| 摘要 |
An engine assembly including a piston for rectilinear reciprocation within a cylinder. Rectilinear reciprocation of the piston allows for a sealing off of a fuel chamber such that fuel may be maintained and delivered to a combustion chamber independent of any lubrication oil to be employed at the interface of the piston and an inner wall of the cylinder. Additionally, the piston may be considered self-lubricating or monolithic in nature due to the presence of passageways for transferring engine fluids therethrough.
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