Abstract: A hydrodynamic machine, and especially a hydrodynamic coupling, for a turbine compound system includes (a) a bladed primary wheel and a bladed secondary wheel which together form an operating space which is filled or can be filled with operating medium, and (b) a housing which encloses the primary wheel and the secondary wheel and which is manufactured from sheet metal. The housing is manufactured from at least two separate sheet metal components which are placed on the primary wheel and/or the secondary wheel, are aligned with each other at a joint abutment location, and are welded together. In the area of the welded joint abutment, a relief which is open toward the joint abutment is provided and which extends along the joint abutment in the surface of the primary wheel and/or the secondary wheel.

Abstract: A centrifugal pump comprising a pump housing made of injection-molded plastics with a first housing part, which is designed as a single piece with a suction connection and a pressure connection, and comprises a sealing area, by means of which said first housing part is joined in a liquid-tight manner to a second housing part, that receives an electric motor, and a motor housing part. In this centrifugal pump, very good leak tightness is achieved with minimum number of parts, minimum weight and minimum assembly costs with universal applicability without impairing the visual overall impression of the centrifugal pump. This objective is achieved in that the second housing part is made of a material that is permeable to laser light of a wavelength or a wavelength range, and the first housing part is made of a material that absorbs the same laser light, and the first housing part and the second housing part are heat-sealed to one another.

Abstract: A cooling fan includes a fan housing, a base, a rotor, a stator, and a fan guard. The fan housing forms an intake and an outlet at two opposite sides thereof, respectively. The base is arranged at the outlet of the fan housing. The stator is mounted on the base. The rotor is rotatably supported by the stator. A plurality of stationary blades extends from the base to the fan housing. The fan guard attaches to the outlet of the fan housing. A cylinder is arranged at a center of the fan guard and attaches to the base of the fan housing. A plurality of guard blades extend radially and outwardly from the cylinder. Each guard blade and the nearest stationary blade define a gap therebetween along a circumference of the cooling fan.

Abstract: A unique heat treat method for relieving stresses caused by a repairing weld joint in a full hoop part heat treats locally, at the location of the weld joint, and at a diametrically opposed location. By providing the diametrically opposed heat treat location, the present invention relieves stresses caused by the weld joint, without creating any additional residual stress in the weld joint.

Abstract: A housing for a radial flow compressor, particularly for a turbocharger, comprises a first housing part and a second housing part joined together to form at least part of the housing, each of the housing parts comprising at least one cavity, said cavities in fluid communication, when the housing parts are juxtaposed, forming a cavity system into which a fluid joining compound, such as an adhesive, thermoplastic material, etc., is introduced to form a solid joint of said both housing parts, wherein the housing parts are dimensioned such that a gap for introducing the fluid joining compound extends from a free housing surface of the housing parts when juxtaposed, along facing joining surface sections of the housing parts, and ports into the cavity system.

Abstract: A progressing cavity pump/motor includes an upper stator tube (14), a lower stator tube (16), a rotor (20) sitting between the upper and lower stator tubes, and a coupling assembly (30) interconnecting the stator tubes comprising an outer sleeve (32), an inner sleeve (36) and a nut (60) for threaded engagement with at least one of the sleeves to bring a stop surface on the inner sleeve into mating engagement with the stop surface on the outer sleeve. The pump/motor is usually assembled in the field while maintaining precise axial and rotational positioning of the stator tubes.

Abstract: The present invention broadly comprises a torque converter including a cover arranged to accept torque from a drive unit and an impeller. The cover and the impeller are joined by a crimped connection. In some aspects, the converter includes a sealing element disposed between the cover and the impeller and the sealing element is selected from the group consisting of an o-ring and a gasket. In some aspects, the cover is a cast piece. In some aspects, the cover is formed by a process selected from the group consisting of: molding, compression molding, and pressed metal forming. In some aspects, the cover is a stamped metal piece. The present invention also broadly comprises a torque converter including a cover, an impeller, and an induction brazed connection joining the cover and impeller. In some aspects, the cover further comprises axially disposed fingers engaged with the impeller.

