Title:
OIL CIRCULATION SYSTEM FOR STERN TUBE AND VESSEL
Document Type and Number:
Japanese Patent JP2018197098
Kind Code:
A
Abstract:
To have a gravity type head tank unnecessary in an oil circulation system for stern tube.SOLUTION: An oil circulation system for stern tube includes a pressure regulator valve device provided in a first oil passage from a first oil chamber 12 to a tank including at least either one of an oil chamber in a stern tube 10 covering a propeller shaft 2 and an oil chamber inside a seal device 101 provided adjacent to the stern tube 10, for adjusting hydraulic pressure inside the first oil chamber 12. It is preferable that the pressure regulator valve device includes a first valve for adjusting the hydraulic pressure to a pressure corresponding to a first set pressure and a second valve for adjusting the hydraulic pressure to the pressure corresponding to a second set pressure which is higher than the first set pressure.SELECTED DRAWING: Figure 1
Inventors:
OKAMOTO MITSUO
HIMENO NOBUHIRO
FUJII MASAHIKO
HIMENO NOBUHIRO
FUJII MASAHIKO
Application Number:
JP2018038415A
Publication Date:
December 13, 2018
Filing Date:
March 05, 2018
Export Citation:
Assignee:
WARTSILA JAPAN LTD
International Classes:
B63H23/36; F16J15/3204
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito