Robert Boschgmbh

August Kraisel

Heinz Siegel

Heinrich Kochendorfer

Hartmut Sandau

Wilhelm Weigert

Gerhard Haug

Erwin Gaub

Winfried Steinel

Klaus Ritter

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.

Pressure vessel

A piston rod connected at one end to a piston slidably arranged in a cylinder projects with its other end through an opening in an end wall of the cylinder beyond the latter and a fork-shaped member is connected by a friction weld, that is without adding welding material or external heat, to the other end of the piston rod.

Cylinder-and-piston arrangement and method of manufacturing the same

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Bittenfeld, Germany

August Kraisel