Could you make an air filter for a car based on the dyson vacuum cleaner principle? Any idea what size particles an air filter must block and what size particles a dyson can remove from the air flow?

No knicking my idea anyone!

Why would you want too?

Liam

Why? Just... why K+n... £40, Dyson, £140!

Hellcat said:

Could you make an air filter for a car based on the dyson vacuum cleaner principle? Any idea what size particles an air filter must block and what size particles a dyson can remove from the air flow?

Click to expand...

What principle? The vortex thingy?

IIRC an air filter is not quite as 'filtering' as a HEPA filter in an vacuum cleaner.

A True HEPA filter (allergy rated kinda nonsense) is good down to 0.5 micron, apparently, and a a HEPA type (OE vacuum cleaner job) is good for 1 micron.

K+N's are tested with a range of 5.5-176 micron, and keep 97% ish of that out...so Id think its probably OK for 10 micron!

Bear in mind 1 micron = 0.001mm, so thats farly small (a human hair is 50 micron width or thereabouts IIRC)

That help?

Just toying with the idea of an air filter with no actual filter material therefore no restriction to flow.. the dirt would be spun out of the air flow. Not sure if it would actually work or the cyclone would be more restrictive than the filter medium but would be quite a gimick

iirc i seem to remember something called the tornado i think this used a similar principle to spin out air, filter it, then split it up in to smaller particals. this allowed it to stay cooler or something

i cant remember really.

I'd buy a Dyson for my car could sort out some air conditioning aswell

thing is though wouldnt it need to "process" the incoming air at a phenomenal rate? then making the actual mechanism huge to allow the sort of volume of air you'd need to do the job.......oldschool? whats the word?

also how would you get rid of the dirt cauz it will need to go somewhere i.e thats the reason for an airbox

You'd have a see through barrel that you would empty into the bin and wash out every 50,000 miles

As for the volume of air i'm not sure of the cfm required. I've seen the dyson robot cleaner and its got a very small dirt filtration compared to an upright cleaner.

honda have a similair idea for construction equipment:
http://www2.northerntool.com/product/200317905_200317905.htm

again though there must be a massive order of diffrence between what is essentially a static device and a much larger, more powerfull moving one.