Valve timing
Timing of valve closing in engines / From Wikipedia, the free encyclopedia
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For the joke about release dates of the game company Valve, see Valve Time.
In a piston engine, the valve timing is the precise timing of the opening and closing of the valves. In an internal combustion engine those are usually poppet valves and in a steam engine they are usually slide valves or piston valves.
This article relies largely or entirely on a single source. (October 2015) |