DE2235837A1 - ONE SIDE RETURN SAFETY FOR SCREW-ON FILTER - Google Patents
ONE SIDE RETURN SAFETY FOR SCREW-ON FILTERInfo
- Publication number
- DE2235837A1 DE2235837A1 DE2235837A DE2235837A DE2235837A1 DE 2235837 A1 DE2235837 A1 DE 2235837A1 DE 2235837 A DE2235837 A DE 2235837A DE 2235837 A DE2235837 A DE 2235837A DE 2235837 A1 DE2235837 A1 DE 2235837A1
- Authority
- DE
- Germany
- Prior art keywords
- screw
- valve
- filter
- protection
- filter according
- 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
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
- B01D27/08—Construction of the casing
-
- 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
- B01D27/103—Bypass or safety valves
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Check Valves (AREA)
- Filtration Of Liquid (AREA)
Description
Reinseitige Riicklaufsicherung für Anschraubfilter Die Erfindung bezieht sich auf einen Anschraubfilter insbesondere für Brennkraftmaschinen mit einer reinseitigen Rücklaufsicherung. Non-return protection for screw-on filters The invention relates to a screw-on filter, in particular for internal combustion engines a non-return valve on the pure side.
Bei bisher bekannten Ausführungen ist die Anschraubpatrone nur mit einer schmutzseitigen Rücklaufsicherung (oder Leerlaufsicherung) versehen. Dies hat den Nachteil, daß bei stehender Anordnung des Filters trotz vorhandener schmutzseitiger Rücklaufsicherung durch das Papier ein Leerlaufen über die Reinseite erfolgen kann. Dies führt speziell bei Ölfiltern zu einem längeren Ausfall des Schmieröl-Kreislaufes, bis der Filter gefüllt ist. Die Neuerung soll die o. a. Mängel beseitigen.In previously known designs, the screw-on cartridge is only with a backflow protection (or idle protection) on the dirt side. this has the disadvantage that when the filter is arranged upright, it is on the dirt side despite the presence of it Backflow protection through the paper an emptying can be done on the clean side. Especially with oil filters, this leads to a longer failure of the lubricating oil circuit, until the filter is filled. The innovation is intended to Eliminate defects.
Figur 1 zeigt den Anschraubfilter mit reinseitiger Rücklaufsicherung im Halbschnitt Figur 2 zeigt die Anordnung der reinseitigen Riicklaufsicherung im Einsatz (Vollschnitt) Figur 3 zeigt eine weitere Ausgestaltung der reinseitigen Rücklaufsicherung.FIG. 1 shows the screw-on filter with a non-return valve on the clean side in half-section Figure 2 shows the arrangement of the clean-side return protection in Insert (full section) Figure 3 shows a further embodiment of the clean-side Backflow protection.
Unter Bezugnahme auf die o. a. Zeichnungen zeigt Figur 1 einen Anschraubfilter vorstehend beschriebener Ausführung, wobei (1) den Zulauf und (2) den Ablauf kennzeichnet. Während des Betriebes wird-durch die entstehende Strömung (3) die Ventilplatte (4), die durch eine Feder (5) vorgespannt wird (auf einen bestimmten Druck) geöffnet und somit der Auslauf für das Medium freigegeben.With reference to the above In the drawings, FIG. 1 shows a screw-on filter of the embodiment described above, where (1) denotes the inlet and (2) denotes the outlet. During operation, the valve plate (4), which is pretensioned by a spring (5) opens (to a certain pressure) and thus the outlet for the medium is released.
In Figur 2 wird der Einbau der reinseitigen Rücklaufsicherung in Verbindung mit dem Filtereinsatz gezeigt. In die vorhandene Endscheibe (6) wird die Feder (5) und die dazugehörige Ventilplatte (4) eingelegt.In Figure 2, the installation of the clean-side backflow protection is in connection shown with the filter insert. The spring (5) is inserted into the existing end plate (6) and the associated valve plate (4) inserted.
