Rotating seal for gas turbine engine
AssigneeUnited Technologies Corporation
InventorGary P. Peters
Life of this patent
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Abstract
The cavity between the first stage and second stage turbines of a gas turbine power plant is sealed by a rotating seal characterized by an I-beam section annular member spanning therebetween to transmit the axial load through the upper rim and the radial load through the lower rim of the annular member. A hammer head eccentrically mounted on the edge of the upper rim locks in the first stage rear side plate and a gap between the lower rim and second stage turbine pressure balances the I-section.
Claims4
For a gas turbine power plant comprising a first stage turbine having a first disk supporting a plurality of turbine blades and having a first axial projection, a second stage turbine having a second disk supporting a plurality of turbine blades and having a second axial projection, rotating sealing means for the cavity between said first disk and said second disk sealing against the working fluid of said turbines including an annular member having an I-beam shape in cross-section and an upper flat contoured rim extending between and abutting said first disk and said second disk for transmitting the axial loads imposed by said turbine blades, and a lower convexed, contoured rim extending between said first disk and said second disk, the outer edges of said lower convexed, contoured rim radially abutting the respective first axial projection and the second axial projection for transmitting the radial loads imposed by said turbine blades whereby a portion of the radial load is transmitted through said first disk and said second disk and the remaining portion is transmitted through the I-section of said I-beam shaped annular member.
Dependencies are inferred from the claim text.