Thin Gap Motors

Discussion in 'Industry News' started by utrinque, Aug 1, 2015.

By utrinque on Aug 1, 2015 at 10:04 PM
  1. utrinque

    utrinque Well-Known Member

    http://www.thingap.com

    [​IMG]

    "ThinGap is currently developing a series of new off the shelf ring motors including a 7” outer diameter motor with 4 kW shaft power."

    http://www.thingap.com/wp-content/uploads/2015/04/Thin-Gap-Brochure-2015-Web.pdf

    They are discsussed on HF now:
    http://www.helifreak.com/showthread.php?t=706839

    I wonder if they can be used as direct main shaft power source without any gears due to relatively low kV?

    Advantages:
    - 7kW of power
    - low weight (?) - if they have 1kW/1kg we have already 4.5kw/0.5kg in our BL motors

    Disadvantages:
    - looks like they require very high voltage (160V)
    - lack of suitable ESCs
    - high price (?)

    Mass production can decrease costs but patents and intelectual property issues can limit wide spread of this relatively old technology.

    2002 thread:
    http://www.rcgroups.com/forums/showthread.php?t=35396

    2003:
    http://www.rcgroups.com/forums/showthread.php?t=139411

    Another old thread:
    http://www.rumrunnerracing.com/feforums/showthread.php?s=&threadid=7644

    Does anybody know more about them?
     
    Last edited: Aug 1, 2015
    utrinque, Aug 1, 2015
    #1

Comments

Discussion in 'Industry News' started by utrinque, Aug 1, 2015.

    1. smakmeharder

      smakmeharder Administrator

      OMG these motors - amazing tech... light and powerfull. Requiring batteries batteries to power up to 160 V though... that is very high voltage - it would turn your heli into a very dangerous piece of technology. And if you used some kind of inverter to power up the voltage you would probably loose your power/weight advantage. Nevertheless, its a tech that should be worth investigating for sure.
       
      smakmeharder, Aug 2, 2015
      #2
    2. Beaver

      Beaver Well-Known Member

      I'm thinking 60 to 90mm BL "pancake" motor with built in planetary reduction gearing.
       
      Beaver, Aug 2, 2015
      #3
    3. utrinque

      utrinque Well-Known Member

      After reading more I became sceptical.
       
      utrinque, Aug 2, 2015
      #4
    4. Min

      Min Well-Known Member

      1KW/KG? thats like putting in a scorpion 4525 ultimate size motor that only puts out 500W of power. Scorpion already has a motor that does almost 10KW/KG which is 10 times more.
       
      Min, Aug 2, 2015
      #5

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