| 摘要 |
An internal combustion engine has at least one cylinder, which is separated by a single dual-piston into two sub-chambers. The single dual-piston fulfills the role of two conventional pistons in its linear back and forth motion along the combustion chamber by using both its front and back surfaces as an element of a combustion chamber within the cylinder. Lubrication of the horizontally oriented engine distributes the oil into a space within the cylinder surrounding the middle of the dual-piston. The oil pump cycles oil to the required parts of the engine to an oil sump and back to the space.
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