Advance timing mechanism of dispensing type fuel injection pump for diesel engine

摘要

By suppressing the twisting of the timer spring during the operation of the injection timing advance mechanism, the self-holding force of the timer piston is accurately maintained from the initial position to the maximum advance angle, thereby accurately compensating the injection delay and the ignition delay.;To this end, the injection timing advance mechanism of the present invention is provided with a spring seat 31 on one side of the timer spring 15 in contact with the timer piston 7, and the boss 35 protruding from the cover 33 on the other side. It consists of a technical configuration installed.;Therefore, the torsion of the timer spring is absorbed and suppressed by the spring seat and the boss serving as the guide, and the holding force of the timer piece is accurately maintained from the initial position to the maximum advance. In addition, vibration of the advance mechanism is prevented, and the compensation effect of the injection delay and the ignition delay is improved.