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  2. Component parts of internal combustion engines - Wikipedia

    en.wikipedia.org/wiki/Component_parts_of...

    In a spark ignition engine, a mixture is ignited by an electric spark from a spark plug — the timing of which is very precisely controlled. Almost all gasoline engines are of this type. Diesel engines timing is precisely controlled by the pressure pump and injector. The normal plug distance between the spark plug is 1mm apart, and the voltage ...

  3. Capacitor discharge ignition - Wikipedia

    en.wikipedia.org/wiki/Capacitor_discharge_ignition

    Once a spark has struck, the voltage across the spark gap in a running engine drops to a relatively low value, in the order of 1500-2000 volts. This, combined with the fact that the coil secondary current of 400 milliamperes loses approximately 1600 volts through the 4000 ohm secondary resistance means that fully 50% of the energy is lost in ...

  4. Small engine - Wikipedia

    en.wikipedia.org/wiki/Small_engine

    Briggs & Stratton Vanguard V-twin engine in a portable generator. A small engine is the general term for a wide range of small-displacement, low-powered internal combustion engines used to power lawn mowers, generators, concrete mixers and many other machines that require independent power sources. [1]

  5. Ignition coil - Wikipedia

    en.wikipedia.org/wiki/Ignition_coil

    The spark plugs then use this burst of high-voltage electricity to ignite the air-fuel mixture. The ignition coil is constructed of two sets of coils wound around an iron core. Older engines often use a single ignition coil which has its output directed to each cylinder by a distributor, a design which is still used by various small engines ...

  6. Leak-down tester - Wikipedia

    en.wikipedia.org/wiki/Leak-down_tester

    A locomotive engine which gives a leak-down of 10% on a leak-down tester is virtually perfectly sealed while the same tester giving a 10% reading on a model airplane engine indicates a catastrophic leak. With a non-turbulent .040" orifice, and with a cylinder leakage effective orifice size of .040", leakage would be 50% at any pressure.

  7. Cheap and deadly: Why vehicle terror attacks like the Bourbon ...

    www.aol.com/cheap-deadly-why-vehicle-terror...

    Experts say vehicle-based attacks are simple for a 'lone wolf' terrorist to plan and execute, and challenging for authorities to prevent.

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