平均ピストンスピード
1. Mean piston speedThe mean piston speed is the average speed of the piston in a reciprocating engine. It is a function of stroke and RPM. There is a factor of 2 in the equation to account for one stroke to occur in 1/2 of a crank revolution and a '60' to convert seconds from minutes in the RPM term. MPS = 2 * Stroke * RPM / 60 For example, a piston in an automobile engine which has a stroke of 90 mm will have a mean speed at 3000 rpm of 2 * (90 / 1000) * 3000 / 60 = 9 m/s.
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Read “平均ピストンスピード” on Japanese Wikipedia
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Read “Mean piston speed” on English Wikipedia
Read “平均ピストンスピード” on Japanese Wikipedia
Read “Mean piston speed” on DBpedia
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