Piston/cylinder unit

Details Piston/cylinder unit Piston/cylinder unit

2011-03-29

2011-03-29

Lopez, F. Daniel (Department: 3745)

Expansible chamber devices

Cylinder detail

C092SDIG001

Reexamination Certificate

active

07913613

ABSTRACT:
A piston/cylinder unit comprising a cylinder, a piston which reciprocates in the axial direction of the cylinder between first and second piston positions, and a fluid bearing provided between the piston and the cylinder which supports the piston such as to be axially displaceable in the cylinder and defines the piston-side bearing surface, enclosing the circumference of the piston at least over a part of the axial extension of the piston, whereby the fluid bearing comprises a number of outlet nozzles for the fluid arranged in the inner circumferential wall of the cylinder. The outlet nozzles are arranged such that when the piston is in the second position, first outlet nozzles provide the front or middle region of the piston-side bearing surface relative to the piston longitudinal extension and second outlet nozzles provide the middle region of the piston side bearing surface with pressure fluid.

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