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2. Electro-hydraulic actuator - Wikipedia

   en.wikipedia.org/wiki/Electro-hydraulic_actuator

   Instead of the energy needed to move the controls being supplied by an external hydraulic supply, it is supplied over normal electrical wiring, albeit larger wiring than what would be found in a fly-by-wire system. The speed of the motion is controlled through the use of pulse-code modulation. The result is a "power-by-wire" system, where both ...

3. High-speed steam engine - Wikipedia

   en.wikipedia.org/wiki/High-speed_steam_engine

   Twin-cylinder single-acting vertical engine with enclosed crankcase. The governor may be seen inside the crankcase. As speeds increased, the high-speed engine evolved towards its developed form of the multi-cylinder vertical engine with an enclosed crankcase. There was also a tendency to use single-acting pistons. This had two advantages, the ...

4. Hydraulic motor - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_motor

   For high quality rotating drive systems, plunger motors are generally used. Whereas the speed of hydraulic pumps range from 1200 to 1800 rpm, the machinery to be driven by the motor often requires a much lower speed. This means that when an axial plunger motor (swept volume maximum 2 litres) is used, a gearbox is usually needed.

5. Marine propulsion - Wikipedia

   en.wikipedia.org/wiki/Marine_propulsion

   An advantage of turbo-electric transmission is that it allows the combination of high-speed turbines with slow turning propellers or wheels, without requiring a gearbox. It can also provide electricity for other electrical systems, such as lighting, computers, radar, and communications equipment. [citation needed] [26]

6. Napier Deltic - Wikipedia

   en.wikipedia.org/wiki/Napier_Deltic

   The Deltic-powered Hunt-class mine countermeasures vessel HMS Ledbury. Development began in 1947 and the first Deltic model was the D18-11B, produced in 1950. It was designed to produce 2,500 hp (1,900 kW) at 2000 rpm for a 15-minute rating; the continuous rating being 1,875 hp (1,398 kW) at 1700 rpm, based on a 10,000-hour overhaul or replacement life. [3]

7. Starter (engine) - Wikipedia

   en.wikipedia.org/wiki/Starter_(engine)

   An automobile starter motor (larger cylinder). The smaller object on top is a starter solenoid which controls power to the starter motor and engages the Bendix drive.. A starter (also self-starter, cranking motor, or starter motor) is a device used to rotate (crank) an internal-combustion engine so as to initiate the engine's operation under its own power.