| 摘要 |
An apparatus for releasing excessive pressure from a cylinder of an internal combustion engine comprises a sealing element inserted into a passageway that extends from an internal surface of the cylinder through the engine block or cylinder head to end at a point of ambient air pressure. The sealing element is thermally responsive and will release to cause the passageway to form a vent passage between the cylinder and the ambient air upon the occurrence of any one of a number of conditions of excessive pressure and temperature in the cylinder.
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