Title:
SEALING DEVICE AND COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2018/180053
Kind Code:
A1
Abstract:
The present invention comprises a ring part (60), a first fin group (81) that together with a first outer peripheral surface (21) forms a clearance, and a second fin group (83) of which the distal end is positioned farther radially inward than the first outer peripheral surface (21) and which together with a second outer peripheral surface (22) forms a clearance. The ring part (60) has a first gas supply channel (76) capable of supplying a first sealing gas to the first fin group (81), a second gas supply channel (77) capable of supplying a second sealing gas to the second fin group (83), and a mixed gas discharge channel (78) capable of discharging a mixed gas of the first sealing gas and the second sealing gas from between the first fin group (81) and the second fin group (83).
Inventors:
NAKANIWA AKIHIRO (JP)
HIRATA DAISUKE (JP)
HIRATA DAISUKE (JP)
Application Number:
PCT/JP2018/006401
Publication Date:
October 04, 2018
Filing Date:
February 22, 2018
Export Citation:
Assignee:
MITSUBISHI HEAVY IND COMPRESSOR CORP (JP)
International Classes:
F16J15/447; F04D29/10
Foreign References:
| JPH11108201A | 1999-04-20 | |||
| JP2010014051A | 2010-01-21 | |||
| JP2017067380A | 2017-04-06 | |||
| JPS5853961U | 1983-04-12 |
Other References:
See also references of EP 3569899A4
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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