Abstract: A slip joint for a riser between a well and a floating petroleum installation, for example an oil platform. The slip joint includes, an outer pipe and an inner pipe, the pipes arranged to enable telescopic movement relative to one another in order to compensate for a change in distance between the sea bottom and the platform. The inner pipe is connected to a piston, the piston being operable in response to hydraulic pressure for inflicting a tensile force on riser. The outer diameter of the inner pipe is adapted to the diameter of outer pipe so as to form an annulus between the pipes. The piston is fixedly connected to inner pipe at or close to a downwardly directed end thereof, the annulus and the piston being subjected to hydraulic pressure. A protective sleeve is provided below the piston, which is slippingly arranged within outer pipe.

Abstract: A yieldable prop having a first end and a second end including a first hollow conduit, a second conduit slidably received in the first hollow conduit, a clamp assembly positioned adjacent to the first hollow conduit and the second conduit, and at least one handle connected to the first hollow conduit and the clamp assembly. The prop further includes a bearing plate positioned at the first end of the yieldable prop, wherein the bearing plate is selected from a shape comprising planar and volcano.

Abstract: In an embodiment, a drill nozzle includes a housing having a bristle brush ring attached. The housing of the drill nozzle may include an air intake, multiple coolant inlets, multiple coolant jets, a vacuum tube, and mounting flanges. The air intake may provide a thrust-vectored down draft into the vacuum tube. The coolant inlets may receive coolant fluid that may be expelled from the coolant jets towards a drill bit. Drilling debris and coolant fluid may be contained inside the bristle brush ring preventing damage and soiling of surrounding structures and areas and may be extracted with the vacuum tube. The drill nozzle may be attached to a drill motor unit of a numerically controlled drill jig, enabling the use of such numerically controlled drill jig for drilling high quality holes effectively into non-flat surfaces, for example, the leading edge extension spar of the F-18 aircraft.

Abstract: A method and apparatus for forming apertures and inserting fasteners in a workpiece is disclosed. One embodiment relates generally to a bit holder device for forming apertures and inserting fasteners into a workpiece. This embodiment comprises a tool bit, a hex holder member, an adapter hex member, a double collet member, a collet retention cap and a drill bit. The drill bit is capable of drilling an aperture into a workpiece whereupon the drill bit, the collet retention cap, the double collet member and the adapter hex member are removed from the hex holder member thereby, allowing the tool bit to forcibly insert a fastener into the workpiece.

Abstract: An extractor device for machine tools which have at least one tool-holder machining head has an annular blowing distributor for generating a tubular gaseous barrier around the tool-holder machining head, and an annular extractor manifold, positioned inside the barrier and concentric with the annular blowing distributor, for extracting shavings and/or dusts created by machining confined in the barrier.

Abstract: A retractable tie down for tying a work vehicle down to a cargo vehicle is disclosed, the tie down including a retractor assembly fixed to the outer surface of a work vehicle; a belt with one end connected to the retractor assembly; and a coupling connected to the other end of the belt, wherein the belt has a length sufficient to reach the cargo vehicle.

Abstract: A cargo bar for retaining loads in a cargo container having opposing side walls. The cargo bar includes telescoping sections and end devices at the opposed ends of the cargo bar. The end devices are elastameric and absorb excessive forces that induce pressure grip extension of the telescoping sections.

Abstract: A composition for use as a self-locking agent is provided which comprises an aqueous dispersion of the following ingredients dissolved and dispersed in water: (a) a polyamide powder insoluble or slightly soluble in water, (b) an isocyanate compound, (c) a surfactant and (d) a water-soluble polyamide. The composition permits a polyamide resin layer of a smooth surface to be formed on a screw surface of a to-be-coated member. With use of the composition, it is possible to prevent slippage and sagging of the resin layer coated on the screw surface and improve the precision in resin coating processing.

