Abstract: A process for producing a metallic honeycomb body includes winding, laminating or intertwining at least one at least partly structured layer of sheet metal to form a matrix placed in a tubular jacket. At least the tubular jacket is elastically deformed by successively exerting a substantially linearly and radially inwardly directed force on the peripheral surface of the tubular jacket, as seen in circumferential direction of the tubular jacket. An apparatus for producing a metallic honeycomb body includes at least two mutually movable and variably spaced apart pressure elements for receiving the honeycomb body therebetween and bringing the two pressure elements to bear against the peripheral surface of the tubular jacket, to successively exert a substantially radially inwardly directed force on at least part of the periphery of the tubular jacket for elastically deforming at least the tubular jacket.

Abstract: A method for producing, by forming techniques, an undercut profile in the outer circumferential face of cylinder liners to be cast in place in a crankcase, characterized by the introduction of a bracing inner core into the cavity of a cylinder liner, the introduction of the cylinder liner equipped with bracing inner core into a first forming die equipped on its working faces with a serrated profile, the pressing of the first forming die against the outer circumferential face of the cylinder liner, thus producing a complementary profile in the outer circumferential face, the introduction of the cylinder liner equipped with bracing inner core into a second forming die equipped on its working faces with a smooth surface, and the pressing of the second forming die against the outer circumferential face of the cylinder liner equipped with the complementary profile.

Abstract: The method and apparatus for manufacturing of folded-fin heat sink assemblies provide laser welding of the folded-fin assembly to the base, core or other heat-absorbing mass, at selected locations, prior to brazing or otherwise bonding. This ensures proper positioning of the folded-fin assembly relative to the heat-absorbing mass, and proper spacing between adjacent fins.

Abstract: A method of assembling an apparatus such as a fuel injector (200) wherein parts or components are selected based on their capacity to compensate for variations in timing and delivery contributed by the tolerance variations of components assembled or measured for assembly prior to the selected components. The method involves an apparatus such as an injector of the type including a set of input parameters, a set of control parameters, and a set of observed performance parameters wherein the method includes the steps of performing tests (214, 216, 218, 220) on the injector (14) to measure the values of the input parameters and determining the values of the set of control parameters (222) using the set of input parameters to reduce performance parameter variability of the final assembly. The method also includes the steps of selecting (232, 234), for each control parameter, the component associated therewith and, assembling the selected components into the injector (14).

Abstract: A roller assembly for use, for example, in agricultural machines where the roller assembly has an exterior surface portion adapted to contact a conveyor element supporting the agricultural products and a bearing sub-assembly positioned about an axle in the center of the roller assembly. The bearing sub-assembly has at least one bearing, at least one sealing element having an elastomeric sealing portion positioned outboard of the bearing and at least one standoff also positioned outboard of the bearing. The standoffs have grooves in their outer dimension adapted to receive the elastomeric sealing portion. The diameter of the standoffs are about the same as the diameter of the elastomeric sealing portion. The horizontal length of the standoffs may also be chosen so as to offset the exterior surface portion of the assembly a predetermined distance with respect to the conveyor element.

Abstract: The present invention provides a rim rolling method in which slotting can be correctly performed at an arbitrary position in the thickness direction of an outer peripheral face of a blank. A preforming roller die 7 is prepared in which a groove 8 is formed in an outer peripheral face 7a in the circumferential direction, and a groove forming blade portion 9 is protruded in the circumferential direction on an inner bottom portion of the groove 8. A preforming process is performed in which the groove 8 and the groove forming blade portion 9 of the preforming roller die 7 are pressed against an outer peripheral portion 10 of a disk-like metal blank 1, to form an outer peripheral groove 11 in the whole outer peripheral portion of the blank 1 by the groove forming blade portion 9.

