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  2. Rocker cover - Wikipedia

    en.wikipedia.org/wiki/Rocker_cover

    A rocker cover, (UK), or valve cover (elsewhere) is a cover that encloses the rocker arm in an internal combustion engine, bolting with a gasket seal to the engine head. Engines with more than one head (such as a V8 ) will have multiple rocker covers.

  3. Cam (mechanism) - Wikipedia

    en.wikipedia.org/wiki/Cam_(mechanism)

    The cam can be seen as a device that converts rotational motion to reciprocating (or sometimes oscillating) motion. [clarification needed] [3] A common example is the camshaft of an automobile, which takes the rotary motion of the engine and converts it into the reciprocating motion necessary to operate the intake and exhaust valves of the cylinders.

  4. Camshaft - Wikipedia

    en.wikipedia.org/wiki/Camshaft

    A camshaft operating two valves. A camshaft is a shaft that contains a row of pointed cams in order to convert rotational motion to reciprocating motion.Camshafts are used in piston engines (to operate the intake and exhaust valves), [1] [2] mechanically controlled ignition systems and early electric motor speed controllers.

  5. Tappet - Wikipedia

    en.wikipedia.org/wiki/Tappet

    In an overhead valve engine the tappets (on right) are sandwiched between pushrods and the camshaft. In an internal combustion engine, a tappet (also called a 'valve lifter' or 'cam follower') [3] [4] [5] is the component which converts the rotation of the camshaft into vertical motion to open and close an intake or exhaust valve.

  6. Boat building - Wikipedia

    en.wikipedia.org/wiki/Boat_building

    A number of boat building texts are available which describe the carvel planking method in detail. [4] Clinker is a planking-first technique originally identified with the Scandinavians and Ingveonic people in which wooden planks are fixed to each other with a slight overlap that is beveled for a tight fit. The planks are mechanically connected ...

  7. Expansion valve (steam engine) - Wikipedia

    en.wikipedia.org/wiki/Expansion_valve_(steam_engine)

    One plate can move so that its slats overlap either the slats of the other plate, or the slots between them, to thus be either open or closed. It has the advantages of a relatively large opening (up to half of the total area) and a rapid opening, needing to be moved by only one slat width to change from fully open to fully closed.

  8. Russia claims capture of eastern Ukrainian town as fighting ...

    www.aol.com/russia-claims-capture-eastern...

    Russia has claimed that its forces captured a battered but strategic town in Ukraine’s eastern Donetsk region, a day after Kyiv launched a counterattack in the Russian region of Kursk.

  9. Swashplate - Wikipedia

    en.wikipedia.org/wiki/Swashplate

    The fixed plate is shown in gold and six shafts each take a reciprocating motion from points on the gold plate. The shafts might be connected to pistons in cylinders. Note the power may be coming from the shaft to drive the pistons as in a pump, or from the pistons to drive the shaft rotation as in an engine