Abstract: The present invention relates to a stud including, a head having a torque transferring structure and an underside wherein the underside includes a plurality of protrusions; a shaft having a trilobular shape comprising a plurality of shaft elements having at least one solid shaft element and a plurality of outer surfaces, wherein the plurality of outer surfaces includes a threaded surface with a locking thread located adjacent to a Vee-shaped thread.

Abstract: The invention relates to a countersunk screw having a threaded shank and a countersunk head, which latter has a conical surface tapering at a countersinking angle in the direction of the threaded shank. The conical surface has a plurality of ribbed protrusions distributed over the periphery and jointly defining a conical enveloping surface with a cone angle. The countersinking angle of the conical surface is less than the cone angle of the ribbed protrusions. The ribbed protrusions have outer bearing surfaces, which define the conical enveloping surface and which, in terms of their areal size, are dimensioned in dependence on a material-specific surface pressure such that, in a screw application for fastening fittings or the like by screwing into a sinkhole between the ribbed protrusions and the respective sinkhole, a certain, surface-damage-preventing surface pressure is generated.

Abstract: In a process for production of a lid ring (30) which can be connected to the can body, which borders a discharge opening (38) and has a heat-sealable coating (40) on which to form a can lid (50) a closing membrane (44) can be heat-sealed covering the discharge opening (38), a metal strip (12) with parallel side edges (14, 16) is formed into a tube (20) and the side edges (14, 16) are welded or glued parallel to the tube longitudinal axis (x). The tube (20) produced in this way is divided into tube sections (24) of equal length with cut edges (26, 28) lying in parallel planes. The tube sections (24) are formed into lid rings (30) where a first cut edge (26) is formed into an outer rim (32) for connection to a can body and the second cut edge (28) is curled away from the side intended for the heat-sealable coating (40). The heat-sealable coating (40) is applied to the finished molded lid ring.

Abstract: Cartridge-handling apparatus for a media storage system comprising a lift assembly having at least one guide track aligned along a first displacement path in the media storage system. A carriage having a transfer shaft aligned along a second displacement path in the media storage system. The transfer shaft operatively associated with the at least one guide track of the lift assembly for moving the carriage along the at least one guide track through the first displacement path. A picker slidably mounted on the carriage to the transfer shaft. The picker moving with the carriage through the first displacement path, and the picker moving on the transfer shaft through the second displacement path.

Abstract: A substrate transfer apparatus (100) includes a base (40), first and second cassettes (1, 2), a adjustable cassette (6), and a push unit (50). The adjustable cassette (6) is between the first and second cassettes, and has a pair of side walls (640), a top wall (630) interconnecting the side walls, and a height-adjusting mechanism (63). The base supports the first and second cassettes and the adjustable cassette thereon, and defines a central slide groove (41) therein. The push unit includes a slide portion (550) and an urging portion (500). The slide portion can slide in the central slide groove. The height-adjusting mechanism can adjust a height of the adjustable cassette according to the height of the first cassette and the height of second cassette. The urging portion can push substrates in the first cassette into the adjustable cassette and further into the second cassette.

Abstract: A retainer for securing the outer air seal assembly of a turbine rotor stage in a locked position. The outer air seal is suspended from the turbine casing over the rotor stage and is locked to the casing by annular segmented locking keys. A series of circumferentially spaced seats are located upon the front face of the locking key segments with the outer surfaces of the seats describing a circle approximating a first diameter. A split ring retainer is slidably carried in a radially disposed groove and is arranged to secure the key segments in a locked position. A series of lugs extend inwardly from the inside wall of the ring. The lugs are circumferentially spaced about the ring with the inner surface of the lugs approximating a circle having a second diameter that is less that of the first diameter approximated by the seats. The lugs are spaced so that each lug can be seated upon a seat to flex the ring outwardly in a radial direction and thus secure the key segment in a locking position.

