In the piston machine of the present invention, {HEAD ~ the interior} of {TAIL ~ the crankcase} is used as a third working chamber 
of
In the piston machine of the present invention , { HEAD ~ the interior } of { TAIL ~ the crankcase } is used as a third working chamber
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH