You'd think measuring an engine's displacement would be simple, but there's a long history of trying to figure out how to categorize the Wankel.
OBJECTIVE: To determine and compare the extent of within- and between-laboratory precision in body volume (BV) measurements using air displacement plethysmography (ADP), the BOD POD body composition ...
This engine has a transparent cylinder so that combustion can be observed. Two components of cylinder volume are important: (a) The "Displacement volume" is the volume displaced by the piston as it ...