发明名称 |
Electric storage heating apparatus |
摘要 |
An electric heat storage apparatus comprises an electric heating element, a ceramic heat storage pipe, an air passageway in communication with the pipe, and a thermostatically controlled air circulation means. The ceramic pipe has a scalloped-shaped outer surface providing a plurality of crests and troughs and a series of parallel grooves cut in at least some of the crests. The heating element is located in the grooves in contact with the pipe. In a preferred embodiment, the pipe is provided with a plurality of internal ribs of at least two different lengths. The pipe is supported on a ceramic cradle and a ceramic sponge or metal turnings are inserted into the pipe between the ribs to increase the heat transfer area.
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申请公布号 |
US4395620(A) |
申请公布日期 |
1983.07.26 |
申请号 |
US19810237573 |
申请日期 |
1981.02.23 |
申请人 |
CLYDE, ROBERT A.;CRANDALL, WILLIAM B. |
发明人 |
CLYDE, ROBERT A.;CRANDALL, WILLIAM B. |
分类号 |
F24H7/04;(IPC1-7):F24H7/00;H05B3/00 |
主分类号 |
F24H7/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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