Abstract: A method for assembling a gas turbine engine that includes providing a low-pressure turbine inner rotor that includes a first plurality of rows of turbine blades configured to rotate in a first rotational direction, providing a low-pressure turbine outer rotor that includes a second plurality of rows of turbine blades configured to rotate in a rotational direction that is opposite the first rotational direction, and coupling a support structure between the outer rotor and a turbine mid-frame such that the support structure supports a forward end of the outer rotor, and wherein the support structure includes a first portion that has a first coefficient of thermal expansion and a second portion that has a second coefficient of thermal expansion that is different than the first coefficient of thermal expansion.

Abstract: An apparatus for scavenging lubricating oil comprises an integrated slinger/runner rotatable with the turbine engine rotor discourages oil seepage out of an oil sump of a forward bearing for a gas turbine engine during all operating conditions of the gas turbine engine from idle to take-off speeds and during static non-operation. The apparatus includes a runner comprising an axially forward section and a frusto-conical aft section, and a slinger joined coaxially integrally to the aft frusto-conical aft section. The apparatus includes a means for blocking flow of oil from the frusto-conical aft section toward the axially forward section.

Abstract: Disclosed are various embodiments of a gas turbine blade to vane interface seal for restricting leakage of cooling air and improving the apportioning of the cooling air to the seal. Accordingly, a turbine rotor contains a first and a second stage of radially extending and circumferentially distributed blades. The stages are separated axially from one another by an annular coupling located radially inboard of the blades, forming a chamber therebetween. Interposed between the blade stages is a vane stage. The vane stage contains a land, facing radially inwardly. A ring projects axially from each of the first and second blade stages towards the vane stage. A ring may also project radially from the coupling towards the vane stage. The rings radially cooperate with the land and together form the blade to vane interface seal. The coupling contains an aperture for radially introducing a cooled fluid to the chamber for use in cooling the seal.

Abstract: A low pressure turbine shroud assembly includes a backsheet with enhanced blade containment capabilities that is sized to be retrofitted into a conventional low pressure turbine assembly. The backsheet has first and second mounting rails at axially opposite ends thereof and a blade containment sheet shield disposed therebetween. The rails and the containment shield are of a uniformly increased thickness as compared with a conventional backsheet rail and containment shield design. The assembly also includes a modified mounting hook for mounting the improved backsheet to a case extending around the shroud. The mounting hook is of reduced thickness as compared with a conventional mounting hook for a conventional backsheet proportional to the increase in thickness of the backsheet. The assembly also can include a rub strip disposed between a radially inner surface of the backsheet and a turbine blade.

Abstract: A turbine shroud section includes a cooling passage that bleeds cooling air through an opening in a surface. The cooling passage forms an angle relative to an expected fluid flow direction. The angle defines an angular component in a circumferential direction, which is aligned with the expected fluid flow direction to reduce momentum energy loss of fluid flow through the engine.

Abstract: A centrifugal fan, in which an expansion angle of a radius of curvature of the outer periphery of a scroll housing from a position angle of a cutoff portion, serving as a suction portion, to a designated portion from the former in the direction of air flow is gradually decreased; and an expansion angle of the radius of curvature of the outer periphery of the scroll housing from the above designated portion to a discharge portion is gradually increased, thereby easily converting the velocity of the discharged fluid to pressure due to the increased dimensions of the discharge region and increasing the flow rate. Further, since noise generated from a cutoff portion of the centrifugal fan of the present invention maintains the same level as that of the conventional centrifugal fan, the centrifugal fan of the present invention has reduced noise at the same flow rate.

Abstract: A fan assembly for a vacuum cleaner, comprising a motor, an impeller rotatably coupled to the motor, and having a plurality of impeller wings, and a diffuser having a plurality of diffuser wings arranged along an outer circumference of the impeller. The plurality of diffuser wings includes first and second parts, the second part extending from an angle of the first part adjacent to the outer circumference of the impeller.