Abstract: A gas turbine engine case having a working fluid flow, includes inner and outer case portions defining an annular duct for directing the working fluid flow, and a plurality of struts positioned within the annular duct and extending between the inner and outer case portions. The struts are welded to the inner and outer case portions with a first weld along a peripheral line of the respective struts and with second weld, of fillet type, in selected locations for additionally connecting a portion of each strut to the respective inner and outer case portions.

Abstract: A unique heat treat method for relieving stresses caused by a repairing weld joint in a full hoop part heat treats locally, at the location of the weld joint, and at a diametrically opposed location. By providing the diametrically opposed heat treat location, the present invention relieves stresses caused by the weld joint, without creating any additional residual stress in the weld joint.

Abstract: A rotary compressor including a case defining an external appearance of the compressor. A compressing device is arranged inside the case, and a lower cap is fixed to a lower end of the case. The rotary compressor further includes a weld zone to fix the compressing device and lower cap to each other.

Abstract: An inlet assembly for an aircraft engine nacelle includes an inner barrel, an outer barrel radially spaced from the inner barrel, and a rear support for supporting the outer barrel relative to the inner barrel. The rear support includes at least one radially extending stiffener and at least one energy absorber defining a zone of deformation adjacent the inner barrel. The rear support is deformable in the zone of deformation in response to forces applied during a fan blade-out event to prevent fracture of the rear support.

Abstract: An apparatus, especially a steam turbine, including a first delimiting part and a second delimiting part is provided. The delimiting parts are attached to one another forming a joint and enclosing at least a part of a first pressure chamber. A shielding element is also provided on the sides of the delimiting parts facing towards the first pressure chamber and is arranged to form a seal completely covering the joint, so that a cavity is formed between the delimiting parts and the shielding element. A line is routed in the cavity connecting the cavity to a second pressure chamber. In addition, a method for decreasing the force acting on a joint, which is formed by the joining together of a first delimiting part and a second delimiting part of an apparatus, especially a steam turbine, and for reducing the attachment forces acting on the joint is provided.

Abstract: Twin-flow turbo-jet engine, comprising a cylindrical casing externally defining an annular flow space for a secondary flow, wherein the cylindrical casing is formed from a lattice framework and from removable cowling panels fixed to the framework, said framework comprising an upstream annular flange for fixing to an intermediate housing, a downstream annular flange for connecting to an exhaust housing and rigid beams parallel or inclined relative to the axis of the turbo-jet engine, connecting the two flanges to one another.

Abstract: A centrifugal pump includes a diffuser section for decreasing a velocity of the fluid discharged from an impeller, a return vane for leading the fluid which has passed through the diffuser section to a discharge side, and a main plate to which the diffuser section and the return vane are fixed.

Abstract: A casing includes an upper casing and a lower casing jointed in a dividable manner, and a sealing structure that suppresses outward leakage of gas from a joint area between the upper casing and the lower casing. The casing 1 also includes: an upper protruding element that protrudes from an outer circumference of the upper casing; a lower protruding element that protrudes from an outer circumference of the lower casing; and an intermediary member that is arranged on outer circumferences of the upper protruding element and the lower protruding element. The joint area between the upper casing and the lower casing is extended by the upper protruding element and the lower protruding element, and the intermediary member is welded to the upper protruding element and the lower protruding element, at a position offset from the joint area.

Abstract: Due to variations arising during manufacturing, axial fans often are slightly imbalanced, resulting in noise during operation, which is undesirable in many contexts, for example when the fan is used for ventilation purposes in a motor vehicle. A fan with improved vibration and noise damping can be achieved by elastically suspending the fan wheel within a first ring formed of a hard plastic, the first ring having a tubular extension formed of a softer plastic, and serving to mechanically connect the first ring to a surrounding annular carrier part. Optionally, the first ring and extension unit can include a spring element. Preferably, the first ring and tubular extension are produced by a multi-component forming technology such as two-plastic technology. The fan is preferably driven by an electronically commutated motor (ECM).

