The comparison of mean piston speed (black line) with real piston speed (color lines). Diagram shows one stroke from BDC to TDC. Revolution = 1.000 min<sup>-1</sup>, stroke = 88 mm. The connecting rod ratio l/r varies: 3 - red, 4 - green, 5,5 - blue
<a href="//commons.wikimedia.org/wiki/User:Rios" title="User:Rios">Rios</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>