DE1915150A1 - Fluid seal - Google Patents
Fluid sealInfo
- Publication number
- DE1915150A1 DE1915150A1 DE19691915150 DE1915150A DE1915150A1 DE 1915150 A1 DE1915150 A1 DE 1915150A1 DE 19691915150 DE19691915150 DE 19691915150 DE 1915150 A DE1915150 A DE 1915150A DE 1915150 A1 DE1915150 A1 DE 1915150A1
- Authority
- DE
- Germany
- Prior art keywords
- chamber
- oil
- packing member
- packing
- vacuum chamber
- 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
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/40—Sealings between relatively-moving surfaces by means of fluid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Of Bearings (AREA)
Description
DR.-ING. H. FlNCKSDR.-ING. H. FlNCKS
DIPL.-ING.H.BOHR « .DIPL.-ING.H.BOHR «.
zum Patentgesuchto the patent application
dtr Firma RIGAKTJ DEHKI COMPANY LIMITSD, Tokio/Japandtr company RIGAKTJ DEHKI COMPANY LIMITSD, Tokyo / Japan
betreffendconcerning
FLUIBDICHTUHGFLUIBDICHTUHG
#»*
PRIORITÄT: 25. März 1968 - JAPAH# »*
PRIORITY: Mar 25, 1968 - JAPAH
Die Erfindung betrifft eine yiuiddiobtung für eine mit hoher Drehzahl rotierende,, durch eine Wandung einer Vakuumkammer verlaufende Welle.The invention relates to a yiuiddiobtung for one with high speed rotating ,, through a wall of a Vacuum chamber extending shaft.
O-Ringe oder dynamische Dichtungen werden allgemein verwendet, um Lecketeilen für Luft längs der Welle zu der Yakuuokamaer zu vermeiden, was jedoch sehr schwierig iat. Pur dynamische Dichtungen werden Natürgummi und Synthetlkguomi alö Packungesaterial verwendet. Ic solchen Dichtungen ist kein Schmiermittel vorgesehen, was au dea Nachteil einer starken gleitenden Reibung swischen der Packung und der rotierenden Welle führt.O-rings or dynamic seals are commonly used to lick parts for air along the shaft to the Yakuuokamaer to avoid, but this is very difficult. Pure dynamic seals are made of natural rubber and synthetlkguomi alö packing material used. Ic such seals is no lubricant provided, which also has the disadvantage of strong sliding friction between the packing and the rotating one Wave leads.
Se Bind Dichtungen bekannt, bei denen Schnieraittel ursprünglich in das Lager eingebracht und über die geaaste Lageratandzeit dort gehalten wird, während gleichzeitig der Eintritt von Luft in die Vakuumkammer durch die Dichtungen verhindert wird. Bei solchen Anordnungen wird allgemein Fett als Schmiermittel verwendet. Be ergab sich, dass bei Verwendung vofi Fett als Schmiermittel für solche Dichtungen beiSe bind seals are known in which Schnieraittel originally brought into the camp and over the geaaste storage time is held there while at the same time preventing air from entering the vacuum chamber through the seals will. Such arrangements generally become fat used as a lubricant. It was found that when using grease as a lubricant for such seals
S09843/1 181S09843 / 1 181
BAD ORJGtNAL BAD ORJGtNAL
Drehung der Welle mit hoher Drehzahl Lufträume oder Spiel in dem Fett hervorgerufen werden, und dieee Zwischenr&uee ermöglichen den Eintritt von Luft in die Vakuumkammer.Rotation of the shaft at high speed. Air spaces or play in which fat is produced, and the intermediate space allow air to enter the vacuum chamber.
Hauptzweck der vorliegenden Erfindung ist die Schaffung einer verbesserten Dichtung zur Vermeidung der erwähnten Nachteile. Erreicht wird dies bei einer Dichtung für eine oit hoher Drehzahl rotierende, durch die Wandung einer Vakuumkammer verlaufende Welle durch ein erstes und zweites Packungeglied, welche zwischen sich eine erste Kammer bilden, die mit Öl von niedriger Viskosität unter Atmosphärendruck gefüllt ist, und ein drittes Packungaglied, welches sswischen dem zweiten*und dem dritten Packungeglied eine zweite Kammer bildet, welche an die Vakuumkammer angeschlossen ist.The main purpose of the present invention is to provide a improved seal to avoid the disadvantages mentioned. This is achieved with a seal for an oit higher Rotating speed shaft running through the wall of a vacuum chamber through a first and second packing member, which between them form a first chamber filled with oil of low viscosity under atmospheric pressure is, and a third package member, which sswischen the second * and the third packing member forms a second chamber which is connected to the vacuum chamber.
Die Erfindung ist nachstehend anhand der Zeichnung näher erläutert, welche ein Ausführungsbeispiel einer erfindungageoäasen Dichtung im Axialschnitt zeigt.The invention is explained in more detail below with reference to the drawing, which shows an exemplary embodiment of a invention Shows seal in axial section.