Abstract: A screen media (200) for use in screening pulp slurry has a first side (204) and a second side (206). The pulp slurry is fed from the first side of the screen media to the second side of said screen media through a plurality of screening passages (205). Each said screening passage include a contour cut (210) formed in the first side, a back groove (208) formed in the second side, and a residual thickness (234) between the contour cut and the back groove. An elongate slot (235) is formed in the residual material, and the residual thickness has a substantially uniform thickness about the elongate slot. Where the slot extends completely through the residual material it defines a through-slit (236) through which slurry flows and is filtered.

Abstract: A thruster device and associated methods are provided. The thruster device comprises a frustoconical inner layer and a frustoconical outer layer that surrounds the inner layer such that the inner and outer layers cooperate to define a spiral flow passage therebetween. An outlet, such as a nozzle, is attached to an exit end of the thruster device such that the outlet is in fluid communication with the spiral flow passage. In one embodiment, the thruster device includes an end flow cap that is also attached to the exit end and establishes the fluid communication between the spiral flow passage and the outlet. The end flow cap includes at least one channel for directing the propellant from the spiral flow passage to the outlet. The design of the thruster device allows the frustoconical inner and outer layers to be assembled without galling or damaging the spiral flow passage.

Abstract: An apparatus and an associated method are utilized to make a rotor core. The apparatus includes a support for supporting a lamina stack that has an axis extending along the stack. The apparatus includes a plurality of collets. A collet moving mechanism moves the collets radially inward against the lamina stack. An arrangement receives casting material that is cast to the lamina stack while the collets are against the lamina stack.

Abstract: A stator core extends along a longitudinal axis and includes a yoke, and a plurality of radially-inwardly projecting teeth separated by intervening slots. A radially innermost portion of each tooth initially includes a pair of legs separated by a recess disposed therebetween. The conventional tooth tips are unformed in the first stage, thereby defining an increased-size slot opening for allowing the insertion of stator windings. In a second processing stage, after the core itself has been manufactured and wound with stator windings, the legs are cold-formed in order to form tooth tips, which define a reduced-size slot opening to provide a magnetic flux path and provide a wire retention function. A higher stator slot fill is provided, which allows and enables higher generator efficiencies and output for a given package size.

Abstract: A method of manufacturing a gas turbine engine fan blade (10) comprises forming three metal workpieces (50,52,54). A metal slab (30) is upset forged at both ends (32,34) to produce a metal block (40) with increased thickness (42,44) extending from opposite surfaces (36,38). The metal block (40) is cut in an inclined path to form two of the metal workpieces (50,52). The metal workpieces (50,52,54) are assembled into a stack (56) so that the flat surfaces (38,42,46,48) are in mating abutment. Heat and pressure is applied across the thickness of the metal workpieces (50,52,54) to diffusion bond the metal workpieces (53,52,54) together to form an integral structure (100). The integral structure (100) is hot creep formed and superplastically formed to produce the required aerofoil shape and the thickened end is machined to form the blade root (26). The method enables thinner metallic workpieces with better microstructure to be used and increases the yield of metallic workpieces.

Abstract: A pressure roller for a fixing device is manufactured by extruding silicone rubber on a shaft, foaming the extruded silicone rubber, subjecting the foamed silicone rubber to primary and secondary heat treatments, polishing the heat-treated silicone rubber, and then disposing the polished silicone rubber in a resin tube. In accordance with one embodiment, the pressure roller includes a shaft, a first silicone rubber layer formed on the shaft so as to surround the shaft, a resin tube formed on the first silicone rubber layer so as to surround the shaft, the resin tube having extensions at opposite ends thereof, each extension extending beyond the opposite ends of the first silicone rubber layer, and second silicone rubber layers formed at respective opposite ends of the first silicone rubber layer between the extensions of the resin tube and the shaft. The second silicone rubber layers serve to couple the first silicone rubber layer to the resin tube.

