Abstract:
Regelbarer Schwingungsdämpfer (1), insbesondere für ein Fahrzeugfahrwerk, umfassend ein Zylinderrohr (10), das ein darin abgedichtet aufgenommenes Hydraulikfluid aufweist, einen Kolben (2), der innerhalb des Zylinderrohres (10) entlang einer Zylinderrohrachse (A) axial bewegbar ist und der das Zylinderrohr (10) in zwei Arbeitsräume (11, 21) unterteilt, eine Kolbenstange (3), die parallel zur Zylinderrohrachse (A) ausgerichtet und mit dem Kolben (2) verbunden ist, wobei zumindest eine Ventilbaugruppe (13, 23) zur Dämpfung der Kolbenbewegung in einer Betätigungsrichtung (R1, R2) an einer Fluiddurchführung (12, 22) angeordnet ist, wobei zusätzlich zu den Fluiddurchführungen (12, 22) zwischen den beiden Arbeitsräumen zumindest ein Bypasskanal (47) vorgesehen ist, der für eine erste Durchflussrichtung (B1) einen ersten Durchflussquerschnitt aufweist, der unterschiedlich ist zu einem zweiten Durchflussquerschnitt für eine zweite Durchflussrichtung (B2), wobei der Bypasskanal (47) zumindest teilweise durch zumindest einen Abflussdurchgang (38, 34) gebildet ist, der ablaufseitig eines Vorsteuerventils (31), welches zur Einstellung eines Vorsteuerdrucks dient, angeordnet ist.
Abstract:
A shock absorber may include a piston rod, a first rod guide member, a second rod guide member, and an electronically controlled valve assembly. The first rod guide member is concentrically disposed about the piston rod, and the second rod guide member is concentrically disposed about the piston rod and is adjacent the first rod guide member. The electronically controlled valve assembly may include a coil assembly and a valve guide assembly. The valve guide assembly may be disposed adjacent to the coil assembly and may be concentrically disposed about the second rod guide member. The valve guide assembly includes a spool and defines a valve inlet, a valve outlet, and a chamber. The spool is disposed within the chamber and controls the flow of fluid between the valve inlet and the valve outlet.
Abstract:
A triple tube shock absorber includes a pressure tube, a reserve tube and an intermediate tube. The intermediate tube is disposed between the pressure tube and the reserve tube. A control valve is in communication with the intermediate chamber. The control valve engages a transfer ring which has a saddle shaped surface that mates with the outside surface of the intermediate tube. A triangular shaped weld bead also has a saddle shape to engage the outer surface of the intermediate tube. The weld bead has a triangular shape to facilitate capacitance discharge welding of the transfer ring to the intermediate tube.
Abstract:
A shock absorber according to the present invention includes a pressure tube having a working chamber disposed therewithin. A piston is slidably disposed within the working chamber and divides the working chamber into an upper working chamber and a lower working chamber. An intermediate tube is disposed around the pressure tube and the working chamber to define an intermediate chamber. A reserve tube is disposed around the intermediate tube. A collar is attached to the intermediate tube. The collar is defined by a shoulder portion extending generally lateral to the intermediate tube and a radial neck portion extending generally perpendicularly to the intermediate tube. An external control valve includes a valve seat received within the collar in an installed position. The external control valve is attached to the reserve tube.
Abstract:
Verstellbarer Schwingungsdämpfer (1), umfassend mindestens ein verstellbares Dämpfventil (33, 35) für jede Arbeitsbewegungsrichtung des Schwingungsdämpfers (1), wobei jedes Dämpfventil (33, 35) über einen Hochdruckanschluss (67, 69) an einen Arbeitsraum (37, 39) und über einen Niederdruckanschluss (107, 109) an einen Speicher (49) angeschlossen ist, wobei die beiden verstellbaren Dämpfventile (33, 35) in einem gemeinsamen Gehäuse (31) angeordnet sind, dass einen Anschlussraum (59) aufweist, wobei der Anschlussraum (59) eine Verbindungsöffnung (53, 55) zu jeweils einem Arbeitsraum (37, 39) und davon getrennt einen Anschluss (57) an den Speicher (49) aufweist.
Abstract:
The invention relates to a cylinder tube comprising an outer housing secured to a cylinder tube-side connecting surface by means of at least two mounting sleeves that conduct a working medium, each mounting sleeve overlapping with a connecting opening of the cylinder, and the sleeves being secured to said connecting surface in a bonded manner.
Abstract:
A monotube shock absorber which is capable of high compression damping forces while operating at low pressure for reduced friction is disclosed. The monotube shock absorber includes a pressure tube, a piston assembly, a piston rod and a fixed valve assembly. A fluid/gas chamber is defined by the fixed valve assembly. A baffle is disposed within the fluid/gas chamber to reduce the sloshing of oil within the fluid/gas chamber.
Abstract:
A monotube shock absorber which is capable of high compression damping forces while operating at low pressure for reduced friction is disclosed. The monotube shock absorber includes a pressure tube, a piston assembly, a piston rod, a fixed valve assembly and a floating piston. A variety of methods for securing the fixed valve assembly to the pressure tube are disclosed including use of single piece pressure tubes and pressure tube assemblies. In addition, a method for assembling the monotube shock absorber including an oil filling technique is described.
Abstract:
A shock absorber has a housing with a piston rod assembly disposed therein. A first rod guide member is secured within a first portion of the housing so as to be concentrically disposed about at least a portion of the piston rod assembly. A second rod guide member is secured within the housing adjacent the first rod guide member so as to be concentrically disposed about at least another portion of the piston rod assembly. A digital valve assembly is disposed within the second rod guide member and fluidly couples chambers within the shock absorber.