Apparatus for treating workpieces

Abstract

The invention relates to a fluid rotary leadthrough having a journal and a sleeve. The sleeve and the journal are sealed off with respect to one another. The journal and the sleeve each have a line connection. The line connections, at least from time to time, are connected to one another via a fluid passage so that a flow of fluid through the fluid rotary leadthrough is made possible. The journal is arranged rotatably in the sleeve.

1 . A fluid rotary leadthrough, comprising: 
 a journal; and    a sleeve, the sleeve and the journal being sealed off with respect to one another, the journal and the sleeve each having a line connection, the line connections at least from time to time being connected to one another via a fluid passage so that a flow of fluid through the fluid rotary leadthrough is made possible, and wherein the journal is arranged rotatably in the sleeve.    
   
   
       2 . The fluid rotary leadthrough as claimed in  claim 1 , wherein the journal has at least one passage with an axial passage section and a radial passage section, the radial passage section opening out in a lateral surface of the journal.  
   
   
       3 . The fluid rotary leadthrough as claimed in  claim 2 , further comprising at least one annular passage around the journal, and wherein the axial passage section, the radial passage section, and the at least one annular passage form a fluid passage.  
   
   
       4 . The fluid rotary leadthrough as claimed in  claim 3 , wherein the sleeve or the journal has the at least one annular passage.  
   
   
       5 . The fluid rotary leadthrough as claimed in  claim 3 , wherein the at least one annular passage is designed to run all the way around the journal, and wherein the line connections of the journal and the sleeve are continuously connected to one another during rotation of the journal.  
   
   
       6 . The fluid rotary leadthrough as claimed in  claim 3 , further comprising a first seal and a second seal, the first seal and the second seal being arranged axially offset on a first side and a second side of the at least one annular passage, wherein the first and second seals are designed as a ring seal.  
   
   
       7 . The fluid rotary leadthrough as claimed in  claim 6 , wherein the first seal and second seal are oil lubricated seals.  
   
   
       8 . The fluid rotary leadthrough as claimed in  claim 1 , further comprising sealant lines.  
   
   
       9 . The fluid rotary leadthrough as claimed in  claim 1 , further comprising a plurality of fluid passages being defined in the journal by a plurality of axial passage sections and a plurality of radial passage sections, the plurality of radial passage sections opening out in a lateral surfaced of the journal and the plurality of axial passage sections being offset in a manner of a ring.  
   
   
       10 . The fluid rotary leadthrough as claimed in  claim 1 , further comprising a plurality of annular passages axially offset with respect to one another.  
   
   
       11 . The fluid rotary leadthrough as claimed in  claim 10 , further comprising a ring seal between the plurality of annular passages.  
   
   
       12 . The fluid rotary leadthrough as claimed in  claim 1 , further comprising at least one gas feed passage and at least one evacuation passage.  
   
   
       13 . The fluid rotary leadthrough as claimed in  claim 12 , wherein the at least one evacuation passage has an internal diameter from 25 mm to 250 mm, and the gas feed passage has an internal diameter from 5 mm to 50 mm.  
   
   
       14 . The fluid rotary leadthrough as claimed in  claim 1 , further comprising a plurality of gas feed passages and a plurality of evacuation passages.