Abstract: A gas turbine casing for enclosing a gas turbine component, such as a fan, a compressor, a combustion chamber or a turbine is provided. The casing includes a double wall structure having a first inner tube and a second outer tube, the first inner tube and the second outer tube extending around a geometric longitudinal axis, which is intended to basically coincide with a longitudinal geometric central axis of a gas turbine. The first inner tube and the second outer tube overlap one another when these are viewed in a radial direction, a gap being formed between the outer boundary surface of the first inner tube and the inner boundary surface of the second outer tube. The double wall structure furthermore has a plurality of stays which take the form of plates, which are spaced at an interval from one another and extend radially between the first inner tube and the second outer tube, and which stays connect the first inner tube and the second outer tube to one another.

Abstract: A hydrodynamic machine, and especially a hydrodynamic coupling, for a turbine compound system includes (a) a bladed primary wheel and a bladed secondary wheel which together form an operating space which is filled or can be filled with operating medium, and (b) a housing which encloses the primary wheel and the secondary wheel and which is manufactured from sheet metal. The housing is manufactured from at least two separate sheet metal components which are placed on the primary wheel and/or the secondary wheel, are aligned with each other at a joint abutment location and are welded together. In the area of the welded joint abutment, a relief which is open toward the joint abutment is provided and which extends along the joint abutment in the surface of the primary wheel and/or the secondary wheel.

Abstract: A torque converter including an input housing having an axial surface and a pump shell having an axial surface. The input housing and the pump shell being welded together and the pump shell or the input housing having a groove facing the other of the pump shell or output housing. The torque converter also including a ring located in the groove and contacting the other of the pump shell or input housing.

Abstract: Aspects of the invention are directed to a sealing system for the interface between a combustor liner and transition duct. The system includes a spring clip seal. A first end of the spring clip seal operatively engages the inner peripheral surface of the transition duct. A second end of the spring clip seal is indirectly attached to the liner by an insert disposed therebetween. The spring clip seal can be attached to the insert by any kind of welding process that does not involve melting of the spring clip seal and the insert, such as fillet welding. The insert and the liner can be attached in a similar manner. Because fillet welds are relatively easy to cut, the spring clip, insert and liner can be separated without the need for cutting any of these individual components. Thus, the system can facilitate the repair, disassembly and reassembly of the interface.

Abstract: An intermediate casing for use in a gas turbine engine comprises inner and outer casing walls 2, 4, a support plate 6, supporting an axial end of each of the casing walls 2, 4, a splitter 8, and an array of vanes 10. At least one of the casing walls 2, 4, the support plate 6, the splitter 8 and the array of vanes 10 is formed from at least one blank of sheet material, such as steel. The formation of one or more components of the assembly from a flat blank of material provides a significant reduction in manufacturing cost.

Abstract: Described is reinforcement of a fan case in a gas turbine jet engine. In one embodiment, a containment ring and a heat resistance ring are shrink interference fit on the inside diameter of the fan case, the containment ring where the large fan blades turn, and the heat resistance ring where heated air from backfiring heats up the fan case. In one example, the containment ring is made of a super alloy to provide added strength to the fan case should a fan blade break, containing the fan blade within the fan case. The heat resistance ring is made of titanium or other suitable material. Additionally, one or more stiffener rings may be shrink interference fit on the outside diameter of the fan case. The containment ring and stiffener rings can reduce the flight weight of the fan case and lower the material costs, while increasing the containment strength of the fan case. Other embodiments are described and claimed.

Abstract: An improved blower housing and method of manufacture comprising a wrapper wall sheet conjoined with a first side wall and a second side wall and held together with a seam interlocked with mating protrusions and apertures. The housing design may utilize different types and thicknesses of conjoined materials and reuse the components when separated. Unlike prior art blower housing seams, the present art provides a substantially smooth positive locking seam without the use of welds or fasteners.

