Patent ID: 7823929
Filing Date: 2010-11-02
Classification: F16L

Abstract:
1. Radial rotary transmission leadthrough with a rotating shaft having a surface, which shaft has at least two substantially axially running channels ( 4 , 4 ′) which have radial transition openings ( 5 ) open to the surface of the shaft, and with at least one guide bush ( 2 , 2 a ) tightly surrounding the shaft ( 1 ) proximate the radial transition openings ( 5 ) which has at least one radial feed bore each ( 6 ) for every one of the channels ( 4 , 4 ′) to be connected via the bush ( 2 , 2 a ), wherein the channels ( 4 , 4 ′) have their radial transition openings ( 5 ) at axial positions of the shaft ( 1 ), characterized in that there are at least two bushes ( 2 , 2 a ) encompassing the shaft ( 1 ) one each, respectively, for a connection with a respective one of the channels ( 4 , 4 ′) at axially different positions, and which are housed independently from each other in a common bush holder ( 10 ), wherein at least one of the bushes ( 2 , 2 a ) has several radial feed bores ( 6 , 6 a , 6 ′); characterized in that the bushes ( also including a plurality of grooves (