Gas circulator
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United States of America Patent
Stats
-
Feb 16, 1988
Grant Date -
N/A
app pub date -
Jun 24, 1986
filing date -
Jul 9, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A gas circulator, e.g. for circulating a coolant gas in a nuclear power station, the circulator comprising a shaft (34) rotatable about its axis, circulation blades (54, 56) mounted adjacent one end of the shaft for rotation in the coolant gas, a first bearing, (32), in the form of an active magnetic bearing adjacent one end of the shaft, a seal mounted around the shaft between the first bearing and the blades to prevent the circulating fluid from entering the first bearing, a second bearing (32) in the form of a fluid lubricated bearing spaced from one end of the shaft and a motor to rotate the shaft, the second bearing having a journal bearing portion and an axial thrust bearing portion.
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