FIG 3A illustrates {HEAD ~ a simple means} wherein {TAIL ~ bars} 205 are exposed directly to the fluid, but seal 305 between bars 205 and motor 150 prevent working fluid 130 from entering motor 150 
wherein
FIG 3A illustrates { HEAD ~ a simple means } wherein { TAIL ~ bars } 205 are exposed directly to the fluid , but seal 305 between bars 205 and motor 150 prevent working fluid 130 from entering motor 150
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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