Wenderoth, Lind & Ponack, L.L.P.
Shaft sealing apparatus
Provided is a shaft sealing apparatus, which includes a seal ring that is installed in an annular space between a rotor and a stator surrounding an outer circumference side of the rotor, that is formed in a divided structure from a movable seal ring and a stationary seal ring whose circumferential ends are adjacent to each other, and that is configured so that the movable seal ring is biased toward a radial outer side thereof by an elastic body, a seal body that is formed by stacking a plurality of thin seal pieces, which extend from the seal ring toward a radial inner side of the rotor, in a circumferential direction of the rotor, and a communicating part that causes the low-pressure side region and the high-pressure side region to communicate with each other.
MITSUBISHI HEAVY INDUSTRIES, LTD.
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Takashi Shin Tanehiro Hidekazu
Nakano Nishimoto Shinohara Uehara