The auxiliary rotor wheel 10 is also in {HEAD ~ this position} coupled with {TAIL ~ the compressor wheel} 8 is shown in the illustration of FIG 4, with the auxiliary rotor wheel 10 and the coupling element 26 being almost completely pushed together 
The auxiliary rotor wheel 10 is also in { HEAD ~ this position } coupled with { TAIL ~ the compressor wheel } 8 is shown in the illustration of FIG 4 , with the auxiliary rotor wheel 10 and the coupling element 26 being almost completely pushed together
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH