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I don't understand this, isn't most of the noise coming from the air and not the engine in the leaf blowers?
by kristofferR 2y ago
I don't understand this, isn't most of the noise coming from the air and not the engine in the leaf blowers?
- dmd 2y agoNo. Nearly all of it is the engine.
- xxs 2y agoI don't believe that part - the ones shown in the picture/videos are brushless motors, quite efficient (90%) and really silent on their right own. The noise comes from the need to move air (and the noise is just air waves), along with certain vibrations. A brushless motor is super silent if you exclude the fan(s) cooling it.
- lupire 2y agoElectric doesn't have engine. It has a motor. Gas has an engine.
- dmd 2y agohttps://engineering.mit.edu/engage/ask-an-engineer/whats-the-difference-between-a-motor-and-an-engine/ https://engineering.mit.edu/engage/ask-an-engineer/whats-the... by the way...
- dmd 2y agoWhich is why I said engine, not motor.
- bluGill 2y agoThe topic is an electric leaf blower though. While a gas leaf blower is louder the difference isn't as most of the noise is the blower.
- alamortsubite 2y agoIt's both. This design focuses on quieting the airflow. From TFA: The team started working last September. They hoped to improve an electric or battery-powered leaf blower, which is already much quieter than the notorious gas-powered ones, where the sound can carry over an average suburban block.