Boge Ag

Norbert Sommer

Hubert Beck

Ewald Kohberg

Karl-Heinz Lohr

A self-pumping hydropneumatic shock absorbing strut for a vehicle with internal level regulation for adjustment toward a standard elevation of the vehicle body capable of operating on a standing vehicle without a separate extenal supply of energy. For this purpose, the working chamber of the shock absorbing strut is connected to a higher pressure reservoir which is mounted external to the working cylinder and has a flow passage to the working cylinder. The flow passage is provided with a check valve which can be released or opened when the elevation of the vehicle is significantly below the standard elevation. During the release or opening of the check valve, the flow passage is open to allow free flow in both directions. A pressure equilibrium between the higher pressure oil reservoir and a pressurized oil chamber normally connected to the working cylinder causes the adjustment toward the standard elevation.

Self-pumping hydropneumatic shock absorbing strut

Self-pumping hydropneumatic shock absorbing leg with internal level regulation, in which the dampening force can be controlled and continuously adjusted during operation of a vehicle. For this purpose, the work piston of the shock absorber is provided with a check valve, whereby a passage runs from one work chamber to an adjustable dampening valve, and from this damping valve, a flow connection runs directly or indirectly via at least one additional check valve into the other work chamber and into a circulation passage which forms a connection to the high pressure chamber.

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Konigswinter, Germany

Norbert Sommer