| 摘要 |
An axial piston pump, comprising a cylinder block having one or more cylinder bores; and one or more piston assemblies; wherein number of piston assemblies matches number of cylinder bores; wherein each of the piston assemblies having a piston being disposed reciprocating in each of the cylinder bores; and wherein each piston being fitted with a metallic sealing ring, which is a coiled felt seal (CFS), for reducing leakage and keeping concentric of the piston within its corresponding cylinder bore. |
