| 摘要 |
<p>A heater (10) includes a handle (14), a combustion chamber (12), a valve (20) and a thermal controller (70). A reservoir for fuel can be installed in the handle (14). The combustion chamber (12) is mounted on the handle. The valve (20) is received in the handle (14). The valve (20) defines a passage through which fuel can flow from the reservoir into the combustion chamber (12) for combustion. The thermal controller (70) includes a memory element (73,74) at least partially received in the combustion chamber and a rod (72) connected between the memory element and the valve for controlling a rate at which fuel can flow through the passage defined in the valve based on the temperature in the combustion chamber. The memory element (73) is a helical memory metal element. The memory element shrinks or expands when the temperature increases above a certain value.
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