Seal for a joint or juncture – Seal between relatively movable parts – Brush seal
Reexamination Certificate
2005-12-20
2005-12-20
Pickard, Alison (Department: 3676)
Seal for a joint or juncture
Seal between relatively movable parts
Brush seal
C277S413000, C277S416000
Reexamination Certificate
active
06976680
ABSTRACT:
The shaft seal structure is based on a leaf seal that includes springs, disposed between the stator blades and the leaf seal ring, to force the leaf seal ring away from the rotation shaft, and pressure guiding grooves for guiding the fluid pressure, through a boundary of planar plates, to a space between the outer peripheral surface of the leaf seal ring and the inner peripheral surface of the stator blade. Also, a turbine may be provided with the leaf seal so as to reduce gas leakage from the high-pressure-region to the low-pressure-region as well as to control the frictional wear between the planar plates and the rotation shaft.
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Akagi Kouichi
Nakano Takashi
Nishimoto Shin
Shinohara Tanehiro
Uehara Hidekazu
Mitsubishi Heavy Industries Ltd.
Patel Vishal
Pickard Alison
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