Abstract: A method and apparatus of assembling a rotary machine includes providing at least one component. The component is at least one of a rotating member and a stationary member. The method and apparatus also includes coupling the component to a monocoque nacelle structure. The monocoque nacelle structure includes an outer shell that extends over at least a portion of the component.

Abstract: A wind turbine includes a nacelle connected to a unitary tube bedplate.

Abstract: A spiral for a turbomachine including reinforcing sheets which are partially located in the transition region between the spiral and parallel plate.

Abstract: An interturbine duct for channelling combustion gases between two axial turbine stages. The interturbine duct is made of sheet material to provide a relatively lightweight construction.

Abstract: A method is provided for making a repaired turbine engine stationary vane assembly including at least one airfoil bonded between spaced apart first and second platforms. The method comprises providing a first vane assembly member including at least a portion of the first platform, the airfoil, and a first segment of the second platform bonded with the airfoil. Also provided is a second vane assembly member including a second segment of the second platform with a recess of a shape and size sufficient to receive the first segment of the second platform. The first segment is placed in the recess after which the first and second segments are bonded, for example by brazing or welding. Provided is a more structurally sound repaired turbine engine stationary vane assembly including the first and second vane assembly members bonded together.

Abstract: A steam turbine including a rotor rotatable about an axis and a casing concentrically surrounding the rotor. A reduction in the starting times and reduced production costs may be achieved in that the casing includes a high-mass hollow-cylindrical basic carrier and a plurality of shells concentrically surrounding the basic carrier. The shells are each produced from a bent metal sheet and interspaces capable of being filled with steam are defined between adjacent ones of the plurality of shells.

Abstract: A housing part, which can be firmly joined to another housing part for the formation of a housing of a radial flow compressor, in particular a turbocharger. At least one open or closed channel portion is provided in each housing part so that when the housing parts are joined a channel system is formed which runs between the two housing parts. A free-flowing and hardening compaction material, such as an adhesive or a thermoplastic polymer, is inserted into the channel system for the formation of a firm bond between the two housing parts.

Abstract: A spiral casing for a turbine of a turbocharger is made from thin (0,2 to 2 mm thick) sheet metal. The spiral casing can be made from two matching parts and can be insulated.

Abstract: A compressor for receiving at least one compression element in a sealed container is provided. The sealed container comprises a container body and a cover member for blocking an opening of the container body, both of which are made of an aluminum material. The cover member is electrically welded to the container body over an entire circumference of the cover member, and thick ribs with a thickness dimension extending from a circumference portion to a central portion are formed with a predetermined pitch on the cover member. In this manner, an increase in the manufacturing cost and a reduction of the workability can be substantially suppressed, while the reliability of the sealed container of the compressor and the aluminum members assembled by arc welding can be substantially improved.

Abstract: The invention concerns a casing aggregate for the turbine of an exhaust turbocharger. The invention is identified by the following characteristics: a spiral casing adapted for surround the running wheel of the turbine; a tongue-like wall part (tongue) in the inside of the spiral casing; an inlet connection; an outlet connection; a flange to connect to a bearing casing; wherein the casing aggregate is manufactured of thin-walled precision casting; wherein the casing aggregate is made of at least two parts, so that at least one separation joint is present; and the separation joint is arranged as follows: it runs in an axially perpendicular level; it runs along the apex line of the spiral casing; it extends over an arc of a circle of approximately 270 degrees; it lies outside of the area of the tongue.

Abstract: A vehicle fan shroud made integrally with a coolant reservoir comprising a shroud unit molded from a non-transparent material with a flat flange portion and a hub portion for a radiator fan, and coolant reservoir having a shape that matches the configuration of the flange and hub, which is made from a semi-transparent material for observing the level of the coolant in the reservoir. The reservoir is made in the form of an open box and is welded to the flange portion with its open side so that the flange of the shroud closes the open part and forms a wall a wall of the reservoir. A distinguishing feature of the device of the invention is that a coolant supply nipple portion projecting from said top, a coolant supply tube located inside said coolant reservoir, and a drain pipe extended from said bottom portion are coaxial and molded integrally with the rest of the reservoir.

