| 摘要 |
PURPOSE:To enable detection of fuel injection timing irrespective of noise vibration by marking a clamp pulley of flywheel at predetermined angle behind the top dead point and making the injection detecting signal laggable to said angle. CONSTITUTION:The newly provided top dead point mark 13 is ATD mark marked at the angle (a) from the top dead point 12 to emit light from a timing light 10 such that the mark 13 and the fixed side mark 14 of engine block will be matched. The operator will operate the dial in variable lag setting circuit to delay the pulse such that the marks 13 and 14 will be matched. An operating circuit will read the resistance voltage corresponding with the dial level and conver to a time TC. The operating circuit will also read the delay time TB due to integration for removing noise to add TC and TB thus to calculate the time upto ATD mark from actual fuel injection starting time. |
