| 摘要 |
A fluid swivel permitting a large number of revolutions, such as 20, and permitting a large number of fluid, power, and signal paths. The swivel is leak proof and capable of resisting large internal pressures in the conveyed fluid such as 70 MPa. The pipes of the swivel are spooled between two cones in such a manner that the pipe on one cone is spooled from the top down and on the other cone from the bottom up. This method of spooling ensures a constant distance between the unwinding point on one cone and the winding point on the other cone. By providing cones with the apex pointing up, the spooled flexible pipe on either cone is prevented from falling down. An alternative embodiment spools between two cylinders with a common axis. In this embodiment the pipe spooled on one cylinder is supported by a structure resting on the pipe spooled on the other cylinder, thereby preventing the pipe on either cylinder from falling down. Yet another embodiment spools between two cylinders provided with helically formed shelves. In this embodiment the pipes spooled on the cylinders are supported by the helically formed shelves. The invention removes the limitation on existing type 5 swivels of only being able to practically store two wraps of pipe on each spool permitting 10 or more wraps on each spool thereby making the number of revolutions end to end 20 or more. |