Eine Vakuumkammer 1 kann an eine geeignete (nicht gezeigte) Vakuumpumpe angeschlossen sein. Ein Körper 2 ist auf einer Welle 3 in der Kammer angebracht. Die Welle 3 verläuft durch eine Kammerwandung und kann durch geeignete Mittel gedreht werden, beispielsweise durch ein Riemenrad 4 nebst einer Kraftübertragungseinrichtung.A vacuum chamber 1 can be connected to a suitable vacuum pump (not shown). A body 2 is on top of one Shaft 3 mounted in the chamber. The shaft 3 extends through a chamber wall and can be rotated by suitable means are, for example, by a belt wheel 4 together with a power transmission device.
Die Welle 3 ist durch Lager 5, 6 gelagert» die mit der erfindungsgeasässen Dichtung vereinigt sind. «The shaft 3 is supported by bearings 5, 6 »those with the invention Seal are united. «
Die erfindungsgemässe Dichtung umfasst drei ringförmige Pakkungaglieder 7, 8, 9, welche in einem Gehäuse eingeschlossen und voneinander getrennt sind, so dass zwei Kammern zwischen den Packungen 7, 8 bzw. Θ, 9 gebildet werden. Es kann unterschiedliches Material als Packungsmaterial verwendet werden, wobei Naturgummi oder Gynthetikgummi vorzuziehen sind. Eine ümfangsfeder 10 presst die Lippe eins Packungsgliedes jeweils gegen die Welle 3.The seal according to the invention comprises three annular package members 7, 8, 9, which are enclosed in a housing and separated from one another so that two chambers between the packs 7, 8 or Θ, 9 are formed. Different materials can be used as packing material, natural rubber or synthetic rubber are preferable. One Umfangsfeder 10 presses the lip of one packing member at a time against the shaft 3.
909843/11S*909843 / 11S *
Die Kammer zwischen den Packungsgliedern 7» 8 ist Über eine Leitung 12 an einen ölvorratsbehälter 11 angeschlossen, welcher oben zur Atmosphäre hin offen ist." In dem Behälter 11 befindet sich Öl 13 niedriger Viskosität, beispielsweise von 157 Centistokes bei 50° C. Die Kammer zwischen den Packungsgliedern 8, 9 steh 5 mit der Vakuumkammer 1 über einen Kanal 14 in Verbindung und ist auch an einen ölsumpf 17 angeschloesen, welcher abnehmbar an einem Durchtritt 15 angebracht ist. Auf diese Weise ist der Raum zwischen den Packungsgliedern 7, 8 mit dem niedrigviskosen öl gefüllt, wogegen der Saum zwischen den Packungsgiiedern 8, 9 unter Vakuum steht, so dass es möglich ist, das öl 13 nach Ansammlung in dem Sumpf 17 durch dessen Entfernung von der Öffnung 15 abzulassen.The chamber between the packing members 7 »8 is about a Line 12 is connected to an oil storage container 11, which is open to the atmosphere at the top. "In the container 11 there is oil 13 of low viscosity, for example of 157 centistokes at 50 ° C. The chamber between the packing members 8, 9 stands 5 with the vacuum chamber 1 via a channel 14 in connection and is also connected to an oil sump 17, which is detachably attached to a passage 15. This is how there is space between the packing members 7, 8 filled with the low-viscosity oil, whereas the seam between the packing members 8, 9 is under vacuum, see above that it is possible to remove the oil 13 after accumulation in the sump 17 by removing it from the opening 15.
Das in den Raum zwischen den Packungsgliedern 7, 8 eingefüllte niedrigviskose Öl steht mit der Atmosphäre in Verbindung. Eine hohe Drehzahl der Welle bewirkt keine Luftzwischenräume zwischen dem öl und der Welle 3. Dies bedeutet, dass die Welle völlig von dem niedrigviekosen öl umgeben ist.The low-viscosity oil filled into the space between the packing members 7, 8 is in contact with the atmosphere. A high speed of the shaft does not create any air gaps between the oil and the shaft 3. This means that the shaft is completely surrounded by the low-viscosity oil.
Selbst wenn Luft in das öl innerhalb des Raumes zwischen den Packungsgliedern 7, 8 infolge der niedrigen Viskosität des Öls eindringen sollte, steigen in dem Öl gebildete Luftblasen leicht nach oben auf und werden aus dem oberen Teil des Behälters 11 an die Atmosphäre abgegeben. Da beide Seiten des Packungegliedes 7 dem Atmoephärendruck ausgesetzt sind, selbst wenn der Druck des Packungsgliedes 7 niedrig genug ist, um dessen Gleitfläche zu schmieren, besteht keine Möglichkeit einer Leckbildung seitens des niedrigviskosen Ölo zu der Auseenseite. Wenn der Druck dee Packungsgiiedee 8 auch niedrig genug ist, um das öl der Gleitfläche zuzuführen, wird das in den unter Vakuum stehenden Raum quer zu der Gleitfläche eingezogene Lecköl durch den Durchtritt 15 in dem Ölsumpf 17 gesammelt.Even if air should penetrate into the oil within the space between the packing members 7, 8 due to the low viscosity of the oil, air bubbles formed in the oil easily rise up and are released from the upper part of the container 11 to the atmosphere. Since both sides of the packing member 7 are exposed to atmospheric pressure, even if the pressure of the packing member 7 is low enough to lubricate its sliding surface, there is no possibility of the low viscosity oil leaking to the outside. If the pressure of the packing material 8 is also low enough to supply the oil to the sliding surface, the leakage oil drawn into the space under vacuum across the sliding surface is collected through the passage 15 in the oil sump 17.
