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2. Gunderson Do-All Machine - Wikipedia

   en.wikipedia.org/wiki/Gunderson_Do-All_Machine

   The variety of machines include an automatically reversing worm gear, a water pump impellar, a governor/gas valve from a 20-horsepower (HP) JC engine, a blacksmith blower/bubble maker, the main line shaft and pulley from an antique corn grinder, a floating gear, a DC 110-volt generator and lights, a 38-to-1 gear reducer, a bicycle light ...

3. Propeller speed reduction unit - Wikipedia

   en.wikipedia.org/wiki/Propeller_Speed_Reduction_Unit

   A propeller speed reduction unit is a gearbox or a belt and pulley device used to reduce the output revolutions per minute (rpm) from the higher input rpm of the powerplant. [1] This allows the use of small displacement internal combustion engines to turn aircraft propellers within an efficient speed range.

4. Reduction drive - Wikipedia

   en.wikipedia.org/wiki/Reduction_drive

   The Midwest twin-rotor wankel engine has an eccentric shaft that spins up to 7,800 rpm, so a 2.96:1 reduction gear is used. Aero-engine reduction gears are typically of the gear type, but smaller two-stroke engines such as the Rotax 582 use belt drive with toothed belts, which is a cheap and lightweight option with built-in damping of power surges.

5. Fuel control unit - Wikipedia

   en.wikipedia.org/wiki/Fuel_control_unit

   A cutaway of a Garrett AiResearch TPE-331 turboprop engine. The fuel control unit is the large yellow-painted component mounted on the rear of the gearbox. A fuel control unit (FCU) is a control system for gas turbine engines.

6. Overdrive (mechanics) - Wikipedia

   en.wikipedia.org/wiki/Overdrive_(mechanics)

   There is therefore one specific gear ratio at which the car can achieve its maximum speed: the one that matches that engine speed with that travel speed. [1] At travel speeds below this maximum, there is a range of gear ratios that can match engine power to air resistance, and the most fuel efficient is the one that results in the lowest engine ...

7. Air-start system - Wikipedia

   en.wikipedia.org/wiki/Air-start_system

   It is mounted at the flywheel housing in the engine. The starter when receive air or gas start to engage the pinion in the ring-gear. After engine gets the firing speed pinon disengage. Compressed air has been used to start gas turbine engines using air impingement starting (in which air is directed at the engine turbine blades through nozzles ...