Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1996-11-12
1998-01-06
Cummings, Scott
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 53, 2940202, F16J 15447
Patent
active
057046140
ABSTRACT:
A rubbing strip is used in conjunction with the sealing strips of a seal to prevent contact between the sealing strips and a rotating member with which the sealing strips form a seal. The rubbing strip comprises a strip of material which is oriented coaxially with the sealing strips and which has a clearance with respect to the rotating member which is less than the least of the clearances provided by the sealing strips with which it is associated. The material and the cross-sectional shape of the rubbing strip may be selected in accordance with desired wear properties. The rubbing strip may be formed integrally with a sealing ring, or may be formed to be inserted into complementary receiving means on a sealing ring.
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Sanders, W.P.; "Turbine Steam Path Engineering for Operations and Maintenance Staff"; pp. 4.1 -4.20, CH-11, and p. 13.30.
Mitola Anthony F.
Sanders William P.
Cummings Scott
Innovative Technology, L.L.C.
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