Abstract: A post-tension anchor system having a first tendon with a sheathed portion and an unsheathed portion, a second tendon with a sheathed portion and an unsheathed portion, an anchor receiving the first tendon therein so as to have the unsheathed portion of the first tendon extending outwardly from one end of the anchor, a splice chuck receiving the unsheathed portion of the first tendon at one end thereof and receiving the unsheathed portion of the second tendon at an opposite end thereof, and a cover extending over the splice chuck so as to have one end extending in liquid-tight relationship with the sheathed portion of the second tendon. The cover also includes a cap member formed at an opposite end which is engaged within the cap-receiving section of the encapsulation of the anchor.

Abstract: At least one first column having a lower portion attached top a first floor and an upper portion attached to a second floor. The upper portion has a bore with an inner dimension. At least one second column having a lower portion and an upper portion attached to a third floor or building top structure. The lower portion has an outer dimension that is substantially the same or slightly less than the first column upper portion inner dimension so that the second column lower portion may be slidingly received in the bore of the first column upper portion in an overlapping, telescopic arrangement. At least one first retainer is attached to the first or second column, the retainer capable of engaging and supporting the second column thereon.

Abstract: A method and apparatus for providing a wire mesh security enclosure. In one embodiment the apparatus includes a plurality of unstacked, vertically oriented rectangular mesh panels coupled together to form a mesh wall. The mesh wall is anchored along a periphery defining the area to be protected. The mesh enclosure is reinforced by a plurality of independently positioned support posts offset from the interior of the mesh wall. The support posts are anchored to the floor interior of the mesh wall and are respectively coupled to the interior side of the mesh wall. The design of the security enclosure provides increased flexibility regarding the placement of the anchor posts and permits one-person assembly.

Abstract: The present invention provides an outdoor floor construction, having at least first and second floor surface units. The first and second floor surface units are installable adjacent each other and capable of assembly with edges abutting each other. There is at least a first hole in first floor surface unit and a second hole in the second floor surface unit. In addition, there is at least one joint member having means for supporting the floor surface units and which is aligned below the first hole and said second hole. The joint member has at least a first and second latching piece. A first latching piece fits into the first hole and the second latching piece fits into the second hole thereby retaining the first and second floor surface units with respect to one another. Wall units may also be installed along the outer edge of the floor using similar construction.

Abstract: A profiled web for arrangement between the underside of floor tiles and an upper surface of a support plate. The profiled web is based on a rigid plastic film formed to have a parallel series of successive channels, each of the channels being defined by first and second edge portions and a trough portion therebetween. The series of channels are open alternately to the upper surface of the support plate as a first group of channels and to the underside of the floor tiles when in an installed position as a second group of channels. First trough portions of the channels open to the support plate are parallel, and form an upper surface of the web; second trough portions of the channels open to the tiles are parallel and form a lower surface of the web. The web is provided with a plurality of through-openings which produce a liquid- and gas-permeable connection between successive channels.

Abstract: A roofing panel with elastomeric coating incorporates a substantially rigid core with opposed first and second faces. In a preferred embodiment, the core is formed at least partially of portland cement and has a fibrous glass material attached to its first face and a woven polyester material attached to its second face. An elastomeric coating is also provided which is attached to the woven polyester material opposite the core, thereby forming a liquid impermeable layer at an exterior face of the panel. A method for incorporating the roofing panel of the present invention into a roofing system is also provided.

Abstract: Panels for construction each include a concave jointing element which is embedded in a panel body at the upper end surface and a cylindrical body provided in the concave jointing element and extending from the bottom surface of the concave jointing element to a lower end of the panel body, and a convex jointing element held inside the cylindrical body. After the panels are disposed vertically, the convex jointing element held by the cylindrical body of an upper stage panel is lowered so as to engage with the concave jointing element of a lower stage panel. As a result, the upper and lower panels are jointed with each other. The construction of the panels can be performed in a short time without requiring techniques of skilled workers and time, and can obtain structures having a high strength with a beautifully finished surface.

