| 摘要 |
PURPOSE:To control the fuel to an optimum viscosity and further remove the shock due to the temperature by providing a fuel viscosity detector in a program temperature adjusting device upon changeover of the fuel supplied to a marine internal combustion engine, and determining the program termination point by the set viscosity. CONSTITUTION:The fuel is supplied to the engine 10 from a tank 1 for storing A-heavy oil of a low viscosity for use in starting and stopping the engine, and a tank 2 for storing C-heavy oil of a high viscosity for use in navigation. In a case of changeover from A-heavy oil to C-heavy oil, when a changeover switch 13 is changed over to C-side, the program temperature adjusting meter 15 sends a temperature raising signal to a heater 6. When the temperature reaches the set temperature of C-heavy oil, the changeover valve 3 is changed over to C-side by an actuater 4, to maintain the temperature at a predetermined value. When the detected viscosity of the fuel reaches a set value with the incream of C-heavy oil, the temperature is again made coincident with the set value. Upon this time, the program is terminated. By this procedure, the fuel can be controlled to an optimum viscosity. |
