| 摘要 |
A generally u-shaped fire ring is configured to receive and form a seal with a protrusion of a cylinder wall liner that extends above a surface of an engine block. The fire ring is configured to be inserted into an annular groove in a cylinder head. When the cylinder head is mounted onto the engine block, the fire ring is in the annular groove where the stepped regions of the outside surface of the fire ring forms a seal with the walls of the annular groove and the protrusion of the cylinder wall liner forms a seal with the non-stepped regions inside of the fire ring.
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