DE873939C - Oil pressure cylinder for regulating the suspension for motor vehicles - Google Patents
Oil pressure cylinder for regulating the suspension for motor vehiclesInfo
- Publication number
- DE873939C DE873939C DEH7652A DEH0007652A DE873939C DE 873939 C DE873939 C DE 873939C DE H7652 A DEH7652 A DE H7652A DE H0007652 A DEH0007652 A DE H0007652A DE 873939 C DE873939 C DE 873939C
- Authority
- DE
- Germany
- Prior art keywords
- oil
- valve
- piston
- cylinder
- reservoir
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/055—Stabiliser bars
- B60G21/0551—Mounting means therefor
- B60G21/0553—Mounting means therefor adjustable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/027—Mechanical springs regulated by fluid means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/02—Spring characteristics, e.g. mechanical springs and mechanical adjusting means
- B60G17/027—Mechanical springs regulated by fluid means
- B60G17/0277—Mechanical springs regulated by fluid means the mechanical spring being a torsion spring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Description
Öldruckzylinder für die Regelung der Abfederung für Kraftfahrzeuge Es sind Abfederungen für Kraftfahrzeuge, insbesondere für Lastkraftwagen bekannt, bei denen jede Blattfeder mit einer Drehstabfeder kombiniert ist, wobei die Blattfedern. von dem untersten biss zu einem veränderlich einstellbaren mittleren Wert die Gesamtlast des Fahrzeuges allein und oberhalb dieses Wertes gemeinsam mit den zugehörigen Drehstäben übernehmen. Erreicht wurde dies insbesondere dadurch, daß die Drehstabfeder mittels einer vom Führersitz des Fahrzeuges aus veränderlich einzustellenden, .am freien hinteren Stabende angreifenden hydraulischen Vorrichtung zum Mittragen gebracht wurde.Oil pressure cylinders for regulating the suspension for motor vehicles There are cushioning for motor vehicles, especially for trucks known, in which each leaf spring is combined with a torsion bar, the leaf springs. the total load from the lowest to a variable, adjustable average value of the vehicle alone and above this value together with the associated torsion bars take over. This was achieved in particular in that the torsion bar spring means one adjustable from the driver's seat of the vehicle, on the free rear end of the rod attacking hydraulic device brought to carry became.
Eine solche hydraulische Vorrichtung ist beispielsweise ein Öldruckzylinder, dessen AuisbiIdu.ng Gegenstand vorliegender Erfindung ist. Sein wesentliches Merkmal besteht darin., daß zwischen einem Ölvorratsraum und dem Zylinder ein Abschaltventil mit Servowirkung und ein Rückschlagventil angeordnet ist, durch die das 01 aus dem Vorratsraum in den Zylinder einströmt, während das Zurückströmen des Öls aus dem Zylinder in den Vorratsraum nur über das Abschaltventil erfolgen kann.Such a hydraulic device is, for example, an oil pressure cylinder, the design of which is the subject of the present invention. Its essential feature is, that a shut-off valve with servo action, and a check valve disposed between an oil reservoir and the cylinder through which the flows 01 from the storage chamber into the cylinder while the backflow of oil from the cylinder into the reservoir only via the Shut-off valve can be done.
Ein besonderer Vorteil des Erfindungsgegenstandes liegt darin, daß das Abschaltventil als Öffnungsventil mit Servowirkung ausgebildet ist. Dadurch wird ermöglicht, daß für die Betätigung des unter hohem Druck stehenden Ventils nur verhältnismäßng geringe Betätigungskräfte erforderlich sind.A particular advantage of the subject matter of the invention is that the shut-off valve is designed as an opening valve with servo action. Through this allows for the actuation of the high pressure valve only relatively small actuating forces are required.
Neben dem Überströmventil ist zwischen Vorratsbehälter und Druckzylinder noch ein Rückschlagv entil vorgesehen, durch das bei geschlossenem Überströmkanäl beim Abwärtsgang des Kolbens das Öl aus dem Vorratsraum in den Zylinder nachfließen kann.Next to the overflow valve is between the reservoir and the pressure cylinder a non-return valve is also provided through which when the Overflow duct When the piston goes down, the oil flows from the reservoir into the cylinder can.
