| 摘要 |
PROBLEM TO BE SOLVED: To correctly control a fuel injection timing to an optimal injection timing, in an injection timing control device for controlling a fuel injection timing of a diesel engine. SOLUTION: A feed pump 86 is arranged so as to feed fuel into a fuel chamber 92 serving a rotary torque of a crank shaft 66 as a power source. A plunger 118 is arranged to forcibly feed fuel in synchronism with a pump rotary angleθp. A timer device 140 provided with a high pressure chamber 146 communicated with the fuel chamber 92, a low pressure chamber 144 which is held to a determined low pressure, and a timer control valve(TCV) 150 for controlling a conductive condition between both chambers 146, 144, is arranged for changing a relative relation between the pump rotary angleθp and a crank angleθc serving a pressure difference between the high pressure chamber 146 and the low pressure chamber 144. At least inner pressure in the combustion chamber 92 attains prescribed pressure, the TCV 150 is controlled so as to reflect engine speed.
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