| 摘要 |
A compact free piston engine of the unsymmetrical type including a structure with a cylinder (11) detachably supported therein, said cylinder having a pair of pistons (12 and 13) with a combustion chamber (14) therebetween and each piston having a rod (15 and 18) extending through the adjacent end of the cylinder and having motion reversing means (20, 22, 23, 22a, 23a, 24, 25, 27, 28, 17) at one end of said cylinder and extending between said rods. Preferably, the structure is of strong but light-weight construction. It may have a skeleton type of housing (10) with bolt type columns (110) spaced around the cylinder. Portions of the reversing means (27, 28) lie along the side of the cylinder while another major portion (20, 22, 23, 22a, 23a, 24, 25) thereof lies beyond one end of the cylinder. An energy absorbing device or devices may be connected to one only (18a) or to each of the rods (18a, 118a), and each rod will be driven simultaneously in an opposite direction to the other by both pistons.
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