发明名称 |
Pneumatic temperature difference switch - has contacts joined by mercury droplet in U=tube joining two sensors, esp. for solar installation |
摘要 |
<p>The switch has two sensors (1,6) connected together by an insulating tube (4) filled with gas (pref. air). The tube is U-shaped and has a mercury droplet (5) at its lowest point. The mercury droplet connects two contacts (7,8) in an electrical circuit. One contact is in the left-hand limb and the other in the right-hand limb of the tube. One sensor (1) is located in a cell (2) mounted on a window (3) and heated by solar radiation passing through the window. This sensor is a bellows (pref. made of metal) whose volume can be changed by a setting screw (9). The second sensor (6) consists of a closed chamber.</p> |
申请公布号 |
DE3017734(A1) |
申请公布日期 |
1981.11.12 |
申请号 |
DE19803017734 |
申请日期 |
1980.05.09 |
申请人 |
L.V.U.-LIZENZVERMITTLUNGS-UND UNTERNEHMENSBERATUNGS-GESELLSCHAFT MBH |
发明人 |
BALK,WILFRID,PROF. |
分类号 |
G05D23/275;H01H29/28;(IPC1-7):05B1/02 |
主分类号 |
G05D23/275 |
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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