WO1998009703A1 - Nonreturn valve - Google Patents
Nonreturn valve Download PDFInfo
- Publication number
- WO1998009703A1 WO1998009703A1 PCT/EP1997/004260 EP9704260W WO9809703A1 WO 1998009703 A1 WO1998009703 A1 WO 1998009703A1 EP 9704260 W EP9704260 W EP 9704260W WO 9809703 A1 WO9809703 A1 WO 9809703A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- disc
- check valve
- filter insert
- valve according
- cover
- Prior art date
Links
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
- B01D27/106—Anti-leakage or anti-return valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/34—Seals or gaskets for filtering elements
Definitions
- the invention relates to a check valve.
- check valves are known, e.g. from DE AS 1278403. If one wants such check valves, e.g. use in modern liquid filters, it is disadvantageous because of their complicated geometry that they have to be produced in a complex and expensive manner.
- an approximately annular rubber-elastic disc which is arranged essentially between a cover containing liquid inlet openings and a substantially annular filter insert, the disc being clamped and fastened to the filter insert and the outer radial region of the annular rubber-elastic disc covers all liquid inlet openings of the lid in the event of a kickback.
- the disc only has to prevent the backflow of oil, for example. Axial or radial sealing functions are not taken into account here, which considerably simplifies the geometry of the part and thus inevitably reduces the cost.
- the disc is pierced conically from the hose. This gives the disk a spatial expansion, which is particularly advantageous when bridging larger gaps between the filter insert and cover. This type of spatial configuration can also influence the question of the contact pressure between the disc and the cover.
- the disc consists of hot oil-resistant silicone rubber or comparable elastomers. This will ensure the rubber-elastic properties of the disc over a longer period and at high operating temperatures.
- the filter insert has a disc holder. This simplifies the assembly of the disc. Furthermore, this guarantees that the pane remains securely in place.
- the disc holder is a circumferential annular groove. This ensures that the washer is anchored all round.
- Figure 1 shows a section through a spin-on filter with filter element and associated lid
- the check valve consists of an approximately annular rubber-elastic disc 2, which is arranged essentially between a cover 3 containing liquid inlet openings 6 and a substantially annular filter insert 4, the disc 2 being clamped and fastened to the filter insert 4 and the outer radial region of the annular
- the rubber-elastic disc 3 covers all liquid inlet openings 6 of the cover 3 in the event of a kickback.
- the check valve is housed in the easy-change filter housing 1, as shown in FIG.
- the filter insert 4 has an annular groove 5, by means of which the disc 2 is fixed.
- the annular groove 5 is integrated in the support tube 7 of the filter element 4.
- the filter element 4 has on its end faces a filter insert end face seal 10 and a seal 8 which separates the pure oil side from the crude oil side.
- the seal 8, which is located between the filter element 4, but in particular between its support tube 7 and the cover 3, is designed as a radial seal in FIG. 1.
- the cleaned oil flows through the liquid outlet opening 9 to the internal combustion engine in order to feed the oil into the oil circuit.
- the easy-change filter housing 1 there is one Seal 12, which ensures the seal from the easy-change filter housing 1 to the internal combustion engine.
- the clean oil side is separated from the crude oil side by means of the seal 13, which is arranged between the filter insert receptacle 14 and filter insert 4.
- FIGS. 2a to 2e show different variants of the check valves in the easy-change filter housing 1 from FIG.
- the check valve variant shown in FIG. 2 a has a cover 3 which has liquid inlet openings 6 and a liquid outlet opening 9.
- a seal 8 is attached between the filter insert 4 together with the support tube 7 or its filter insert end face seal 10 and the cover 3. This separates the pure oil in particular from the crude oil side.
- the disc 2 located in the disc receptacle 5 prevents a setback when the flow provided in the easy-change filter decreases or the direction is reversed.
- the exemplary embodiment shown in FIG. 2a has a support 11, by means of which different recoil pressure ranges are coordinated when the support is varied in length or in diameter.
- the check valve shown in Figure 2 b has a cover 3, which has liquid inlet openings 6 and a liquid outlet opening 9.
- the check valve variant shown in FIG. 2 c has a cover 3 which has liquid inlet openings 6 and a liquid outlet opening 9.
- a seal 8 is attached between the filter insert 4 together with the support tube 7 or its filter insert end face seal 10 and the cover 3. This separates the pure oil in particular from the crude oil side.
- the disc 2 located in the disc receptacle 5 prevents a setback when the flow provided in the easy-change filter decreases or the direction is reversed.
