DE9314210U1 - check valve - Google Patents
check valveInfo
- Publication number
- DE9314210U1 DE9314210U1 DE9314210U DE9314210U DE9314210U1 DE 9314210 U1 DE9314210 U1 DE 9314210U1 DE 9314210 U DE9314210 U DE 9314210U DE 9314210 U DE9314210 U DE 9314210U DE 9314210 U1 DE9314210 U1 DE 9314210U1
- Authority
- DE
- Germany
- Prior art keywords
- check valve
- closing body
- valve seat
- pressure
- housing
- 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 - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 claims description 8
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/04—Check valves with guided rigid valve members shaped as balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/084—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet the magnet being used only as a holding element to maintain the valve in a specific position, e.g. check valves
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
- G11B23/04—Magazines; Cassettes for webs or filaments
- G11B23/08—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends
- G11B23/107—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends using one reel or core, one end of the record carrier coming out of the magazine or cassette
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
- Compressor (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
BASF Magnetics GmbH 930113 o.Z. 0078/06150BASF Magnetics GmbH 930113 n.a. 0078/06150
Rückschlagventilcheck valve
Beschreibung
5Description
5
Die Erfindung betrifft ein Rückschlagventil für ein unter Druck stehendes Medium, bestehend aus einem Gehäuse mit einem Einlaß und einem Auslaß, einem darin gebildeten, einlaßseitigen Ventilsitz für einen diesen abschließenden und unter dem Mediumdruck in eine Öffnungsstellung bewegbaren Schließkörper und diesen gegen einen begrenzten Öffnungsdruck im Ventilsitz haltenden Mitteln.The invention relates to a check valve for a medium under pressure, consisting of a housing with an inlet and an outlet, a valve seat formed therein on the inlet side for a closing body which closes this and can be moved into an opening position under the medium pressure, and means for holding this in the valve seat against a limited opening pressure.
Bei den bisher üblichen Rückschlagventilen drückt eine am Gehäuse abgestützte Feder den Schließkörper, gewöhnlich eine Kugel, in den Ventilsitz. Der Öffnungsdruck ist bei diesen Ventilen von der Federkraft abhängig. Rückschlagventile, die ohne Feder arbeiten, sind lageabhängig, da die Schließkraft durch das Gewicht der Kugel bestimmt wird. Der Öffnungsdruck ist bei diesen Ventilen daher gering.In the check valves that have been used up to now, a spring supported on the housing presses the closing body, usually a ball, into the valve seat. The opening pressure in these valves depends on the spring force. Check valves that work without a spring are position-dependent, since the closing force is determined by the weight of the ball. The opening pressure in these valves is therefore low.
Soll ein Rückschlagventil sowohl lageunabhängig als auch mit einem geringen Öffnungsdruck arbeiten, sind Ventile mit einer Druckfeder von Nachteil, da außer dem Eigengewicht der Kugel noch die Federkraft überwunden werden muß.If a check valve is to work both independently of position and with a low opening pressure, valves with a compression spring are disadvantageous, since in addition to the weight of the ball, the spring force must also be overcome.
Dementsprechend liegt vorliegender Erfindung die Aufgabe zugrunde, ein Rückschlagventil zu entwickeln, das sowohl lageunabhängig arbeitet als auch bei geringem Druck des Mediums öffnet.Accordingly, the present invention is based on the object of developing a check valve that works independently of position and also opens at low pressure of the medium.
Zur Lösung der Aufgabe wird ein Rückschlagventil der eingangs geschilderten Art vorgeschlagen, bei dem erfindungsgemäß das den Ventilsitz bildende Material magnetisch ist und der Schließkörper aus ferromagnetischem Material besteht.To solve the problem, a check valve of the type described above is proposed, in which, according to the invention, the material forming the valve seat is magnetic and the closing body consists of ferromagnetic material.
Weitere Einzelheiten und besondere Ausführungen des Rückschlagventils nach der Erfindung sind anhand eines in der Zeichnung dargestellten Ausführungsbeispiels nachfolgend beschrieben.Further details and special designs of the check valve according to the invention are described below using an embodiment shown in the drawing.
