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Author Topic: Alexander US Patent 3913004 Increases Electrical Power From Rewound Alternator  (Read 1220 times)

russwr

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  See Internet color chart pictures of all Briggs lawn mower alternators .The Briggs riding lawnmower engine alternators are of two types. The full plastic surround ring of one full wire coil , or 2 coils- each in 1/2 side of ring circle. (2 curves) The Alexander Patent refers to 2 separate windings wound same time next to each other. It would be easy to redo a used Briggs alternator Ring so as to prove the Patent as valid. You will need quality LOW ohms resistance meter and SS vernier caliper, wire cutters, scraping knife, wire sizes chart,  etc. Assume #12 gauge diameter to start, but 2 wires as wound together same time.  Remove and count number of turns on used alternator ring. They are overlapped as going around.Wind count of turns on 2 poles in succession, then wind next 2 poles opposite way for AC output. (over then under)The crankshaft provides the turning movement of strong magnets around the stationary ring . The embedded 12 magnets on inside of flywheel are of two types- small or large for more power. See pictures of each flywheel on E bay for size comparison. I purchased the 17HP type flywheel with visual large magnets. Insulated Magnet wire gauges are purchased on E bay. The four ends of 2 wires can be hooked to bridge rectifier for output current. The Patent states the wires 2 diameters in ratio of 3:1 and add up the the size of original single wire diameter, as tested with vernier caliper. Induced current comes out one wire. Induced current comes out other wire. The first wire induces into 2nd wire for OVER ALL INCREASED power output. Car alternators require amps to run the field coil. The lawnmower alternator is self powered - no input current from battery.  (similar to magneto effect of ignition coil that runs by one magnet on outside of Briggs flywheel. The internet has chart showing the array of types of Briggs alternators. Many are transferable, just like the flywheels. The largest amps was the 2 yellow wire type, which is same as the 2 black wire type since the ohms resistance is the same, but the double black one is less money. - marketing advertising to overcharge consumers for the yellow wires alternator. In some engine hook ups, one set  of the the two ends are grounded under flywheel, while others have both ends facing out and available for full wave rectification. The alternator cables and connector always hang down on left side of Briggs 12v starter motor. Just remember- if changing from aluminum flywheel ring gear on flywheel to steel ring gear on different flywheel, The "small" gear on starter motor has to be change from plastic to steel small gear to match flywheel with steel casting. Alexander had originally used his modified old style motor/generator with belt drive so as his small kit car would run with more power- the 2 rear wheels turned using "air" motors fed from air compressor mounted behind front seats. Battery hooked to compressor motor with single or dual pulley that turned his special alternator for DC charger. The extended shaft of the new generator also provided more torque.

bistander

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  See Internet color chart pictures of all Briggs lawn mower alternators .The Briggs riding lawnmower engine alternators are of two types. The full plastic surround ring of one full wire coil , or 2 coils- each in 1/2 side of ring circle. (2 curves) The Alexander Patent refers to 2 separate windings wound same time next to each other. It would be easy to redo a used Briggs alternator Ring so as to prove the Patent as valid. You will need quality LOW ohms resistance meter and SS vernier caliper, wire cutters, scraping knife, wire sizes chart,  etc. Assume #12 gauge diameter to start, but 2 wires as wound together same time.  Remove and count number of turns on used alternator ring. They are overlapped as going around.Wind count of turns on 2 poles in succession, then wind next 2 poles opposite way for AC output. (over then under)The crankshaft provides the turning movement of strong magnets around the stationary ring . The embedded 12 magnets on inside of flywheel are of two types- small or large for more power. See pictures of each flywheel on E bay for size comparison. I purchased the 17HP type flywheel with visual large magnets. Insulated Magnet wire gauges are purchased on E bay. The four ends of 2 wires can be hooked to bridge rectifier for output current. The Patent states the wires 2 diameters in ratio of 3:1 and add up the the size of original single wire diameter, as tested with vernier caliper. Induced current comes out one wire. Induced current comes out other wire. The first wire induces into 2nd wire for OVER ALL INCREASED power output. Car alternators require amps to run the field coil. The lawnmower alternator is self powered - no input current from battery.  (similar to magneto effect of ignition coil that runs by one magnet on outside of Briggs flywheel. The internet has chart showing the array of types of Briggs alternators. Many are transferable, just like the flywheels. The largest amps was the 2 yellow wire type, which is same as the 2 black wire type since the ohms resistance is the same, but the double black one is less money. - marketing advertising to overcharge consumers for the yellow wires alternator. In some engine hook ups, one set  of the the two ends are grounded under flywheel, while others have both ends facing out and available for full wave rectification. The alternator cables and connector always hang down on left side of Briggs 12v starter motor. Just remember- if changing from aluminum flywheel ring gear on flywheel to steel ring gear on different flywheel, The "small" gear on starter motor has to be change from plastic to steel small gear to match flywheel with steel casting. Alexander had originally used his modified old style motor/generator with belt drive so as his small kit car would run with more power- the 2 rear wheels turned using "air" motors fed from air compressor mounted behind front seats. Battery hooked to compressor motor with single or dual pulley that turned his special alternator for DC charger. The extended shaft of the new generator also provided more torque.

Hi russwr,
I don't know what you're describing, but that patent is for a motor generator utilizing a common armature core, much like the Redi-Line converters. Ref
https://www.kollmorgen.com/en-us/products/motors/brush-dc/serviced-motors/redi-line/redi-line-power-conversion-generators.

I have one. For many years. Has come in handy a few times where a solid state unit would not work. Reliable old tech.
bi

dzetta

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