Recent Topics
BMW Mechanic
by borgward
05/22/17 11:54 AM
2013 Chevy equinox noise cansulation system
by Fitter30
05/22/17 11:30 AM
06 Milan Harsh Shifting
by Throt
05/22/17 11:25 AM
Ferodo Premier brake pads?
by Finn
05/22/17 11:24 AM
Mann HU712/8 ~2500 miles
by slybunda
05/22/17 10:26 AM
Crossland FD 2416031 30 minutes use
by slybunda
05/22/17 10:17 AM
UPF48 vs PF48/48e
by Mossyoakglock
05/22/17 10:04 AM
Determining oil to use for autoX/Daily driver
by bcredeur97
05/22/17 09:43 AM
2017 Ford Expedition 3.5L EB 1338mi Factory fill
by 89Rustang
05/22/17 09:30 AM
Lithium to calcium grease
by 2000Trooper
05/22/17 09:12 AM
ROTELLA IN GAS ENGINES
by TOMJ
05/22/17 08:35 AM
ROTELLA FOR GAS ENGINES
by TOMJ
05/22/17 08:34 AM
Mobil 1 0W-20 HM
by DBMaster
05/22/17 07:15 AM
Anyone following Project Binky?
by OneEyeJack
05/22/17 06:48 AM
Why no Chinese made or branded oils in the U.S.?
by skyactiv
05/22/17 05:54 AM
Castrol TransMax or Valvoline Maxlife ATF
by NavyVet88
05/22/17 03:24 AM
BEWARE: Toyota OEM YZZ filters undersized
by Gokhan
05/22/17 02:19 AM
System1 reusable oil filters
by Mesozoic
05/22/17 12:35 AM
Liqui-Moly "Motor Oil Saver" for valve stem seals
by 1JZ_E46
05/21/17 11:54 PM
Ghost ring retrofit on a rifle
by JHZR2
05/21/17 10:25 PM
Newest Members
dutch300zx, Bmandre22, 455RACE, bcredeur97, beep119
61624 Registered Users
Who's Online
99 registered (1JZ_E46, 89Rustang, 2000Trooper, 87sammy, 55Test, 10 invisible), 2334 Guests and 12 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
61624 Members
66 Forums
265457 Topics
4386369 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#3256421 - 01/22/14 03:02 PM MIT future lubrication direction preso.
Shannow Offline


Registered: 12/12/02
Posts: 35682
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: 18268
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 Offline


Registered: 12/07/03
Posts: 8688
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 Offline


Registered: 12/12/02
Posts: 35682
Loc: Oz
JAG, I was thinking the same in the shower this morning...about shear thinning that is.

Top