New fan blade design - owl like

m^2 · Post by **m^2** » Wed Jun 04, 2008 3:27 am

charonme wrote:a year passed. do we have some actual fans?

Yes:

thejamppa wrote:I wonder what next? Case fan with two counter-rotating blades?

It's here.

lethul · Post by **lethul** » Fri Jun 06, 2008 1:19 pm

That "Fenestron" technology seems intressting. What if they put enclosed the tips on computer fans?

AckeDman · Post by **AckeDman** » Mon Jun 16, 2008 6:27 am

m^2 wrote:
charonme wrote:a year passed. do we have some actual fans?
Yes:
thejamppa wrote:I wonder what next? Case fan with two counter-rotating blades?
It's here.

This looks interesting. 220cfm@12v(if we say we belive the manufacturer). I wonder how it sounds at 5v or below.

MC FLMJIG · Post by **MC FLMJIG** » Mon Jun 16, 2008 7:13 am

Even at 7V it may not be too bad IF the numbers are truly accurate.

Too pricey though. Clearance too!!!

bexx · Post by **bexx** » Mon Jun 16, 2008 10:09 am

Some of the 40mm fans in 1U racks have two counter rotating blades... whats really neat tho is the '2nd' one has a different blade shape. The fans are insanely loud (12k rpm lol) BUT they do create crazy amounts of pressure. No application for silent computing but neat fan design.

m^2 · Post by **m^2** » Mon Jun 16, 2008 2:19 pm

bexx wrote:Some of the 40mm fans in 1U racks have two counter rotating blades... whats really neat tho is the '2nd' one has a different blade shape.

So does this one, one fan has 3 and the other 5 blades. Additionally, they rotate with different speeds.

charonme · Post by **charonme** » Wed Jun 18, 2008 12:33 am

m^2 wrote:Yes:
thejamppa wrote:I wonder what next? Case fan with two counter-rotating blades?
It's here.

thanx, but the delta is nowhere near the toothed owl like shape from the OP pic. Isn't noctua closer?

New fan blade design - owl like

it's not delta