| 摘要 |
A rotational engine structure is disclosed. The rotational engine comprises a cylinder seat body, a cylinder seat, a piston and a cap body. The interior of the cylinder seat body is an oval rail having a hole for the shaft of the cylinder seat to pass through. The cylinder seat has two parallel circular paths having an air hole. A valve body is provided to the air hole, and the top section of the cylinder seat is a cylinder seat cover and the piston is positioned within the two paths. The external end face of the piston is a recess for mounting to a rotating wheel.
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