Abstract: A heat-dissipating fan includes a casing having an air outlet, a base mounted in the air outlet, an impeller being mounted on the base and having a plurality of blades, a plurality of ribs each extending between the base and the casing along a radial direction of the base, and at least two air-guiding ring fixedly mounted to the ribs. The air-guiding rings vary in inclinations along a longitudinal direction of the casing. The air-guiding ring guides airflow in various directions, and divides airflow passing through the air outlet when the impeller is turning.

Abstract: The invention relates to a process for producing a rotor blade for a wind power system, wherein at least two rotor blade elements are arranged one behind the other in a longitudinal direction of the rotor blade and are glued together via at least one, preferably at least two connecting elements bridging a partition line between the rotor blade elements, wherein at least one connecting element is aligned with said rotor blade elements, wherein a hollow space is formed between an outer delimitation surface of at least one of the rotor blade elements and at least one fixing segment of the inner delimitation surface of said connecting element, and subsequently the hollow space is flooded with an adhesive (resin).

Abstract: A gas compressor based on the use of a driven rotor having an axially oriented compression ramp traveling at a local supersonic inlet velocity (based on the combination of inlet gas velocity and tangential speed of the ramp) which forms a supersonic shockwave axially, between adjacent strakes. In using this method to compress inlet gas, the supersonic compressor efficiently achieves high compression ratios while utilizing a compact, stabilized gasdynamic flow path. Operated at supersonic speeds, the inlet stabilizes an oblique/normal shock system in the gasdyanamic flow path formed between the gas compression ramp on a strake, the shock capture lip on the adjacent strake, and captures the resultant pressure within the stationary external housing while providing a diffuser downstream of the compression ramp.

Abstract: A turbine blade for a turbine engine having a cooling system in the turbine blade formed from at least one elongated tip cooling chamber for passing cooling fluids in close proximity to an outer surface of the tip section of a turbine blade. The cooling system may include one or more elongated tip cooling chambers positioned in the tip section of a turbine blade for receiving cooling fluids through metering slots for regulating the flow and for exhausting those fluids from the turbine blade through the pressure sidewall to be used in external film cooling applications. The elongated tip cooling chambers enable the outer wall forming the tip section to be cooled internally and externally with cooling fluids.

Abstract: A turbine blade cooling system for a gas turbine engine includes a turbine blade having a trailing edge, a concave side, and a convex side. The trailing edge defines at least one set of impingement holes each having a central longitudinal axis which is closer to a nearest portion of an edge of the blade at one of the concave and convex sides relative to a nearest portion of an edge of the blade at the other of the concave and convex sides. Alternatively or in addition to the foregoing, the trailing edge can define at least one set of impingement holes each having a central longitudinal axis which is angled in a direction of a flow of cooling medium toward one of the concave and convex sides relative to the other of the concave and convex sides.

Abstract: A gas turbine rotor blade capable of effectively reducing creep damage by forming a cooling through hole to cool a target area in which significant creep damage of a shroud cover is predicted based on analysis of stress and temperature acting on the gas turbine rotor blade. A gas turbine using the rotor blade, and a power plant using the gas turbine are also provided. The gas turbine rotor blade includes a blade section provided with a shroud cover at an outer peripheral end thereof, and a platform, a shank and a dovetail which are formed in integral structure to successively continue from the blade section. An inner cooling hole is formed to penetrate through the gas turbine rotor blade from the dovetail to the shroud cover. The shroud cover has a cooling through hole formed to open in an outer surface of the shroud cover and extend in communication with the inner cooling hole.

Abstract: An improved sail restraint for Migler's vertical axis wind turbine in which excessive wind speed automatically causes the sails to be feathered, protecting them from wind damage, and, when the wind speed is reduced to an allowable level, the improved sail restraint automatically allows the sails to be reset to their nonfeathered, working position.

