Sealing arrangement and gas turbine engine with the sealing arrangement

摘要

At least one sealing arrangement is provided for a connecting mechanism between an inner annular member or an outer annular member and an associated segment to connect between the annular members and the segments. The sealing arrangement includes an elastic sealing member provided between the sealing surfaces, disposed linearly along a side of polygon defined around a central axis.

主权项

1. A sealing arrangement for use with a mechanism, the mechanism comprising
an inner annular member having a central axis and an outer annular member surrounding around the inner annular member; a plurality of segments disposed between the inner and outer annular members and peripherally around the central axis; an inner connecting mechanism connecting between the segments and the inner annular member; and an outer connecting mechanism connecting between the segments and the outer annular member; wherein at least one of the inner connecting mechanism and the outer connecting mechanism includes a sealing arrangement; the sealing arrangement comprising
a pair of first seal surfaces each of which extending radially from the central axis and formed on an associated one of segments;a pair of second seal surfaces each of which extending radially from the central axis and formed on said at least one of the annular members connected to the associated segment by an associated one of the connecting mechanisms, the second seal surfaces being positioned so that each of the second seal surfaces opposes each of the first seal surfaces;the first seal surfaces or the second seal surfaces having respective grooves that extend linearly along respective sides of a polygon defined around the central axis; andelastic seal members fitted in the grooves to retain sealing contacts with the opposed first and second seal surfaces, wherein the respective grooves extend in a direction perpendicular to a radial axis extending from the central axis when viewed in a radial cross-section.