DE1926000A1 - Sealing separating piston - Google Patents
Sealing separating pistonInfo
- Publication number
- DE1926000A1 DE1926000A1 DE19691926000 DE1926000A DE1926000A1 DE 1926000 A1 DE1926000 A1 DE 1926000A1 DE 19691926000 DE19691926000 DE 19691926000 DE 1926000 A DE1926000 A DE 1926000A DE 1926000 A1 DE1926000 A1 DE 1926000A1
- Authority
- DE
- Germany
- Prior art keywords
- sealing
- separating piston
- membrane
- closing element
- piston 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
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
-
- 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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/066—Units characterised by the partition, baffle or like element
- F16F9/067—Partitions of the piston type, e.g. sliding pistons
-
- 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
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
- F16J1/006—Pistons; Trunk pistons; Plungers obtained by assembling several pieces of different materials
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
- F16L55/05—Buffers therefor
- F16L55/052—Pneumatic reservoirs
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Diaphragms And Bellows (AREA)
Description
Be schreibung Abdichtender Trennkolben.Description of the sealing piston.
Die Erfindung bezieht sich auf einen abdiohtenden Trennkolben und betrifft insbesondere einen in druckbeaufschlagten Stoßdämpfern verwendeten Trennkolben, der eine Gasmenge von einer Flussigkeitsmenge in einem Zylindes eines Stoßdämpfern trennt. The invention relates to a detaching separating flask and relates in particular to a separating piston used in pressurized shock absorbers, of an amount of gas from an amount of liquid in a cylinder of a shock absorber separates.
Derartige Trennkolben sind normalerweise in geschlossener, zylindrisoher, starrer Bauweise hergestellt und mit Außenringnuten versehen, in denen Dichtringe, gewöhnlich mit ringförmigem Quersohnitt (oder 0-Singe), aufgenommen sind. Eine Schwierigkeit, die sich bei Verwendung derartiger Trenakolben einstellt, besteht darin, daß der 0-Hing den Schwingungen des Kolbens mit hoher Frequenz und kleiner Amplitude nicht standhält, und das es zu einer Emulgierubg kommen kann. Such separating pistons are normally in a closed, cylindrical, made of rigid construction and provided with outer ring grooves in which sealing rings, usually with ring-shaped cross-sons (or 0-sings). A problem, which occurs when using such Trenacob, is that the 0-hung the oscillations of the piston with high frequency and small amplitude not withstands, and that emulsification can occur.
Ein bekannter Vorschlag, der diese Schwierigkeit beseitigen sollte, sah vor die axiale Abmessung der Nut zu vergrößern, so daß der Ring unter diesen Sohwingungen mit hoher Frequenz Rollbewegungen ausführen konnte. Es hat sich jedoch gezeigt, daß dieses Abwälzen des Ringes an verschiedenen Punkten um den 0-Ring herum uiigleichmäßig erfolgt und daß eine Torsionspannung erzeugt wird, die zum Bruch des Ringes führt. Es ist auch vorgeschlagen worden, eine befestigte, elastische membran als Drennkolben yorzusehen; aber die Lebensdauer einer solchen Membran ist ungewiß angesiohts des großen Oberflächenbereiche der Menibran, der Temperaturen, denen sie im Gebrauch ausgesetzt ist, sowie angesichts der vielen Biegebewegungen, die sie ausführen muß. A well-known suggestion that should overcome this difficulty is saw in front of the axial dimension of the groove to enlarge so that the ring under them Such vibrations could roll movements with high frequency. It has, however shown that this rolling of the ring at various points around the O-ring takes place unevenly and that a torsional stress is generated that leads to breakage of the ring leads. It has also been suggested a fortified, elastic membrane to be seen as a piston; but the lifespan of such The membrane is uncertainly due to the large surface area of the Menibran, the Temperatures to which it is exposed in use, as well as in the face of many Bending movements that she has to perform.
Gemäß der Erfindung wird ein abdichtender Trennkolben geschaffen, durch dessen Aufbau die oben erwaiinten Schwierigkeiten umgangen sind. In groben Zügen besteht die Erfindung in einem im wesentlichen starren, ringförmigen Körper, um dessen äußeren Umfang sich ein Dicht ring erstreckt und dessen innerer erschnitt von einem flexiblen Schließelement abgeschlossen ist. Das flexible Schließelement kann z.B. die Form einer Membran oder eines Balges aufweisen. According to the invention, a sealing separating piston is created, its structure circumvents the difficulties mentioned above. In rough Trains the invention consists in a substantially rigid, annular body, around the outer periphery of a sealing ring extends and cut its inner is completed by a flexible closing element. The flexible closing element may, for example, be in the form of a membrane or a bellows.
