US 12,460,553 B2
Sealing device and rotating machine
Azumi Yoshida, Tokyo (JP); Ryuji Iwamoto, Tokyo (JP); Hideo Yamamoto, Tokyo (JP); Masaya Kawano, Tokyo (JP); Shin Nishimoto, Tokyo (JP); Tatsuro Furusho, Tokyo (JP); Shintaro Okumura, Tokyo (JP); Kenichi Sakashita, Tokyo (JP); Tsutomu Ogino, Tokyo (JP); and Seemin Daryl Soh, Tokyo (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 18/683,334
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
PCT Filed Jan. 13, 2023, PCT No. PCT/JP2023/000727
§ 371(c)(1), (2) Date Feb. 13, 2024,
PCT Pub. No. WO2023/157520, PCT Pub. Date Aug. 24, 2023.
Claims priority of application No. 2022-023473 (JP), filed on Feb. 18, 2022.
Prior Publication US 2025/0137383 A1, May 1, 2025
Int. Cl. F01D 11/00 (2006.01)
CPC F01D 11/003 (2013.01) [F05D 2240/55 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A sealing device comprising:
a sealing member provided between a rotating part and a stationary part of a rotating machine in a radial direction of the rotating machine;
a holding member that is at least partially accommodated in a groove provided in the stationary part to extend along a circumferential direction and that supports the sealing member to be movable along the radial direction; and
a plurality of first biasing members that are each configured to be accommodated in the holding member and to bias the sealing member along a vertical direction with respect to the holding member and that are provided at a plurality of positions that are different from each other in the circumferential direction, respectively,
wherein the plurality of first biasing members are each configured to generate a biasing force in directions parallel to each other,
wherein the holding member includes
a base part that is accommodated in the groove, and
a protrusion part that protrudes radially inward from the base part, and
the sealing member has a sliding surface that is adjacent to the protrusion part in an axial direction and that is slidable relative to the protrusion part.