DE1923954A1 - Dirt scraper ring for inner cylinder surfaces - Google Patents
Dirt scraper ring for inner cylinder surfacesInfo
- Publication number
- DE1923954A1 DE1923954A1 DE19691923954 DE1923954A DE1923954A1 DE 1923954 A1 DE1923954 A1 DE 1923954A1 DE 19691923954 DE19691923954 DE 19691923954 DE 1923954 A DE1923954 A DE 1923954A DE 1923954 A1 DE1923954 A1 DE 1923954A1
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- ring
- scraper ring
- inner cylinder
- piston
- 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
- F16J15/56—Other sealings for reciprocating rods
-
- 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
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
Description
Bezeichnung: Schmutzabstreifring für Zylinderinnenflächen.Designation: Dirt wiper ring for inner cylinder surfaces.
Gegenstand der Erfindung ist ein Schmutzabstreifring ttir lylin.The invention relates to a dirt scraper ring ttir lylin.
derinnenflächen, getragen von dem Kolben eines hydraulischen Kolbenspe#chers oder eines hydr. Arbeitszylinders.the inner surfaces, carried by the piston of a hydraulic piston accumulator or a hydr. Working cylinder.
Es ist bekannt, mehrere Dichtungsring. aui den Kolben eines hydr. Speichers oder eines hydr. Arbeitszylinders anzuordnen, von denen einer oder eine Gruppe von Ringen als eigentliche Dichtung dient, während die übrigen als Führungsringe fungieren.It is known to have several sealing rings. aui the piston of a hydr. Storage tank or a hydr. To arrange the working cylinder, one of which or one Group of rings serves as the actual seal, while the rest as guide rings act.
Sofern einer der letztgenannten im Flüssigkeitsraum eines hydr.If one of the latter is in the fluid space of a hydr.
Speichers vor dem Dichtungsring angeordnet ist, wird er auch als Abstreifring im gewissen Iaße wirksam seine Da er aber infolge seiner Aufgabe primär als Führungsring ausgebildet ist, entspricht er nicht den Anforderungen, die im allgemeinen an einen Schmutzabstreifring gestellt werden.The memory is arranged in front of the sealing ring, it is also called a scraper ring In a certain sense it is effective as a result of its task primarily as a guide ring is formed, it does not meet the requirements that are generally placed on a Dirt scraper ring.
Es ist auch schon bekannt, echte Schmutzabstreifringe alseitig vor den Dichtungsringen anzuordnen, wie sie bei hydr. Arbeitszylindern als Kolbenstangen - Abstreifringe bekannt sind, aber mit zur Zylinderwand gekehrten Abstreiflippen. Diese Abstreifringe haben Jedoch die Eingenschaft, daß sie bei feingehohnten Zylindernflächen den Flüssigkeitsfilm mitabstreifen, so daß die nachfolgenden Dichtungsringe ohne ausreichende Benetzung gleiten und infolge Abrieb# vorzeitig schadhaft werden.It is also already known to use real dirt scraper rings as a side to arrange the sealing rings, as they are with hydr. Working cylinders as piston rods - Wiper rings are known, but with wiper lips facing the cylinder wall. However, these wiper rings have the property that they can be used with finely honed cylinder surfaces strip off the liquid film, so that the following sealing rings without Adequate wetting glide and become damaged prematurely as a result of abrasion #.
Sie haben weiterhin -den Nachteil, daB sie vom Druck der Bydraulinkflüssigkeit beaufschlagt durch pumpenwirkung die Funktion der Dichtungsringe stören.They also have the disadvantage that they are affected by the pressure of the hydraulic fluid when exposed to the action of the pump, the function of the sealing rings can be disrupted.
Die vorliegende Erfindung hat zur Aufgabe, einen Schmutz.The present invention has for its object a dirt.
abstreifring für Zylinderinnenflächen zu schaffen, der eine ausreichende Benetzung der Dichtungsringe gestattet und andererseits auch deren funktionelle Wirkung nicht beeinträchtigt. Erreicht wird diese Ziel erfindungsgemäß dadurch, daß zwischen der Zylinderwand und dem Abstreiftragring ein ringförmiger Zwischenraum vorgesehen ist, der durch einige am Umfange gleichmäßig verteilte Durchgangslöcher mit dem Flüssigkeitsraum des Zylinders in Verbindung steht und der Flüssigkeit freien Zugang zu den hinter dem Abstreifring liegenden Dichtungsringen gewährt.to create a scraper ring for cylinder inner surfaces that has a sufficient Wetting of the sealing rings is permitted and, on the other hand, their functional Effect not impaired. This goal is achieved according to the invention by that between the cylinder wall and the wiper support ring an annular space is provided by some through holes evenly distributed around the circumference is in communication with the liquid space of the cylinder and the liquid free Granted access to the sealing rings behind the wiper ring.