Abstract: A method is provided for forming enlarged cylinder bores in an engine based on a family of internal combustion engines having an original cylinder bore axis for each bore, wherein each cylinder bore is constrained against enlargement toward one side. The method includes providing an offset axis parallel to the original cylinder bore axis and spaced toward an opposite side of the cylinder bore by a dimension equal to one half of a predetermined bore diameter enlargement, and centering the enlarged cylinder bore on the offset axis. The method preserves a minimum wall thickness from the cylinders to camshaft bores between the cylinder banks while the outward enlargement dimension is preferably limited to a value which does not require changing the cylinder head bolt pattern or reduce the wall thickness below minimum values in other portions of the cylinders.

Abstract: Disclosed herein is an apparatus and method for manufacturing an exhaust emission control device, and the exhaust emission control device formed thereby. The method of manufacturing an exhaust emission control device, comprises: disposing a viscous-elastic material around at least a portion of a substrate to form a wrapped element. The wrapped element is compressed at a first compression rate and at a second compression rate that is slower than the first compression rate, and the wrapped element is introduced into a housing.

Abstract: An apparatus is disclosed for expanding the ends of a sleeve that has previously been installed into a defective section of inaccessibly located soft metal heat exchanger tubing. The sleeve ends are expanded using an apparatus of a plastic bladder connected to a series of connectable sections of sufficient length to reach the ends of the installed sleeve. The expansion is performed by locating the plastic bladder inside the sleeve at one end and hydraulically compressing the plastic bladder and forcing it to expand in diameter as a function of Poisson's ratio to thus expand the sleeve end into the tube.

Abstract: A differential shaft for a strip-producing machine comprises a differential shaft mainly made up of a shaft core, a securing plug disposed at one end of the shaft core, a multiple of rolling tubes and partition rings each alternatively positioned with the other and sleeve joined in a sequence onto the shaft core thereof, and a fixing plug clamping tight of the partition rings and the rolling tubes thereof from the other end of the shaft core. The partition rings are stably located onto the shaft core via a pair of position pins engaged with a pair of stepwise retaining recesses of the shaft core with a ring gap A formed between the partition rings and the shaft core to reduce the friction thereof when the rolling tubes proceed with the strip production, effectively prolonging their lifespan in use.

Abstract: A method and apparatus for repairing a casting in a cold metal repair process includes a plurality of drilling fixtures which facilitate the creation of one or more lock receiving recesses positioned generally transverse to the casting crack. The lock receiving recesses are formed of a single sized circular bore combination having alternating double and single circular portions to maximize strength. A plurality of correspondingly configured metal locks are inserted into the lock receiving recesses to provide transverse metal locks drawing the casting portions on each side of the crack together. A plurality of threaded bores are formed along the remainder of the casting crack in overlapping spacing which receive a corresponding plurality of stitching pins. The stitching pins each define threaded shaft portions having pointed ends and undersized major pitch diameter threads adjacent the pointed ends.

Abstract: A method of assembly for a gas turbine engine and nacelle includes the steps of aligning the nacelle assembly and the engine substantially parallel to the rotational axis of the engine and translating the nacelle assembly along the axis to engage a first and a second attachment and securing the first attachment.

Abstract: The present invention relates to a method for repairing turbine engine components, such as vanes and blades, which have airfoils. The method broadly comprises removing oxidation debris from portions of the component by blending areas exhibiting thermal barrier coating spall and/or oxidation damage, removing a ceramic insulating layer from the component, and blending surfaces of the component where nicks, dents, and/or cracks are located. If the component has a depleted aluminum zone, the depleted zone is either removed or replenished. Further, a tip portion of the component, if damaged, is restored and tip abrasives are applied to restore the component's cutting ability. Thereafter, a ceramic coating is applied to the component.

Abstract: The present invention provides a scrapping system of used-automobiles, comprising a reusable parts collecting station A, a liquid collecting station B for collecting liquids including fuel, oil and coolant, a prearrangement station C for collecting chlorofluorocarbon, batteries, seats, tires, etc., a functional parts collecting station D for collecting suspension device, etc., a non-ferrous metal parts and resin parts collecting station E for collecting motors, harnesses, instrument panels, bumpers, etc., and a pressing station F for pressing a body of the used-automobile which has been processed in the above stations, wherein the stations sequentially arranged.