| 摘要 |
Regenerative heat exchange apparatus (12) for the transfer of heat from a heating fluid (hot gas) to a fluid to be heated such as air. Valve means (16-A, 18-A, 22-A, 24-A) control the flow of heating fluid and the fluid to be heated to and through their respective ducts in the heat exchanger. A bypass duct (38) reversely directs heating fluid through the heat exchanger (12) to displace heated air trapped therein after the valve (24-A) controlling the air supply has been closed.
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