Abstract:
A turbine engine air blower including a rotor disk that includes, on an outer periphery thereof, longitudinal ribs, each including a radial lug for attaching the disk onto a downstream compressor rotor. The flanks of the lugs form abutments for holding vanes that are mounted onto the disk. A mechanism protecting flanks of the lugs is circumferentially inserted between the lugs and the vanes.
Abstract:
A sliding member for a compressor includes a base metal, a first layer and a second layer. The base metal is made of an aluminum-based metal. The first layer is formed on or over the base metal and made of a nickel-based plating layer containing at least one material of nitrogen (N), silicon (Si), titanium (Ti), chromium (Cr) and aluminum (Al) as an additive. The second layer is formed on the surface of the first layer and made of a diamond-like carbon layer containing the same additive as the additive contained in the first layer.
Abstract:
Turbine components are often shipped individually and are not shipped assembled into a turbine. To this end, the turbine blade has to be protected of external stresses and external damage. This is done by an easily removable protective coating that easily evaporates during the first operation of the newly produced or restored component, so that the protective coating does not have to be removed in an additional operational step before installation.
Abstract:
A liquid ring pump is provided that includes an annular housing having an inner surface forming a housing cavity. The annular housing is filled with an operating fluid during operation of the pump. The operating fluid forms an eccentric liquid ring in the annular housing during operation of the pump. A rotor is disposed in the housing cavity and includes a plurality of rotor blades. A shaft extends into the annular housing into the housing cavity. The plurality of rotor blades extend radially outward from the shaft toward the inner surface of the annular housing. A liner formed from a corrosion resistant material is disposed substantially flush with at least a portion of the annular housing inner surface opposite a plurality of rotor blade ends.
Abstract:
Blades, turbine blade assemblies, and methods of forming blades are provided. The blade includes an airfoil including a convex suction side wall, a concave pressure side wall, a leading edge, a trailing edge, a root, and a tip, the convex suction side wall, the concave pressure side wall, and the tip each including interior surfaces that together define an internal cooling circuit, the airfoil including a single crystal superalloy, and a cladding layer disposed over the tip, the cladding layer including a zirconia grain stabilized platinum alloy.
Abstract:
A method is provided for engineering a single crystal cast gas turbine engine first component for cooperating with a second component. An at least local first operational stress on the first component is determined. The first operational stress has a first direction. A crystal orientation within the component or a physical configuration of the component is selected so that the first operational stress produces a desired engagement of the first component with the second component associated with either a negative Poisson's effect or high Poisson's effect in a second direction. Single crystal or highly textured iron- and nickel-base alloys enable one to use such effect in high temperature and/or corrosive environments.
Abstract:
High-temperature steam at 620° C. or higher is introduced to a reheat steam turbine 100, and a turbine rotor 113 of the reheat steam turbine 100 includes: a high-temperature turbine rotor constituent part 113a positioned in an area extending from a nozzle 114a on a first stage to a moving blade 115a on a stage where temperature of the steam becomes 550° C. and made of a corrosion and heat resistant material; and low-temperature turbine rotor constituent parts 113b connected to and sandwiching the high-temperature turbine rotor constituent part 113a and made of a material different from the material of the high-temperature turbine rotor constituent part 113a.
Abstract:
A heat transfer system is provided for a turbine engine of the type including an annular casing with an array of thermally conductive, generally radially-extending strut members disposed therein. The heat transfer system includes at least one arcuate heat pipe disposed in contact with an outer surface of the casing within fore-and-aft limits of the axial extent of the strut members. The heat pipe is thermally coupled to a heat source, such that heat from the heat source can be transferred through the heat pipe and the casing to the strut members.
Abstract:
A steam turbine with an operating temperature of more than 650° C. includes a thermally highly-loaded housing (G) which is produced by a casting technique at least partially from a nickel-based alloy. Production of such a steam turbine is simplified by the housing (G) being divided into a multiplicity of smaller housing sections (G1, . . . , G8; G21, G22, G31, G32) which are interconnected and together form the housing (G).