| 摘要 |
An overpressure safety apparatus having a fuel container body and a mounting cap includes a main housing coupled to the mounting cap, the main housing having an elbow-shaped gas introducing passage, a valve stem disposed in the main housing through the mounting cap. The valve stem is provided with an orifice, an opening/closing seal inserted between a top of the main housing and the mounting cap to selectively open/close the orifice of the valve stem. A sub-housing is connected to a bottom of the main housing, and has a branch line communicating with the gas introducing passage and a receiving cavity with a bottom communicating with the branch line and a top communicating with an exhausting hole formed on the mounting cap. A safety valve is disposed in the receiving cavity to selectively open the branch line in response to variations of internal pressure of the container.
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