Die Erfindung erstreckt sich auch auf einen mit einem Druckmittel arbeitenden StoßdEmpfer, in dem ein solcher Trennkolben vorgesehen ist. The invention also extends to one with a pressure medium working shock absorber in which such a separating piston is provided.
Die Erfindung und vorteilhafte Einzelheiten der Erfindung werden im folgenden anhand von schematischen Zeichnungen zweier Ausführungsbeispiele näher erläutert. The invention and advantageous details of the invention will become in the following with reference to schematic drawings of two embodiments explained.
Fig. 1 und 2 zeigen Axialsohnitte durch zwei Ausführungebeispiele eines abdichtenden Trennkclbens gemäß der Erfindung. 1 and 2 show the axial center through two exemplary embodiments a sealing separator according to the invention.
Die in den Zeichnungen dargestellten Trennkolben sind in erster Linie zur Verwendung als rrrennkclben in mit Druckmitteln arbeitenden Stoßdämpfern gedacht. Jeder hat einen im wesentlichen starren, ringförmigen Körper 1, der mit einer Außenringnut zur Aufnahme eines O-Ringes 2 aus Gummi oder einem anderen elastomeren Werkstoff ausgebildet ist und dessen innerer querschnitt von einer flexiblen Membran 3 aus Gummi, kunststoff oder Metall abgeschlossen gehalten ist.The floating pistons shown in the drawings are primarily intended for use as a racing piston in shock absorbers that work with pressure media. Each has a substantially rigid, annular body 1, which is provided with an outer annular groove for receiving an O-ring 2 made of rubber or another elastomeric material is formed and the inner cross section of a flexible membrane 3 from Rubber, plastic or metal is kept closed.
Bei dem in i?ig. 1 gezeigten Ausführungsbeispiel hat die Membran einen verdickten Wulst 4, der direkt in einer ringfdrmigen Ausnehmung im Körper 1 aufgenommen ist, während die Membran beim Aus:thrungsbeispiel gemäß Fig. 2 zwischen zwei mit öffnungen 7 ausvebildeten Halteplatten 6 angeordnet ist, die die Biegebewegungen der Iielllbran in zwei einander entgegengesetzten Richtungen begrenzen. Bei diesem Ausführungsbeispiel ist der Wulst 4 direkt in einem zwischen den Platten 6 ausgebildeten Ringraum aufgenommen. In the i? Ig. 1 has the membrane a thickened bead 4 which sits directly in an annular recess in the body 1 is added, while the membrane in Aus: thrungsbeispiel according to FIG. 2 between two retaining plates 6 formed with openings 7 are arranged, which hold the bending movements limit the Iielllbran in two opposite directions. With this one The embodiment is the bead 4 directly in one formed between the plates 6 Annular space added.
In der praktischen Anwendung werden die Schwingungen von hoher Frequenz und kleiner Amplitude durch die Bewegung der Membran ohne eine Gleitbewegung des Dichtelements 2 aufgenommen, dessen Abnutzung durch Gleitbewegungen folglich sehr stark herabgesetzt ist. In practical use, the vibrations are of high frequency and small amplitude due to the movement of the diaphragm without sliding movement of the Sealing element 2 added, its wear by sliding movements consequently very much is greatly reduced.
Die Membran könnte natürlich auch durch andere AusfUhrungaformen flexibler Schließelemente ersetzt sein, beispielsweise durch einen Balg. Es liegt auf der Hand, daß ein Trennkolben der oben beschriebenen Bauart nicht nur in druckbeaufschlagten Stoßdämpfern, sondern auch anderweitig zweckmäßige Verwendung finden kann. The membrane could of course also have other designs be replaced by flexible closing elements, for example by a bellows. It lies It is obvious that a separating piston of the type described above is not only pressurized Shock absorbers, but can also be used for other purposes.
