| 摘要 |
A free piston engine is provided which has a pair of opposed piston units mounted for reciprocation in a cylindrical sleeve. The engine has a large combustion chamber between the piston units and a small combustion chamber at each end of the sleeve. The arrangement provides for compression within the large chamber as a result of the simultaneous firing of explosive charges within the small chambers and, conversly, compression within the small chambers as a result of the firing of an explosive charge within the large cylinder.
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