valvetrain

See also: valve train

English

Etymology

valve +‎ train

Noun

valvetrain (plural valvetrains)

  1. The collective mechanisms and parts that control the operation of the valves in an internal combustion engine.
    • 2007 January 14, Don Sherman, “Making Modern Horsepower the Old-Fashioned Way”, in New York Times‎:
      To coax their pushrod designs to rev higher without running out of breath, engineers have designed lighter, stiffer, lower-friction valvetrains.
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