View Single Post
Old 07-03-2015, 08:46 PM   #81 (permalink)
IamIan
Master EcoModder
 
IamIan's Avatar
 
Join Date: Dec 2010
Location: RI
Posts: 692
Thanks: 371
Thanked 227 Times in 140 Posts
Quote:
Originally Posted by Old Mechanic View Post
Would you attribute the 20% improvement to more efficient combustion, or greater throttle opening, or a combination of both in what Percentage?
The test report I read .. didn't specifically break it apart into contributing portions .. verbatim quote (with sited source) attached bellow for others to interpret differently if they wish.

Personally .. my guess .. would be a combination of those you listed and others .. My shoot from the hip guess of the most to least contributing might be something kind of like.
  • Improved Efficiency of converting the fuel energy combusted into shaft energy... which would be the net result of numerous others :
    • Reduced throttle losses
    • Improved angle of application
    • Improved synchronization of applied force during cycle.
    • Reduced back pressure.
    • + other more minor influences
  • More complete Combustion of fuel chemical energy injected... which is also the net result of numerous others:
    • Improved air / fuel concentration gradient flux.
    • Increased pulse width of combustion event.
    • Improved Spark Plug design for specific application.
    • + other more minor influences
  • some other more minor contributions.

Attached Thumbnails
Click image for larger version

Name:	LeanBurnEfficiency.jpg
Views:	36
Size:	33.1 KB
ID:	18207  
__________________
Life Long Energy Efficiency Enthusiast
2000 Honda Insight - LiFePO4 PHEV - Solar
2020 Inmotion V11 PEV ~30miles/kwh
  Reply With Quote