Dyson Piston

[cheesewonton]

I was thinking, the V16 reaches 900W only in boost mode, without electric head and when the air openings are blocked, so only in case of stress, but is there a rule that says that this value can be hidden on the machine and write 450w instead of 900W? Maybe for some regulation writing 900w is illegal for some legal energy rules? And so they simply said the thing in marketing
For example, in the EU vacuum cleaners that exceed 900W are prohibited

A vacuum motor uses more watts when airflow is unrestricted. When airflow is restricted, the fan(s) is(are) unloaded. That reduces the power required to spin the fan(s). When you look at performance charts for vacuum motors you see this. As the orifice is restricted, motor rpm rises while amps and watts consumed both decline.

 

[Follettolover]

I've seen plenty of old Kennys with Ametek motors pushed past their thermal limits. Warped / melted bodies, burned commutators with melted segments smeared across each other. Turn it on and it sounds like ball bearings in a blender O_O

Besides that, I think it's very useless trying to force a product that was born, built, and sold in a certain way. We should just accept that Dyson made this decision for this release.
I also remember the V10; it was definitely a game changer. Then with the V11, they perfected all the starting material and improved the quality. The V16 is just the first attempt to better future products (I hope).

 

[centralsweeper63]

It already runs at 139,000 RPM (likely at 450 watts), increasing that would make it explode extremely quickly.

 

[centralsweeper63]

Actually that is a very good point, likely why the thing ramps it up.

 

[centralsweeper63]

Hold it, wait a minute, is this going to be the vacuum equivelant of the Volkswagen emissions scandal?

 

[cheesewonton]

It already runs at 139,000 RPM (likely at 450 watts), increasing that would make it explode extremely quickly.

Jet engines only spin 30,000 - 50,000 rpm. What kind of bearings tolerate 139,000 rpm?

 

[cheesewonton]

Hold it, wait a minute, is this going to be the vacuum equivelant of the Volkswagen emissions scandal?

I don't think anyone in any level of government is going to shiv a git so probably not.

 

[centralsweeper63]

Dyson bearings. Apparently.

 

[centralsweeper63]

https://www.dyson.co.nz/dyson-v16-piston-animal-submarine-496025-01-matte-black-copper-plus-dok

 

[centralsweeper63]

It doesn't show on their website at the moment, it did a while back though.

 

[Hatsuwr]

If you have a well-balanced system that is properly (pre)loaded, you can go way past general use bearing ratings.

 

[centralsweeper63]

That isn't necessarily true, also 139,000 thousand RPM is very excessive.

 

[cheesewonton]

If you have a well-balanced system that is properly (pre)loaded, you can go way past general use bearing ratings.

Number one, you don't preload a ball bearing. That is only for tapered roller bearings.

 

[centralsweeper63]

That is also true.

 

[centralsweeper63]

I just wish that it would be comprehensible to everyone how ridiculous this whole V16 situation is.