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  2. List of paintball markers - Wikipedia

    en.wikipedia.org/wiki/List_of_paintball_markers

    Empire Paintball Axe: 0.68 in Empire Paintball Dfender 0.68 in Empire Paintball Mini 0.68 in Empire Paintball Sniper 2012 Empire Paintball Resurrection Autococker Auto-cocking 2013 0.68 in Evil Minion Evil Omen: Side-feeding stacked tube mechanical marker, similar to an Autococker Evil Pimp: Evil Scion FASTech Paintball F1 Illustrator FASTech ...

  3. Paintball marker - Wikipedia

    en.wikipedia.org/wiki/Paintball_marker

    A paintball marker, also known as a paintball gun, paint gun, or simply marker, is an air gun used in the shooting sport of paintball, and the main piece of paintball equipment. Paintball markers use compressed gas , such as carbon dioxide (CO 2 ) or compressed air (HPA), to propel dye -filled gel capsules called paintballs through the barrel ...

  4. Poppet valve - Wikipedia

    en.wikipedia.org/wiki/Poppet_valve

    The word poppet shares etymology with "puppet": it is from the Middle English popet ("youth" or "doll"), from Middle French poupette, which is a diminutive of poupée.The use of the word poppet to describe a valve comes from the same word applied to marionettes, which, like the poppet valve, move bodily in response to remote motion transmitted linearly.

  5. Tippmann - Wikipedia

    en.wikipedia.org/wiki/Tippmann

    Like all Tippmann markers, the Pro-Am was nearly indestructible and an extremely reliable gun. While the Pro-Am was like the 68 Special in layout, being an inline poppet valve design, it was a major change in design, with a different body, valve, breech, hammer, hammer to bolt linkage, and sear arrangements.

  6. Smart Parts - Wikipedia

    en.wikipedia.org/wiki/Smart_Parts

    In 1990, Smart Parts produced their first in-house marker. Called the Boss, the Smart Parts pump marker featured a spiral ported barrel and a 'shoebox' style body (which would be mirrored in their first electronic gun design); The Boss was targeted at high-end woodsball tournament players but was not well-received, being considered to be too heavy and too large (when compared to offerings such ...

  7. Uniflow steam engine - Wikipedia

    en.wikipedia.org/wiki/Uniflow_steam_engine

    The poppet valves are controlled by the rotating camshaft at the top. High pressure steam enters, red, and exhausts, yellow. The uniflow type of steam engine uses steam that flows in one direction only in each half of the cylinder. Thermal efficiency is increased by having a temperature gradient along the cylinder. Steam always enters at the ...

  8. Paintball equipment - Wikipedia

    en.wikipedia.org/wiki/Paintball_equipment

    A paintball marker is the primary piece of equipment used in paintball to tag an opposing player. An expanding gas (usually carbon dioxide or high-pressure air) forces a paintball through the barrel at a muzzle velocity of approximately 90 m/s (300 ft/s).

  9. Desmodromic valve - Wikipedia

    en.wikipedia.org/wiki/Desmodromic_valve

    A desmodromic valve is a reciprocating engine poppet valve that is positively closed by a cam and leverage system, rather than by a more conventional spring. The valves in a typical four-stroke engine allow the air/fuel mixture into the cylinder at the beginning of the cycle and exhaust spent gases at the end of the cycle. In a conventional ...