I wonder if?

[beerad]

You could create a central vacuum using two vintage 1960s hoover convertible motors ?

The fans are very big on those motors and do you think it would create a strong air flow ?

Or

How about using the exhaust from the two motors and Turning that into air flow and suction?
Like they have in Costco ,,,, where they put the tubes of cash and it gets sucked up to the office.
My friend told me that the set up for Costco is a big motor with big fans that create suction through the tubes,,,

What do you think ?

 

[super-sweeper]

I guess there's only one way to find out! It would be one sweet-sounding central vacuum! 

 

[beerad]

Hmmmm

Maybe I will investigate further ,,,,

 

[gottahaveahoove]

Well, if ANYONE can make that happen.....

it will be you. Yes, imagine that sound??

 

[DesertTortoise]

Somewhere on the Ametek-Lamb website is an informed critique of operating vacuum motors in series. In their opinion this has many drawbacks not the least of which are serious overheating of the second motor in series. Dig around their website, I don't wish to misquote them but their analysis was it was much less effective than most imagine.

 

[kenkart]

It would have

Lots of airflow, and not much sealed suction im afraid...

 

[sbakerde]

Not enough water lift

I don't think it would work very well due to the lack of water lift. That is a must have to overcome the network of piping and long hose. Direct air motors are great for pulling dirt then they are directly on the floor. Once you start adding hoses they don't do as well. Kirby was smart by revving the motor to a higher speed when the hose is attached. DT I agree about the motors in series. From my experience with dual motor central vacs the ones hooked up in series don't last nearly as long as parallel. I have also noticed that series gives a higher water lift reading but not much improvement to airflow. It seems that in parallel one motor fights the other ultimately resulting in short motor life.

 

[cb123]

A system such as that would, perhaps, be better suited for the German Dornier Do 335 push and pull prop-platform in an open system, but in a closed system, it would be dubious at best. What you really need is a single Bearcat radial engine...that'll suck the paint off your walls! If you have ever worked in air conditioning installation, the engineers try to minimize putting additional fans in the ductwork, just because of the heat issue. This is one of the reasons why it is so very important to properly size your system correctly. If you don't, you will cause more heat, friction and turbulence, which will negate any and all benefit, and thus be more of a liability than an asset...not even to mention the noise factor involved!   

 

[sebo_fan]

Ask DT he seems to be the know it all for putting things together.