PISTON/CYLINDER UNIT

摘要

A piston-cylinder unit including a piston (103) that is fluid pressure supported and movable in a linear manner in a cylinder (2), wherein the cylinder (2), a face wall (116) of the piston (103) and a face wall (12) of the cylinder define a compression cavity (18) which is at a minimum size in a portion of a top dead center (TDC) of the piston (103), wherein the compression cavity (18) is connected in a fluid transferring mariner with a bearing gap (19) which is formed between a cylinder inner circumferential wall (14) and a piston outer circumferential wall (136), wherein a plurality of fluid outlet nozzles (32′, 34′) are arranged in at least one cross-sectional plane (Q2, Q3) of the cylinder (2) in the cylinder inner circumferential wall (14) along a circumference, which fluid outlet nozzles (32′, 34′) open into the bearing gap (19) and are connected with a supply conduit for a pressurized fluid, and wherein a plurality of fluid outlet nozzles (130′) which open into the bearing gap (19) are arranged in at least one cross-sectional plane (Q1) of the piston (103) adjacent to the piston face wall (116) in the piston outer circumferential wall (136) along the circumference, characterized in that the fluid outlet nozzles (130′) in the piston outer circumferential wall (136) are also connected with the supply conduit for the pressurized fluid.

主权项

1. A piston-cylinder unit, comprising:
a piston that is fluid pressure supported and movable in a linear manner in a cylinder, wherein the cylinder, a face wall of the piston and a face wall of the cylinder define a compression cavity which is at a minimum size in a portion of a top dead center of the piston, wherein the compression cavity is connected in a fluid transferring manner with a bearing gap which is formed between a cylinder inner circumferential wall and a piston outer circumferential wall, wherein a plurality of fluid outlet nozzles are arranged in at least one cross-sectional plane of the cylinder in the cylinder inner circumferential wall along a circumference, which fluid outlet nozzles open into the bearing gap and are connected with a supply conduit for a pressurized fluid, wherein a plurality of fluid outlet nozzles which open into the bearing gap are arranged in at least one cross-sectional plane of the piston adjacent to the piston face wall in the piston outer circumferential wall along the circumference, and wherein the fluid outlet nozzles in the piston outer circumferential wall are also connected with the supply conduit for the pressurized fluid.