Abstract: Aspects of the invention are directed to a turbine blade assembly and an associated method of manufacture. The turbine blade assembly can include: (a) a unitary structure having an airfoil and a primary root portion; (b) a separately-formed platform; and (c) a secondary root portion that cooperates with the primary root portion to define a root. The platform can be secured in place between the structure and the secondary root portion. In a preferred embodiment, the structure can be formed by casting, and the secondary root portion can be formed by powder metallurgy. Ideally, the structure is configured so as to avoid large changes in section size or to at least make such changes gradual, particularly in transitioning from the airfoil to the primary root portion. The turbine blade assembly can reduce the propensity for defects to form during the manufacturing process. Thus, higher casting yields can be realized.

Abstract: A device for the positioning of a blade in a slot of a rotor disk includes a spring spacer that consists of a single elastic piece of profiled shape with a top wall and a bottom wall connected together by two side walls. The two side walls include at least one machined feature.

Abstract: A rotor assembly or “blisk” for a gas turbine engine includes a metallic hub having an annular flowpath surface, and at least one blade extending outwardly from the flowpath surface. The blade includes a metallic body having a first density. The metallic body defines a shank portion and an airfoil portion having opposed pressure and suction sides, and is integral with the hub. An insert having a second density less than the first density is carried by the body, and the insert and the body collectively define an airfoil shape. A method is also provided for manufacturing a rotor assembly.

Abstract: Low-noise fan exit guide vanes are disclosed. According to the present invention a fan exit guide vane has an outer shell substantially shaped as an airfoil and defining an interior cavity. A porous portion of the outer shell allows communication between the fluctuations in the air passing over the guide vane and the interior cavity. At least one acoustically resonant chamber is located within the interior cavity. The resonant chamber is in communication with the porous portion of the outer perimeter. The resonant chamber is configured to reduce the noise generated at a predetermined frequency. In various preferred embodiments, there is a plurality of acoustically resonant chambers located within the interior cavity. The resonant chambers can be separated by one or more partitions within the interior cavity. In these embodiments, the resonant chambers can be configured to reduce the noise generated over a range of predetermined frequencies.

Abstract: A turbomachine rotor including at least one disk having a ring constituted, for example, by a winding of metal-coated silicon carbide or alumina yarn. According to the invention, the composite ring is received in a closed annular cavity, e.g. defining by machining a groove in an enlarged portion of the disk and closing the groove by means of an annular plate after the ring has been put into place.

Abstract: According to some embodiments, systems and methods for tethered wind turbines may be provided. In some embodiments, a system may comprise an airborne body extending horizontally along an axis between a first point and a second point, wherein the body is at least partially filled with a gas. The system may further comprise, for example, two or more vanes coupled to the body such that the vanes, when acted upon by a wind force perpendicular to the axis are operable to cause the body to rotate about the axis to generate a Magnus effect lifting force. According to some embodiments, the system may comprise one or more tethers coupled to anchor the body to a third point.

Abstract: An apparatus and a method for controlling an operation of a reciprocating compressor can improve efficiency of a compressor by reconciling an operation frequency with a mechanical resonant frequency. The apparatus includes a mechanical resonant frequency calculating unit for calculating mechanical resonant frequency, using a current applied to a compressor and a stroke; an operation frequency reference value determining unit for determining an operation frequency reference value within a predetermined range of the calculated mechanical resonant frequency; and a controller for comparing the determined operation frequency and a current operation frequency, and then variably controlling an operation frequency of the compressor according to the comparison result, so that stroke feedback or TDC feedback can be controlled more accurately. Accordingly, an operational efficiency of the compressor is improved.

Abstract: A fluid end for a high-pressure pump including a unitary body with a plurality of horizontal passages each for receiving a reciprocating plunger at one of its ends and a pressure relief valve at the other of its ends. The body is provided with a corresponding number of vertical passages each of which intersect one of the horizontal passages and contains a suction valve at its bottom and a discharge valve at its top. A suction manifold is hingedly attached to the bottom of body to provide a flow of fluid into the body via the suction valves. A discharge passage intersects the vertical passages and receives fluid pressurized by the plungers via discharge valves and ports such from the fluid end.

