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7377037 |
Fillet machining method without adaptive probing
A method for finishing a part having excess material includes generating one or more surfaces on a model of the part to be machined, creating a machining tool path drive geometry, using the machine...
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7334331 |
Methods and apparatus for machining components
A method of using a machining assembly to machine a plurality of different turbine components that include a dovetail having a contoured profile. The method includes removably coupling a first set...
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7225539 |
Manufacturing method especially for integrally bladed rotors
A method for the manufacture of components composed of difficult-to-cut materials for gas turbines, in particular for manufacturing integrally bladed rotors for gas turbine aircraft engines, by...
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7210226 |
Method of manufacturing an impeller
A method of manufacturing an impeller includes the steps of: (a) forming an impeller having a plastic disc body and magnetisable material distributed and encapsulated within the body; (b) testing...
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7198472 |
Platform mounted components
A platform arrangement for components such as aerofoil vanes 1, 21 is provided whereby the necessary rigidity provided by the platform does not create excess problems with respect to stress and...
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7117595 |
Method for manufacturing a conveying element of an axial type flow meter used for drink vendors
A device is described for measuring a fluid, to be used advantageously in mixing devices for ingredients of liquid drinks. The device comprises an impeller, a diffuser upstream from the impeller...
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7107886 |
Production of disc components
A disc component for a gas turbine engine is produced from a workpiece by a sequence of machining operations. During the machining operations, the workpiece is supported by a fixture engaging...
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7069654 |
Rotor balancing
A method of balancing a rotor ( 10 ), the said method comprising the steps of determining the position of the center of mass of a rotor ( 10 ) to be balanced prior to the rotor ( 10 ) being...
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7024744 |
Frequency-tuned compressor stator blade and related method
A method of tuning a compressor stator blade having a base portion and an airfoil portion to achieve a desired natural frequency, includes a) identifying the natural frequency of the compressor...
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6938447 |
Apparatus and method of correcting deformation of gas turbine blade
An apparatus for correcting deformation of a gas turbine blade includes a stationary die fixed to a backside of a tip shroud of a gas turbine blade to hold a back surface thereof and a pressing die...
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6935817 |
Airfoil machining using cup tool
Airfoil blades are machined in a workpiece using a circular machining tool defining a machining ring having inner and outer circumferential surfaces. The airfoil blades are created by generating...
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6935021 |
Method for the plastic molding of the hub recess for fast running turbine component
A method for plastic molding of a hub recess for a fast-running turbine component is provided. The plastic molding of the hub recess occurs by hydraulic expansion, by way of a hydraulic fluid...
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6905312 |
Method of manufacturing an integral rotor blade disk and corresponding disk
A method of manufacturing a blisk comprises the steps of cutting a disk to a rough shape comprising a hub with a plurality of blade blanks projecting radially therefrom, machining each blade blank...
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6869259 |
Milling method
A milling method is provided for the manufacture of components composed of difficult-to-cut materials for turbomachines, aircraft and spacecraft by producing recesses with one or more side walls....
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6478545 |
Fluted blisk
A blisk includes a disk having a rim. A row of blades extends outwardly from the rib in a unitary construction. The blades are spaced apart in the disk rim to define fluted inner flowpath channels...
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6412173 |
Miniature turbomolecular pump
The present invention provides a very compact, lightweight, turbomolecular pump for evacuating a chamber at volumetric flowrates of less than 10 liters per second. In one embodiment a...
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6340424 |
Manufacture of complexly shaped articles using an automated design technique
An integrated compressor disk and compressor blade (BLISK) having a specified shape is prepared by an electrochemical machining process having a cathode defined by a set of cathode shape...
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6247638 |
Selectively reinforced member and method of manufacture
The present invention contemplates a method of fabricating a ring or disk having select regions reinforced with a metal matrix composite material. In one embodiment the method includes forming the...
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6209198 |
Method of assembling a variable stator vane assembly
A method and fixture assembly for assisting in the matching and assembly of components of a variable stator vane assembly of a gas turbine engine. The method generally entails a stator vane...
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6109869 |
Steam turbine nozzle trailing edge modification for improved stage performance
In a reverse design for partitions of a steam turbine having decreased throat dimension therebetween with increased radial height, the trailing edges are set back from approximately mid-span to a...
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6082000 |
Method for producing an impeller for turbine pumps provided with vanes having an improved profile
A turbine pump impeller provided with vanes of the double-curvature type, obtained monolithically by die casting and comprising, between two disk-shaped elements, a plurality of double-curvature...
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6029347 |
Method of manufacturing a turbine of thermostructural composite material, in particular of small diameter
A method of manufacturing a turbine comprising a plurality of blades disposed between two end plates and defining flow passages between an inner ring and an outer ring. The turbine is formed by...
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6006407 |
Apparatus for repairing a turbine engine vane segment
A method and apparatus for repairing a turbine engine vane segment of at least one airfoil disposed between band or platform members originally assembled in a designed relationship uses locating...
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5964398 |
Vane member and method for producing joint
A vane member comprises a first member and a second member, the first member and the second member are joined by that an insert member whose melting temperature is lower than melting temperatures...
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5758416 |
Method for repairing a turbine engine vane segment
A method for repairing a turbine engine vane segment of at least one airfoil disposed between band or platform members originally assembled in a designed relationship uses locating features...
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5733080 |
Process for milling a turbine-blade profile extending along a main axis
The invention relates to a process for milling a turbine-blade profile which extends along a main axis from a workpiece. The turbine blade has a convex suction side and a concave pressure side. The...
