Patent ID: 6145890
Filing Date: 2000-11-14
Classification: B23Q,Y10S

Abstract:
A device (1) for supplying a pressurised medium from a fixed component (2) into a rotating component comprising a hollow clamping cylinder (4), the rotating component having an annular groove (14) in which is disposed the fixed component and the fixed component and rotating component defining radially extending sealing gaps (15, 16) between the fixed component (2) and the rotating component (3, 3'), wherein circumferential pressure chambers (29, 30 or 31, 32 or 31, 31', 32, 32') are disposed in each of surfaces (21; 22 or 23, 24) of a selected one of the fixed component (2) and the rotating component (3, 3'), which pressure chambers define limits of the sealing gaps (15, 16), and wherein control slots (37, 38 or 39, 40 or 39, 39', 40, 40') connect the pressure chambers (29, 30 or 31, 32 or 31, 31', 32, 32') to the annular groove (14) between the fixed component (2) and the rotating component (3, 3'), and wherein the end surfaces (21, 22 or 23, 24) are of equal areas.