Title:
ROTATABLY SUPPORTING DEVICE
Document Type and Number:
Japanese Patent JP2008223842
Kind Code:
A
Abstract:
To provide a structure capable of preventing the occurrence of damage, rust, or the like in an environment where wind blows including much garbage and salinity, near the sea or the like.
A controller 11 is arranged for controlling operation and stopping of a compressor 10 based on a signal from a pressure sensor 17 measuring internal pressure of a bearing box 13 constituting a plummer block 7. Clean air passing through a filter 12 is sent inside the bearing box 13 by this compressor 10, and the inside of this bearing box 13 is set to atmospheric pressure or more. Such a constitution can solve the problem by preventing intrusion of the salinity and the garbage inside the bearing box 13.
Inventors:
NISHIMATSU KENJI
Application Number:
JP2007061305A
Publication Date:
September 25, 2008
Filing Date:
March 12, 2007
Export Citation:
Assignee:
NSK LTD
International Classes:
F16C33/80; F03D9/00; F03D11/00; F16C33/78
Attorney, Agent or Firm:
Takeo Koyama
Takashi Daejeon
Masaki Muto
Kinzo Koyama
Takashi Daejeon
Masaki Muto
Kinzo Koyama