side valve

English

Noun

side valve (plural side valves)

  2. (automotive) A type of valve in an internal combustion engine, and thus also (metonymic) the type of valvetrain design, the type of engine that uses it, or an instance of such an engine; this design has the inlet and exhaust valves in the cylinder block beside the piston. The cylinder head is then a simple dome extending across the valves and piston.
    Synonym: flathead
    Hyponyms: L-head, T-head
    Coordinate terms: overhead valve, OHV, overhead cam, OHC
    Near-synonym: L-head (most side valves are L-heads; precisely hyponymous)
    This engine has side valves.
    This engine is a side valve model.   This engine is a side valve.
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