Abstract: The invention concerns a prefabricated composite construction system for the production of internal and/or external building-walls. The composite construction system has a building panel for internal use of wooden material and a building panel for external use of a heat-insulating hard cellular material. Between the panels spacers are provided which are connected with them and form voids, which can be filled with concrete, in which steel lattices are arranged on the building panel for internal use which extend in concrete chuting direction.

Abstract: A construction system uses an elongate horizontal structural beam having a vertically oriented pair of side legs integrally joined to a base plate. The base plate lays abutting a structural ground surface with the side legs extending upwardly. The structural beam further comprising a number of horizontally spaced apart, tabs extending outwardly from the side legs. A number of elongate vertical structural beams, act as wall bearing members and have, integrally joined to a further base plate, a further pair of side legs adapted for abutting, at a first end, the first structural beam. Further tabs extend outwardly from the further side legs. Each of the tabs is derived as a cut-out portion of the side legs such that a major surface area of the tabs is positioned vertically or horizontally depending upon how the beam is positioned. A vertical concrete wall abuts the first and the second side legs and is positioned for enclosing all of the tabs for attachment of the beams to the wall.

Abstract: Roof shingles (14) from used tires (10) are provided as well as a method of making the same. Used tires (10) are cut along the circumference on each edge to separate a tread piece (13) from the side walls (12) and the bead steel. Tread piece (13) is then cut by dye, shear or other method into a number of shorter pieces or shingles (14). The shingles are then secured in overlapping relationship, typically tread side outward, to form a waterproof covering on a building or other structure.

Abstract: A method of raising the transmission hardware carried by a utility pole having a base end with a ground foundation supporting the pole in upright position, without disturbing the pole foundation or disconnecting the cables, includes the steps of securing opposed, circumferentially spaced elongate pole support members to extend upwardly along the pole and severing the pole to define a first pole supported by the pole foundation and a second pole supported by the first pole; fixing the support members to the first pole and slidably banding them to the second pole; raising the second pole above the first pole to a level remaining below the upper ends of the support members; and fixing the lower end of the second pole within and to the upper ends of the support members at a spaced distance above the first pole. The method further contemplates the releasable securement of ladder steps to at least one of the support members to provide ready access for carrying out some of the method steps.

Abstract: An apparatus for automatically and continuously supplying retractable spouts for cardboard boxes, which includes first and second storing devices for storing first and second spout webs and for continuously supplying said first and second spout webs from which spout elements are formed and cut and also includes feeding means for feeding said first spout web coming from said first storing device as well as end of web sensing means which actuate auxiliary feeding means for taking up the second spout web coming from the second storing device and also including a shaft supporting a first cam for operating the feeding means and the auxiliary feeding means and also including a second cam for operating a punch element for forming and shaping said spout elements, the feeding means including levers pivoted, at a respective middle portion thereof, to a support element and having an end portion thereof coupled to supports associated with the first cam wherein the web sensing means are arranged at said punch element.

Abstract: The present invention relates generally to handling and/or storing hazardous waste materials, such as radioactive materials, and is more specifically directed to loading and/or unloading radioactive material into or out of a container, such as a drum, by remote operation, and more particularly the present invention relates to the remote opening and/or closing of a container secured by a compression ring.

Abstract: A cantilevered packaging material dispenser has an arm rotatable about a generally horizontal axis to wrap packaging material around the top and bottom of the load in a wrapping area. The rotatable arm rotates about a cantilevered load support surface to wrap packaging material around the top and bottom of the load. The cantilevered load support surface includes a free end mounted and movable in the wrapping area between a wrapping position and a load transfer position.

Abstract: A system for transferring components between packing media, such as tube packing media and tape packing media, is provided. The system includes a first packing media handling system, such as a tube handling system. The system also includes a second packing media handling system, such as a tape packing media system. A component handling system can transfer components from the tubes to the taping system, or from the taping system to the tubes.

