| 摘要 |
PROBLEM TO BE SOLVED: To provide a spiral rotor permitting easy machining and resources saving. SOLUTION: A spiral rotor 11 which is fitted in a stator 3 and transfers a thing to be transferred in the space between the rotor and the inscribed side of the stator by rotation has a hollow spiral form part 11a. Moreover, it has hollow parallel parts 11b, 11c at both ends of the spiral form part 11a, and a flange 12 for mounting is attached to the parallel part 11b at the upstream side in the transfer direction of the thing to be transferred, and a flange for thrust 13 is attached to the parallel part 11c at the downstream side of the transfer direction, respectively. |
