Title:
LABYRINTH SEAL DEVICE AND TURBO MACHINERY
Document Type and Number:
Japanese Patent JP2016156421
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a labyrinth seal device or the like capable of sufficiently suppressing occurrence of damage and capable of effectively reducing leakage of a fluid.SOLUTION: The labyrinth seal device comprises a seal ring segment 50A and a main elastic body 70 and seals a clearance between a rotational body 3 that is rotated by making a working fluid flow in an axial direction along a rotation axis AX, and a stationary body 41 that is disposed around the rotational body 3 in a radial direction of the rotational body 3. The seal ring segment 50A is supported by the stationary body 41 so as to be moved in a radial direction, and a seal fin 60 is provided on an inner peripheral surface. The main elastic body 70 is installed between the stationary body 41 and the seal ring segment 50A and energizes the seal ring segment 50A radially insides. A plurality of seal ring segments 50A are disposed in a circumferential direction of the rotational body 3, and a plurality of main elastic bodies 70 are disposed in the circumferential direction of the rotational body 3 correspondingly to each of the plurality of seal ring segments 50A.SELECTED DRAWING: Figure 1
Inventors:
YOKOE HARUKA
YAMASHITA TATSUO
ONODA AKIHIRO
TOMINAGA JUNICHI
MURATA YORIJI
OHASHI SHINICHIRO
YAMASHITA TATSUO
ONODA AKIHIRO
TOMINAGA JUNICHI
MURATA YORIJI
OHASHI SHINICHIRO
Application Number:
JP2015033610A
Publication Date:
September 01, 2016
Filing Date:
February 24, 2015
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
F16J15/447; F01D11/00; F01D25/00; F02C7/28
Attorney, Agent or Firm:
Patent Business Corporation Sakura International Patent Office