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  2. Thermal power station - Wikipedia

    en.wikipedia.org/wiki/Thermal_power_station

    An auxiliary oil system pump is used to supply oil [clarification needed] at the start-up of the steam turbine generator. It supplies the hydraulic oil system required for steam turbine's main inlet steam stop valve, the governing control valves, the bearing and seal oil systems, the relevant hydraulic relays and other mechanisms.

  3. Hydraulic fluid - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_fluid

    A hydraulic fluid or hydraulic liquid is the medium by which power is transferred in hydraulic machinery. Common hydraulic fluids are based on mineral oil or water. [ 1 ] Examples of equipment that might use hydraulic fluids are excavators and backhoes , hydraulic brakes , power steering systems, automatic transmissions , garbage trucks ...

  4. Tidal stream generator - Wikipedia

    en.wikipedia.org/wiki/Tidal_stream_generator

    Two types of Tidal Stream Generators Evopod - A semi-submerged floating approach tested in Strangford Lough with SeaGen in the background.. A tidal stream generator, often referred to as a tidal energy converter (TEC), is a machine that extracts energy from moving masses of water, in particular tides, although the term is often used in reference to machines designed to extract energy from the ...

  5. Power rating - Wikipedia

    en.wikipedia.org/wiki/Power_rating

    Equipment is generally rated by the power it will deliver, for example, at the shaft of an electric or hydraulic motor. The power input to the equipment will be greater owing to the less than 100% efficiency of the device. [1] [2] [3] Efficiency of a device is often defined as the ratio of output power to the sum of output power and losses. In ...

  6. Hydraulic motor - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_motor

    However, many hydraulic pumps cannot be used as hydraulic motors because they cannot be backdriven. Also, a hydraulic motor is usually designed for working pressure at both sides of the motor, whereas most hydraulic pumps rely on low pressure provided from the reservoir at the input side and would leak fluid when abused as a motor. [1]

  7. Power-to-weight ratio - Wikipedia

    en.wikipedia.org/wiki/Power-to-weight_ratio

    Rexroth A2FM 16cc/rev, bent axis hydraulic motor (continuous output) 5.4 kg 11.9 lb 81.8 kW 109.7 hp 15.1 kW/kg 9.21 hp/lb Concrete mixers, combine harvesters Hydroleduc M18, bent axis hydraulic motor (continuous output) [52] 5.5 kg 12.1 lb 92 kW 123 hp 16.7 kW/kg 10.2 hp/lb Vehicle transmissions, forestry equipment