Das Rückschlagventil besteht aus einem Gehäuse 1 mit einem Einlaß 2 und einem Auslaß 3 für das unter Druck stehende Medium. In der vorliegenden Ausführungsform ist der Auslaß in einem das Gehäuse abschließenden Deckel 4 gebildet, dessen Befestigungsmittel nicht näher gezeigt sind. Diese können übliche Verbindungselemente sein wie Schrauben, Kleben oder Preßsitz. 45The check valve consists of a housing 1 with an inlet 2 and an outlet 3 for the pressurized medium. In the present embodiment, the outlet is formed in a cover 4 that closes the housing, the fastening means of which are not shown in detail. These can be conventional connecting elements such as screws, adhesive or a press fit. 45
BASF Magnetics GmbH 930113 °·&zgr;· 0078/06150BASF Magnetics GmbH 930113 °· &zgr; · 0078/06150
Einlaßseitig ist im Gehäuse 1 ein dichtendes Teil 5 angeordnet, das eine den Einlaß 2 verlängernde Bohrung 6 aufweist. Die Bohrung läuft zum Gehäuseinneren hin in einen Ventilsitz 7 für einen als Kugel 8 ausgeführten Schließkörper aus. Das Teil 5 besteht aus magnetischem Material, beispielsweise einem flexiblen magnetischen Körper, so daß die aus ferromagnetischem Material bestehende, frei bewegliche Kugel 8 durch das Magnetfeld des Teils in den Ventilsitz 7 gezogen wird. Durch den Druck des durchfließenden Mediums wird die Kugel in eine Öffnungsstellung bewegt, wobei der Öffnungsdruck durch die Stärke des Magnetfelds bestimmt ist. Dieses muß jedoch so stark sein, daß die Kugel aus jeder Lage im Gehäuse wieder in den Ventilsitz gezogen wird, sobald der Druck des Mediums unter einen bestimmten Mindestwert gefallen ist.On the inlet side, a sealing part 5 is arranged in the housing 1, which has a bore 6 extending the inlet 2. The bore runs towards the inside of the housing into a valve seat 7 for a closing body designed as a ball 8. The part 5 consists of magnetic material, for example a flexible magnetic body, so that the freely movable ball 8 made of ferromagnetic material is drawn into the valve seat 7 by the magnetic field of the part. The pressure of the medium flowing through moves the ball into an opening position, whereby the opening pressure is determined by the strength of the magnetic field. However, this must be strong enough that the ball is drawn back into the valve seat from any position in the housing as soon as the pressure of the medium has fallen below a certain minimum value.
Um die Auslaßöffnung 3 an der Innenwand des Gehäusedeckels 4 sind Abstandselemente 9 angebracht, die verhindern, daß die Kugel 8 unter dem Mediumfluß in die Öffnung gedrückt wird und diese dabei verschließt. Zwischen oder in den Abstandselementen sind Durch- l lasse 10 für den Mediumfluß vorgesehen.Spacer elements 9 are mounted around the outlet opening 3 on the inner wall of the housing cover 4, which prevent the ball 8 from being pressed into the opening by the medium flow and thereby closing it. Passages 10 for the medium flow are provided between or in the spacer elements.
Claims (3)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9314210U DE9314210U1 (en) | 1993-09-21 | 1993-09-21 | check valve |
| CH02678/94A CH690387A5 (en) | 1993-09-21 | 1994-09-01 | Cleaning cartridge. |
| FR9410846A FR2710442B3 (en) | 1993-09-21 | 1994-09-12 | Cleaning cassette. |
| JP6220247A JPH07169029A (en) | 1993-09-21 | 1994-09-14 | Cassette for cleaning of magnetic head |
| US08/309,440 US5515223A (en) | 1993-09-21 | 1994-09-20 | Cleaning cassette for magnetic heads |
| GB9419064A GB2282002B (en) | 1993-09-21 | 1994-09-20 | Cleaning cassette |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9314210U DE9314210U1 (en) | 1993-09-21 | 1993-09-21 | check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9314210U1 true DE9314210U1 (en) | 1993-12-09 |
Family
ID=6898321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9314210U Expired - Lifetime DE9314210U1 (en) | 1993-09-21 | 1993-09-21 | check valve |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE9314210U1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1183984A2 (en) * | 2000-08-31 | 2002-03-06 | AEG Hausgeräte GmbH | Valve for a dishwasher with a movable closure device |
| EP1096188A3 (en) * | 1999-10-29 | 2002-09-25 | The BOC Group plc | Relief valve |
| DE19615031C2 (en) * | 1995-04-28 | 2003-10-09 | Tsubakimoto Chain Co | Method and arrangement for generating an error signal characterizing a short circuit |
| DE10249936A1 (en) * | 2002-10-24 | 2004-05-13 | Abb Research Ltd. | Valve design for micro systems has ferromagnetic balls held onto valve seats or held away from the valve seats using permanent magnet sliders |
| DE10249938A1 (en) * | 2002-10-24 | 2004-05-13 | Abb Research Ltd. | Micro system valve has a ferromagnetic valve element moved by permanent magnets on a slider mounting |
-
1993
- 1993-09-21 DE DE9314210U patent/DE9314210U1/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19615031C2 (en) * | 1995-04-28 | 2003-10-09 | Tsubakimoto Chain Co | Method and arrangement for generating an error signal characterizing a short circuit |
| EP1096188A3 (en) * | 1999-10-29 | 2002-09-25 | The BOC Group plc | Relief valve |
| US6935364B1 (en) | 1999-10-29 | 2005-08-30 | The Boc Group Plc | Magnetically-operated relief valves |
| EP1183984A2 (en) * | 2000-08-31 | 2002-03-06 | AEG Hausgeräte GmbH | Valve for a dishwasher with a movable closure device |
| EP1183984A3 (en) * | 2000-08-31 | 2002-10-30 | AEG Hausgeräte GmbH | Valve for a dishwasher with a movable closure device |
| DE10249936A1 (en) * | 2002-10-24 | 2004-05-13 | Abb Research Ltd. | Valve design for micro systems has ferromagnetic balls held onto valve seats or held away from the valve seats using permanent magnet sliders |
| DE10249938A1 (en) * | 2002-10-24 | 2004-05-13 | Abb Research Ltd. | Micro system valve has a ferromagnetic valve element moved by permanent magnets on a slider mounting |
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