Doctorbass
100 GW
8) 8)
UPDATE ON PAGE 3 ( new principle and more efficient and simple) http://www.endless-sphere.com/forums/viewtopic.php?f=2&t=39933&start=30
Yes... This motor still have not make a single rotation on any of my ebike, but it will be liquidcooled !
I want it to me a REAL beast and to have it able to sustain that title of real beast during an entire run !!!
No more motor overheat problem.. no temp gauge to watch and that require reducing the throttle!
I already remachined the axel to have 3 x 10 gauges wire to fit perfectly and the other side of the axel a similar groove but that will contain the 2 brass pipe for the inlet and outlet!
To do that i needed to replace the smaller 6004 bearing of the axel by another 6005 to accomodathe enough room to have the two pipe required room.
The big probelm was to have enough I.D. to have enough liquid flow to make efficient the cooling, but the room for the pipe is restricted. I finally found a great way to have really thin tube thickness and not too gfragile. I found that using TV telescopic antenna brass tube is just perfect !!
So the I.D. is like 1/4 inch !! and the O.D is like 9/32" !!
I dont have the time and $$$ to have custom machined aluminum path for the liquid so i dediced to go with copper tube
Problem with copper tube is that the effective surface that can be in contact with the aluminum of the stator is really low .. unless the tube are square.. but i have normal tube :lol: .. and they are round !
So the way i found is to add some 22mil copper sheet that increase the effective surface in thermal contact with the aluminum of the stator and to solder them to the spiral copper tubes.
No worrie i will post pictures of the project soon. :wink: I expect to have 4 foots lengh of the 1/4" I.D. copper tube touching the copper sheet that are in contact with like 70% of the aluminum of the stator.
Worst case of use of that liquid cooling setup might be to extract like 4-5kW of heat for a 16-17kW power input... at 130-140km/h
Doc
UPDATE ON PAGE 3 ( new principle and more efficient and simple) http://www.endless-sphere.com/forums/viewtopic.php?f=2&t=39933&start=30
Yes... This motor still have not make a single rotation on any of my ebike, but it will be liquidcooled !
I want it to me a REAL beast and to have it able to sustain that title of real beast during an entire run !!!
No more motor overheat problem.. no temp gauge to watch and that require reducing the throttle!
I already remachined the axel to have 3 x 10 gauges wire to fit perfectly and the other side of the axel a similar groove but that will contain the 2 brass pipe for the inlet and outlet!
To do that i needed to replace the smaller 6004 bearing of the axel by another 6005 to accomodathe enough room to have the two pipe required room.
The big probelm was to have enough I.D. to have enough liquid flow to make efficient the cooling, but the room for the pipe is restricted. I finally found a great way to have really thin tube thickness and not too gfragile. I found that using TV telescopic antenna brass tube is just perfect !!
So the I.D. is like 1/4 inch !! and the O.D is like 9/32" !!
I dont have the time and $$$ to have custom machined aluminum path for the liquid so i dediced to go with copper tube
Problem with copper tube is that the effective surface that can be in contact with the aluminum of the stator is really low .. unless the tube are square.. but i have normal tube :lol: .. and they are round !
So the way i found is to add some 22mil copper sheet that increase the effective surface in thermal contact with the aluminum of the stator and to solder them to the spiral copper tubes.
No worrie i will post pictures of the project soon. :wink: I expect to have 4 foots lengh of the 1/4" I.D. copper tube touching the copper sheet that are in contact with like 70% of the aluminum of the stator.
Worst case of use of that liquid cooling setup might be to extract like 4-5kW of heat for a 16-17kW power input... at 130-140km/h
Doc