For {HEAD ~ an arrangement} of {TAIL ~ the elastic elements} substantially radially outside of the impeller wheel, the first driving device extends beyond this impeller wheel 
For { HEAD ~ an arrangement } of { TAIL ~ the elastic elements } substantially radially outside of the impeller wheel , the first driving device extends beyond this impeller wheel
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH