Combustion detection device with a thermoelectric generator
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United States of America Patent
Stats
-
Mar 28, 2006
Grant Date -
May 20, 2004
app pub date -
Nov 10, 2003
filing date -
Nov 13, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The apparatus (1,1′) for the detection of gas combustion in an domestic gas heater or a water heater is designed as an independent installation unit mounted on a shared support bracket (8,8′), provided with a thermoelectric generator assembly (4-6, 20-26) for supplying a safety valve (16) and a main gas valve (17) of the gas heater, generating two respective lower (Vb) and higher (Vd) voltages therefor. The thermoelectric assembly (4-6,20-26) heated by a pilot flame (3) is built up by means of one or two flat Peltier type p-n junction cells (4, 20-21), which are connected to a heat transmission element (5,25) licked by the pilot flame (3) and to a shared heat sink (6,22).
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