Active magnetic bearing for use in compressors and other turbomachinery

Journal Article · · Turbomachinery International; (United States)

OSTI ID:6361609

Hennau, J N ^[1]

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1. Japan Magnetic Bearings, Tokyo (Japan)

Active magnetic bearings and dry gas seals are now in operation on quite a number of compressors, turbines and generators, proving than an oil-free system is actually working and that furthermore, it has merits in energy savings, rotor dynamic monitoring and improved reliability. The technology of active magnetic bearing has been developed mainly in France after the Second World War for space application, but soon there appeared the large possibilities in industrial applications starting with the vacuum industry (turbomolecular pump), followed by the machine tool industry (high power and high speed milling and grinding spindles) and the large turbomachinery field (centrifugal compressors, blowers, steam and gas turbines, turbogenerators). Merits of the active magnetic bearing vary from one application to another, but they all derive from the fact that we have no contact between the rotor and the stator and that the electronic control of the bearings can cope with the rotor dynamics and provide useful information on the operating conditions.

• OSTI ID: 6361609
• Journal Information: Turbomachinery International; (United States), Journal Name: Turbomachinery International; (United States) Vol. 30:1; ISSN 0149-4147; ISSN TUIND
• Country of Publication: United States
• Language: English

Related Subjects

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200104 -- Fossil-Fueled Power Plants-- Components
22 GENERAL STUDIES OF NUCLEAR REACTORS
220200 -- Nuclear Reactor Technology-- Components & Accessories
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
BEARINGS
COMPRESSORS
COMPUTERIZED CONTROL SYSTEMS
CONTROL SYSTEMS
ENERGY CONSERVATION
EQUIPMENT
LABORATORY EQUIPMENT
MACHINE TOOLS
MACHINERY
MAGNETIC BEARINGS
MILLING MACHINES
ON-LINE CONTROL SYSTEMS
ON-LINE SYSTEMS
PERFORMANCE
PUMPS
RELIABILITY
TOOLS
TURBOMACHINERY
TURBOMOLECULAR PUMPS
USES
VACUUM PUMPS