Difference between Yamaha & Honda Inverters
Quick question about engine displacement between the newer 2200 watt inverter generators. The Yamaha says 80cc and the Honda says 121cc. The Handa has 50 % more displacement than the Yamaha. If this i...
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You are partially correct. For a given CONSTANT torque, to get for horsepower, you do have to increase the RPM. I am sure you know that many internal design factors affect the torque generated at a specific RPM so we are not exactly comparing apples to apples.
The other "confusion factor" is that both of these are inverter generators. Inverter generators start by producing a high voltage (around 200V), variable frequency (for AC power, frequency varies with engine speed), 3 phase AC current, typically using permanent magnets. (3 phase AC is much more efficient than single phase.) This is then converted to high voltage DC, filtered and then inverted to a constant voltage, constant frequency inverter circuit.
I suspect the engine size used on those two generators had more to do with what size internal parts (piston, rods, crankshaft, block, etc) both companies already had in production for other equipment. The difference could be from the strength of the magnets, efficiency of the electronics or the power of the engine.
The Yamaha 2400, 2800 and 3000 inverter generators all use a 171cc engine !
The Honda EB2800i uses a 186cc engine, but the EU3000i uses a 163cc engine !
The other "confusion factor" is that both of these are inverter generators. Inverter generators start by producing a high voltage (around 200V), variable frequency (for AC power, frequency varies with engine speed), 3 phase AC current, typically using permanent magnets. (3 phase AC is much more efficient than single phase.) This is then converted to high voltage DC, filtered and then inverted to a constant voltage, constant frequency inverter circuit.
I suspect the engine size used on those two generators had more to do with what size internal parts (piston, rods, crankshaft, block, etc) both companies already had in production for other equipment. The difference could be from the strength of the magnets, efficiency of the electronics or the power of the engine.
The Yamaha 2400, 2800 and 3000 inverter generators all use a 171cc engine !
The Honda EB2800i uses a 186cc engine, but the EU3000i uses a 163cc engine !
