Patent ID: 7651101
Filing Date: 2010-01-26
Classification: F01D,F05D,F16J,Y10T

Abstract:
1. A shaft seal for reducing leakage between a rotating shaft and a static shell, the shaft seal comprising: a plurality of compliant plate members attached in facing relation at root ends to the static shell, the compliant plate members defining a sealing ring between the static shell and the rotating shaft, wherein each of the compliant plate members comprises at least one slot therein extending radially into the compliant plate member through a radially outwardmost edge of the root end; and at least one static ring attached to the static shell and extending radially into the at least one slot in the compliant plate members, each of the at least one static ring extending circumferentially through and between a plurality of the compliant plate members such that the at least one static ring serves as a barrier to at least some axial leakage flow between the compliant plate members.