Patent ID: 8967960
Filing Date: 2015-03-03
Classification: F04D,Y10T

Abstract:
1. A rotor for a compressor, the rotor comprising: a solid first stub having a first end configured to engage with a corresponding bearing and a second end having a flange configured to be attached by bolts to a corresponding flange of a first impeller of the compressor and wherein the solid first stub is not hollow, wherein; a tie rod configured to pass through the first impeller of the compressor, the tie rod having a first end having a threaded region and a second end having a threaded portion, the first end facing the second end of the solid first stub; a nut being configured to engage the threaded region of the first end of the tie rod and to apply a pre-load to the tie rod and the first impeller of the compressor; and a solid second stub having a first end configured to receive the threaded portion of the second end of the tie rod and a second end configured to engage with a corresponding bearing, and wherein the solid second stub is not hollow, wherein the tie rod does not contact the solid first stub.