| 摘要 |
<p>1,087,520. Cooling reactors. SULZER BROS. Ltd. Sept. 26, 1966 [Sept. 24, 1965], No. 42798/66. Heading G6C. In an integral gas-cooled reactor enclosed in a concrete vessel the reverse flow of coolant through a fan is prevented. Each fan has a radial outflow duct system provided with flaps which are maintained open during normal flow but which close if the flow is reversed due to fan failure. The flaps may be closed by either gravity or springs.</p> |
