Laminated finger seal with logarithmic curvature

Details Laminated finger seal with logarithmic curvature Laminated finger seal with logarithmic curvature

1991-05-31

1992-04-28

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277193, 4151745, F16J 15447

Patent

active

051081164

ABSTRACT:
An annular sealing apparatus comprised of at least a pair of axially stacked thin diaphragm members is provided. Each of diaphragm members includes a planar array of radially extending fingers separated by gaps. The fingers have a logarithmic curvature as they extend from their innermost end to their outermost end. The fingers also have a constant thickness along their length and also have a foot integral with their innermost end. This foot is wider than the fingers and thereby provides a larger wear surface. The pair of diaphragm members are disposed so that the fingers of each block the gaps of the other.

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Brushes as High Performance Gas Turbine Seals (J. G. Ferguson) Jun. 6, 1988.

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