Abstract: A method and apparatus for covering portions of an object having an outer peripheral surface with a sheet of material having an upper surface and a lower surface with a pressure sensitive adhesive on at least a portion of the lower surface by wrapping the sheet of material about portions of the outer peripheral surface and positioning the sheet of material so that the pressure sensitive coating either contacts portions of the outer peripheral surface of the object and is bonded thereto or contacts overlapping portions of the sheet of material and is bonded to other adjacent portions of the sheet of material having the pressure sensitive coating thereon or overlapping portions of the sheet of material are bonded by the pressure sensitive adhesive.

Abstract: A method enabling the selective packaging of a product comprising a plurality of items of varying weights, such as chicken parts, and subsequent even-weight scannable packaging of the same. The method includes the steps of weighing each individual part; sorting each individual parts into a holding bin; accumulating a plurality of parts in each bin until a predetermined weight of parts is reached in a first of the bins; emptying the first bin of its parts; and packaging the parts in the appropriate package. The steps of emptying and packaging the parts in accord with the method of the present invention would be repeated as the bins were determined to hold the appropriate weight of product.

Abstract: Process and apparatus for handling (individual) packs (10), namely for packaging the latter in a folding box or the like. The packs (10), which, for production or other reasons, are fed in a specific relative position, to be introduced into the folding box as a pack group (22) in another predetermined relative position. For this purpose, turning stations (27, 49) are installed in the region of the pack conveyor and rotate the packs (10)--depending on requirements--about a horizontal axis and/or about a vertical axis.

Abstract: A funnel for a form-fill-seal (FFS) machine configured to make transverse-zippered reclosable packages from a continuous supply of thermoplastic film having a plurality of zipper strips transversely sealed thereto at package length intervals is provided. The funnel includes a lower surface a contoured to keep the zipper profiles substantially parallel to each other as the thermoplastic film is fed over the FFS machine forming collar and folded around the FFS machine filling tube. A method and apparatus for making transverse zippered reclosable packages is also provided.

Abstract: A wrapping material for wrapping hamburgers or other food items is provided, the wrapping material having a bonding material disposed on either an upper surface or a lower surface.

Abstract: A machine for packaging products using a plastic film comprises: at least a fixed frame (TF) and at least a mobile counter-frame (CM), said counter-frame (CM) can be moved between a lifted rest position and a lowered working position wherein the film is clamped against said frame (TF), the movement of the mobile counter-frame (CM) is controlled by at least a fluid-dynamic actuator (25) which works between the machine frame (11) and said mobile counter-frame. According to the invention, a link (26) is positioned between said actuator (25) and said frame (11), said link is pivoted to the actuator (21) in (27) and is pivoted to the frame (11) in (28), said link (26) is further provided with a control device (30) connected to a sensor (32), in order to automatically stop the machine from working.

Abstract: A machine for packaging products (11) with film (12) made of heat shrinkable material, comprises a body (13) containing a lower portion (14) of a shrinkage chamber which houses, wrapped in film (12), a product (11) to be packaged, and a cover (16), hinged to said body (13) and defining an upper portion (17) of the shrinkage chamber. Disposed in the shrinkage chamber (14, 17) are a heating unit (22) and a ventilating unit (26, 27) to create air circulation (29, 30, 31) inside said chamber. The ventilating unit (26, 27) is situated above the heating unit (22) to generate, when in operation, at least a flow of air (31) through the heating unit (22) in the direction of the bottom of the shrinkage chamber (14, 17).

