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1. (WO2017147949) ELECTROMAGNETICALLY ENABLED ACTIVE TYPE DYNAMIC GAS BEARING

Pub. No.:    WO/2017/147949    International Application No.:    PCT/CN2016/076386
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Mar 16 00:59:59 CET 2016
IPC: F16C 32/06
Applicants: TECHNOLOGIES' XANADU OF RESONATORY-SOLAR-SYSTEMED CO., LTD.
至玥腾风科技投资集团有限公司
Inventors: JIN, Pu
靳普
Title: ELECTROMAGNETICALLY ENABLED ACTIVE TYPE DYNAMIC GAS BEARING
Abstract:
An electromagnetically enabled active type dynamic gas bearing, comprising an electromagnetic bearing (1) and an elastic foil bearing (3) nested between the electromagnetic bearing (1) and a rotor shaft (2). The elastic foil bearing (3) comprises a top elastic foil (31) and a bottom elastic foil (32); the top elastic foil (31) is made of nonmagnetic material, and a plurality of magnetic material areas that is independent of each other is distributed on the surface of the top elastic foil (31). The electromagnetically enabled active type dynamic gas bearing features a simple structure and low precision requirements, uses a gas-magnetic bearing structure, and has adjustable magnetic flat foils and a low-cost pressure sensor, thereby resolving the problem in the existing dynamic gas bearings of being difficult to control during operation due to lubricant gas leakage caused by low low-speed bearing capacity and eccentricity perturbation of the bearing.