Title:
回転機械
Document Type and Number:
Japanese Patent JP6584617
Kind Code:
B2
Abstract:
A rotary machine includes a seal device capable of restricting a flow of a fluid in a clearance between a stationary member and a rotational member. The seal device includes a pressure loss element mounted to the stationary member, a first non-contact type seal protruding from the rotational member toward the pressure loss element and facing the pressure loss element via a first gap, and a second non-contact type seal protruding from the stationary member toward the rotational member, facing the rotational member via a second gap, and being positioned on one side of the pressure loss element in a flow direction of the fluid. The seal device also includes a contact type seal protruding from the stationary member toward the rotational member and being disposed downstream of the pressure loss element and the second non-contact type seal in the flow direction of the fluid.
Inventors:
Katsuto Araki
Noriyuki Okabe
Ryosuke Sannohe
High Mura Keita
Shinya Hashimoto
Noriyuki Okabe
Ryosuke Sannohe
High Mura Keita
Shinya Hashimoto
Application Number:
JP2018186968A
Publication Date:
October 02, 2019
Filing Date:
October 01, 2018
Export Citation:
Assignee:
Mitsubishi Hitachi Power Systems Co., Ltd.
International Classes:
F02C7/28; F01D25/16; F04D29/10; F16J15/447
Domestic Patent References:
| JP201466134A | ||||
| JP201185138A | ||||
| JP2014141912A |
Attorney, Agent or Firm:
Seishin ip patent business corporation