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  2. Rocker arm - Wikipedia

    en.wikipedia.org/wiki/Rocker_arm

    The rocker ratio is the distance travelled by the valve divided by the distance travelled by the pushrod effective. The ratio is determined by the ratio of the distances from the rocker arm's pivot point to the point where it touches the valve and the point where it touches the pushrod/camshaft.

  3. Engine balance - Wikipedia

    en.wikipedia.org/wiki/Engine_balance

    Unbalanced masses along the axis of rotation of a rotating assembly causing a rocking couple, such as if the crankshaft of a boxer-twin engine did not include counterweights, the mass of the crank throws located 180° apart would cause a couple along the axis of the crankshaft. [2] Lateral motion in counter-moving pairs of assemblies, such as a ...

  4. Harmonic damper - Wikipedia

    en.wikipedia.org/wiki/Harmonic_damper

    A harmonic balancer (sometimes called crankshaft damper, torsional damper, or vibration damper) is the same thing as a harmonic damper except that the balancer includes a counterweight to externally balance the rotating assembly. The harmonic balancer often serves as a pulley for the accessory drive belts turning the alternator, water pump and ...

  5. White House approves student debt cancellation for thousands ...

    www.aol.com/news/white-house-approves-student...

    One month before President Biden leaves the White House, the Biden administration announced it has forgiven student loan debt for 54,900 public service workers.

  6. Bettors backing favorites in each of Sunday's NFL wild-card ...

    www.aol.com/sports/bettors-backing-favorites...

    The only home team not getting the majority of action is the only home team that’s an underdog, and the only one not playing in its home stadium. The Rams are now 2.5-point dogs to the Minnesota ...

  7. NFL playoff picture: Projected AFC, NFC bracket wild card ...

    www.aol.com/nfl-playoff-picture-projected-afc...

    There's one last week to decide the NFL playoff picture in each conference. Here's how things stand entering Week 18.

  8. Cam (mechanism) - Wikipedia

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

    A cam is a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion. [ 1 ] [ 2 ] It is often a part of a rotating wheel (e.g. an eccentric wheel) or shaft (e.g. a cylinder with an irregular shape) that strikes a lever at one or more points on its circular path.

  9. Scroll-type supercharger - Wikipedia

    en.wikipedia.org/wiki/Scroll-type_supercharger

    Rather than rotating, the displacer is driven in an orbital motion to create a pumping action between the pairs of scrolls. Air is pulled into the device when the moving scrolls are at their furthest from the fixed scrolls, leaving a large gap.