Abstract: The present invention is an improved horse rein with a main leather rein member and a hook stud assembly. The main leather rein member has a hook stud area located between the bit end and the hand end. The hook stud assembly is a heterogeneous structure with: (i.) the hook stud area of the main rein member being a leather base; (ii.) a hook stud having a stem and a hook stud base, with the hook stud base being located on the leather base; (iii.) a synthetic fabric reinforcement layer atop the base and atop the hook stud base. The synthetic fabric reinforcement layer has an orifice thereon through which the hook stud stem passes. It is preferably formed of nylon; and (iv.) a leather backing atop the synthetic fabric reinforcement layer and having an orifice thereon through which the hook stud stem passes. The assembly is permanently attached to one another, e.g. by stitching. In other embodiments, plural hook studs are used, with and without a synthetic fabric interlayer.

Abstract: A legging (20) for a horse includes a flexible rim (30) to which is attached a fly netting (40). Three resilient polyurethane foam columns (42, 44, 46) are vertically disposed between the top (36) and bottom (38) of the rim to provide vertical rigidity. The legging is wrapped around the lower leg (700) of the horse and is secured in place with hook and loop fasteners (52, 54, 56, 58, 60, 62). The rim and columns space the netting from the leg so that horse flies cannot bite the leg and also allow improved air circulation.

Abstract: A device for the control and adjustment of hydraulic cylinders on work attachments and assemblies of work machines, preferably self-propelled harvesting machines. Increasing the performance of harvesting machines for bringing in crops efficiently and without loss requires rapid, uncomplicated adaptation of the harvesting machines and front harvesting attachments to the respective load and operating conditions. The front harvesting attachments and wheel carriages are connected to the hydraulic circuit of the harvesting machine and driven automatically by means of the electronic control system as a function of the respective working and operating conditions.

Abstract: A debris catching insert configured to be placed in a debris catching bag which is adapted to be removably attached to a debris discharging device, the debris catching insert comprising a first side and a second side connected to the first side by a top and a bottom, wherein at least one of the first side, second side, top and bottom comprise an air permeable panel.

Abstract: A method and apparatus for the shaping of a part of a plant. To this end, the plant and cutting device are rotated with respect to each other and excess material is removed. These cutting devices can be either moveable or fixed in relation to the surroundings. The point of contact of the cutting device and the plant lies, as far as possible, `upstream`, seen in the direction of rotation. The plant can then be potted and the pot can be rotated or, the plant can be stationary while the cutting device rotates with respect to the central axis of the plant.

Abstract: A hub guard includes a vertical wall portion preferably semi-circular in shape covering the upper half of the interconnected hub plate and teeth mounting plate and associated bolts. In an alternative embodiment, the guard vertical wall extends down on opposite sides of the hub housing terminating in end edges spaced apart to define an access opening to the teeth mounting bolts with the width of the access opening being at least as great as the width of the hub housing to allow for mounting of the guard on the housing and removal without removal of the rake wheel.

Abstract: A rake having a main rake and a supplemental rake thereon which is movable from a rest position to an open position where a load can be grasped to be deposited at a desired location. Both the main rake and the supplemental rake have tines with opposing points. When the supplemental rake is at a rest position, the above noted tines interleave with each other. The supplemental rake is hinged to the main rake and includes a pretensioned spring that is biased in such a manner so that the supplemental rake always tends to move into its rest position. When the supplemental rake is moved away from the main rake by an activation mechanism, the pretensioned spring is further tensioned and when a load is grasped between the two rakes the spring alone will keep the load there between without any further intervention by a worker. Additional mechanism has been provided which will extend the load capacity of the rake.

Abstract: For reinforcing rubber or plastics articles, particularly pneumatic tires, a wire filament is proposed which is spirally shaped and exhibits no elastic residual torsional stresses. A wire filament 8 according to the invention is produced by twisting drawn straight wire filaments 2 into the range of plastic deformation with subsequent return-twisting, at least two wire filaments being brought together and combined prior to return-twisting. Preferably at least two wire filaments 2 are brought together by means of a perforated disk 30, twisted about each other and plastically deformed in a false twister 20 and subsequently return-twisted in a further false twister 40.

