| 摘要 |
A transfer coupling (40) comprises a static component (42) and a rotatable component (41) arranged in axial alignment. The static component includes a first number (n-1) of radially extending ports and the rotatable component comprises a second number (n) of radially extending ports, the radially extending ports arranged in a common circumferential plane wherein;
the ports on each component are equally spaced around the component and the number of ports on a first of the components is one less than on the second of the components. |