Patentansprüche Claims
Claims (6)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2421468 | 1968-05-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1926000A1 true DE1926000A1 (en) | 1969-11-27 |
Family
ID=10208187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19691926000 Pending DE1926000A1 (en) | 1968-05-21 | 1969-05-21 | Sealing separating piston |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1926000A1 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2306377A1 (en) * | 1975-03-29 | 1976-10-29 | Freudenberg Carl | SEPARATOR PISTON, ESPECIALLY FOR MOTOR VEHICLE SHOCK ABSORBERS |
JPS535376A (en) * | 1976-06-30 | 1978-01-18 | Peugeot | Damping device |
DE2856036A1 (en) * | 1978-12-23 | 1980-06-26 | Klein Schanzlin & Becker Ag | LEAK DETECTOR FOR SEALED ROOMS |
DE3030234A1 (en) * | 1980-08-09 | 1982-03-11 | Reinhold Ing.(grad.) 6990 Bad Mergentheim Barlian | Steam detector esp. for nuclear plant leak - has capacitor affected by presence of steam to actuate detector circuit |
DE3417332A1 (en) * | 1984-05-10 | 1985-11-21 | Herbert Dipl.-Ing. 4630 Bochum Koberling | Device for detecting leaks, in particular in pipelines and containers |
US4838763A (en) * | 1986-11-20 | 1989-06-13 | Heyko Reinecker | Canned motor pump |
WO1998000653A2 (en) * | 1996-07-02 | 1998-01-08 | Lord Corporation | Controllable vibration apparatus |
DE19814214A1 (en) * | 1998-03-31 | 1999-10-07 | Flender A F & Co | Machine element with hydraulic filling, especially bearing or shaft |
DE102008060515B4 (en) * | 2007-12-05 | 2015-08-06 | Mando Corporation | vibration |
EP4006376A1 (en) * | 2020-11-25 | 2022-06-01 | BeijingWest Industries Co. Ltd. | A gas cup for a damper assembly and a damper assembly |
WO2023102521A1 (en) * | 2021-12-03 | 2023-06-08 | DRiV Automotive Inc. | Vehicle suspension damper including floating piston |
-
1969
- 1969-05-21 DE DE19691926000 patent/DE1926000A1/en active Pending
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2306377A1 (en) * | 1975-03-29 | 1976-10-29 | Freudenberg Carl | SEPARATOR PISTON, ESPECIALLY FOR MOTOR VEHICLE SHOCK ABSORBERS |
JPS535376A (en) * | 1976-06-30 | 1978-01-18 | Peugeot | Damping device |
JPS6053213B2 (en) * | 1976-06-30 | 1985-11-25 | オ−トモビル・プジヨ− | damper device |
DE2856036A1 (en) * | 1978-12-23 | 1980-06-26 | Klein Schanzlin & Becker Ag | LEAK DETECTOR FOR SEALED ROOMS |
FR2444937A1 (en) * | 1978-12-23 | 1980-07-18 | Klein Schanzlin & Becker Ag | LEAK DETECTOR FOR SEALED ENCLOSURE |
DE3030234A1 (en) * | 1980-08-09 | 1982-03-11 | Reinhold Ing.(grad.) 6990 Bad Mergentheim Barlian | Steam detector esp. for nuclear plant leak - has capacitor affected by presence of steam to actuate detector circuit |
DE3417332A1 (en) * | 1984-05-10 | 1985-11-21 | Herbert Dipl.-Ing. 4630 Bochum Koberling | Device for detecting leaks, in particular in pipelines and containers |
DE3639720C1 (en) * | 1986-11-20 | 1993-04-29 | Reinecker Heyko | Pump with canned motor or canned magnetic clutch drive |
US4838763A (en) * | 1986-11-20 | 1989-06-13 | Heyko Reinecker | Canned motor pump |
DE3645260A1 (en) * | 1986-11-20 | 1993-05-19 | Hermetic Pumpen Gmbh | Pump with double-walled split-tube magnetic clutch - has film in space between walls, visible from exterior as evidence of damage or liq. contact. |
WO1998000653A2 (en) * | 1996-07-02 | 1998-01-08 | Lord Corporation | Controllable vibration apparatus |
WO1998000653A3 (en) * | 1996-07-02 | 1998-02-12 | Lord Corp | Controllable vibration apparatus |
US5878851A (en) * | 1996-07-02 | 1999-03-09 | Lord Corporation | Controllable vibration apparatus |
DE19814214A1 (en) * | 1998-03-31 | 1999-10-07 | Flender A F & Co | Machine element with hydraulic filling, especially bearing or shaft |
DE102008060515B4 (en) * | 2007-12-05 | 2015-08-06 | Mando Corporation | vibration |
EP4006376A1 (en) * | 2020-11-25 | 2022-06-01 | BeijingWest Industries Co. Ltd. | A gas cup for a damper assembly and a damper assembly |
US11668364B2 (en) | 2020-11-25 | 2023-06-06 | Beijingwest Industries Co., Ltd | Gas cup for a damper assembly and a damper assembly |
WO2023102521A1 (en) * | 2021-12-03 | 2023-06-08 | DRiV Automotive Inc. | Vehicle suspension damper including floating piston |
US11904647B2 (en) | 2021-12-03 | 2024-02-20 | DRiV Automotive Inc. | Vehicle suspension damper including floating piston |
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