Cool piston tech

[dieseldonato]

2017 is the year I quit working on them. With the exhaust emissions problems we had economy would have been impossible, and useless to measure. But......retirement solved all those issues, easy

It was quite the challenge/ learning curve. Never had many issues with volvo. Scania was a straight up nightmare.

 

[BEWtheDEW]

Technology award for wave piston design that lowers fuel consumption

The Volvo Group’s new truck engines are more fuel efficient as a result of their intelligent piston design. Waves have been added to the piston crown to improve the use of oxygen. The engineers behind the innovation have now received the Volvo Technology Award 2017.

www.volvogroup.com

Good luck getting any actual data from volvo.

Oooh ok I see, the design and concept is a bit different, Volvo uses “waves” to direct fuel utilization toward the center of the piston, as opposed to increasing overall combustion. And yea, without any comparable data, who is to say that their design is going to change anything.

 

[turbodieseldyke]

And yea, without any comparable data, who is to say that their design is going to change anything.

The proof is in the putting (fuel in the tank). If Volvo trucks use remarkably less fuel than the competition, everyone will know it.

 

[dieseldonato]

At least in industrial applications volvo was always pretty fuel efficient vs many other mfg. No idea how it translated into the truck market.

 

[adjat84th]

Dyno results are in for the EA288 (CRUA) with the SOA pistons. CR190 and they start the dyno at 2600rpm
305ft-lbs and 181hp (barely any change to stock piston dyno) with no change to the tuning which they are claiming to see a 200deg (likely Fahrenheit) drop in EGT which would allow for some easy tuning fuel increases. Based on the dyno chart, I'm not sure this thing is tuned very well as there should be ample low end torque to support starting the dyno pull at 1600-1800rpm