Terminologies in IC engine

Various terminologies in IC engine are listed below:

1) Top Dead Center (TDC) : It is the position of the piston farthest from crankshaft.

2) Bottom Dead Center (BDC) : It is the position of the piston nearest from crankshaft.

3) Stroke or Stroke length: The distance traveled by the piston from TDC to BDC is one stroke known stroke length.

4) Swept volume: The volume covered when piston move from BDC to TDC is swept volume.

5) Clearance volume: It is the volume of the cylinder left when the piston is at TDC.