Wenderoth, Lind & Ponack, L.L.P.
Shaft sealing device, and rotary machine equipped therewith
A shaft sealing device and a rotary machine equipped therewith are provided with a sealing body configured by stacking a plurality of thin sealing pieces; and a low-pressure-side side sealing plate in which a plate surface facing the low-pressure side is pressed against an inner wall surface of the housing facing the direction of the axis by means of the pressure of a fluid applied from a high-pressure side to the low-pressure side. A protrusion for blocking a downward flow toward the inside of the low-pressure-side side sealing plate in the radial direction along the low-pressure side of the sealing body is formed on the inside of the low-pressure-side side sealing plate in the radial direction, and a communication path for guiding the downward flow blocked by means of the protrusion to a low-pressure-side region is formed on the housing.
MITSUBISHI HEAVY INDUSTRIES, LTD.
F F F F
F05D F01D F16J F01D
additional inventional inventional inventional
Shin Takashi Tanehiro Hidekazu
Nishimoto Nakano Shinohara Uehara