- the arrangement of the disc 2 in the area in which the cover geometrically comes closest to the filter insert results in a larger overall diameter of the disc 2 than in the exemplary embodiment according to FIG Distance shorter, material is saved in this way.
- the check valve shown in Figure 2 d has a cover 3, which has liquid inlet openings 6 and a liquid outlet opening 9.
- a seal 8 is attached between the filter insert 4 together with the support tube 7 or its filter insert end face seal 10 and the cover 3. This separates the pure oil in particular from the crude oil side.
- the disc 2 located in the disc receptacle 5 prevents a setback when the flow provided in the easy-change filter decreases or the direction is reversed.
- the disc holder is also an annular groove 5 trained, which leads to simplification of assembly, as well as to the defined positioning of the disc.
- the check valve variant shown in FIG. 2 e has a cover 3 which has liquid inlet openings 6 and a liquid outlet opening 9.
- a seal 8 is attached between the filter insert 4 together with the support tube 7 or its filter insert end face seal 10 and the cover 3. This separates the pure oil in particular from the crude oil side.
- the disc 2 located in the disc receptacle 5 prevents a setback when the flow provided in the easy-change filter decreases or the direction is reversed.
- the disc 2 is arranged most centrally, which leads to a very small inside diameter of the disc 2. Due to the somewhat further path to the cover, the disc must have a slightly larger outer diameter. This configuration leads to somewhat softer disks with the result that in this way e.g. A check valve is created that has a lower opening pressure.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Check Valves (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10512156A JP2001500951A (en) | 1996-09-03 | 1997-08-05 | Check valve |
EP97942847A EP1009510A1 (en) | 1996-09-03 | 1997-08-05 | Nonreturn valve |
BR9711669A BR9711669A (en) | 1996-09-03 | 1997-08-05 | Check valve replacement filter and process for the manufacture of a check valve |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19635624.5 | 1996-09-03 | ||
DE19635624A DE19635624A1 (en) | 1996-09-03 | 1996-09-03 | check valve |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998009703A1 true WO1998009703A1 (en) | 1998-03-12 |
Family
ID=7804436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/004260 WO1998009703A1 (en) | 1996-09-03 | 1997-08-05 | Nonreturn valve |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1009510A1 (en) |
JP (1) | JP2001500951A (en) |
BR (1) | BR9711669A (en) |
DE (1) | DE19635624A1 (en) |
ID (1) | ID17838A (en) |
IL (1) | IL121591A0 (en) |
WO (1) | WO1998009703A1 (en) |
ZA (1) | ZA977213B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2409654A (en) * | 2003-12-03 | 2005-07-06 | Interpet Ltd | Water filtration system with non-return valve |
WO2009076021A1 (en) * | 2007-12-05 | 2009-06-18 | Baldwin Filters, Inc. | Filter having baseplate with internal gasket location |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1017781A (en) * | 1962-01-18 | 1966-01-19 | Purolator Products Inc | Oil filter |
DE1278403B (en) | 1962-03-23 | 1968-09-26 | Gen Motors Ltd | Check valve |
US3774764A (en) * | 1971-03-05 | 1973-11-27 | Baldwin J Manuf Co | Disposable spin-on type oil filters |
EP0322828A1 (en) * | 1987-12-29 | 1989-07-05 | Fiaam Filter S.P.A. | Anti-drainage valve for oil filters for internal combustion engines |
US5405527A (en) * | 1994-02-24 | 1995-04-11 | Dana Corporation | Anti-drainback/pressure-relieved filter cartridges for lubricating oil |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3231089A (en) * | 1963-01-24 | 1966-01-25 | Fram Corp | Filters |
DE1912307U (en) * | 1965-01-19 | 1965-03-18 | Purolator Filter Ges G M B H | PRESSURE DISC FOR PRESSING A NON-RETURN VALVE IN FILTERS. |
DE6602486U (en) * | 1967-07-21 | 1969-06-12 | Loctite Technik Gmbh & Co Kg | CUFF VALVE |
