3000W Chinese Gensets Info.
professor95 wrote: EDIT ADDED 45/5/2013- When this thread started in March of 2005, I never expected to see it survive this long or amass the quantity of information that has been shared here. In...
Forum Discussion
Whether an electrolytic capacitor would help or not is dependent on load. You would need a significantly large cap to hold the solenoid - some about the size of a drink cup.
Vacuum switches are the norm for control in LPG systems. They work off of ported vacuum. Remember that little brass screw you asked about? That is a good ported vacuum source location. When you crank an engine enough vacuum is created to open a vac switch for a solenoid. If the engine stops for any reason, vac stops and solenoid closes.
Another method is to use an AC coil relay attached to the output. Again, sufficient voltage is created just by cranking to pull in most low current AC relays and open a solenoid. Of course, when the engine cuts off it will hold until the alternator output drops as well.
You will also find a small voltage created by the coil (not the plug wire) that goes to the "transition diode". You can use this voltage to fire an optical isolator circuit for a solid state relay type control.
Vacuum switches are the norm for control in LPG systems. They work off of ported vacuum. Remember that little brass screw you asked about? That is a good ported vacuum source location. When you crank an engine enough vacuum is created to open a vac switch for a solenoid. If the engine stops for any reason, vac stops and solenoid closes.
Another method is to use an AC coil relay attached to the output. Again, sufficient voltage is created just by cranking to pull in most low current AC relays and open a solenoid. Of course, when the engine cuts off it will hold until the alternator output drops as well.
You will also find a small voltage created by the coil (not the plug wire) that goes to the "transition diode". You can use this voltage to fire an optical isolator circuit for a solid state relay type control.
