An active fluid bearing system is provided. In one example, the active
fluid bearing system includes an interface region formed between an outer
surface of an inner member and an opposing inner surface of an outer
member. The inner and outer members are disposed for relative rotation of
the inner and outer members, and thereby form an interface region having
a hydrodynamic bearing region and an active bearing region. A liquid is
disposed in the interface region at the hydrodynamic bearing region, and
is further disposed in the active bearing region if the inner and outer
members are not relatively rotating. The bearing system is operable for
evacuating at least a portion of the liquid from the active bearing
region during relative rotation of the inner and outer members. The
active bearing region may be a journal bearing or a thrust bearing.