Adjustable leak device for a rotating shaft

摘要

A device ( 10 ) for controlling a leak of fluid through an opening ( 13 ) in a wall ( 14 ) over a rotating shaft ( 18 ), which rotating shaft extends through the opening is described. The device includes an adjustable member ( 20 ) adjustably mountable to the wall, the member having a generally stationary working surface ( 22 ) spaced from a rotating working surface ( 24 ) which rotates with the shaft such that an adjustable leak gap is defined between the stationary and the rotating working surfaces to control the leak of fluid through the opening.