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5556257 |
Integrally bladed disks or drums
A method of making an integrally bladed disc for a gas turbine engine, the disc having at least one blade the radially outermost surface of which is coated with a material harder than that of the...
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5531633 |
Method of machining a metal workpiece
In combination with a lathe having a headstock and a tailstock, a method of machining a metal workpiece includes: forming in a first end of the metal workpiece a cavity; positioning a spherical...
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5507617 |
Regenerative turbine pump having low horsepower requirements under variable flow continuous operation
A regenerative turbine pump apparatus which includes a housing having an inlet and an outlet and a generally circular impeller having a circumference and a geometric axis. The impeller is mounted...
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5465482 |
Method for matching the flow capacity of a radial turbine of a turbocharger to a capacity of an internal combustion engine
A method for matching the radial turbines of turbochargers, to the respective internal combustion engine, includes managing with a relatively small expenditure of material and labor time and with...
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5425174 |
Method for preparing a ceramic gas-turbine nozzle with cooling fine holes
To improve the precision of the cooling fine holes of a large-sized and complex-shaped ceramic gas-turbine nozzle with fine cooling holes, a ceramic gas-turbine nozzle with fine cooling holes has a...
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5369882 |
Turbine blade damper
A generally wedge-shaped vibration damper for rotor blades of a gas turbine engine has a pair of scrubbing surfaces and is loosely retained in a pocket incorporated in the rotor blade platform. The...
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5364250 |
Oil-free screw compressor and method of manufacture
A method of producing an oil-free screw compressor has the following steps: preparing a semi-finished metallic female rotor which has a spiral profile, and a semi-finished metallic male rotor which...
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5339521 |
Machining method of ceramic turbine rotor
A machining method of a ceramic turbine rotor having a hub portion integrally formed with a plurality of radial blades, the hub portion having a front end to be centered during a finishing process...
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5305520 |
Method of making fibre reinforced metal component
A ceramic fibre reinforced metal rotor with integral rotor blades is manufactured using a continuous strip of unidirectional ceramic fibres in a metal matrix. The continuous strip of ceramic fibres...
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5197190 |
Fabrication of repair method for an integrally bladed rotor
A blade is formed from solid stock, leaving a box of material around the block. Instead of removing the box at this time, the entire box is bonded to a blade stub. The box facilitates handling and...
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5188514 |
Process for manufacturing an impeller by electrical discharge machining and articles so obtained
A process for manufacturing impellers of turbine pumps provides for subjecting disks corresponding to the impeller to be obtained to electrical discharge machining, using tools in form of plates...
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5113654 |
Securing structure and method of blade for torque converter
A securing structure and method of a blade for torque converter for use mainly in industrial construction vehicles to provide its rigid and easy-to-manufacture construction. The structure includes...
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5111576 |
Method of making a flexprop
A grenade device for use with and for ejection from an artillery shell is ovided. The device includes a stabilizing propeller and a grenade body. The propeller has two opposite blades disposed on...
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5109606 |
Integrally bladed rotor fabrication or repair
A blade holder for holding blades on an integrally bladed rotor has two legs located outboard of the blade in its installed position. A collar on each blade has holes for bolting the collar to the...
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5084965 |
Process to cut hour glass screws
Method and device for grooving an hourglass screw wherein a tool shaft having an axis transverse to the screw blank has a tool movable selectively stepwise relative to the shaft when the tool is...
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5075964 |
Method of making a cooling fan rotor for a rotating electrical machine in particular for an alternator for an automotive vehicle
A cooling fan rotor for a rotating electrical machine such as an alternator for an automotive vehicle, has n ventilating blades. The rotor is made by a method including the following steps: an...
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5059095 |
Turbine rotor blade tip coated with alumina-zirconia ceramic
A rotor blade is for a gas turbine engine having a plurality of rotor blades and a substantially coaxial shroud encompassing the tips of the blades. A ceramic layer is bonded to the blade tip, the...
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5056989 |
Stage replacement blade ring flow guide
Power output of a steam turbine is increased by removal of at least one stage of blading in order to increase mass flow through the turbine. A flow guide or annular ring is installed in the space...
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4838069 |
Apparatus for fabricating integrally bladed rotors
A method and apparatus are disclosed which are useful for fabricating integrally bladed rotors. In particular, the method and apparatus are used to increase the twist of the blades on the rotor...
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4775270 |
Impeller of centrifugal fluid-type rotary machine and manufacturing method thereof
An impeller of a centrifugal fluid-type rotary machine includes impeller blades each having a concave and convex surface of which the shape is formed of parallel generatrices inclined with respect...
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4764658 |
Process and apparatus for welding steam turbine diaphragms
The welding of the body and of the ring with the distributor of a steam turbine diaphragm is carried out in four different areas holding an assembly, formed by two semi-diaphragms, in a...
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4751123 |
Process for manufacturing a turbine or compressor wheel made of composite material and wheel thus obtained
This invention relates to a process for manufacturing a turbine or compressor wheel made of composite material, comprising the following steps of: making at least two helicoidal textures each...
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4705463 |
Compressor wheel assembly for turbochargers
A compressor wheel assembly for turbochargers and the like comprises a compressor wheel including a boreless hub formed integrally as by casting with a circumferential array of aerodynamically...
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4659288 |
Dual alloy radial turbine rotor with hub material exposed in saddle regions of blade ring
A dual alloy radial turbine rotor with high tensile strength hub material exposed in the saddle regions between the blades to prevent fatigue that causes cracks in the saddle regions is...
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