Ein Ventilkäfig (7) wird so auf der Endscheibe (6) montiert, daß eine einwandfreie Abdichtung und genügend feste Verbindung entsteht. Die Ventilplatte (4) dichtet auf der Ringsicke (8) des Ventilkäfigs (7) ab.A valve cage (7) is mounted on the end plate (6) that a A perfect seal and a sufficiently strong connection are created. The valve plate (4) seals on the ring bead (8) of the valve cage (7).
Die Ventilplatte (4) weist bis Kante (9) eine geschlossene runde Form auf und ist dann bis auf schmale Stege (10) ausgespannt; dadurch ist ein freier Ölabfluß während des Betriebes gewährleistet.The valve plate (4) has a closed, round shape up to the edge (9) on and is then stretched out except for narrow webs (10); this results in free oil drainage guaranteed during operation.
Die an der Ventilplatte (4) sich auf den schmalen Stegen (10) erstreckende erhöhte Auflage (11) dient zur Begrenzung des Federweges, damit keine Blockbildung der Feder (5) entsteht, die den Ölablauf hemmen oder zam Stillstand bringen würde.The one on the valve plate (4) extending over the narrow webs (10) increased support (11) is used to limit the spring deflection so that no blockage is formed the spring (5) arises, which would inhibit the oil drainage or bring it to a standstill.
Eine weitere Ausführung der reinseitigen Rücklaufsicherung zeigt Figur 3. Hierbei wird die bereits vorhandene Endscheibe (6) sowie ein Ventilkäfig (12) verwendet. In den Ventilkäfig (12), der mit einer flingsicke (13) und Öffnungen (14) versehen ist, wird eine Gummischeibe (15) sowie eine mit Schlitzen versehene Federscheibe (16) mit Hilfe eines Formringes (17), der am Ventilkäfig befestigt wird, dichtend über die Auflage (18) angedrückt.Another embodiment of the non-return valve on the clean side is shown in FIG 3. Here, the existing end plate (6) and a valve cage (12) used. In the valve cage (12) with a flingsicke (13) and openings (14) is provided, a rubber washer (15) and one with slots Spring washer (16) with the help of a molded ring (17) which is attached to the valve cage is pressed sealingly over the support (18).
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2235837A DE2235837A1 (en) | 1972-07-21 | 1972-07-21 | ONE SIDE RETURN SAFETY FOR SCREW-ON FILTER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2235837A DE2235837A1 (en) | 1972-07-21 | 1972-07-21 | ONE SIDE RETURN SAFETY FOR SCREW-ON FILTER |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2235837A1 true DE2235837A1 (en) | 1974-01-31 |
Family
ID=5851289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2235837A Pending DE2235837A1 (en) | 1972-07-21 | 1972-07-21 | ONE SIDE RETURN SAFETY FOR SCREW-ON FILTER |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2235837A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4885082A (en) * | 1987-04-13 | 1989-12-05 | Ital Idee S.R.L. An Italian Limited Liability Company | Multiple lubricating oil filter for internal combustion engines, with a member for monitoring the degree of clogging of the filtration surface |
US5350506A (en) * | 1992-01-30 | 1994-09-27 | Navistar International Transporation Corporation | Anti-drain fluid filter |
US5374355A (en) * | 1991-12-17 | 1994-12-20 | Filterwerk Mann & Hummel Gmbh | Filter for fuels or lubricants of an internal combustion engine |
US6068762A (en) * | 1995-09-29 | 2000-05-30 | Parker-Hannifin Corporation | Reusable oil filter assembly |
-
1972
- 1972-07-21 DE DE2235837A patent/DE2235837A1/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4885082A (en) * | 1987-04-13 | 1989-12-05 | Ital Idee S.R.L. An Italian Limited Liability Company | Multiple lubricating oil filter for internal combustion engines, with a member for monitoring the degree of clogging of the filtration surface |
US5374355A (en) * | 1991-12-17 | 1994-12-20 | Filterwerk Mann & Hummel Gmbh | Filter for fuels or lubricants of an internal combustion engine |
US5350506A (en) * | 1992-01-30 | 1994-09-27 | Navistar International Transporation Corporation | Anti-drain fluid filter |
US6068762A (en) * | 1995-09-29 | 2000-05-30 | Parker-Hannifin Corporation | Reusable oil filter assembly |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OHN | Withdrawal |