package size, lower weight, unitary construction, durability and enhanced reliability while maintaining the capability to efficiently store and restore energy at high power levels.

Abstract: A hydraulic pressure generating apparatus includes a hydraulic oil feed line for feeding hydraulic oil with high pressure from an oil tank to a hydraulic pressure control system of a generator by an oil feeding pump unit, a hydraulic oil return line for returning drain oil from the hydraulic pressure control system to the oil tank, and a circulation line for circulating and purifying the hydraulic oil of the oil tank by a circulating pump unit. In such apparatus, the hydraulic oil is flame resistant hydraulic oil which is hardly deteriorated by direct heating, and the flame resistant hydraulic oil is heated by a heater disposed in the oil tank.

Abstract: There is thus provided, in accordance with a preferred embodiment of the invention, a system for conversion of wave energy in a body of a fluid using electromagnetic coupling (by moving a magnetic device inside a coil, or a coil inside magnetic field) driven by the linear motion due to either a buoy on a liquid or a linear movement induced by any mechanical means driven by a fluid, including: (a) a stationary support element mounted to the floor or to the floor of the body of the fluid in the form of a magnet or a coil; (b) a moving or buoyancy apparatus, for liquid fluids, including a buoy portion having formed therewith wave energy collection apparatus in the form of a floating device containing a magnet, or a coil; (c) coupling apparatus for connecting the moving or buoyancy apparatus to the stationary support element so as to be pivotal in a generally vertical plane with respect to the stationary support element; (d) at least a set a cables to allow for the flow of the electric current to a control/regula

Abstract: A lawnmower including a frame, an engine having an electrical system and attached to the frame, the engine being started by a starter mechanism. A mower deck assembly having a rotating blade is connected to the frame with the blade being selectively engaged with the engine. A reversible transmission is driven by the engine and includes a shift mechanism having a forward, a neutral, and a reverse position, and at least one sensor for sensing the position of the shift mechanism. The sensor is capable of at least one of directing a signal to the mower deck assembly for operation and non-operation of the mower deck assembly and directing a signal to the starter circuit for prevention of start-up when the shift mechanism is not in the neutral position.

Abstract: A heat exchanger is applied well to a turbo-generator system and a fuel-reforming system. The heat exchanger has porous metals disposed in a hotter area and a colder area, one to each area, and a wall separating the two areas from one another. The porous metals are merged integrally with the wall through junction layers to raise largely the efficiency of the heat exchanger. Heat is transferred from the hotter area where a fluid is allowed to flow through there to the colder area where another fluid is allowed to pass through there through the wall isolating the two fluids different in temperature from one another. The porous metals in the hotter and colder areas are merged together with the opposite surfaces of the wall through junction layers buried into the porous metals. The junction layers are made of pasty joining material kneaded with a powdery metal.

Abstract: A Rankine cycle system is provided in which, with regard to a given relationship between the pressure (Pevp) and the temperature (Tevp) of a vapor that is taken into an expander (4) that includes a cylinder chamber in a first stage and a vane chamber in a second stage, the chambers being disposed in line, the expansion ratio of the vapor that the expander (4) takes in and discharges is set at a predetermined expansion ratio (v) according to the given relationship so that the pressure (Pexp2) and the temperature (Texp2) of the vapor that is discharged from the expander (4) coincide with target values, thereby making the expander (4) and the condenser (5) exhibit maximum performance. Since the vapor within the cylinder chamber in the first stage is in a superheated vapor region and contains no water, the phenomenon of water hammer will not be caused in the cylinder chamber.

Abstract: A system for cooling at least one gas turbine liquid fuel component located in a high temperature environment to eliminate coking in the component is disclosed. The system includes a sleeve surrounding the liquid fuel component, a device for providing a current of cool air, and a conduit connected between the cool air device and the sleeve to direct the current of cool air into the sleeve to cool the liquid fuel component. The system can also include a manifold connected to the conduit and a plurality of second conduits for connecting the manifold to a plurality of sleeves surrounding a plurality of liquid fuel components, each sleeve being connected to a corresponding second conduit. Each sleeve includes a plurality of spacing devices for centering the sleeve around the at least one liquid fuel component so as to form an annulus between the sleeve and the liquid fuel component through which the current of cool air flows.

Abstract: A gas turbine engine combustor can downstream of a pre-mixer has a pre-mixer flowpath therein and circumferentially spaced apart swirling vanes disposed across the pre-mixer flowpath. A primary fuel injector is positioned for injecting fuel into the pre-mixer flowpath. A combustion chamber surrounded by an annular combustor liner disposed in supply flow communication with the pre-mixer. An annular trapped dual vortex cavity located at an upstream end of the combustor liner is defined between an annular aft wall, an annular forward wall, and a circular radially outer wall formed therebetween. A cavity opening at a radially inner end of the cavity is spaced apart from the radially outer wall. Air injection first holes are disposed through the forward wall and air injection second holes are disposed through the aft wall. Fuel injection holes are disposed through at least one of the forward and aft walls.

Abstract: A method for operating a gas turbine engine facilitates reducing an amount of emissions from a combustor. The combustor includes a mixer assembly including a pilot mixer, a main mixer, and an annular centerbody extending therebetween. The method comprises injecting at least one of fuel and airflow into the combustor through at least one swirler positioned within the pilot mixer, and injecting fuel into the combustor through at least one swirler positioned within the main mixer, such that the fuel is directed into a combustion chamber downstream from the main mixer.