Spark Plug Diagram

Spark Plug Diagram - The flame propagation stage is from spark ignition to the crank angle of CA ko (the onset of pressure oscillation), reaching the value of P ko.The heat release rate shows an increasing tendency generally during this stage, with possibly a short term drop caused by the downward movement of the piston and heat transfer.. Reading Spark Plugs. Thanks to Larry Meaux of Meaux Racing for providing this information and pictures. This is only valid if you shut-off the engine after the finish line then tow the car back to the pits where you remove the plugs for reading !!. The percent of time that the signal is on is called its duty cycle. PWM is used to limit current to low impedance fuel injectors, as well as for some idle air control valves. Required Fuel – (Req_Fuel) The injector pulse width, in milliseconds, required to supply the fuel for a single injection event at stoichiometric combustion, 100% volumetric efficiency and standard temperature..

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