Abstract: An air separator for a gas turbine, in which cracks are prevented from occurring at a flange portion of the air separator due to fretting fatigue. The air separator (20) has a cylindrical split structure formed by two separator members (20-1 and 20-2), of which one of the separators (20-1) is mounted on a rotor (1) whereas the other separator member (20-2) is mounted on a disc portion (7) on a side of a moving blade (2) by bolts (28) extending through bolt holes (23) formed in a flange portion (22). Cooling air from a compressor enters a space (6) from a duct (5) and passes to a passage (32) from a clearance (33) so that it is fed to air feed holes (43) and radial holes (44) of the disc portion (7). Alternatively, air holes (50) are provided in the flange portion (22) in the form of circumferential slots for covering a plurality of radial holes to feed the cooling air homogeneously so that a prior art air separator of an existing plant can be replaced.

Abstract: A turbofan engine construction has a stator portion coupled to and centra disposed within a rigid casing. A rotor portion is disposed between the rigid casing and the stator portion for rotation about the stator portion. A portion of fluids entering the turbofan are heated between the stator and rotor portions prior to expulsion thereof. The remainder of the fluids entering the turbofan pass unheated through the stator portion prior to expulsion. As a result, the heated fluids are expelled annularly about the unheated fluids.

Abstract: In an aircraft propulsive power unit a thrust reversing arrangement includes a flow redirecting structure having a flow redirecting downstream wall against which gaseous fluid flow in a first flow direction impinges to turn the flow into a second flow direction to produce reverse thrust and an upstream wall round which the fluid flow turns and which has a boundary surface so formed as to support adherence of a boundary layer of the redirected fluid flow at the boundary surface. The upstream wall is provided with projecting elements to generate vortices which prevent or delay separation of the boundary layer from the boundary surface of the upstream wall. Alternatively, the upstream wall is formed with a plurality of flow apertures which are connected by a duct to a pressure differential region or source to cause gaseous fluid to flow through the boundary surface of the upstream wall to prevent or delay separation of the boundary layer.

Abstract: A bypass turbo-fan type turbojet-engine having a thrust reverser utilizing pivotally mounted bypass flow deflecting doors, each door having a movable, retractable spoiler at its upstream edge. A control actuator for driving each movable spoiler relative to a door is arranged to cause the spoiler to remain in a stowed retracted position during the initial motion of the door toward its open thrust reversed position and to begin to positively move the spoiler to its extended position into the deflected flow stream as the door nears its fully opened position, the spoiler being fully extended when the door is fully opened at its thrust reversed position.

Abstract: A turbojet-engine thrust reverser comprises a displaceable sub-assembly including two internal clamshells (12) mounted on stationary pivots (18) of a stationary structure (1) and an annular, axially displaceable structure (11). The displaceable structure forms the external, downstream part (13) of a cowling. In the forward-thrust mode, the displaceable structure forms a downstream portion (15) of a radial outer wall of the flow path and forms the entire trailing edge by covering the clamshells (12) such that the clamshells form part of the radial outer wall of the flow path.

Abstract: A turbojet-engine thrust-reverser comprising pivoting hollow doors (3) which in the forward-thrust mode are integrated into the external cowling of the turbojet-engine and which in the thrust-reversal mode constitute scoop-type flow-deflecting baffles. A displaceable external cowling panel (20) covers both the fore frame (8) of the stationary structure and the cross-section of the flow exhaust of the door (3) when in the forward-thrust mode. The external cowling panel (20) is pivotable on a panel pivot (24) situated downstream of the pivot (9) of the door (3) and its upstream edge moves radially outward to simultaneously clear a space above the fore frame (8) and the exhaust cross-section for the deflected flow.

Abstract: In order to provide a combustion chamber, in particular for a rocket engine, comprising a combustion area, an inner shell surrounding the combustion area, an outer shell surrounding the inner shell and coolant passages formed between the inner shell and the outer shell, the casing of which has an improved thermal stability and an increased mechanical bearing strength, it is suggested in accordance with the invention that the outer shell be formed from a fibrous ceramic material and the inner shell be formed from a fibrous ceramic material or from graphite.

