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From: Ernest Christley <echristley@nc.rr.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: flyrotary_Web_Archive
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George Lendich wrote:

>
>Dakota pick-up.  The air comes into a large box, with a large, flat, pleated
>filter covering the top.  Air comes into the box and slows down.  Heavy
>stuff drops to the bottom, and engine air get sucked out the top.  I have to
>vacuum a few tablespoons of sand out of the box whenever I change the
>filter, and I don't do any off-roading.
>
>I would have thought the filter would have picked it all up - is it a fairly
>porous filter? OR am I not understanding?
>George ( down under)
>
>
>  
>
The air comes in the side, and then out through the top.  The large box 
expands the air and slows it down.  Heavy stuff falls.  Anything that 
isn't heavy enough to fall gets caught by the filter that covers the top.


to intake        <-----------------,
                                             |
  -----------------------------------------------------------
 |{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{{|   <----------filter
 |                                                                          
|
 |                                                                          
|
 |        empty space                                               |    
<--air from outside
 |                                                                          
|
 ------------------------------------------------------------

-- 
This is by far the hardest lesson about freedom. It goes against
instinct, and morality, to just sit back and watch people make
mistakes. We want to help them, which means control them and their
decisions, but in doing so we actually hurt them (and ourselves)."