Recent Topics
Oil suggestion for 2013 Honda CR-V
by Mar57
02/08/16 03:02 PM
STOP CALLING ME!!!!
by NHHEMI
02/08/16 02:33 PM
Need oil suggestion for high mileage 2003 WRX
by xmakeafistx
02/08/16 01:09 PM
09 VW Passat Wagon 2.0TSI 4900mi Castrol 0w40 Euro
by gerkin85
02/08/16 12:48 PM
Oil/filter recommendation for short trips
by DrRoughneck
02/08/16 12:46 PM
Auto Zone brand oil on clearance (YMMV)
by blupupher
02/08/16 11:20 AM
M1 5w30 HM / 5512 Miles / Turbo with Towing
by Astro_Guy
02/08/16 11:10 AM
My 2003 Dodge Dakota
by HM12460
02/08/16 08:37 AM
Check out the head off my extreme oil burner Honda
by Gasbuggy
02/08/16 01:31 AM
Unused Bosch 3313 cartridge
by Run
02/07/16 11:14 PM
David Fry in his own words
by Merkava_4
02/07/16 11:02 PM
Schaeffer 711 10w30 Detroit 60 12.7
by TiredTrucker
02/07/16 09:17 PM
Newest Members
slewman, lithium1189, Monktana, djh3, Compignite
56850 Registered Users
Who's Online
91 registered (aquariuscsm, 2oldtommy, 440Magnum, adelody, 05LGTLtd, 2015_PSD, 11 invisible), 1800 Guests and 200 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
56850 Members
66 Forums
244408 Topics
3979907 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3256421 - 01/22/14 03:02 PM MIT future lubrication direction preso.
Shannow Online   content


Registered: 12/12/02
Posts: 31688
Loc: Oz
Presentation on the early stages of a lubricant optimisation programme from the MIT.

I'm impressed with the mid stroke viscosity optimisation concept to keep the viscosity up at the stroke ends (reduced boundary lubrication), while reducing the viscosity mid stroke where full hydrodynamic is in play.

Interesting (obvious 'though) on additive concentration in aras of oil volatising off...explains why volatility is important, and why the tests ARE representative of whathappens in an engine (hint, it's not about crankcase ventilation).

http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2012/friday/presentations/deer12_wong.pdf

Top
#3256490 - 01/22/14 04:09 PM Re: MIT future lubrication direction preso. [Re: Shannow]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 17163
Loc: Sunny Florida
Why wouldn't we eventually end up with something like Delphi/GM's patented magnetorheological fluid one day?
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

Top
#3256493 - 01/22/14 04:10 PM Re: MIT future lubrication direction preso. [Re: Shannow]
Eddie Online   happy


Registered: 12/07/03
Posts: 7836
Loc: Florida, Cape Coral
tHANKS SHANNOW. a LARGE AMOUNT OF INFORMATION/DATA IN THE PAPER. Ops caps were on. Ed
_________________________
CX5 Touring 2.5L :-)

Top
#3256535 - 01/22/14 05:22 PM Re: MIT future lubrication direction preso. [Re: Shannow]
JAG Offline


Registered: 10/23/05
Posts: 4550
Loc: Fredericksburg, VA
I too liked the concept of differentially altering liner temps. so viscosity is increased at the ends. Polymer VIIs can have a similar effect, at least qualitatively, since temporary shear thinning is greater mid-stroke than near the ends due to the piston velocity profiles. Keep HTHS constant by lowering base oil viscosity and increasing polymer concentration. That would increase temporary shear thinning, maintain true viscosity mid-stroke and increase true viscosity near stroke ends. Thanks Shannow.

Top
#3256545 - 01/22/14 05:37 PM Re: MIT future lubrication direction preso. [Re: Shannow]
Shannow Online   content


Registered: 12/12/02
Posts: 31688
Loc: Oz
JAG, I was thinking the same in the shower this morning...about shear thinning that is.

Top