Wenderoth, Lind & Ponack, L.L.P.
Shaft sealing mechanism, structure for mounting shaft sealing mechanism on stator, and turbine
A shaft sealing mechanism of an annular shape having at least one divided portion, which is installed in an annular space between a rotor and a stator, includes a group of thin plates. Outer peripheral ends of the thin plates are joined, and inner peripheral free ends come in contact with the rotor in a sliding manner so that a surface of the rotor and the thin plates form an acute angle to partition the annular space into a high-pressure region and a low-pressure region without being joined. At least a low-pressure gap near the divided portion is set to be larger than a low-pressure gap in a circumferential direction other than near the divided portion.
Mitsubishi Heavy Industries, Ltd.
F
F16J
inventional
Hidekazu Tanehiro Shin Takashi
Uehara Shinohara Nishimoto Nakano