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Protective heater for fuel pipes - comprises strip of resistance material having temp.-dependent resistance attached directly to pipes
Protective heater for fuel pipes - comprises strip of resistance material having temp.-dependent resistance attached directly to pipes
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机译：燃油管保护加热器-包括电阻材料条，该电阻材料条具有直接依赖于温度的与温度有关的电阻
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摘要
The system for the protection of oil from freezing or gelling includes use of electric resistance heating elements along the fuel supply pipes. A self-regulating resistance strip is used, and is applied directly to the pipes, valves and filters. The strip has dimensions matching those of the pipes. The strip is made of a material having a temp.-dependent resistance, so that no other control is necessary, since the strip automatically adjusts its output power to the ambient conditions. The strip may be wrapped twice around a 12 cm valve, and three times around a 20 cm filter in order to deliver the appropriate power.
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