Krupp Bilstein Gmbh

Thyssenkrupp Bilstein Gmbh

August Bilstein Gmbh & Co Kg

Thomas Sasse

Bernd Stichler

Jürgen Adamek

Oliver Poth

Manfred Diederich

Axel Gaillard

Stefan Schwindling

Ulrich Hartig

Heribert Justinger

J&ouml;rg Rehse

Alfred Mathony

Christian Satzek

A piston for a hydraulic dashpot. The piston () is mounted on one end of a piston rod (), travels back and forth inside a cylinder (), which it divides into two chambers (&), and has a body () provided with axial channels (&), each of which can be opened and closed at the end by a one-way valve in the form of a cup spring or stack of cup springs (&), independently adjusting their tensions for both the compression and the suction phases. The cup springs (&) rest against and in alignment with the body, and the tension is adjusted by deforming the body resiliently or plasticly against its contact surface.

Piston for a hydraulic dashpot, and method of manufacturing such a piston

A wheel suspension for land vehicles that is provided with a spring resting against at least one seat, with a dashpot, and with an attachment for a stabilizing rod, whereby one seat can be adjusted axially parallel to the spring. The object of the invention is to allow the stabilizing rod's attachment to be situated in the vicinity of the seat. An attachment ( or ) for the stabilizing rod is accordingly directly mounted on or indirectly attached to the spring seat ( ). The attachment can also be mounted on or attached to the mechanism that adjusts it, at a variable distance from the seat.

Wheel suspension for land vehicles

A device for increasing shock absorption by hydraulic means in the terminal section ( & ) of hydraulic shock absorbers with a shock-absorption piston ( ) that divides the shock absorber into two compartments. The width of a channel that conveys hydraulic fluid through the piston is reduced by partly blocking the access of fluid thereto. The access comprises several individual accesses that do not mutually communicate. To ensure precise and constant increased shock absorption in the vicinity of the buffers, one or more individual accesses are completely blocked.

Device for increasing shock absorption

A dashpot with an inner cylinder ( ) accommodated in an outer cylinder ( ), and a piston ( ) traveling back and forth inside on the end of a piston rod ( ) and separating the inner cylinder into two chambers ( & ). The piston rod enters the cylinders through a hole at one end that seals it off and positions it. The outer cylinder is provided with a base ( ) at the end opposite the end with the hole. The inner cylinder is centered along the axis of the outer cylinder at each end. The cylindrical gap ( ) between the two cylinders is provided with a fluid-accommodating compartment ( ) and, toward the base, a port ( ) opening into the adjacent chamber ( ). The chamber accommodates, preferably above the port, a vent ( ). The mutually contacting ends of the cylinders are hot or cold welded together at the base end or at the end remote from the base.

Dashpot with two cylinders

A dashpot for wheel suspensions, with a preferably sheet-metal spring cup (,). The cup is attached to a shock absorber or its accommodating tube, supports a helical spring that surrounds the shock absorber or tube, and can be advanced along the shock absorber or tube on threads. To allow the dashpot to be raised and lowered in precise increments, the attachment is maintained tight by a cylindrical housing (,). The housing is provided with a slot extending over its total length and with outside threads. Its inner surface of the housing rests directly against the shock absorber or its tube. The housing operates in conjunction with a height-adjustment ring (,) or neck (,) with matching inside threads on the spring cup. The slope of the threads ensure that the force exerted by the spring on the spring cup will squeeze the slotted housing together radially.

Dashpot for wheel suspensions

A shock absorber for an automotive vehicle includes a damping cylinder having a cylinder chamber containing damping fluid; a damping piston axially slidably received in the damping cylinder and dividing the cylinder chamber into first and second work chambers; pressure-responsive valves mounted on the damping piston for controlling the flow of fluid through the damping piston in the pressing and pulling phases; an axially hollow piston rod affixed to the damping piston and extending axially in the damping cylinder; an outer tube coaxially surrounding the damping cylinder and defining an equalizing chamber therewith; and a bottom valve assembly provided in the second work chamber. The equalizing chamber is in communication with the second work chamber through the bottom valve assembly. There are further provided a first bypass channel coupling the first and second work chambers with one another through the hollow piston rod; a second bypass channel coupling the second work chamber with the equalizing chamber by circumventing a bottom valve of the bottom valve assembly; and a setting device for controlling the first and second bypass channels as a function of relative rotary displacements between the damping cylinder and the piston rod.

Growing community of inventors

Ennepetal, Germany

Thomas Sasse