Der Erfindungsgegenstand, der in der Zeichnung in, einer Ausführungsart beispielsweise dargestellt ist, besteht aus einem Druckzylinder 13 mit Kol, ben 9, der über ein Gestänge 12 mit dem freien Ende der Drehstabfeder verbunden ist. Oberhalb des Zylinders 13 befindet sich der Ölvorratsraum io. Beide sind miteinander durch den Überströmkanal 1q. verbunden, der durch ein Abschaltyentil geschlossen werden kann, was zweckmäßig -vom Eiihrersitz,aus durch Druckluft oder elektrisch erfolgt. Außerdem ist zwischen dem Zylinder 13 und dem ölvorratsbehälter io eine Durchlaßbffnung angeordnet, die mit einem Rückschlaggventil, 8, z. B. einer federbelasteten Kugel, versehen ist.The subject of the invention, which is shown in the drawing in one embodiment, for example, consists of a pressure cylinder 13 with Kol, ben 9, which is connected via a linkage 12 to the free end of the torsion bar. The oil reservoir is located above the cylinder 13. Both are with each other through the overflow channel 1q. connected, which can be closed by a shut-off valve, which is expediently done from the Eiihrer's seat, by compressed air or electrically. In addition, a passage opening is arranged between the cylinder 13 and the oil reservoir io, which is provided with a check valve, 8, z. B. a spring-loaded ball is provided.
Das Abschaltventil besteht aus einem mit grober Passung in dem Gehäuse 3 beweglichen, Kolben i, der mit einer Bohrung 15 und einem Ventilsitz 6 versehen ist, auf .dem ein Servoventilkolben 2 sitzt. Dieser ist auf der einen Seite federbelastet, auf der anderen Seite dagegen über eine Stange 4 mit dein Druckluftkolben 7 verbunden.The shut-off valve consists of one with a rough fit in the housing 3 movable piston i, which is provided with a bore 15 and a valve seat 6 is, on .dem a servo valve piston 2 sits. This is spring-loaded on one side, on the other hand, it is connected to the compressed air piston 7 via a rod 4.
Beim Abwärtsgang des Kolbens 9 fließt, wenn der Überströmkanal. 1q. geschlossen ist" das Öd aus dem Vorratsbehälter io durch das Rückschlägventil8 in den Kolbenraum ii des Zylinders 13. Ist dagegen-,der überströmkanal 1q. beim Abwärtsgang des Kolbens 9 offen, dann fließt das Öl nicht allein durch das Rücks.chlagventil:8, sondern zusätzlich noch durch den Überströmkanal 14 in den Kolbenraum i i.When the piston 9 is down, flows when the overflow channel. 1q. is closed "the Öd from the reservoir io through the check valve 8 into the piston chamber ii of the cylinder 13. If, on the other hand, the overflow channel 1q. is open when the piston 9 is down, then the oil does not flow through the Rücklagventil: 8, but additionally through the overflow channel 14 into the piston chamber i i.
Ist der Kolbenraum i i mit Öl gefüllt, so ist die Drehstabfeder -in voller Wirkung der Blattfeder zugeschaltet. Diese Stellung wird beibehalten, solange der LKW oder der Omnibus vollbelastet ist. Bei geringer Belastung des Fahrzeuges wäre aber diese Federwirkung zu hart. Es mußdaher in diesem Falle die .Spannung der Drehstabfeder verringert werden. Dies :geschieht dadurch, daß das A.bschaltventil so lange geöffnet wird, bis das Öl ganz .oder teilweise aus dem Kolbenraum. i z in den Vorratsbehälter io Zurückgedrückt ist.If the piston chamber i i is filled with oil, the torsion bar spring is -in full effect of the leaf spring switched on. This position is maintained as long as the truck or bus is fully loaded. With little load on the vehicle but this spring action would be too hard. In this case, therefore, the tension must be applied the torsion bar spring can be reduced. This: happens because the switching valve is opened until the oil completely or partially out of the piston chamber. i z is pushed back into the storage container OK.
