Tuna Can Blower

I understood that cats were unable to process only vegetable matter and must have meat/fish/fowl protein.
DaveD

As an industrial fan engineer of some 60 odd years (still working) I can throw some light on the blow/suck question.

Firstly any fan blows and sucks and vice-versa. Names such as fan, blower, exhauster are frequently used as loose terminology. In the industrial fan industry a fan is generally considered to be a medium to high flow at low to medium pressures. Likewise a blower would be a low flow high pressure. High and low of course are all relative terms but in the fan world pressures don't generally go much beyond 400 mbar for multistage units. Above that comes into the compressor category.

In terms of application there are blowers and exhausters or a bit of both.

So strictly speaking a steam raising blower is actually an exhauster by virtue of all or most of its pressure is on the inlet side, pressure in this sense being negative pressure (relative to atmospheric pressure)

Interested to see your home made fan Stewart, well done. Thought about making my own but need to finish my loco first, see if i can be bothered then, Saw those ex military blowers? some years ago, they were quite cheap, should have bought one then.

Hope this helps.

Bill D.

Perhaps I should have also said that blower or exhauster is more determined by the application rather than any difference in the fan.

Bill D

Only if the cat was made from vegetables

Reading this thread I noticed the comments regarding a modified drill bit. For thin materials a small piece of rag folded up and put under the tip of a standard drill will produce much better results than using the drill alone.

Martin