Abstract:
Die Erfindung betrifft eine Luftfederanordnung mit mindestens einem integrierten Steuerventil (1) zur Beaufschlagung einer zwischen einem Außenrohr (2), einem Abrollrohr (3) und einem diese verbindenden von einem Luftfederbalg (4) gebildeten Druckkammer (5) mit Druckluft, wobei dasmindestens eine integrierte Steuerventil (1) mit mehreren Schaltpositionen über integrierte mechanische Betätigungsmittel in Abhängigkeit eines Luftfederhubs zur Niveaueinstellung ansteuerbar ist, wobei ferner die Druckkammer (5) eine stirnseitig zwischen einem Rohroberteil (6) und einem Rohrunterteil (7) des Außenrohrs (2) anliegende Druckfeder (8) umfasst, und ein mit dem mindestens einen integrierten Steuerventil (1) mechanisch verbundener Hebel (9) über mindestens eine an einer Stirnfläche des Rohrunterteils (7) angeordnete Betätigungsnase (10) betätigbar ist, um eine Stufencharakteristik einer Be- und Entlüftung der Druckkammer (5) zu realisieren.
Abstract:
A dual volume air spring (5) for a truck suspension, which has an air bag chamber providing a variable volume (6) and a fixed volume chamber (7). The chambers are interconnected by a closable orifice (12). The air bag is provided with a post-like orifice closer (20) which is pushed into the orifice when the air bag (9) is sufficiently compressed ad withdrawn from the orifice when the air bag is not compressed. In normal operation the orifice is open and combined volumes of the chambers are available resulting in a low spring rate. The orifice closer (20) has an orifice closing portion (22) which is relatively pliant and a rigid or semi-rigid portion (21) which acts as a bump-stop when the pliant portion is substantially completely compressed. When the orifice is completely closed the spring has a high spring rate.
Abstract:
An apparatus and method for supporting a dynamic load relative to a foundation, such as a vehicle relative to the road, by a hydraulic system that monitors the movement of the load and adds or removes hydraulic fluid from the system to compensate for the load change. The hydraulic system is preferably one or more hydraulic cylinders that have a first chamber operably connected to the load and a second chamber operably connected to the foundation. The first and second chamber are connected by a valve. The valve is connected to the second chamber and a source of pressurized fluid with a reservoir. The first chamber senses the load change and the valve adds fluid from the pressurized fluid source to the second chamber or removes fluid from the second chamber to the reservoir to compensate for the change in the load and maintain the load in substantially the same position relative to the foundation.
Abstract:
본 발명은 유체를 이용한 차량용 높이조절식 현가장치에 관한 것으로, 차체의 하부에 마련되며, 유압에 의해 승강되는 피스톤과 피스톤로드를 구비하고, 상기 피스톤에 의해 상부실린더와 하부실린더로 이분되는 높이조절 실린더와, 상기 높이조절 실린더에 연결되어, 상기 높이조절 실린더 내부의 유압에 의한 충격을 흡수하는 완충포켓과, 상기 높이조절 실린더와 연결되며, 상기 상부실린더 또는 하부실린더의 내부에 유체를 공급하는 충압포켓과, 상기 충압포켓에 유체를 공급하여, 상기 충압포켓 내부의 압력이 기설정된 고압 범위 내에서 유지될 수 있도록 하는 펌핑장치와, 상기 높이조절 실린더 및 펌핑장치와 연통되어, 상기 높이조절 실린더로부터 유체를 공급받아 상기 펌핑장치에 유체를 공급하는 귀환포켓을 포함한다. 그리고, 상기 높이조절 실린더는, 상기 충압포켓으로부터 유체를 공급받아 상기 피스톤과 피스톤로드를 승강시켜, 상기 차체의 높이를 조절할 수 있도록 하는 것을 특징으로 한다. 또한, 본 발명에 따르면, 금속재의 외관과 탄성력을 갖는 내관으로 마련되는 각 포켓간의 압력차, 내관의 탄성력 및 밸브의 신속한 개폐에 의해 공기 또는 유체와 같은 작동 유체가 신속하게 유동됨으로써, 소용량의 펌핑장치를 구비하면서도 신속한 응답특성을 갖는 현가장치를 제공할 수 있도록 하는 효과가 있다. [대표도] 도 1
Abstract:
Luftfeder (1) für ein Fahrwerk eines Kraftfahrzeugs umfassend einen Luftfederdeckel (3) und einen Luftfederkolben (4), wobei zwischen dem Luftfederdeckel (3) und dem Luftfederkolben (4) ein luftdicht eingespannter Luftfederbalg (2) aus elastomerem Material teilweise einen mit Druckluft befüllbaren Arbeitsraum (6) begrenzt und unter Ausbildung einer Rollfalte (9) am Luftfederdeckel (3) und/oder Luftfederkolben (4) abrollt, wobei ein Luftverdichter (5) in der Luftfeder (1) integriert ist.