Abstract: The invention is directed to a method for evaluating the operability of a catalytic converter mounted in the exhaust-gas system of an internal combustion engine. In the method, the actual value of a signal of an exhaust-gas probe mounted downstream of the catalytic converter is detected and an expectation value of the signal of the exhaust-gas probe is formed from quantities measured upstream of the catalytic converter. A measure is formed for the deviation of the actual value from the expectation value and the operability of the catalytic converter is evaluated on the basis of the measure.

Abstract: A catalytic monitoring method for an engine having two engine banks of which each coupled to one of two catalytic converters using first and second exhaust gas oxygen sensors, respectively upstream and downstream of one catalytic converter. Third and fourth exhaust gas oxygen sensors are respectively coupled upstream and downstream of the other catalytic converter. Switch ratios are determined for each of the engine banks based on the switching ratios of each upstream and downstream pair of exhaust gas oxygen sensors. A combination of the switch ratios is used to determine overall catalytic converter system performance.

Abstract: An unburnt gas component such as unburned hydrocarbon (HC) discharged from an internal combustion engine irrespective of an amount of exhaust gas is purified without fail. The unburnt gas component is prevented from being discharged into the atmosphere.

Abstract: A heat exchanger for a motor vehicle exhaust includes an outer tubular body and an inner tubular body. The outer tubular body has peripheral sidewalls, an interior cavity, a first end and a second end. The inner tubular body has fluid impervious sidewalls formed out of a single length of conduit wound in a spiral coil. The spiral coil has an exterior surface and an interior surface. The inner tubular body is disposed within the interior cavity of the outer tubular body spaced from the peripheral sidewalls. This provides a first flow channel between the exterior surface of the inner tubular body and the peripheral sidewalls of the outer tubular body, and a second flow channel along the interior surface of the inner tubular body. The conduit of the spiral coil has an inlet end and an outlet end, whereby fluid is circulated through the coil.

Abstract: An exhaust system for an internal combustion engine used in a marine propulsion system is provided with a water injection system by which water can be injected into the exhaust system. An engine control unit, which comprises a micro-processor, is used to select the rate of water injection into the exhaust system as a function of several predefined parameters. For example, engine speed and throttle position can be used by the micro-processor in the engine control unit to select a predefined rate of water flow into the exhaust system by selecting a predefined valve position, for an electronically controlled valve, that has been preselected and stored in the micro-processor.

Abstract: A flexible tube for an automobile exhaust system which has a bellow assembly to absorb the first exhaust pipe and the second exhaust pipe for the an exhaust system having a cylindrical outer cover (5) made of plate to cover the outer periphery of the bellows (3)1 the first collar (7') and the second collar (7") with the risers (7a', 7a") bent toward the inner surface (5a) of the outer cover (5); the first elongation displacement stopper member (6') and the second elongation member displacement stopper member (6") respectively formed by bending the inner side of the outer cover (5); and the first elastic stopper member (8') and the second elastic stopper member (8") provided at the risers (7a', 7a") of both collars (7', 7"). As a further modification, the second outer cover (9) may be provided inside of the outer cover (5) to form displacement stoppers (9a, 9b) by bending the both end portions of the second outer cover.

Abstract: A system that can recover flows of a hydraulic pressure fluid returned from a plurality of hydraulic actuators is disclosed which includes a plurality of fluid recovery circuits (15, 19, 25 and 27) into which flows of a hydraulic pressure fluid returned from such a plurality of actuators are admitted, and a main fluid recovery circuit (36). There is provided a selector means (30, 31, 32, 33, 34, 35, 37) for permitting at least one of the plural fluid recovery circuits (15, 19, 25 and 27) selectively to communicate with the main fluid recovery circuit (36). The system, by permitting at least one of a plurality of fluid recovery circuits to communicate with a main fluid recovery circuit, enables a hydraulic return pressure fluid from at least one of a plurality of actuators to be recovered and hence is applicable to a working machine involving a plurality of hydraulic actuators.

