| 摘要 |
<p>A heating device for fuel, in particular to prevent solidification of paraffin constituents in diesel oil, comprises a housing (1) with an inlet (14) and an outlet (15) for the fuel, and a number of metal plates (3, 4) inside the housing. Tablets (5) made of a material with a positive temperature coefficient (PTC) are fastened on the metal plates so that heat and electricity is conducted. To improve the heat transfer one or more turbulators (6; 6a, 6b) are placed between two of the above mentioned metal plates (3, 4) provided with PTC tablets. Passages (16, 17) are present to make the infed fuel flow from the inlet (14) over the first metal plate, through a turbulator and over the second metal plate to the outlet (15).</p> |
