| 摘要 |
A two-cycle free piston engine which is adapted to burn various types of fuel but is particularly adapted to burn gaseous fuel. It introduces the fuel through at least one hole in the side wall of at least one cylinder at a location inwardly of the cylinder air intake and exhaust ports so as to be closed by the power piston at a time or position before the compression pressure in the power cylinder is equal to the injection pressure and also not before the valving system has interrupted the fuel flow. This advantageously keeps the fuel admission controls out of the hottest portion of the cylinder's combustion chamber, gives safer and better mixing of fuel and air and prevents blow back of fuel in the fuel supply line.
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