April 2013

Turbomachinery Developments

Select the right shaft-riding brushes for turbomachinery

Since the mid-1950s, much progress has been accomplished in the development, design and production of shaft-riding brushes for turbomachinery applications. The machinery includes steam and gas turbine..

Bloch, H. P., Hydrocarbon Processing Staff; Sohre, T., Sohre Turbomachinery

Since the mid-1950s, much progress has been accomplished in the development, design and production of shaft-riding brushes for turbomachinery applications. The machinery includes steam and gas turbines, gears, turbocompressors and ship propulsion systems. The brushes assist in controlling shaft current problems, especially under conditions in which the shafts operate at high-surface velocity, oil-splash and other susceptible environments. Shaft currents are often generated by nonelectric machines. Of course, they also occur in equipment trains with electric motors and generators. Shaft currents can be of electrostatic or electromagnetic origin. They can cause severe damage to bearings, sh

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