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What is claimed is:1. A Diesel engine diagnosing device, comprising:
a transducer to convert the time-change of an injection pressure occurring in the fuel injection system of a Diesel engine into an electrical signal;
a first pulse generator to produce first pulses which are generated so as to have a predetermined duration when the primary components of the output electrical signal from said transducer build up;
a second pulse generator to produce second pulses which are generated when triggered by the leading edges of said first pulses and which can be set for a desired mark-space ratio;
an electronic flash emitter which flashes when triggered by the trailing edges of said second pulses;
a first marking provided on the stationary part of said Diesel engine;
a second marking provided on the rotary part of said engine so that said second marking is in an angular position which coincides with the angular position of said first marking when the crankshaft of the Diesel engine is in a predetermined angular position, and;
an injection timing indicator which displays the integral value of the output signal from said second pulse generator.
2. A Diesel engine diagnosing device according to claim 1, wherein said first pulse generator comprises:
a comparator which compares a signal level generated from said transducer with a predetermined reference level;
a trigger pulse generator which differentiates the output signal produced from said comparator, and;
a monostable multivibrator which is triggered by trigger pulses produced by said trigger pulse generator when said primary injection pressures build up.
3. A Diesel engine diagnosing device according to claim 2, wherein the duration of each of the first pulses is preferably set to be longer than the period from the moment of the building-up of the primary injection pressure until the level of a pressure caused by the injection pressure components other than the primary injection pressure contained in the output signal from the transducer is reduced to a level lower than said reference level.
4. A Diesel engine diagnosing device according to claim 1, wherein said second pulse generator comprises;
a differential circuit which differentiates said first pulses;
means for rectifying the output signal produced from said differential circuit;
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a monostable multivibrator which is triggered by said output signals, and;
means for changing the mark-space ratio of the pulse signals produced from said monostable multivibrator.
5. A Diesel engine diagnosing device according to claim 4, wherein said first pulse generator further comprises:
a correcting circuit which corrects the pulse width of the output pulses produced from said monostable multivibrator corresponding to the rotational speed of the engine so as to make the mark-space ratio of said second pulses constant without changing the rotational speed of the engine.
Diesel Kiki Fuel Pump
Diesel Kiki Injection Pump Parts