How do I create air flow endlessly through a 1" plastic tube connected to itself vict

Discussion in 'General Electronics Chat' started by HenricDisuza, Mar 6, 2013.

  1. HenricDisuza

    Thread Starter New Member

    Mar 6, 2013
    Hi All,

    I am going to post first time in this forum.

    I have a long flexible 1" plastic tube that is attached to itself forming a closed circuit and I'd like to add an electric blower to it to flow air continuously that will make a small ball go around continuously. I'd like to splice the blower into the 1" plastic tube but need to know where or how to exhaust the air to keep the air circuit moving continuously in one direction.
  2. JDT

    Well-Known Member

    Feb 12, 2009
    Not sure how a fan would work because it will get in the way of the ball.

    One possibility might be to have a tangental air jet that gives the ball a kick that fires it all the way round. Or a number of air jets. See drawing.

    Of course, if air goes in - it has to come out so one or more outlets will also be needed.

    If the ball was metallic (steel or non ferrous) then all sorts of magnetic or electrical ways of driving the ball become possible.
  3. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    I like the air jet idea... one jet to start things off, and several ports to let the air out.

    Here's one idea for a vertical loop: air inlet near the botton with several exaust ports on the side where the ball goes up. Gravity brings it back down. Inlet probably needs to be aimed to the rising side

    • Air.bmp
      File size:
      40.5 KB
  4. MrChips


    Oct 2, 2009
    I'm guessing that once you start blowing air in and as the ball gets moving the column of air and the ball will keep circulating. You can reduce the air flow after that.
  5. PackratKing

    Well-Known Member

    Jul 13, 2008
    You may want to check into an HVAC furnace / fireplace chimney " Draft inducer " and how they are applied... and scale one down to your application..