Title:
LAMINATED FILTER
Document Type and Number:
Japanese Patent JP2004237169
Kind Code:
A
Abstract:
To provide a laminated filter in which increases in an initial pressure loss and a pressure loss with the passage of time of use are reduced and which has good dust removing performance and can efficiently remove dust including fine particle and coarse particles.
In the laminated filter 1, first dust removing layers 2 excellent in performance for catching coarse particles of 5 μm or above in particle size and second dust removing layers 3 excellent in performance for catching fine particles of below 5 μm in particle size are laminated alternately. Treating fluid is passed in a direction crossing the lamination direction of the dust removing layers 2 and 3.
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Inventors:
MORI HISASHI
KUWABARA TADASHI
SHIGYO YASUSHIGE
YAMAMOTO TOSHIHIRO
KUWABARA TADASHI
SHIGYO YASUSHIGE
YAMAMOTO TOSHIHIRO
Application Number:
JP2003027281A
Publication Date:
August 26, 2004
Filing Date:
February 04, 2003
Export Citation:
Assignee:
BRIDGESTONE CORP
International Classes:
B01D39/16; B01D39/14; B01D41/04; B03C3/28; B32B27/40; (IPC1-7): B01D39/16; B01D39/14; B01D41/04; B03C3/28
Attorney, Agent or Firm:
Tsuyoshi Shigeno