909843/118*909843/118 *
BAD ORIGINALBATH ORIGINAL
Da beide Seiten des. Packungsgliedes 9 dem Vakuum ausgesetzt aind , kann verhindert werden, dass das öl 19 in dem Raum zwischen den Packungsgliedern 8; 9 in die Vakuumkammer 1 mit dem reduzierten Berührungsdruck des Packungsgliedes 9 eintritt. Since both sides of the packing member 9 are exposed to the vacuum , the oil 19 in the space between the packing members 8 ; 9 enters the vacuum chamber 1 with the reduced contact pressure of the packing member 9.
3/11613/1161
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1895168 | 1968-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1915150A1 true DE1915150A1 (en) | 1969-10-23 |
Family
ID=11985939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691915150 Pending DE1915150A1 (en) | 1968-03-25 | 1969-03-25 | Fluid seal |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1915150A1 (en) |
| GB (1) | GB1263805A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3125642A1 (en) * | 1981-06-30 | 1983-01-13 | Hochtemperatur-Reaktorbau GmbH, 5000 Köln | Sealing device |
| DE4105746A1 (en) * | 1990-02-26 | 1991-08-29 | Zahnradfabrik Friedrichshafen | Seal unit with wiper - has corrugated sealing ring in sleeve, and has two spring-loaded sealing lips, with annular space between filled with lubricant |
| DE4125498A1 (en) * | 1991-08-01 | 1993-02-04 | Leybold Ag | Shaft seal for through passage in vacuum plants - has sealing part forming ring gap containing locking fluid |
| DE102013000143A1 (en) * | 2013-01-05 | 2014-07-10 | Volkswagen Aktiengesellschaft | Sealing system for sealing clean area from dirt area in internal combustion engine of motor vehicle, has opening formed in separating wall, and lubrication chamber limited by sealing element, where inner area of chamber contains lubricant |
| DE102013000126A1 (en) * | 2013-01-04 | 2014-07-10 | Volkswagen Aktiengesellschaft | System for sealing clean space from dirt environment in combustion engine of motor car, has sealing element arranged at wheel body surface or partition wall surface such that lubrication chamber is partially limited by sealing element |
| DE102013109882A1 (en) * | 2013-09-10 | 2015-03-12 | Von Ardenne Gmbh | Sealing structure for sealing a process space, process space with such a sealing structure and method for sealing a process space using the sealing structure |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2140102A (en) * | 1983-05-06 | 1984-11-21 | Boc Group Plc | Improvements in shaft seals |
| CN101761635B (en) * | 2009-12-23 | 2012-09-05 | 东莞宏威数码机械有限公司 | Vacuum transmission device |
-
1969
- 1969-03-21 GB GB04982/69A patent/GB1263805A/en not_active Expired
- 1969-03-25 DE DE19691915150 patent/DE1915150A1/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3125642A1 (en) * | 1981-06-30 | 1983-01-13 | Hochtemperatur-Reaktorbau GmbH, 5000 Köln | Sealing device |
| DE4105746A1 (en) * | 1990-02-26 | 1991-08-29 | Zahnradfabrik Friedrichshafen | Seal unit with wiper - has corrugated sealing ring in sleeve, and has two spring-loaded sealing lips, with annular space between filled with lubricant |
| DE4125498A1 (en) * | 1991-08-01 | 1993-02-04 | Leybold Ag | Shaft seal for through passage in vacuum plants - has sealing part forming ring gap containing locking fluid |
| US5348313A (en) * | 1991-08-01 | 1994-09-20 | Leybold Ag | Radial shaft sealing ring |
| DE102013000126A1 (en) * | 2013-01-04 | 2014-07-10 | Volkswagen Aktiengesellschaft | System for sealing clean space from dirt environment in combustion engine of motor car, has sealing element arranged at wheel body surface or partition wall surface such that lubrication chamber is partially limited by sealing element |
| DE102013000143A1 (en) * | 2013-01-05 | 2014-07-10 | Volkswagen Aktiengesellschaft | Sealing system for sealing clean area from dirt area in internal combustion engine of motor vehicle, has opening formed in separating wall, and lubrication chamber limited by sealing element, where inner area of chamber contains lubricant |
| DE102013109882A1 (en) * | 2013-09-10 | 2015-03-12 | Von Ardenne Gmbh | Sealing structure for sealing a process space, process space with such a sealing structure and method for sealing a process space using the sealing structure |
| DE102013109882B4 (en) | 2013-09-10 | 2020-07-16 | VON ARDENNE Asset GmbH & Co. KG | Sealing structure for sealing a vacuum process room, vacuum process room with such a sealing structure and method for sealing a vacuum process room using the sealing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1263805A (en) | 1972-02-16 |
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