Abstract: Precision dispense pumps comprise a housing that has an internal chamber disposed therein. A pressurizing assembly disposed within the chamber and includes a cylindrical pressurizing member having a head, a thin-walled skirt extending axially away from the head, and a flange is positioned circumferentially around the skirt. The pressurizing assembly includes a support coupled to backside of the pressurizing member. The support has a cylindrical outside surface sized support the skirt when it is translated from a chamber surface during pressurizing assembly axial movement. A shaft projects through an opening in the support and into a partial opening in the pressurizing member. A fluid transport body is attached to the housing and includes a fluid chamber having a fluid inlet port and a fluid outlet port. An actuator is disposed within an actuator housing attached to the housing and is coupled to the shaft to cause axial movement of the pressurizing assembly within the housing chamber.

Abstract: An apparatus for varying the capacity in a scroll compressor, the apparatus having an orbiting scroll provided with a wrap filling portion which is stepped at a certain height, extending the entire inside of a wrap from an outer end portion of the wrap; a fixed scroll provided with a stepped wrap obtained by stepping a wrap corresponding to the wrap filling portion of the orbiting scroll and being in meshing arrangement with the orbiting scroll; a connection passage for connecting compression pockets formed by the outer wrap portion of the orbiting scroll and the inside of the wrap of the fixed scroll opposed to the outside of the outer wrap portion with the suction opening; and an opening/closing unit for opening or closing the connection passage such that the suction opening side and the compression pockets can be connected and disconnected to each other.

Abstract: A gear pump, in particular for pumping material such as rubber mixes, includes an enclosure in which a central gear wheel and two peripheral gear wheels rotate. Teeth of the central gear wheel mesh with teeth of both peripheral gear wheels to pump material from an inlet to an outlet. The pump includes at least one feed chamber in which a feed mechanism delivers material to the inlet. The gear wheels are separately driven by a driving torque. A prestressing device applies a torsional prestress which presses the meshing teeth together for creating a seal between those meshing teeth to prevent leakage of material past the teeth.

Abstract: An In-Mould Labelling process comprising: clamping a label within a mould void of an injection moulding tool; and injecting material into the mould void while the label is clamped. An In-Mould Labelling process comprising: placing a label between a first mould void and a second, separate mould void; and injecting material into the first and second mould voids.

Abstract: A mold insert set is provided for use with a mold system having first and second mold bodies, the first and second mold bodies aligning opposite each other during a molding process. Each of the mold bodies has at least one insert receiving region for replaceably receiving an insert of the mold insert set. Each of the inserts has an insert body, a mold cavity formed in the insert body, the mold cavity being for forming an object, and an opening in the mold cavity for aligning with a gas injection region of the mold body in which the insert is received. The gas injection region is where blow gas is introduced to the mold cavity for forming the object.

Abstract: An apparatus and a method for producing woodfuel briquettes, pellets, compounds, composites, agglomerates, or granulates as source material for subsequent processing in injection molding or extrusion processes, includes a pressing screw with screw spirals, which rotate around a longitudinal axis and which are arranged inside a screw shell. The feed material is conveyed to the pressing screw via a feed chute located at an input side. At the end of the pressing screw, processing tools are arranged, to which the feed material is conveyed by the rotating screw spirals. In the area of the processing tools, the residual moisture in the feed material evaporates due to the heat generated during the processing procedure, and is vented as a steam flow from the apparatus through the screw shell.

