miuge
Veteran Member
Joined: March 2014
Posts: 200 
|
Post by miuge on Jan 15, 2023 10:10:01 GMT -5
Unfortunately no news on this, we've been busy doing parts as a subcontractor and our own automotive components, family got bigger and time for hobbies has been limited for a few years now  Couple of project cars need to be finished first and who knows what's next.. I've had thoughts of getting a vertical CNC mill after the CNC turning center has been paid and if we then have bigger facilities. Already asked a quote for this machine which would probably suit well for our purposes: en.dmgmori.com/products/machines/milling/vertical-milling/cmx-v/cmx-600-v |
|
miuge
Veteran Member
Joined: March 2014
Posts: 200
|
Post by miuge on Jan 18, 2023 18:01:49 GMT -5
One night I gave a thought for what I already have and what's needed, I was reading my previous posts and wanted to confirm I'm on the right track.
Oil system should be bulletproof on this one, oil pump I bought earlier is 3cc/rev hydraulic pump. I found a HX82 manual online which tells requirements for oil pressure and flow:
12. Oil pressure of 150 kPa (20 lbf/in2) must show at the oil inlet within 3 - 4 seconds of engine firing to
prevent damage to turbocharger bearing system. A flexible supply pipe is recommended. Recommended
oil pressure at full load/ rated speed is 300 kPa (44 lbf/in2) although 600 kPa (88 lbf/in2) is permitted
during cold start up. Under idling conditions pressure should not fall below 70 kPa (10 lbf/in2).
14. Recommended oil flows for the turbochargers are 3.5 litre/min at idleand a minimum of 6 litre/min
above maximum torque speed.
To meet the 6L/min flow I need to spin this 3cc/rev pump at 2000rpm and as I want to have plenty margin, say another 50%, I set motor requirement at 3000rpm. I had a 6368 190KV motor added on my shopping cart since before, but found another 6384 150KV motor which should provide a bit more oomph. The seller also offered customization service for these motors, I calculated that 100KV motor should do the job easily at nominal 36V and even with "empty" 36V 10S lipo battery it should meet the requirement without dropping oil pressure. Of course other safety parameters and switches will be added so that there will be no situation with no oiling. Comments?
As a starter motor for the turbine 5692 980KV unit at 36V was considered and I think that's still the best I can find, 35000rpm at nominal voltage, probably even more with full battery pack and a capable controller.
|
|
Couple of project cars need to be finished first and who knows what's next.. I've had thoughts of getting a vertical CNC mill after the CNC turning center has been paid and if we then have bigger facilities. Already asked a quote for this machine which would probably suit well for our purposes: