Pressure balanced compliant seal device

摘要

A compliant seal device for sealing a high pressure area from a low pressure area. The compliant seal device comprises a base member including an annular base wall, a first wall extending radially inward from the base wall proximate the high pressure area and a second wall extending radially inward from the base wall proximate the low pressure area, the base member having a cavity formed therein between the first wall and the second wall. The compliant seal device further comprises a plurality of flexible sheet members extending between the first wall and the second wall, each of the plurality of flexible sheet members having a base end fixed to the first wall and a moveable free end in sealing engagement with the second wall to substantially enclose the cavity with an adjustable pressure therein.