Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1994-09-21
1996-07-30
Cummings, Scott W.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277 3, 277 53, 4151745, F16J 15447, E21B 3300
Patent
active
055404472
ABSTRACT:
A damper seal (10) and method of sealing and damping a rotating shaft (12) is provided with a stator housing (14) and at least two sealing blades, an upstream sealing blade (16) and a downstream sealing blade (18). There are at least two partitioning walls (20) disposed between the sealing blades (16,18) and attached to the stator housing (14). The clearance between the downstream sealing blade (18) and the shaft (12) is greater than the clearance between the upstream sealing blade (16) and the shaft (12). The damper seal (10) restricts the flow of fluid from regions along the shaft that are at different pressures and damps vibratory or whirl motion of the shaft.
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Shultz Richard R.
Vance John M.
Cummings Scott W.
The Texas A&M University System
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