FUEL FILTER, FUEL FILTER CLEANING SYSTEM, AND FUEL FILTER CLEANING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a fuel filter, a fuel filter cleaning system and fuel filter cleaning method capable of sufficiently burning down an ester compound accumulated on a filter element of the fuel filter of an internal combustion engine.SOLUTION: A fuel filter 10 has a filter element 11, in a filter case 12, which filters fuel F of an internal combustion engine. In the fuel filter, a portion or a whole of a fuel flow passage 13 to send the fuel F to the filter element 11 is arranged along inner walls 14 of the filter case 12 and a heater 20 is installed on a portion or a whole of the inner walls 14, facing the fuel passage 13, of the filter case 12.SELECTED DRAWING: Figure 1