Power in Flux
Likes Likes:  3
Page 3 of 3 FirstFirst 123
Results 21 to 24 of 24

Thread: AC-23 or new oil cooled motors from HPEVs?

              
   
   
  1. #21
    Member 4dollarjoe's Avatar
    Join Date
    Aug 2014
    Posts
    72
    Post Thanks / Like
    Interesting idea with the evaporated water cooling. I worked with an ev team a few months back that wanted to do evaporated alcohol cooling but never came to fruition. I wonder how dangerous it would be if you got a stray spark somehow though. Seemed like a bad idea.


    I like the idea of this, can't wait to see the performance with your copper heatsink.

    If you don't get as good as performance you could try making an enclosed shroud with vents for your heatsink and try the evaportated water idea. That way the water would be applied only to the copper heatsink of your motor so you wont get steel rust and also you won't have to worry about water particles coming in from your 3 fans. Air cooling for the inside and heatsink/water evap for the outside.

  2. #22
    Senior Member Hugues's Avatar
    Join Date
    Jan 2012
    Location
    Switzerland
    Posts
    1,075
    Post Thanks / Like
    I'm still very pleased with my AC-23, riding AC-20 before.

    Question: anyone knows what is the physical difference between the 2 motors ? They have about the same peak power and they have same dimensions. AC-23 has much more torque from 0 rpm but decreases faster than AC-20, the 2 torque graphs meet at around 4000 rpm if i recall correctly, then AC-23 has less torque than AC-20.

    So i guess it's the windings ?, but how are the windings different precisely ? number of coils ? number of turn per coil ? diameter of copper wire used ?...
    Regards from Switzerland
    My 2.5 Upgrade Thread

  3. #23
    Senior Member
    Join Date
    Aug 2010
    Posts
    838
    Post Thanks / Like
    Talk of cooling the HPEV AC motors reminds me of the 2010 TTXGP at VIR. Brian Richardson, of Moto-Electra, had a spray can, with a vinyl hose, running either to the controller, or the motor for those extra hard efforts...he wasn't telling which. :-)

    http://visforvoltage.org/sites/defau...CN3426-web.jpg

    They tried lots of cooling schemes,

    https://www.wired.com/images_blogs/a...electra-03.jpg

    He later did a complete redesign with a scratch-built frame, and a larger HPEV AC motor.

    https://s-media-cache-ak0.pinimg.com...es-electra.jpg
    Last edited by Warren; 2 Weeks Ago at 0912.

  4. #24
    Empulse R #24 frodus's Avatar
    Join Date
    Aug 2010
    Location
    Portland, OR
    Posts
    2,377
    Post Thanks / Like

    My Social Networking

    Follow frodus On Twitter
    Quote Originally Posted by Warren View Post
    Talk of cooling the HPEV AC motors reminds me of the 2010 TTXGP at VIR. Brian Richardson, of Moto-Electra, had a spray can, with a vinyl hose, running either to the controller, or the motor for those extra hard efforts...he wasn't telling which. :-)

    http://visforvoltage.org/sites/defau...CN3426-web.jpg

    They tried lots of cooling schemes,

    https://www.wired.com/images_blogs/a...electra-03.jpg

    He later did a complete redesign with a scratch-built frame, and a larger HPEV AC motor.

    https://s-media-cache-ak0.pinimg.com...es-electra.jpg
    Were you at VIR? That was fun. Dropped in while I was there seeing parents.

Page 3 of 3 FirstFirst 123

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •