In the embodiment according to FIGS 2 and 3, {TAIL ~ the collector} 14 is {HEAD ~ a high pressure collector} 
In the embodiment according to FIGS 2 and 3 , { TAIL ~ the collector } 14 is { HEAD ~ a high pressure collector }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD