| 摘要 |
PURPOSE:To set injection lead angle control quickly through timer mechanism, in a fluid pressure type timer mechanism for controlling the fuel injection timing, by circulating the low temperature pressure fluid to be fed to said mechanism through solenoid valve mechanism and warming the machine. CONSTITUTION:Pressure fluid is fed from an oil feed system 37 having solenoid valve mechanism 14 comprised of solenoid valves 35, 36 through piping 34 into the hollow section 32 formed in the operating shaft 22 of timer mechanism 15. Fluid 39 in a tank 38 is pressurized by a pump 40 and fed as pressure fluid through the solenoid valve 35 and piping 34 into the hollow section 32 thus to function the piston 29. Upon simultaneous opening of said valves 35, 36, fluid pressurized by said pump 40 is returned through solenoid valve 36 into the tank 38. Here, a restrictor 41 is provided between the solenoid valve mechanism 14 and the piping 34 to restric flow to the timer mechanism 15 under circulation of flow where said valves 35, 36 are opened simultaneously. Consequently, injection lead angle corresponding with the position of piston 29 can be set by an operational controller 13. |
