{TAIL ~ Other movements} of the auxiliary piston provide the advantages of {HEAD ~ low pressure internal supercharging}, and minimizing the retarding effect on the working piston by the compressive forces within the combustion chamber 
{ TAIL ~ Other movements } of the auxiliary piston provide the advantages of { HEAD ~ low pressure internal supercharging } , and minimizing the retarding effect on the working piston by the compressive forces within the combustion chamber
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD 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