| 摘要 |
<p>For the purpose of heating diesel fuel (or possibly another electrically nonconductive fluid) use is made of an arrangement which comprises a heating chamber (2), a feeder (3) of fuel to the heating chamber (2), a discharge (4) of fuel from the heating chamber (2), at least one tablet (7) of PTC material, to bring the diesel fuel flowing through the heating chamber to the desired temperature, and contacts (9, 10) to pass an electric current through the said tablet. The PTC tablet is supported in such a way within the heating chamber (2), that the major portion of the tablet, without the interposition of a heat sink, is able to come into contact directly with the fuel stream. The flow ducts between the largest surfaces of the tablet (7) and the wall of the heating chamber (2) have a height of at least 0.1 mm. <IMAGE></p> |
