The schematic diagram of the Type A analysis model is shown in Figure 1.
•The spring force and the hydraulic force react against the motion of plunger.
•The motion of plunger is assumed to act in the same direction as the motion of cylinder.
•The check ball acts upon by the spring force and the hydraulic force from the plunger.
•The motion of the check ball is also assumed to act in the same direction as the plunger.
•The check ball is contacted to the plunger.
Figure 1 Schematic diagram of Type A analysis model
Figure 2 Geometry of Type A