Die Betätigung des Abschaltventils erfolgt vom Führersitz aus; beispielsweise mittels Preßiluft. Dabei wird der Preßluftkolben 7 im: zugehörigen Zylinder so verschoben, daß die Stange 4 den Servoventi,lk olben 2 von seinem Sitz abhebt und der Kolben i von seinem Sitz durch das aus dem Behälter io nachfließende Öl zurückgedrückt wird. Während also beim Abwärtsgang des Kolbens 9 das Öl sowohl durch das Rückschlagventil: als auch durch den Kanal 14 in den Kolbenraum i i einströmt, kann es beim Aufwärtsgang des Kolbens nur durch den geöffneten Kanal i¢ entweichen. Infol@gedessen wird das Zurückströmen des Öls in den Vorratsraum io wesentlich langsamer vor sich gehen als .das Einströmen.The shut-off valve is operated from the driver's seat; for example by means of compressed air. The compressed air piston 7 is displaced in the associated cylinder so that the rod 4 lifts the servo valve, lk piston 2 from its seat and the piston i is pushed back from its seat by the oil flowing in from the container io. While the oil flows through the check valve as well as through the channel 14 into the piston chamber ii during the downward movement of the piston 9, it can only escape through the open channel i ¢ when the piston is upwardly moving. As a result, the oil will flow back into the reservoir io much more slowly than the flow.
Durch geeignete Abstimmung der Querschnitte des Überströmkanals 1q. und des Rückschlagventils B -vvird eine entsprechende einseitige Stoßdämpferwirkung erreicht.By suitable coordination of the cross sections of the overflow channel 1q. and the check valve B -vv is a corresponding one-sided shock absorber effect achieved.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH7652A DE873939C (en) | 1951-02-24 | 1951-02-24 | Oil pressure cylinder for regulating the suspension for motor vehicles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH7652A DE873939C (en) | 1951-02-24 | 1951-02-24 | Oil pressure cylinder for regulating the suspension for motor vehicles |
Publications (1)
Publication Number | Publication Date |
---|---|
DE873939C true DE873939C (en) | 1953-04-20 |
Family
ID=7145178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH7652A Expired DE873939C (en) | 1951-02-24 | 1951-02-24 | Oil pressure cylinder for regulating the suspension for motor vehicles |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE873939C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1160313B (en) * | 1957-07-13 | 1963-12-27 | Volkswagenwerk Ag | Load-dependent, hydraulic-mechanical adjustment device for vehicle suspensions |
DE1228947B (en) * | 1962-08-23 | 1966-11-17 | Porsche Kg | Device for adjusting the height of the frame or car body of vehicles, in particular motor vehicles |
DE1290827B (en) * | 1962-12-13 | 1969-03-13 | Maschf Augsburg Nuernberg Ag | Torsion bar suspension for all-terrain vehicles |
EP0683089A1 (en) * | 1994-05-17 | 1995-11-22 | Carlyle Monthero | Road vehicle with lowerable loading platform |
-
1951
- 1951-02-24 DE DEH7652A patent/DE873939C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1160313B (en) * | 1957-07-13 | 1963-12-27 | Volkswagenwerk Ag | Load-dependent, hydraulic-mechanical adjustment device for vehicle suspensions |
DE1228947B (en) * | 1962-08-23 | 1966-11-17 | Porsche Kg | Device for adjusting the height of the frame or car body of vehicles, in particular motor vehicles |
DE1290827B (en) * | 1962-12-13 | 1969-03-13 | Maschf Augsburg Nuernberg Ag | Torsion bar suspension for all-terrain vehicles |
EP0683089A1 (en) * | 1994-05-17 | 1995-11-22 | Carlyle Monthero | Road vehicle with lowerable loading platform |
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