A successful conversion of a small mower engine to run on water in carburetor, is based on several actions at the same time. The ignition type has to be inductive ignition, not capacitor discharge ignition. This means the amps flowing through the spark plug must be from a DC power supply. The speed of CDI is too fast for proper contact with water molecules to MAKE hydrogen gas and water vapor pressure. The current has to be low, so as the tiny tips of plugs don't get burned out. The best setting was called 6-7 amps DC pulse according to S1R9A9M9. Nathren , in 2005-2012 worked with the 2 technicians in the shop for testing building alternate energy related set ups. Ignition primary wires can be switched around to get the opposite output polarity high volts. One man was his son who had the same name. They both contributed tech data on the previous website that is now closed down. So you have either positive or negative high voltage, diodes facing proper direction, proper resistance in circuit based on OHMS Laws, time delay lines added for way late retarded timing to -34 degrees, required magnetic field that travels down to plug tips ,and 6-7 amps DC current. The high volts pulse is NOT good enough to provide a proper PLASMA PATH for the expected current to pass through plugs. What is used is an added small circuit that has a SMALL capacitor charged with about 200v DC against a blocking 15kv FAST diode , hooked to the capacitor output. The initial high V. pulse out, in split second ,sees a different path rather than the effort for the spark gap. It presses against the ON diode that abruptly shuts off , compressing the high volts against the diode , that then reverses back and fires spark plug.. It takes with it, the small cap discharge very fast, providing energy path for the waiting main current. The delay line is provided by wire turns over the plug wiring, and also an inductor coil of about 1.5Millihenry in the high volts line. The Briggs mower has preset non adjustable timing at TDC. The Mag field stretches the firing time out to -34 degrees along with the the extra L coil.(see data on the S1R9A9M9 triple wire coils assembly that has several purposes same time). The MAIN power supply is to be called ISOLATED grounds, as is done with an Inverter box with a transformer separate secondary side with output single diode for about 45 volts pulsing half wave DC output. No filter capacitor. Output has to go through a safety series bank of 15kv total protection diodes . This short length series diode bank rests vertically on horizontal 80mm 12v fan .3amp, with see through plastic shroud. The heat released is blown upwards away from the diodes. Either FR607 with dual set screws European type wire terminal connectors, or fast flat plastic DTV32F plastic damper diodes on narrow aluminum heat sink. The inverter isolation separates the battery ground with the output power ground. The miniature added P.S. is a 150 watt 20khz open board inverter with fast bridge rectifier you add on. Two output.wires are soldered to the appropriate terminals for 200v AC. .The high volts sees the 2 diodes in the bridge through the ON 15Kv diode. It wants to bypass the plug gap effort, by going different route seeking the opposite high V polarity terminal. But the microwave diode stops it, and reverses back to plug. This technique is US Patented, US8555867B2 and has this output diode added to the capacitor that is on a regular type CDI . The left over energy, from firing Primary of ignition coil , goes through high volts diode along and goes with with the high voltage that fires plug. (Just firing ignition does not allow extra main energy current to pass to plugs. ) The small board power has to have enough watts and current to keep recharging the minimum 45uf 400v cap in between firings. The MAIN extra energy comes from the Inverter power supply. The ignition voltage has to be extended in time of milliseconds for more contact with the water. The CDI type deals with microseconds. The 15KV diode is said to also release RADIANT ENERGY that travels down to the combustion chamber. Tesla worked with this and had written about other special circuits for that purpose. See data on Tesla Hair Pin circuit that has extra spark gap and 2 capacitors output that releases radiant Energy. The earlier Georgia S1R9A9M9 car conversions all used special dual coils relay per cylinder, and they were IN VACUUM. I just assumed that the radiant energy if provided, was enclosed and not lost in the air, so as it would travel with the circuit all the way to spark plugs. They had diode, coil, diode, coil , diode to output. The high volts came in after the 2nd diode. Th L coil charge from inverter was in front of the 2nd diode. They called them the "Magic Relays'. The required magnetic field came from them and traveled down the wire. (Also, a North + South neodymium magnetic ring type magnet fits over a steel spark plug and field is also there at the tips in combustion chamber-just another idea.
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