| 摘要 |
An internal combustion engine (1010 or 2000) is provided. The internal combustion engine includes a housing (1013 or 1068) and a piston assembly (6 , 1012, and 2038) disposed on the housing: The piston assembly is substantiall y stationary relative to the housing. A cylinder (1, 1014, and 2040) is movabl y disposed within the housing. A combustion chamber (20, 1033, and 2064) is disposed between the piston assembly and the cylinder.
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