Processing apparatus for processing a workpiece surface with fluid flow shielding

Abstract

Processing apparatus for processing a workpiece surface in form of an internal coating of cylinder bores which are arranged in a row. The apparatus includes a shield unit which is provided to separate from one another—at least during operation—a part region of the workpiece surface provided for the processing and an adjacently arranged part region of the workpiece surface, whereby the shield unit has at least one blocking nozzle which is provided to generate a fluid flow for separating the at least two part regions, wherein the blocking nozzle is positioned such that the fluid flow flows along the workpiece surface and the blocking nozzle is directed to the part region between two cylinder bores.

What is claimed: 
     
         1 . A processing apparatus for processing a workpiece surface in form of an internal coating of cylinder bores which are arranged in a row, the apparatus including a shield unit which is provided to separate from one another—at least during operation—a part region of the workpiece surface provided for the processing and an adjacently arranged part region of the workpiece surface, whereby the shield unit has at least one blocking nozzle which is provided to generate a fluid flow for separating the at least two part regions wherein the blocking nozzle is positioned such that the fluid flow flows along the workpiece surface and the blocking nozzle is directed to the part region between two cylinder bores. 
     
     
         2 . A processing apparatus in accordance with  claim 1 , wherein the at least one blocking nozzle is configured as a compressed air nozzle. 
     
     
         3 . A processing apparatus in accordance with  claim 1 , wherein the blocking nozzle is provided to generate a flat jet. 
     
     
         4 . A processing apparatus in accordance with  claim 1 , further comprising a torch for processing the workpiece surface. 
     
     
         5 . A processing apparatus in accordance with  claim 4 , wherein the fluid flow which can be generated by way of the at least one blocking nozzle is provided for deflecting a torch jet of the torch. 
     
     
         6 . A processing apparatus in accordance with  claim 4 , wherein the blocking nozzle and the torch are arranged at angle toward one another between 80 degrees and 150 degrees. 
     
     
         7 . A processing apparatus at least in accordance with  claim 4 , wherein the blocking nozzle and the torch are arranged at angle toward one another of approximately 180 degrees. 
     
     
         8 . A processing apparatus at least in accordance with  claim 4 , wherein the at least one blocking nozzle can be positioned relative to the torch. 
     
     
         9 . A processing apparatus at least in accordance with  claim 4 , further comprising a second blocking nozzle is provided to be arranged opposite the blocking nozzle with respect to the torch. 
     
     
         10 . A processing apparatus at least in accordance with  claim 4 , wherein a support unit for the torch is utilized which has a support axis which is directed at least substantially perpendicular to a main expulsion direction of the at least one blocking nozzle. 
     
     
         11 . A processing apparatus in accordance with  claim 8 , further comprising a control unit for controlling the at least one blocking nozzle and which is provided to activate and/or to deactivate the blocking nozzle in dependence on an alignment and/or a position of the torch. 
     
     
         12 . A method of processing a workpiece surface in form of an internal coating of cylinder bores which are arranged in a row, wherein a part region of the workpiece surface provided for the processing and an adjacently arranged part region of the workpiece surface are separated from one another at least during operation, whereby a fluid flow for separating the at least two part regions is generated by at least one blocking nozzle wherein the blocking nozzle is positioned such that the fluid flow flows along the workpiece surface and the blocking nozzle is directed to the part region between two cylinder bores.