| 摘要 |
<p>The invention provides a flame failure device in which the reservoir exposed to the flame is charged with air and is communicated via capillary 40 (Figure 1) to displace diaphragm 36 and hold the valve in an open position, and the valve is closed by spring 22 when pressure falls as a result of the flame being extinguished. The system is re-charged via a one-way valve when pressure in the system falls below ambient pressure.</p> |