Abstract: An object of the present invention is to provide a hydrostatic transmission system integrally constructed without being large-sized while incorporating a variable displacement motor therein.In order to accomplish the object, a casing 11 has a variable displacement pump 1 and a variable displacement motor 3 incorporated therein in a manner to be juxtaposed to each other. The pump 1 is constituted by a cam plate type axial plunger pump which is constructed so as to render a tilting angle of a cam plate 18 variable and render a discharge rate of hydraulic fluid zero when the tilting angle is within a range set near 0 degree. The motor 3 is constituted by a cam plate type axial plunger motor including a cam plate 33 of which a tilting angle is variable.A cover 48 is provided with a pair of passages 2a and 2b, relief valves 9a and 9b, check valves 10a and 10b, and a change-over valve 5.

Abstract: The present invention relates to a heating installation with a Stirling engine and Stirling-type heat pump integrated within a single pressure vessel. Two hot chambers and two cold chambers, as well as a working chamber in which a piston is mounted such that it oscillates freely, are located inside the pressure vessel. The chambers are in fluid communication with one another. A displacer is able to oscillate freely to and for between each pair of hot and cold chambers. By means of this Stirling engine of the fire piston type and the Stirling heat pump integrated therewith, a low-noise, low-maintenance and highly energy-efficient heating installation is formed which has a high net efficiency (COP value between 1.5 and 2.5). The heat from the cold chamber of the Stirling engine and from the hot chamber of the Stirling heat pump part is passed to a hot water system via a first and second heat exchanger. The heat from the exhaust gases is passed to a third heat exchanger.

Abstract: The present invention discloses and teaches a unique, remote optically controlled micro actuator particularly suitable for aerospace vehicle applications wherein hot gas, or in the alternative optical energy, is employed as the medium by which shape memory alloy elements are activated. In gas turbine powered aircraft the source of the hot gas may be the turbine engine compressor or turbine sections.

Abstract: A fuel injector (32) for a gas turbine engine combustion chamber (22) comprises a fuel injector nozzle (34) and a fuel feeding member (36). A wire mesh (76) is located in a space (74) defined between a hollow outer member (72) arranged around and spaced from a hollow inner member (70) of the fuel feeding member (36) and a fuel nozzle body (54) of the fuel injector nozzle (34). The wire mesh (76) rubs against the hollow outer member (72), the hollow inner member (70) and the fuel nozzle body (54) to frictionally damp vibrations of the fuel injector (32).

Abstract: A lean-burn combustor for a gas-turbine engine has a radial inflow pre-mixing, pre-swirling burner with a central burner face which forms the upstream wall of a pre-chamber of the combustor. A circular recess is formed in the burner face, the recess having at least one pilot fuel injector for introducing pilot fuel tangentially into the recess, whereby the burner runs cooler and combustion characteristics are improved.

Abstract: A system and method for cooling a first cryogenic liquid in a vessel comprises the steps of directing a second cryogenic into the first cryogenic fluid and releasing gas from the vessel. The first cryogenic fluid has a boiling point that is higher than the boiling point of the second cryogenic fluid. Directing the second cryogenic fluid into the first cryogenic fluid results in the second fluid cooling the first fluid and the second fluid vaporizing. The vaporized fluid is released as a gas from the vessel. The vessel may be a propellant tank for a space vehicle. The first and second cryogenic fluids are delivered from supplies located outside of the vehicle. The first cryogenic liquid may be oxygen and the second cryogenic liquid may be nitrogen, neon, or helium. In another aspect of the invention, the first cryogenic liquid may be hydrogen and the second cryogenic liquid may be helium.