Abstract:
An air spring (10) comprises a hollow elastic sleeve (12), an upper component (22) for securing the air spring to a first frame, a hollow piston (14) for securing the air spring (10) to a second frame that is movable relative to the first frame, and a cylinder (16) surrounding the hollow elastic sleeve to constrain the diameter of the hollow sleeve (12) and reduce the effective area of the air spring to reduce the natural frequency of the air spring (10).
Abstract:
Die Erfindung betrifft ein Gasfedersystem zur Abstützung von Radaufhängungen oder Achsen an einem Fahrzeugaufbau mit einem zwischen einer radtragenden oder radführenden Anbindung und einer fahrzeugaufbauseitigen Anbindung angeordneten Schlauchrollbalg, der zwischen einem Abstützelement und einem mit einem druckfesten Hohlraum ausgestatteten Abrollkolben montiert ist, wobei das Abstützelement und der Abrollkolben über ein zentrales Schubgelenk aneinander geführt sind. An dem Abstützelement ist dazu ein Steuerrohr angeordnet. Letzteres ist an seiner Außenwandung bereichsweise tailliert, trägt Sicken oder weist Öffnungen von Kanälen auf. Der Hohlraum des Abrollkolbens hat eine Steuermanschette, die das Steuerrohr zumindest hubbereichsweise mit Steuerspiel umgreift und abhängig vom Einfederungshub den taillierten Bereich, die Sicken oder Öffnungen ganz oder teilweise überdeckt. Mit der vorliegenden Erfindung wird ein Gasfedersystem mit einem Verdränger entwickelt, der sein Gasvolumen auf einfache Weise federungshubabhängig ändert.
Abstract:
The invention relates to an air spring for transport vehicles comprising a vessel ("piston") (10) of rigid, pressure-resistant material, such as steel, and a bellows (9), fitted onto the vessel ("piston") (10), of e.g. nylon-reinforced rubber, being in pneumatic connection with the "piston" (10) and connected to a source of compressed air. The invention is characterised by the "piston" (10) being provided with an air shut-off valve (13) in the opening (12) towards the bellows (9).
Abstract:
An air spring that can be used in an air suspension system includes a hollow piston, a hollow shaft and a body. The hollow piston has a hole through it. The hollow shaft has a shaft interior volume in communication with the hole in the piston. The body has a body interior volume in communication with the hole in the hollow piston. The hole in the hollow piston in communication with the shaft interior volume and the body interior volume provides a total interior volume. Wherein, the total interior volume is greater than the body interior volume thereby providing a linearized spring rate.
Abstract:
A hydraulic actuator includes an energy recuperation device which harvests the energy generated from the stroking of a shock absorber. The energy recuperation device can function in a passive energy recovery mode for the shock absorber or an active mode for the shock absorber. The energy that is generated by the energy recuperation device can be stored as fluid pressure or it can be converted to another form of energy such as electrical energy.