Students invent quieter leaf blower

If these truly sound that much better I'd personally buy every gardener in a 3 block radius one of these myself just to get rid of the bloody gas ones.

Re: Students invent quieter leaf blower

#5

Post by huhtenberg » Thu, May 16, 2024, 11:59 AM UTC

xxs wrote: post #3

maven29 wrote: post #2

Can't be quieter than a rake.

Unless you stumble on it. Other than that - leaf blowers are not used only in gardening work.

Yep, it's invaluable for getting your BBQ grill really going.

Re: Students invent quieter leaf blower

#6

Post by xxs » Thu, May 16, 2024, 11:59 AM UTC

Unfortunately the article is very poor on details. The sound from the video is insufficient to tell.

Personally, I'd be quite excited to see what are the changes engineering wise. I bet it'd make a proper addition to BOLTR.

I still can't see how it'd be much quieter, as lots of the noise is just the air moving (and making sound waves), perhaps less vibrations, different frequencies due to different rpm?

Re: Students invent quieter leaf blower

#7

Post by mccrory » Thu, May 16, 2024, 11:59 AM UTC

Now if we could solve this for the rest of the lawn equipment, especially mowers and string trimmers.

Re: Students invent quieter leaf blower

#8

Post by xxs » Thu, May 16, 2024, 11:59 AM UTC

TOMDM wrote: post #4

If these truly sound that much better I'd personally buy every gardener in a 3 block radius one of these myself just to get rid of the bloody gas ones.

That is battery (li-ion) powered, so it's already quieter to begin with.

Re: Students invent quieter leaf blower

#9

Post by xxs » Thu, May 16, 2024, 12:00 PM UTC

mccrory wrote: post #7

Now if we could solve this for the rest of the lawn equipment, especially mowers and string trimmers.

Lawn mower robots do the trick quite nicely actually.

Re: Students invent quieter leaf blower

#10

Post by planb » Thu, May 16, 2024, 12:01 PM UTC

xxs wrote: post #6

Unfortunately the article is very poor on details. The sound from the video is insufficient to tell. Personally, I'd be quite excited to see what are the changes engineering wise. I bet it'd make a proper addition to BOLTR. I still can't see how it'd be much quieter, as lots of the noise is just the air moving (and making sound waves), perhaps less vibrations, different frequencies due to different rpm?

"Our product takes in a full blow of air and separates it," said team member Leen Alfaoury. "Some of that air comes out as it is, and part of it comes out shifted. The combination of these two sections of the air makes the blower less noisy."

Sounds like they created a noise cancellation air channel.