Title:
SHAFT SEALING DEVICE FOR MARINE CONTRA-ROTATING PROPELLER DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/097816
Kind Code:
A1
Abstract:
This shaft sealing device 50 is provided with a stern tube seal 52 on the stern side, a contra-rotating seal 54 on the stern side, a single air supply device 56, a stern tube drainage recovery device 58, and a contra-rotating drainage recovery device 60. The single air supply device 56 supplies sealing air A to the stern tube seal 52 on the stern side and to the contra-rotating seal 54 on the stern side via the stern tube seal 52. The stern tube drainage recovery device 58 independently recovers a front section drainage D1 discharged from the stern tube seal 52 on the stern side. The contra-rotating drainage recovery device 60 separates and recovers, from the front section drainage D1, a rear section drainage D2 discharged from the contra-rotating seal 54 on the stern side.
Inventors:
SHIMIZU MASAHIRO (JP)
NISHIYAMA SAIKI (JP)
MISAWA SHINGO (JP)
NAKAIE MASASHI (JP)
OKAMOTO MITSUHIRO (JP)
TANEGUCHI SHUN (JP)
NISHIYAMA SAIKI (JP)
MISAWA SHINGO (JP)
NAKAIE MASASHI (JP)
OKAMOTO MITSUHIRO (JP)
TANEGUCHI SHUN (JP)
Application Number:
PCT/JP2018/032566
Publication Date:
May 23, 2019
Filing Date:
September 03, 2018
Export Citation:
Assignee:
JAPAN MARINE UNITED CORP (JP)
WARTSILA JAPAN LTD (JP)
WARTSILA JAPAN LTD (JP)
International Classes:
B63H23/36; B63H5/10; F16C17/02; F16C33/74; F16J15/18; F16J15/324; F16N7/22; F16N7/38; F16N11/08; F16N13/22; F16N31/00
Foreign References:
JP2009179233A | 2009-08-13 | |||
JPH0496597U | 1992-08-20 | |||
JPH02130425U | 1990-10-26 | |||
JPH0431367U | 1992-03-13 | |||
JPH06321184A | 1994-11-22 | |||
JPS6144397U | 1986-03-24 | |||
JPS62197497A | 1987-09-01 | |||
JPH07251795A | 1995-10-03 |
Other References:
SAITO KENICHI: "Optimization of Seal Devices for Contra-rotating Propellers", JOURNAL OF THE JIME, vol. 52, no. 2, March 2017 (2017-03-01), pages 166 - 169, XP055683234, DOI: 10.5988/jime.52.166
KIDO YOSHITAKA: "Sealing device for podded propulsion system with contra-rotating propellers", JOURNAL OF THE JIME, vol. 39, no. 9, 1 September 2004 (2004-09-01), pages 577 - 581, XP055683240, ISSN: 1884-3778, DOI: 10.5988/jime.39.577
OTA TETSUZO ET AL.: "World first contra-rotating propellers using VLCC Winning Marine Engineering of the Year", JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN, vol. 30, no. 1, January 1995 (1995-01-01), pages 9 - 16, XP055609324, ISSN: 1884-4758
See also references of EP 3715240A4
KIDO YOSHITAKA: "Sealing device for podded propulsion system with contra-rotating propellers", JOURNAL OF THE JIME, vol. 39, no. 9, 1 September 2004 (2004-09-01), pages 577 - 581, XP055683240, ISSN: 1884-3778, DOI: 10.5988/jime.39.577
OTA TETSUZO ET AL.: "World first contra-rotating propellers using VLCC Winning Marine Engineering of the Year", JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN, vol. 30, no. 1, January 1995 (1995-01-01), pages 9 - 16, XP055609324, ISSN: 1884-4758
See also references of EP 3715240A4
Attorney, Agent or Firm:
HOTTA Minoru (JP)
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