Fichtel & Sachs Ag

Andreas Zietsch

Gunther Handke

Alfred Wirth

Otto Samonil

Michael Hurrlein

Lars Rossberg

Gunter Handke

Vibration damper, in particular a shock absorbing strut, with an essentially U-shaped decompression stop boundary bracket, which bracket is fastened to a container tube, and in the event of a rebound of a vehicle axle comes into contact with a chassis-side support surface. The bracket includes a base plate with side walls, and the entire decompression stop boundary bracket is formed from a single bent component. The base plate is realized in a seamless manner and has a cutout which is adapted to the diameter of the container tube and acts as a positioning stop for the entire decompression stop boundary bracket.

Vibration damper for a motor vehicle, the vibration damper having a

A fluid oscillation damper is provided with an electromagnetically controlled valve for varying the damping force of the oscillation damper. The electromagnetically controlled valve is housed within a compartment confined by two housing parts. A first housing part is fastened to a container of the oscillation damper A second housing part is fastened to the first housing part. Both housing parts are nonreleasably interconnected. The electromagnetically controlled valve is actuated by an electromagnetic coil. The electromagnetic coil is provided with a ferromagnetic core. This ferromagnetic core is constituted by a plurality of components. These components are assembled so as to reduce the magnetic resistance for the magnetic flux.

Fluid operated oscillation damper

A Shock absorber, in particular a MacPherson strut unit, with a decompression stop limit bracket which is fastened to a container tube and which, in the event of a rebound of a vehicle axle, comes into contact with a body-side support surface, comprising a base plate with side walls which is welded to a reinforcement plate and a radial guide plate which is connected to the container tube, characterized by the fact that the side walls and the guide plate as well as the reinforcement plate form a groove which is filled by a weld seam such that all the parts forming the groove are connected to one another by means of the weld seam.

Shock absorber, and shock absorber, such as a MacPherson strut, with

A shock absorber with a check valve device and a check valve device for a shock absorber is disclosed. The check valve device located in the bypass of a shock absorber between a high-pressure segment and a low-pressure segment has a check valve which can be moved by an external control into a standby opening status, in which the actual opening can be performed as a function of the pressure prevailing in the high-pressure segment, when the pressure falls below a predetermined value. By coordinating the stroke distance of a check valve body with a magnet armature, and taking into consideration a control chamber discharge cross section, noises and fluctuations of the damping force characteristic can be eliminated even with a very soft comfort setting of the check valve device.

Shock absorber with a check valve and a check valve for a shock absorber

Shock absorber with adjustable damping force, comprising a cylinder, an axially movable piston rod with a piston connected to it, a number of fluid chambers with capacities which can be changed relative to one another as a function of the movement of the piston rod relative to the cylinder, and fluid connections between at least two of the fluid chambers, whereby at least one of the fluid connections has a check valve module, whereby the check valve module is also designed with at least one valve seat, whereby a valve check element can be elastically applied against the valve seat in a check position, whereby this valve check element can also be adjusted by means of a field coil in opposition to the closing force of at least one spring in a number of positions, whereby the spring(s) is/are a unit of a row inside the check valve module, and possibly an intermediate module, which consists of a control chamber discharge valve body and a supplemental discharge valve body, characterized by a connection (17, 29, 15a, 15c, 19a, 19c, 25a, 25c, 27a, 27c, 37a, 37c) between any of the springs (29, 17) and inside the row of adjacent components of the spring(s), so that the adjacent parts form a pre-assembled unit, whereby the connection (17, 29, 15a, 15c, 19a, 19c, 25a, 25c, 27a, 27c, 37a, 37c) can withstand a load which corresponds to the sum of the spring force and weight of the parts exerting a force on it.

Shock absorber with a check valve module and a check valve module for a

A fluid oscillation damper is provided with an electromagnetically controlled valve for varying the damping force of the oscillation damper. The electromagnetically controlled valve is housed within a compartment confined by two housing parts. A first housing part is fastened to a container of the oscillation damper. A second housing part is fastened to the first housing part. Both housing parts are nonreleasably interconnected.

Growing community of inventors

Rothlein, Germany

Andreas Zietsch