nozzle guide vanes

nozzle guide vanes (NGVs)

nozzle guide vanes (NGVs)click for a larger image
The stator blades of a turbine. They are convex and shaped like airfoils. They direct the airflow onto the turbine blades while at the same time converting pressure energy into kinetic energy. Gases coming from the combustion chamber pass through the nozzle guide vanes, where because of their convergent shape they accelerate. On passing through the NVGs, gases are given a “spin” or a “swirl” in the direction of the rotation of the turbine rotor blades. The latter absorb this energy, causing the turbine to rotate at a high speed.
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References in periodicals archive ?
Following the initial performance runs the first engine was dismantled, the coated components were installed and six windows were mounted on the engine enabling optical access to the main hot end components including the combustion chamber inner flame tube, nozzle guide vanes and the turbine rotor blades.
Sukhatme, "Influence of upstrean flow conditions on the heat transfer to nozzle guide vanes," Journal of Turbomachinery, vol.
Radial turbines with nozzle guide vanes have found a wide application in diesel engine turbochargers and a lesser extent in small gas turbine engines.
The ash is so fine that it will invade the spaces between rotating machinery and jam them [ETH] silica in ash melts at about 1,100 degrees and fuses to turbine blades and nozzle guide vanes (another part of the turbine assembly), which in modern aircraft operate at 1,400 degrees.
Analysis of intraplant accountability documentation concerning formation and dynamics of accumulation of cast waste in production of cast GTE parts (rotor blades and nozzle guide vanes, struts, fairings, etc.) on the basis of SE <<Zorya--Mashproekt>> was carried out.
Max-Tek introduces the HGC 400 Horizontal CBN grinding center with 3-, 4-, and 5-axis capability for applications in aerospace and power generation, including gas turbine blades, vanes, nozzle guide vanes, and shroud segments.
The next group of applications involved turbo machinery applications like turbine blades or nozzle guide vanes that are found in the hot section of aircraft engines.
The furnaces were ordered to meet a growing need for accurately controlled diffusion and solution heat treatment of turbine blades and nozzle guide vanes at the Aberdeen headquarters.
The agreement covers high-pressure and intermediate-pressure turbine components, both nozzle guide vanes and seal segments.
announces the new Laserdyne Model 450 5-axis laser system designed specifically for precision percussion and trepan drilling of turbine engine blades, nozzle guide vanes, shrouds, and similar size components.
Pratt & Whitney will use the systems for precision, high-speed laser processing of aerospace turbine engine components such as combustor liners and nozzle guide vanes. Most of these parts are produced from difficult-to-process high-temperature materials such as Inconel, Hastelloy, and super cobalt alloys and require special holes of different sizes and shapes that are drilled at varying angles.