The motor further comprises a piston assembly placed through a hole of {TAIL ~ the buried magnet system} and operatively connected to {HEAD ~ the buried magnet system} 
The motor further comprises a piston assembly placed through a hole of { TAIL ~ the buried magnet system } and operatively connected to { HEAD ~ the buried magnet system }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD