A reservoir 1, wherein {TAIL ~ the tank} comprises {HEAD ~ a high portion} in communication with the at least one oil outlet conduit and a low portion in communication with the at least one oil inlet conduit 
A reservoir 1 , wherein { TAIL ~ the tank } comprises { HEAD ~ a high portion } in communication with the at least one oil outlet conduit and a low portion in communication with the at least one oil inlet conduit
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH