Mood:
a-okThe main reason for the two vane design was to overcome the static inertia of the air mixture. In piston designs the air gap in the combustion chamber reduces volumetric efficiency and they dont get reasonably efficient until high rpm.
A four vane solution variant would have 45 degrees of overlap. The 3 vane version would have 15. Overlap is when the engine begins to work against itself thus reducing efficiency.
Posted by sharpshooter6543210
at 5:06 PM PST
Updated: Friday, 16 January 2009 5:42 PM PST
