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  2. Timing belt (camshaft) - Wikipedia

    en.wikipedia.org/wiki/Timing_belt_(camshaft)

    The crankshaft drives the camshaft (via a timing belt, timing chain or gears), which in turn actuates the intake and exhaust valves. [1] These valves allow the engine to inhale air (or an air/fuel mixture) and exhale the exhaust gasses. [2] The most common devices to transfer the drive are toothed rubber belts, metal timing chains or a set of ...

  3. Gear train - Wikipedia

    en.wikipedia.org/wiki/Gear_train

    The gear ratios in transmission and final drive are important because different gear ratios will change the characteristics of a vehicle's performance. Valve timing gears on a Ford Taunus V4 engine — the small gear is on the crankshaft, the larger gear is on the camshaft. The crankshaft gear has 34 teeth, the camshaft gear has 68 teeth and ...

  4. Semi-automatic transmission - Wikipedia

    en.wikipedia.org/wiki/Semi-automatic_transmission

    The Automotive Products manumatic system, available on the 1953 Ford Anglia 100E, was a vacuum-powered automatic clutch system that was actuated by a switch that was triggered whenever the gear stick was moved. The system could control the throttle cable (to keep the engine at the required RPM for the gear change) and vary the rate of clutch ...

  5. Geared steam locomotive - Wikipedia

    en.wikipedia.org/wiki/Geared_steam_locomotive

    The steam locomotive, as commonly employed, has its pistons directly attached to cranks on the driving wheels; thus, there is no gearing, one revolution of the driving wheels is equivalent to one revolution of the crank and thus two power strokes per piston (steam locomotives are almost universally double-acting, unlike the more familiar internal combustion engine).

  6. David Brown Ltd. - Wikipedia

    en.wikipedia.org/wiki/David_Brown_Ltd.

    By the end of World War I the workforce had increased from 200 to 1,000 as they started building propulsion units for warships, and drive mechanisms for armaments. By 1921 the company was the largest worm gear manufacturer in the world. [2] In 1930 the company took over P R Jackson another local firm of gear manufacturers and steel founders.

  7. Toothed belt - Wikipedia

    en.wikipedia.org/wiki/Toothed_belt

    Supercharger drive belt in a dragster. A toothed belt, timing belt, cogged belt, cog belt, or synchronous belt is a flexible belt with teeth moulded onto its inner surface. Toothed belts are usually designed to run over matching toothed pulleys or sprockets. Toothed belts are used in a wide array of mechanical devices where high power ...

  8. Wheel train - Wikipedia

    en.wikipedia.org/wiki/Wheel_train

    The going train is the main gear train of the timepiece. It consists of the wheels that transmit the force of the timepiece's power source, the mainspring or weight, to the escapement to drive the pendulum or balance wheel. [4] The going train has two functions. First, it scales up the speed of rotation of the mainspring or weight pulley.

  9. Gear - Wikipedia

    en.wikipedia.org/wiki/Gear

    The opposite effect is obtained when a large gear drives a small one. The changes are proportional to the gear ratio r, the ratio of the tooth counts: namely, ⁠ T 2 / T 1 ⁠ = r = ⁠ N 2 / N 1 ⁠, and ⁠ ω 2 / ω 1 ⁠ = ⁠ 1 / r ⁠ = ⁠ N 1 / N 2 ⁠. Depending on the geometry of the pair, the sense of rotation may also be inverted ...

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