EcoModder.com

EcoModder.com (https://ecomodder.com/forum/)
-   General Efficiency Discussion (https://ecomodder.com/forum/general-efficiency-discussion.html)
-   -   Toyota 2.0L M20A-KFS dynamic force engine (https://ecomodder.com/forum/showthread.php/toyota-2-0l-m20a-kfs-dynamic-force-engine-36999.html)

Daox 11-09-2018 04:25 PM

Toyota 2.0L M20A-KFS dynamic force engine
 
5 Attachment(s)
This engine seems pretty packed with new technology. Pretty interesting stuff IMO.

2.0-liter Dynamic Force Engine, a New 2.0-liter Direct-injection, Inline 4-cylinder Gasoline Engine

Quote:

...the newly developed 2.0-liter gasoline vehicle and hybrid vehicle engines achieve world-leading thermal efficiencies of 40 percent and 41 percent respectively...

Not too shabby! What nifty techniques did they use? Lets see:




Very neato Toyota! Lets hear more:

Quote:

Details of new technologies

Piston with Laser Pit SkirtWorld's first
By subjecting the skirt sliding surface to mirror finishing, reduced friction is realized. On the skirt surface, narrow crosshatch grooves created by lasers improve scuff resistance.

https://ecomodder.com/forum/attachme...1&d=1541798273



Performance

Cylinder head (for conventional engine vehicles and HVs)
Adopting a laser clad valve seat for the intake valve seat to make the intake port compatible with strong tumble flow (fuel consumption performance) and intake flow rate (output performance).

https://ecomodder.com/forum/attachme...1&d=1541798326



Fuel Consumption

https://ecomodder.com/forum/attachme...1&d=1541798385



Common architecture of combustion

https://ecomodder.com/forum/attachme...1&d=1541798459


Wooo, that BSFC map looks nice!



Here is a video explaining some of the technology too.

https://www.youtube.com/watch?v=X__JTmVJ9ug

Ecky 11-12-2018 08:26 AM

It's not mentioned, but I'm assuming this engine also uses an offset crank? I'd be pretty interested in a comprehensive list.

That peak BSFC RPM is pretty high, maybe attributable to friction reduction?

Daox 11-12-2018 09:20 AM

I could be wrong, but I would assume most new engines are using an offset crankshaft these days.

Ecky 11-12-2018 11:04 AM

If I'm not mistaken, the K20C in the new Accord and Civic Type R do not have an offset, since none of the other engines in the K family have an offset. I can't find any explicit information on it.

It would not surprise me if Subaru's boxer engines did not have an offset, for balance reasons.


All times are GMT -4. The time now is 09:16 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com