Title:
【発明の名称】流体機械のロータ用軸受装置およびその使用方法
Document Type and Number:
Japanese Patent JP2001511498
Kind Code:
A
Abstract:
The invention relates to a mounting for a turbo-machine rotor. Said mounting is characterized in that radial support of the rotor is assured by one or more permanent magnet bearings. One or more single-thrust sliding bearings provide axial support. The permanent magnet bearings also serve as a lifting device for the sliding surfaces of the hydrodynamic sliding bearings. A force, acting in the opposite direction from the axial force, is generated by axial displacement of the rotor-sided bearing elements of the permanent magnet bearing, in relation to the housing-sided bearing elements, counter to the direction of axial force. This force separates the sliding surfaces of the hydrodynamic sliding bearings from each other in the stopping phases of the rotor. Once it has come to a stop, and when it is in the starting and stopping phases, the rotor is guided by one or more sliding or rolling bearings. These are so configured that, at low rotational speed and when at a standstill, they have a substantially lower moment of friction than the hydrodynamic sliding bearings used in the mounting.
Inventors:
Werner Stefan
Application Number:
JP2000504373A
Publication Date:
August 14, 2001
Filing Date:
July 23, 1998
Export Citation:
Assignee:
Albayler, Actien Gezel Shaft
International Classes:
F04D29/04; F04D29/047; F04D29/048; F16C17/10; F04D29/046; F16C32/00; F16C39/02; F16C39/06; (IPC1-7): F04D29/04; F16C17/10; F16C32/00
Attorney, Agent or Firm:
Shuji Sugimoto (2 outside)