| 摘要 |
<p>PROBLEM TO BE SOLVED: To heat heating fuel to the limit of a fire point without using a special device for controlling a temperature. SOLUTION: A heating device 7 for heating fuel for injection is disposed on a fuel injection part of a fuel injection device 1. In the heating device 7, a PTC element 8 is used as a means for heating fuel, and is housed in a housing body 10 fixed to a valve body 3 of the fuel injection device 1, and a high pressure fuel is directly heated by the PCT element 8. When the PTC element 8 attains a constant temperature, a specific resistance is increased, raising of a temperature is stopped, and thereby, a sensor for controlling a temperature of fuel to the lower limit level from a fire point and a control means are eliminated. It is also possible to reduce the number of part, and improve assemblability.</p> |