Die bildliche Darstellung zeigt einen Schutzabstreifring gemäß der Erfindung.The illustration shows a protective wiper ring according to FIG Invention.
Es bezeichnets B den Innendurchmesser deo Zylinders, d den Außendurchmesser des Abstreifragringes, a den rings förmigen Zwischenraum und b die Durchgangslöcher im Abstreif ring.It denotes B the inside diameter of the cylinder, d the outside diameter of the Abstreifragringes, a the ring-shaped space and b the through holes in the scraper ring.
Durch die Durchgangslöcher b und den ringförmigen Zwischenraum a kann so die Flüssigkeit wie auch der hydr. Druck ru den Dichtungsringen des Kolbens gelangen. Irit ist eine sonst mögliche Pumpenwirkung ausgeschaltet und eine ausreichende Benetzung der Dichtungsringe gesichert*Through the through holes b and the annular space a can so the liquid as well as the hydr. Pressure ru reach the sealing rings of the piston. Irit, an otherwise possible pump effect is eliminated and sufficient wetting is achieved the sealing rings secured *
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691923954 DE1923954A1 (en) | 1969-05-10 | 1969-05-10 | Dirt scraper ring for inner cylinder surfaces |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691923954 DE1923954A1 (en) | 1969-05-10 | 1969-05-10 | Dirt scraper ring for inner cylinder surfaces |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1923954A1 true DE1923954A1 (en) | 1970-11-19 |
Family
ID=5733848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19691923954 Pending DE1923954A1 (en) | 1969-05-10 | 1969-05-10 | Dirt scraper ring for inner cylinder surfaces |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1923954A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2439342A1 (en) * | 1978-10-21 | 1980-05-16 | Orenstein & Koppel Ag | SEALING DEVICE FOR MEMBERS OF A MACHINE WITH BACK-AND-MOTION |
FR2524101A1 (en) * | 1982-03-24 | 1983-09-30 | Orenstein & Koppel Ag | PROTECTIVE RING WITH PASSENGER OPENINGS FOR HYDRAULIC JOINT DEVICE |
EP0162474A2 (en) * | 1984-05-25 | 1985-11-27 | Fujitsu Limited | A printed circuit board and a circuit assembly for a radio apparatus |
US4690160A (en) * | 1984-01-28 | 1987-09-01 | Firma Carl Still Gmbh & Co. Kg | Hydraulically operated high-pressure piston pump |
US4861044A (en) * | 1988-11-09 | 1989-08-29 | Scherping Systems, Inc. | Hygenienic shaft seal for a food processing vat |
DE4040218A1 (en) * | 1990-12-15 | 1992-06-17 | Bosch Gmbh Robert | Electronic component and circuit screening appts. - provides sealed screening around circuit board connector using screening plate attached to slot in connector |
DE4115153A1 (en) * | 1991-05-08 | 1992-11-12 | Lo Kun Nan | ASSEMBLED PCB WITH AN ALUMINUM SHIELDING HOUSING |
-
1969
- 1969-05-10 DE DE19691923954 patent/DE1923954A1/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2439342A1 (en) * | 1978-10-21 | 1980-05-16 | Orenstein & Koppel Ag | SEALING DEVICE FOR MEMBERS OF A MACHINE WITH BACK-AND-MOTION |
FR2524101A1 (en) * | 1982-03-24 | 1983-09-30 | Orenstein & Koppel Ag | PROTECTIVE RING WITH PASSENGER OPENINGS FOR HYDRAULIC JOINT DEVICE |
DE3210811A1 (en) * | 1982-03-24 | 1983-10-20 | O & K Orenstein & Koppel Ag, 1000 Berlin | PROTECTIVE RING WITH THROUGHOUTS FOR A HYDRAULIC SEALING SYSTEM |
US4690160A (en) * | 1984-01-28 | 1987-09-01 | Firma Carl Still Gmbh & Co. Kg | Hydraulically operated high-pressure piston pump |
EP0162474A2 (en) * | 1984-05-25 | 1985-11-27 | Fujitsu Limited | A printed circuit board and a circuit assembly for a radio apparatus |
EP0162474A3 (en) * | 1984-05-25 | 1987-06-03 | Fujitsu Limited | A printed circuit board and a circuit assembly for a rada printed circuit board and a circuit assembly for a radio apparatus io apparatus |
US4861044A (en) * | 1988-11-09 | 1989-08-29 | Scherping Systems, Inc. | Hygenienic shaft seal for a food processing vat |
DE4040218A1 (en) * | 1990-12-15 | 1992-06-17 | Bosch Gmbh Robert | Electronic component and circuit screening appts. - provides sealed screening around circuit board connector using screening plate attached to slot in connector |
DE4115153A1 (en) * | 1991-05-08 | 1992-11-12 | Lo Kun Nan | ASSEMBLED PCB WITH AN ALUMINUM SHIELDING HOUSING |
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