GB1237093A - Filters for liquids - Google Patents
Filters for liquidsInfo
- Publication number
- GB1237093A GB1237093A GB28131/68A GB2813168A GB1237093A GB 1237093 A GB1237093 A GB 1237093A GB 28131/68 A GB28131/68 A GB 28131/68A GB 2813168 A GB2813168 A GB 2813168A GB 1237093 A GB1237093 A GB 1237093A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screen
- valve
- pass
- flap
- under pressure
- 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
- 239000007788 liquid Substances 0.000 title 1
- 239000011888 foil Substances 0.000 abstract 2
- 238000005452 bending Methods 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000000452 restraining effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
- B01D27/10—Safety devices, e.g. by-passes
-
- 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
- B01D35/005—Filters specially adapted for use in internal-combustion engine lubrication or fuel systems
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
1,237,093. Oil filter. GENERAL MOTORS Ltd. 5 June, 1969 [13 June, 1968], No. 28131/ 68. Heading BID. [Also in Division F2] An oil filter for an I.C. engine has a main filter element 12 (Fig. 2) across which is connected a main pressure-operated by-pass valve 10, an upstream wire screen 6 protecting valve 10 and the oil circuit against passage of completely unfiltered oil when valve 10 opens, and a further by-pass valve 8 being connected across screen 6 and opening if the screen clogs. In Fig. 2, valve 8 is a resilient collar which is compressible to uncover apertures 7 when the pressure across screen 6 rises, and other figures illustrate alternative types of valve 8. In Fig. 3 (not shown) the valve comprises thin portions (19) of a cylindrical elastomeric wall which deform under pressure away from end disc (16) of the filter element. Studs (21) secure the wall and screen 6 to disc (16). Fig. 4 (not shown) illustrates a similar valve but having a square crosssection with corner posts 32 (Fig. 4a) which are bent inwards to engage flexible wall sections 31 when the valve-screen unit is in place, sections 31 bending under pressure to by-pass the screen. In Fig. 5 (not shown) screen 6 is mounted across an aperture in a flap (43) which bends to open the valve, an extension (44) of the flap restraining solids trapped by screen 6 from passing through the aperture. In Fig. 6 (not shown) screen 6 is loaded by a spring and moves off its annular seat to by-pass the screen. Fig. 7 shows a composite valve annulus 64 with a flap 65, which acts as an anti-drain valve for the filter cartridge, and a flap 63 which serves as the main by-pass valve across filter element 62. Screen 6 is of annular form and is by-passed by deformation of portion 74 of resilient annulus 73. Fig. 8 shows a cylindrical screen 6, one end of which is closed by a metal foil 82 which ruptures under pressure to by-pass the screen. In Fig. 9 (not shown) the construction is similar but the foil and screen are interchanged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28131/68A GB1237093A (en) | 1968-06-13 | 1968-06-13 | Filters for liquids |
| FR6919757A FR2010841A1 (en) | 1968-06-13 | 1969-06-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB28131/68A GB1237093A (en) | 1968-06-13 | 1968-06-13 | Filters for liquids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1237093A true GB1237093A (en) | 1971-06-30 |
Family
ID=10270752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28131/68A Expired GB1237093A (en) | 1968-06-13 | 1968-06-13 | Filters for liquids |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2010841A1 (en) |
| GB (1) | GB1237093A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5160037A (en) * | 1991-03-07 | 1992-11-03 | Lecour Edward M | Filter assembly having by-pass system |
| US5395518A (en) * | 1993-08-31 | 1995-03-07 | Donaldson Company, Inc. | High pressure filter with integral relief valve |
| CN114053771A (en) * | 2020-07-28 | 2022-02-18 | 中国航发商用航空发动机有限责任公司 | Filter assembly and aircraft engine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0756512B1 (en) * | 1995-02-22 | 1999-05-06 | Parker Hannifin Oy | Filter provided with a bypass opening |
-
1968
- 1968-06-13 GB GB28131/68A patent/GB1237093A/en not_active Expired
-
1969
- 1969-06-13 FR FR6919757A patent/FR2010841A1/fr not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5160037A (en) * | 1991-03-07 | 1992-11-03 | Lecour Edward M | Filter assembly having by-pass system |
| US5395518A (en) * | 1993-08-31 | 1995-03-07 | Donaldson Company, Inc. | High pressure filter with integral relief valve |
| CN114053771A (en) * | 2020-07-28 | 2022-02-18 | 中国航发商用航空发动机有限责任公司 | Filter assembly and aircraft engine |
| CN114053771B (en) * | 2020-07-28 | 2023-01-06 | 中国航发商用航空发动机有限责任公司 | Filter assembly and aircraft engine |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2010841A1 (en) | 1970-02-20 |
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