4 ms·
It's fine. Even my weed trimmer is 4-stroke. Aircraft engines, which really need to have a great power to weight ratio, are normally 4-stroke. For small things
by burfog 8y ago
It's fine. Even my weed trimmer is 4-stroke. Aircraft engines, which really need to have a great power to weight ratio, are normally 4-stroke.
For small things, the only place that seems to justify 2-stroke is a chainsaw. This is partly because weight matters much more, and partly because a chainsaw is held at many different angles. Oil flow in a 4-stroke engine is difficult when you can't rely on gravity going in any particular direction.
Given that the whole point of a leaf blower engine is to move air, I have to wonder if the best solution might be a turbine.
- giardini 8y agoThat's a great idea! Now if you'll just design an inexpensive turbine that won't fly apart catastrophically at 10,000-50,000 rpm, twist your hand off due to gyroscopic forces, and is easy-to-start w/o first spinning up to 5,000 rpm, we're set to go! Best bet: electric corded (120 Volts AC) leaf blowers: cheap, powerful, reliable, light and easy to maintain. No danger of battery fire/explosion due to abuse/age.
- simcop2387 8y agoThe startup issue might be mostly solved these days with cheap lithium batteries and brushless dc motors. That said you still have the turbine issue and the fact that it'll be much much louder.