What is the cold start injector (Dieselpartsworld) 2016-02-28    

What is the cold start injector
Network technology of automobile maintenance on 10-28 Wednesday, the classification of automobile engine structure and maintenance detection
Cold start injector installed in the intake duct, its function is in the injection during the cold start of the engine, with rich mixture, improve the engine cold start performance.
Since the cold start injector to spray in the inlet duct, there are shortcomings of the oil tank and the current development trend is canceling the cold start injector, by each cylinder injector complete cold start injector task, namely through asynchronous injection to improve engine cold starting performance, it not only can make the uniformity of the fuel tank, reducing control system components (cold start injector) and the circuit is simplified.
Cold start injector
Cold start injector.
Is when the cold engine starting when the fuel is injected into the intake duct, increase the concentration of mixed gas, then start the car.
Cold start injector circuit.
Mainly by starting circuit, cold and hot injector timing switch is composed of three parts.
Cold start injector control circuit
Thermal time switch
Function is the control of cold fuel injector fuel injection time.
Inside a winding coil electrothermal double sheet metal, it according to the temperature control contact opening and closing, changing temperature conditions have two: is the water temperature, the second is electric wire.
For example: at -20 DEG C, the largest open duration is 7.5S, with the temperature rise, open duration will decrease gradually when the temperature reaches 35 DEG C, the switch has been turned on, the fuel injector fuel injection stop.