Abstract: A fixed guide vane assembly includes a circular casing composed of at least two parts (11) and supporting sectors (5), each composed of an inner segment (7) and an outer segment (6) connected by vanes (8). The parts of the casing and the sectors of the guide vane assembly are held together by a system forming a slide and a slider. An anti-rotation mechanism (30) is provided to prevent the sectors from rotating with respect to the casing.

Abstract: A water pump having a housing with an opening defined by an axial inner retention surface and a radial outer surface. A plug formed of sheet metal includes a radial closure portion surrounded by a continuous axial flange adapted to be press fitted into the inner retention surface of the housing. Before assembly, an adhesive is applied to either the axial flange of the plug or the inner retention surface of the housing. The plug is then pressed into the housing so that the flange of the plug engages the inner retention surface of the housing. After the adhesive sets, a water tight seal is formed between the plug and the housing adequate to hold pressurized coolant within the housing of the water pump.

Abstract: A gas turbine engine has an intermediate case. At least one compressor exit stator shroud is welded to the intermediate case.

Abstract: Some embodiments of the present invention provide a two-piece fan housing having a seam between first and second housing pieces. In some embodiments, a portion of the seam extends circumferentially about the fan housing while also extending axially. Also, some embodiments of the present invention provide an integrally-formed intake wall at or adjacent the fan housing intake aperture and extending axially into the fan housing. The axially extending intake wall can also extend radially inwardly to define an inlet restriction of the fan housing.

Abstract: Contoured intakes and fan housing assemblies for floor care machines are disclosed. In one embodiment, a contoured intake includes a contoured duct having a passage therethrough. The passage has a cross-sectional area progression that smoothly varies between a first cross-sectional area and a second cross-sectional area. Turbulence within the intake passage may be reduced or inhibited, and noise generated by the airstream within the intake passage may be reduced. In another embodiment, the contoured duct may include a bellmouth substantially surrounding the first open end that may inhibit the separation of the airstream within the intake passage. In a further embodiment, an airflow propulsion device for a floor care machine may include a motor having a drive shaft, a fan operatively coupled to the drive shaft, and a fan housing disposed about the fan and having a transition passage proximate the radially-outward ends of the vanes of the fan.

Abstract: Electronic system components are cooled using a field configurable pump comprising a selectable plurality of identical or nearly identical modular pump units. The pump units are disposed in a stacked arrangement and are fluidly connected to adjacent modular pump units via a removable coupling, preferably one of the quick-disconnect variety. Each modular pump unit comprises a housing, an impeller and a sealing mechanism. When disposed in a stack the combined pump structure is driven by a single motor. In this fashion, pump structures may be employed which are adaptable to heat flux demands imposed by the electronic components.

Abstract: The invention describes a temperature-stable protective coating over a metallic substrate surface (1), which coating includes at least one layer of material (4) consisting of MCrAlY, where M represents at least one of the elements selected from the group of materials consisting of Fe, Co and Ni. The invention also describes a production process for this coating.

Abstract: A turbomolecular pump including a cylindrical housing, and rotor and stator discs arranged in the housing and cooperating with each other to produce a pumping effect, with the cylindrical housing being formed of at least two housing parts separated along a cylinder axis and each formed, together with respective separated sections of the stator discs, as a one-piece unit.

Abstract: In a method for welding together two parts (12, 13), especially of a turbomachine, which are exposed to different temperatures, of which the first part (12) consists of a steel and the second part (13) consists of a nickel-base alloy which contains elements which are unfavorable for welding to steel, such as for example Nb, a crack-free welded joint is achieved by the fact that first of all an intermediate layer (18), in which the amount of unfavorable elements is progressively reduced from the inside outward, is applied to the joining surface (17) which is provided for the welding, and that then the second part (13), which has been provided with the intermediate layer (18), is welded to the first part (12).