Abstract: A detachable roller mold press includes two rollers that can rotate relative to each other. The rollers are securely fastened to a predetermined location, which can drive a press mold or a knife mold plate. The roller mold press of the present invention is detachable so as to save storage space. The detachable roller mold press includes a roller mechanism, a chassis, a bottom cover and two bridges. The roller mechanism includes two rollers that can rotate relative to each other. The front and the rear portions of the chassis include an opening. The opening and the two rollers form a space for allowing a knife mold or a press mold plate to move therein. By rotating the two rollers, one can move the knife mold or the press mold plate to rapidly carve or engrave on a piece of paper or a piece of cloth.

Abstract: A device for producing rigid plastic pipes of an approximately cylindrical shape, contains an extruder and a calibrating station following in the direction of production, which has calibrating tools to calibrate the outside diameter of the already partly hardened pipe. The calibrating tools bear against the outside wall of the pipe, lamellae serving as calibrating tools being respectively connected to spindles, which, for adaptation to different outside diameters of pipes that are to be calibrated, being adjustable in a radial direction perpendicular to the axis of the calibrating device and feed axis of the pipe that is to be extruded.

Abstract: A compression-moulding press for moulding plastic containers (P) consisting of a moulding cavity formed by a plunger (5), a female mould (14), and two separable lips (7, 8). A cylinder (16) slides inside a sliding slide (22) to keep the lips (7, 8) closed. The plunger (5) slides inside the cylinder (16), with respect to both the cylinder (16) and the slide (22), when moulding the containers (P). Finally, a method for making plastic containers by means of compression moulding using said device is also described.

Abstract: A mold tool for forming a reinforced matrix composite part for a gas turbine engine, comprising a body. The body comprises a body surface capable of receiving a first portion of a composite preform. A first endplate and second endplate are attached to the body and include a substantially planar surface disposed perpendicular to the body surface. A first and second set of plates are attached to the first and second endplate adjacent to the body surface and have a geometries that includes a first and second cavity bounded by the first and second plate and first and second endplate. The first and second cavities have a volume sufficient to receive a second portion of a composite preform. The second cavity is in fluid communication with the first cavity, which is in fluid communication with a vacuum source.

Abstract: A drive system reciprocates a mold plate between a cavity fill position and a patty discharge position, and can also reciprocate knock out plungers to discharge molded food patties from cavities in the mold plate at the patty discharge position. This drive system includes a first electric motor; a first rotary-to-linear motion converting apparatus operatively connected to the first electric motor; at least one drive member operatively connected between the first rotary-to-linear motion converting apparatus and the mold plate to reciprocate the mold plate. The drive system can also include a second electric motor; a second rotary-to-linear motion converting apparatus operatively connected to the second electric motor; and at least one knock out member operatively connected between the second rotary-to-linear motion converting apparatus and the knock out plungers, to reciprocate the knock out plungers.

Abstract: A method of extending the droplet half-life of water droplets in a combustion furnace by increasing the relative humidity in the droplets' environment; thereby reducing the evaporation rate of the water from the droplet and increasing the half-life of the droplets in the droplets' environment.

Abstract: Method for controlling or regulating a burner (5) to which a defined air quantity (3) and fuel quantity (4) are fed, the exhaust gas (6) formed during the combustion being fed to a sensor (7), and the actual value (8) detected by the sensor being compared with a desired value (9), and a control deviation being obtained from the difference between desired value and actual value, which control deviation is converted into a control variable (11) which is independent of the burner power, characterized in that a power-dependent control variable (15) is generated from the power-independent control variable (11) and from burner-specific parameters (13) which are determined during setting of the burner for the respective power points of the burner, and in that the power-dependent control variable (15) is converted into a control signal (17, 18) in order to influence the ratio of the air quantity (3) to the fuel quantity (4).

Abstract: An evaporative burner, particularly for a vehicle heating device, includes a combustion chamber housing and, in the combustion chamber housing, an evaporative medium for receiving liquid fuel and for delivering fuel vapor into a combustion chamber. A heating coil arrangement is on a side of the evaporative medium remote from the combustion chamber, and an ignition region of the heating coil arrangement extends over the evaporative medium into the combustion chamber.