Influence of Structural Parameters of Gearbox Seal System of Electrical Multiple Units on Seal Performance

Figure 16

The velocity vector diagram of seal system with different axial seal height differences: (a) the axial seal height difference is −6 mm; (b) the axial seal height difference is −3 mm; (c) the axial seal height difference is 0 mm; (d) the axial seal height difference is 3 mm; (e) the axial seal height difference is 6 mm.