JPS5599313A - Oil filter unit - Google Patents
Oil filter unitInfo
- Publication number
- JPS5599313A JPS5599313A JP781779A JP781779A JPS5599313A JP S5599313 A JPS5599313 A JP S5599313A JP 781779 A JP781779 A JP 781779A JP 781779 A JP781779 A JP 781779A JP S5599313 A JPS5599313 A JP S5599313A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- particle size
- contaminants
- small particle
- filters
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Filtration Of Liquid (AREA)
Abstract
PURPOSE: To conduct filtration without being interrupted, by replacing one of two filters in service with the other filter, when the former has been clogged with contaminants of small particle size, e.g., varnish sludge etc.
CONSTITUTION: The second filter 2, which is hardly clogged with contaminants of small particle size such as varnish sludge etc., consequently of low contaminant- collection efficiency compared with the first filter 1, is connected through a by-pass valve 3 in parallel with the first filter 1, in addn., a by-pass valve 4 is connected in parallel with the two filters. The first filter 1 indicates collection efficiency equal to ordinary filters, i.e., tens of percent for small particle size contaminants (secondary harmful material) such as varnish sludge, while the second filter 2 indicates smaller collection efficiency for the small particle size contaminants. When the press. loss of the first filter 1 reaches a prescribed value, the filtration is conducted by means of the second filter 2. This filter is suitable for use in lubrication system of an internal combustion engine.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP781779A JPS5599313A (en) | 1979-01-26 | 1979-01-26 | Oil filter unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP781779A JPS5599313A (en) | 1979-01-26 | 1979-01-26 | Oil filter unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5599313A true JPS5599313A (en) | 1980-07-29 |
Family
ID=11676137
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP781779A Pending JPS5599313A (en) | 1979-01-26 | 1979-01-26 | Oil filter unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5599313A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015181423A1 (en) | 2014-05-26 | 2015-12-03 | Endesa Generación, S.A. | Method for eliminating varnish from lubricating oils |
CN108472565A (en) * | 2016-01-29 | 2018-08-31 | 罗伯特·博世有限公司 | There are two the filter elements of filter medium for tool |
-
1979
- 1979-01-26 JP JP781779A patent/JPS5599313A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015181423A1 (en) | 2014-05-26 | 2015-12-03 | Endesa Generación, S.A. | Method for eliminating varnish from lubricating oils |
CN108472565A (en) * | 2016-01-29 | 2018-08-31 | 罗伯特·博世有限公司 | There are two the filter elements of filter medium for tool |
US11642612B2 (en) | 2016-01-29 | 2023-05-09 | Robert Bosch Gmbh | Filter element having two filter media |
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