In compression flow (Figure 1) at low shaft speeds, oil flows mostly through the shaft jet bleed (lower dotted arrow). At high shaft speeds, oil flows mostly through the compression ports in the piston (upper dotted arrow). At intermediate shaft speeds, the oil flow can also be regulated by the compression valve in the DFV. During sudden shaft accelerations, oil can also escape through the compression ports in the DFV, further increasing comfort and handling.
In rebound flow (Figure 2) at low shaft speeds, oil flows mostly through the shaft jet bleed (lower dotted arrow). At high shaft speeds, oil flows mostly through the rebound ports in the piston (upper dotted arrow). At intermediate shaft speeds, the oil flow can also be regulated by the rebound valve in the DFV. During sudden shaft accelerations, oil can also escape through the rebound ports in the DFV, maintaining tyre contact with the road.