Title:
FILTER LIFE PREDICTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/121861
Kind Code:
A1
Abstract:
This filter life prediction device can predict how long a filter medium can be used (the remaining time). During a first time interval, which is a time during which the filter device filters a liquid, a first differential pressure is detected, which is the differential pressure that is the pressure difference between the high-pressure side and the low-pressure side in the filter device, and on the basis of the first differential pressure and differential pressure characteristics, the remaining life is calculated, which indicates how long the filter medium can be used after said first time interval.
Inventors:
KITAJIMA NOBUYUKI (JP)
SASAKI NOBUKI (JP)
SASAKI NOBUKI (JP)
Application Number:
PCT/JP2019/046956
Publication Date:
June 18, 2020
Filing Date:
December 02, 2019
Export Citation:
Assignee:
YAMASHIN FILTER CORP (JP)
International Classes:
B01D29/00; B01D24/00; B01D35/02; G01L9/14
Foreign References:
| JP2010064031A | 2010-03-25 | |||
| JP2001518187A | 2001-10-09 | |||
| JP2009156174A | 2009-07-16 | |||
| JP2004044585A | 2004-02-12 | |||
| JP2010227899A | 2010-10-14 | |||
| JP2018066665A | 2018-04-26 | |||
| JPS61909Y2 | 1986-01-13 |
Other References:
See also references of EP 3895775A4
Attorney, Agent or Firm:
SAKATA Yukari (JP)
Download PDF: