US 12,281,708 B2
Seal device
Norihisa Takei, Tokyo (JP); Hidekazu Uehara, Tokyo (JP); Takumi Hori, Tokyo (JP); Kohei Ozaki, Tokyo (JP); Azumi Yoshida, Tokyo (JP); Masaya Kawano, Tokyo (JP); Shin Nishimoto, Yokohama (JP); Tatsuro Furusho, Yokohama (JP); and Shintaro Okumura, Yokohama (JP)
Assigned to MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
Appl. No. 18/028,031
Filed by MITSUBISHI HEAVY INDUSTRIES, LTD., Tokyo (JP)
PCT Filed Sep. 14, 2021, PCT No. PCT/JP2021/033766
§ 371(c)(1), (2) Date Mar. 23, 2023,
PCT Pub. No. WO2022/113483, PCT Pub. Date Jun. 2, 2022.
Claims priority of application No. 2020-195479 (JP), filed on Nov. 25, 2020.
Prior Publication US 2023/0341056 A1, Oct. 26, 2023
Int. Cl. F16J 15/44 (2006.01); F16J 15/447 (2006.01); F01D 11/02 (2006.01)
CPC F16J 15/447 (2013.01) [F01D 11/02 (2013.01); F05D 2240/55 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A seal device comprising:
a movable seal ring disposed to be displaceable in a radial direction in a state of facing an outer peripheral surface of a rotor rotatable around an axis;
first elastic members provided respectively at each of two end surfaces in a circumferential direction of the movable seal ring;
a pressing part provided at an end portion in the circumferential direction of the movable seal ring and configured to press one of the first elastic members; and
a restriction part that restricts displacement of the pressing part in a direction opposite to a compression direction in a state where the one of the first elastic members is elastically deformed in the compression direction by the pressing part,
wherein at least a part of the pressing part protrudes from the end portion of the movable seal ring in the circumferential direction of the movable seal ring.