GB369953A - Improvements in or relating to filtering systems - Google Patents
Improvements in or relating to filtering systemsInfo
- Publication number
- GB369953A GB369953A GB2802030A GB2802030A GB369953A GB 369953 A GB369953 A GB 369953A GB 2802030 A GB2802030 A GB 2802030A GB 2802030 A GB2802030 A GB 2802030A GB 369953 A GB369953 A GB 369953A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- liquid
- flow
- passage
- filter
- 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.)
- Expired
Links
- 238000001914 filtration Methods 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 abstract 9
- 239000003921 oil Substances 0.000 abstract 2
- 239000002699 waste material Substances 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
- B01D29/48—Edge filtering elements, i.e. using contiguous impervious surfaces of spirally or helically wound bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/147—Bypass or safety valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/153—Anti-leakage or anti-return valves
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
369,953. Filters; valves. WHITE, A. E., 5, Quality Court, Chancery Lane, London.-(Motor Improvements, Inc. ; 365, Frelinghuysen Avenue, Newark, New Jersey, U.S.A.) Sept. 19, 1930, No. 28020. [Class 46.] The pressure of the liquid flow opens the inlet valve of a filter and compresses a body of air or other gas, which, on cessation of normal flow, causes a reverse cleansing flow through the filter, the reverse flow being automatically limited by valve or like means. The arrangement is described as adapted for filtering the lubricating oil of an internal-combustion engine or oil supplied to a burner. The liquid supplied to the apparatus shown in Fig. 1 pushes the valve 132 back against the resistance of the spring 133, so that the liquid can flow through a passage 127 to a chamber 126 and raise a piston 130 therein. When the piston is raised sufficiently, the liquid passes through an aperture 128 into the space surrounding a filter element 16. As shown the element comprises a ribbed metal ribbon 18 wound helically to form a cylinder which is held between an upper cap 19 and a cup 121. The element is held in position by a clamping member 14 which screws on to a central pipe 12, the lower end of which screws into the base 10. The clamping member also serves to hold the outer casing 11 against the base. The filter element is supported internally by a fluted drum 17, the base 20 of which has a central aperture 20a loosely surrounding the pipe 12. The filtered liquid passes down the flutings of the drum to the cup 121 and thence through an aperture 123 into the pipe 12 and away by an outlet passage 124. The head on the discharge causes liquid to rise within the drum 17 and compresses air therein. With cessation of the liquid supply the valve 132 closes and the compressed air causes a reverse flow, liquid passing through the passage 127 to a waste passage 137. Reverse flow is limited as it ceases when the piston 130 falls below the aperture 128. The waste passage 137 is closed during normal flow but excessive supply pressure overcomes the resistance of a second spring 134 surrounding a rod 136 and engaging the valve 132 so that the valve moves to open the passage 137. There is also a byepass controlled by a spring-loaded valve 39 between the passages 127, 124. In the modified arrangement shown in Fig. 5 the cylinder 126 is omitted, and the reverse flow is limited by the valve 132 which has a cylindrical skirt with apertures which coincide with the openings for the passages 127, 137 for only a limited period during the backward movement of the valve. To facilitate the movement of the valve 132 the end of the rod 136 is provided with a small byepass bore 40. Fig. 7 shows diagrammatically an arrangement in which oil is cleansed by a filter U as it is transferred by a pump P from a tank T to a burner Z. Air, compressed in a dome D during normal flow, causes a reverse cleansing flow of liquid to enter the filter through a restricted passage O when the pump P is stopped, a check valve V then closing the connection between the dome and the burner. A byepass controlled by a relief valve is provided round the pump.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2802030A GB369953A (en) | 1930-09-19 | 1930-09-19 | Improvements in or relating to filtering systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2802030A GB369953A (en) | 1930-09-19 | 1930-09-19 | Improvements in or relating to filtering systems |
Publications (1)
Publication Number | Publication Date |
---|---|
GB369953A true GB369953A (en) | 1932-03-21 |
Family
ID=10268968
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2802030A Expired GB369953A (en) | 1930-09-19 | 1930-09-19 | Improvements in or relating to filtering systems |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB369953A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4500435A (en) * | 1979-08-08 | 1985-02-19 | Drm, Dr. Muller Ag | Method and apparatus for cleaning pressure filters |
-
1930
- 1930-09-19 GB GB2802030A patent/GB369953A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4500435A (en) * | 1979-08-08 | 1985-02-19 | Drm, Dr. Muller Ag | Method and apparatus for cleaning pressure filters |
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