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free piston engines


Free piston engines could dramatically improve efficiency of ER-EVs

Over the last century and a half engineers and designers have created a wide array of different combustion engine designs. In spite of certain inherent advantages of some of these designs, the traditional four stroke reciprocating engine has continued to dominate the transportation space. Many of these alternatives have worked in principle but have never been adopted for several reasons. The most important reason is typically the problem of converting the chemical energy of combustion into rotating drive torque to turn the wheels. This has ... Read more →

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