Half a croissant, on a plate, with a sign in front of it saying '50c'
h a l f b a k e r y
We have a low common denominator: 2

idea: add, search, annotate, link, view, overview, recent, by name, best, random

meta: news, help, about, links, report a problem

account: Browse anonymously, or get an account and write.

User:
Pass:
Login
Create account.


            Please log in.
If you're not logged in, you can see what this page looks like, but you will not be able to add anything.

Leaf Blower Exhaust Extractor
Suck out exhuast with the big fan
 
(0) 		  [vote for,
against]


I've noticed that backpack type leaf blowers have rather smelly and noisy two-stroke engines with mufflers that point out directly behind the user.

Why not connect the motor's exhaust pipe to the ductwork of the large fan it drives? The fast-moving and low-pressure air would suck out the exhaust fumes, providing a better scavenging effect and, if designed propperly, buringing up many of the remaining hydrocarbons. It might even cut down on the noise a bit. You would just need to make sure the gasses have cooled enough by the time they get to the leaf blower nozzle to keep the leaves from catching fire.

It would also be possible to make another, smaller impeller fan that would run off of the same shaft and work as a supercharger.

rasberry re-tart, Oct 27 2005


Short name, e.g., Bob's Coffee

Destination URL. E.g., http://www.coffee.com/

Description (displayed with the short name and URL.)







       Would the leaves absorb toxins becoming a hazzard for children (or adults) who might play in the piles of leaves?
jscottpete, Oct 27 2005
   

       I don't think so, at least not any more than the leaves still on trees would absorb the exhaust normally. I think it would still be better for the exhaust to come out faster with a higher volume of air.
rasberry re-tart, Oct 27 2005
   

       [jscottpete] I think you're right. Burnt oily leaves probably arent too good for kids to play with...   

       Plus: "Leaf Blower" = object with oily combustion engine to blow leaves "Blow" = air "Oily Dry Leaves" = fuel "Combustion Engine" = fire Air + Fuel + Fire = MORE FIRE ! (I haven't decidied if thats a + or - yet !)
JoeyJoJoShabadoo, Oct 28 2005
   

       I think you're over-estimating the ammount of unburned fuel and oil in the exhaust. While two-stroke boats and snowmobiles can make large oily deposits behind the exhaust, leaf blower engines are only about 25 to 50 cc.
rasberry re-tart, Oct 28 2005
   


 
back: main index
 business 
 computer 
 culture 
 fashion 
 food 
 halfbakery 
 home 
 other 
 product 
 public 
 science 
 sport 
 vehicle