US3640390A (en) * | 1968-05-13 | 1972-02-08 | Torite Enterprises Inc | Replaceable cartridge filter housing |
US3589517A (en) * | 1968-12-04 | 1971-06-29 | Sheller Globe Corp | Filter element, relief and check valve, assembly |
US3608724A (en) * | 1970-01-07 | 1971-09-28 | Baldwin Mfg Co J A | Oil filters with front-end bypass valve |
FR2248069A1 (en) * | 1973-10-19 | 1975-05-16 | Soparis Ste Parisienne Equipem | Oil filter with renewable cartridge - and elastomeric non-return valve which locates positively to facilitate initial assembly and cartridge renewable |
IT1165502B (en) * | 1980-01-11 | 1987-04-22 | Tecnocar Spa | FILTER FOR INTERNAL COMBUSTION ENGINE LUBRICANTS PARTICULARLY FOR VEHICLES |
US4400864A (en) * | 1980-08-25 | 1983-08-30 | Fram Corporation | Fluid filter |
DE3613093A1 (en) * | 1986-04-18 | 1987-10-29 | Mann & Hummel Filter | Filter for liquids, in particular for the lubricating oil of internal-combustion engines |
US4997554A (en) * | 1989-03-14 | 1991-03-05 | Saturn Corporation | Temporary anti-drainback valve opener for an oil filter assembly |
IT1239819B (en) * | 1990-03-26 | 1993-11-15 | Fiaam Filter Spa | LUBRICATION OIL FILTER FOR INTERNAL COMBUSTION ENGINES |
DE4201041A1 (en) * | 1991-09-20 | 1993-07-22 | Knecht Filterwerke Gmbh | Filter for liquids, esp. internal combustion engine lubricants |
DE4124323C2 (en) * | 1991-07-23 | 2001-11-15 | Mahle Filtersysteme Gmbh | Filters for liquids to be screwed onto a mounting head |
DE4140140C2 (en) * | 1991-07-23 | 2002-11-28 | Mahle Filtersysteme Gmbh | Screw-on filter for liquids |
DE4139680C2 (en) * | 1991-12-02 | 1995-08-17 | Porsche Ag | Lube oil filter arrangement for an internal combustion engine |
FR2693919B1 (en) * | 1992-07-23 | 1994-09-30 | Labinal | Improvements to filter cartridges for liquid and to filters fitted with such cartridges. |
US5284579A (en) * | 1992-08-31 | 1994-02-08 | Dana Corporation | One-piece anti-drainback and relief valve |
US5362390A (en) * | 1993-06-28 | 1994-11-08 | Fleetguard, Inc. | Shut-off valve for spin-on filters |
-
1996
- 1996-09-03 DE DE19635624A patent/DE19635624A1/en not_active Ceased
-
1997
- 1997-08-05 JP JP10512156A patent/JP2001500951A/en active Pending
- 1997-08-05 BR BR9711669A patent/BR9711669A/en not_active Application Discontinuation
- 1997-08-05 EP EP97942847A patent/EP1009510A1/en not_active Withdrawn
- 1997-08-05 WO PCT/EP1997/004260 patent/WO1998009703A1/en not_active Application Discontinuation
- 1997-08-12 ZA ZA9707213A patent/ZA977213B/en unknown
- 1997-08-21 IL IL12159197A patent/IL121591A0/en unknown
- 1997-08-27 ID IDP972979A patent/ID17838A/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1017781A (en) * | 1962-01-18 | 1966-01-19 | Purolator Products Inc | Oil filter |
DE1278403B (en) | 1962-03-23 | 1968-09-26 | Gen Motors Ltd | Check valve |
US3774764A (en) * | 1971-03-05 | 1973-11-27 | Baldwin J Manuf Co | Disposable spin-on type oil filters |
EP0322828A1 (en) * | 1987-12-29 | 1989-07-05 | Fiaam Filter S.P.A. | Anti-drainage valve for oil filters for internal combustion engines |
US5405527A (en) * | 1994-02-24 | 1995-04-11 | Dana Corporation | Anti-drainback/pressure-relieved filter cartridges for lubricating oil |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2409654A (en) * | 2003-12-03 | 2005-07-06 | Interpet Ltd | Water filtration system with non-return valve |
GB2409654B (en) * | 2003-12-03 | 2008-06-18 | Interpet Ltd | Water filtration systems and apparatus |
WO2009076021A1 (en) * | 2007-12-05 | 2009-06-18 | Baldwin Filters, Inc. | Filter having baseplate with internal gasket location |
US8132675B2 (en) | 2007-12-05 | 2012-03-13 | Baldwin Filters, Inc. | Filter having baseplate with internal gasket location |
Also Published As
Publication number | Publication date |
---|---|
EP1009510A1 (en) | 2000-06-21 |
IL121591A0 (en) | 1998-02-08 |
JP2001500951A (en) | 2001-01-23 |
DE19635624A1 (en) | 1998-04-09 |
ZA977213B (en) | 1998-03-03 |
BR9711669A (en) | 1999-08-24 |
ID17838A (en) | 1998-01-29 |
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