Robert Boschgmbh

Gerhard Haug

Heinz Siegel

August Kraisel

A pressure vessel having a housing subdivided by a flexible partition into an upper gas portion and a lower liquid portion. The gas portion of the housing forms a gas chamber surrounding by an upper wall formed of curved lines of various radius. An inlet to receive a pressure gas is formed in the upper wall so that the inlet is positioned in the area of the upper wall outlined with a curve of a minimal radius. After loading of the pressure vessel with a gas under relatively high pressure the inlet is sealed by a locking element. In the area where the inlet with the locking element is positioned, the deformations exerted on the wall under gas pressure are minimal.

Hydro-pneumatic pressure vessel

A pressure vessel includes a housing having an interior and a passage communicating with the interior and being bounded by an inner circumferential surface. A separate plug is received in the passage. The plug has an outer circumferential surface juxtaposed with the inner circumferential surface. These surfaces define together at least one gap of relatively small cross-section. The gap extends lengthwise of the passage communicating with the interior of the housing.

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Sachsenheim, Germany

Gerhard Haug