Abstract: An improved pump shell for a multistage metal working pump includes a plurality of pump shell units housed in series within a hollow cylindrical casing and has the impellers driven by a shaft. Each pump shell unit has a inner shell which forms a holding end at one side and a sealing flange at another side. The holding end of one pump shell may align and engage precisely and easily with the sealing flange of an adjacent pump shell unit to form a smooth fluid passage from the inlet of the impeller through the inner shell so that pumping efficiency may be enhanced with less turbulence. The sealing flange, holding end and the casing also form a close annular compartment for holding a seal ring inside to provide effective sealing function. The pump shell may be produced by stamping at low cost.

Abstract: A throttle device for liquid or gaseous media including a turbine which drives a compressor, a pump or a generator, and in which throttling of liquid or gaseous flow occurs by modifying the turbine load state.

Abstract: The invention relates to a centrifugal pump and it's manufacturing process, more particularly to a pump formed by pressing and welding metal sheet. In this invention, comprising a pump casing, an impeller, labyrinth ring supports, labyrinth rings, a real cover and a chassis, characterized in that the manufacturing process of said pump casing includes following steps: using a female mold made by wear-resisting metal, the female space in said female mold is a near 360° integrated spiral with radial expanded gradually shape and approximately semicircle cross section, using a male mold made by pressing deformable soft or elastic material, putting a tubular member with flange made by metal sheet between said molds, closing said molds, expanding said male mold made by soft or elastic material. Said tubular member will be expanded into a near 360° integrated spiral casing with radial expanded gradually shape and approximately semicircle cross section.

Abstract: A gas turbine engine rotor blade containment assembly (38) comprising a generally cylindrical, or frustoconical, first metal casing (40) and a plurality of generally cylindrical, or frustoconical axially spaced second metal casing is (54, 56 & 58). The second metal casings (54, 56, 58) surrounded and abut the first metal casing (40). The first metal casing (40) is relatively hard and tough to contain a fan blade (34). The second metal casings (54, 56, 58 are relatively soft and lightweight to stiffen the first metal casing (40) and fan blade containment regions (A, B & C). The second metal casing (54, 56, 58) are arranged coaxially with the first metal casing (40). One of the second metal casing means (56) is in a plane (Y) containing the fan blades (34) of the gas turbine engine (10). The first metal casing (40) comprises steel and the second metal casing is (54, 56, 58) comprise aluminum. The fan blade containment assembly (38) is lighter for large diameter turbofan gas turbine engine (10).

Abstract: A blade containment structure for turbomachinery, such as a high bypass turbofan engine. The blade containment structure includes a first casing member having a wall that defines an inner containment shell that immediately surrounds the blades of the turbomachine, and a second casing member assembled to the first casing member. The second casing member has a wall that defines an outer containment shell that surrounds the inner containment shell, such that a cavity is defined by and between the inner and outer containment shells. The first casing member is formed from a high-toughness material such as steel or a nickel-base alloy, while the second casing member is formed from a lower-weight and potentially lower-toughness material as compared to the material of the first casing member.

Abstract: A compressor which can be easily assembled and can prevent damage of seal members is presented. Its assembling method includes of (a) a step of feeding a front casing having a first inner circumference, a second inner circumference, an opening, a bottom, and a side wall, compression units having a first fitting portion and a first seal groove, and a rear cover having a second fitting portion and a second seal groove, (b) a step of installing a first seal member in the fist seal groove, (c) a step of installing s second seal member in the second seal groove, (e) a step of installing the fixed scroll on the front casing, while fitting the first fitting portion to the first inner circumference, and (f) a step of installing the rear cover to the front casing so as to cover the opening, while fitting the second fitting portion to the second inner circumference.