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  2. Kaplan turbine - Wikipedia

    en.wikipedia.org/wiki/Kaplan_turbine

    S-turbines eliminate the need for a bulb housing by placing the generator outside of the water channel. This is accomplished with a jog in the water channel and a shaft connecting the runner and generator. The VLH turbine is an open flow, very low head "kaplan" turbine slanted at an angle to the water flow. It has a large diameter >3.55 m, is ...

  3. Components of jet engines - Wikipedia

    en.wikipedia.org/wiki/Components_of_jet_engines

    Each stage consists of rotating blades and stationary stators or vanes. As the air moves through the compressor, its pressure and temperature increase. The power to drive the compressor comes from the turbine (see below), as shaft torque and speed. Bypass ducts deliver the flow from the fan with minimum losses to the bypass propelling nozzle ...

  4. Accessory drive - Wikipedia

    en.wikipedia.org/wiki/Accessory_drive

    Klimov TV3-117 turboshaft engine. The accessory drive is the large casting on the top. The accessory drive is a gearbox that forms part of a gas turbine engine. [1] Although not part of the engine's core, it drives the accessories – such as generators, pumps for fuel and lubrication oil, air compressors, hydraulic pumps and engine starters – that are otherwise essential for the operation ...

  5. Microturbine - Wikipedia

    en.wikipedia.org/wiki/Microturbine

    They comprise a compressor, combustor, impeller/turbine and electric generator on a single shaft or two. They can have a recuperator capturing waste heat to improve the compressor efficiency, an intercooler and reheat. They rotate at over 40,000 RPM and a common single shaft microturbine rotate usually at 90,000 to 120,000 RPM. [2]

  6. Free-turbine turboshaft - Wikipedia

    en.wikipedia.org/wiki/Free-turbine_turboshaft

    This refers to the number of compressor-and-turbine assemblies in the gas generator stage and does not include the free power turbine assembly. [2] As an example, the General Electric T64 is a single-spool design that uses a 14-stage axial compressor; the independent power shaft is coaxial with the gas generator shaft. [3]

  7. Shaft voltage - Wikipedia

    en.wikipedia.org/wiki/Shaft_voltage

    Shaft voltage occurs in electric motors and generators due to leakage, induction, or capacitive coupling with the windings of the motor. It can occur in motors powered by variable-frequency drives , as often used in heating, ventilation, air conditioning and refrigeration systems.

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  9. Hydrogen-cooled turbo generator - Wikipedia

    en.wikipedia.org/.../Hydrogen-cooled_turbo_generator

    The bearings have to be leak-tight. A hermetic seal, usually a liquid seal, is employed; a turbine oil at pressure higher than the hydrogen inside is typically used. A metal, e.g. brass, ring is pressed by springs onto the generator shaft, the oil is forced under pressure between the ring and the shaft; part of the oil flows into the hydrogen side of the generator, another part to the air side.

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