Interesting Koenigsegg vid

[uclabiker06]

http://www.wimp.com/combustionengine/

[Ddan]

That's pretty cool

[zooom]

probably not too far off from the pnuematic valve system that HRC uses in the RC212V if I had to guess....still cool to physically see it and know the capabilities and benefits.

[Monsterlover]

Awesome. Those ideas have been around a long time. Nice to see that work is still progressing. 

Think of it...

Infinitely adjustable duration and overlap

[triangleforge]

Big brains are very cool things.




This is one of those very frequent times I wish I had one.

[Speeddog]

Those parts seem to work well on an automotive engine.

I find their claims of being used in a 15,000 rpm moto engine a bit hard to swallow.
They say in the video 'opening in a few milliseconds' and 'closing in a few milliseconds'.
The spec sheet I dug out of the Cargine website had the following info:

Rise time 1-8 mm: 2.5 ms
Fall time 8-1 mm: 2.6 ms
Activation delay: 4.5 ms

http://www.cargine.com/wp-content/uploads/2013/01/Cargine-Free-Valve-Actuator-G5-Specification-2012-09-291.pdf

So it's over 5 ms for the quickest valve event.

At 15,000 rpm, it's 4 ms for a complete crank revolution.
Even a long duration cam,  the valve event is going to be ~3 ms.
They'd need a system ~2x faster.

Perhaps they're holding something back.

[Ddan]

Those parts seem to work well on an automotive engine.

I find their claims of being used in a 15,000 rpm moto engine a bit hard to swallow.
They say in the video 'opening in a few milliseconds' and 'closing in a few milliseconds'.
The spec sheet I dug out of the Cargine website had the following info:

Rise time 1-8 mm: 2.5 ms
Fall time 8-1 mm: 2.6 ms
Activation delay: 4.5 ms

http://www.cargine.com/wp-content/uploads/2013/01/Cargine-Free-Valve-Actuator-G5-Specification-2012-09-291.pdf

So it's over 5 ms for the quickest valve event.

At 15,000 rpm, it's 4 ms for a complete crank revolution.
Even a long duration cam,  the valve event is going to be ~3 ms.
They'd need a system ~2x faster.

Perhaps they're holding something back.

Maybe I took it wrong, but I thought he was saying there was a few milliseconds delay before the actuator moved, not for the entire event

[Monsterlover]

Maybe I took it wrong, but I thought he was saying there was a few milliseconds delay before the actuator moved, not for the entire event

That's how I understood it.

[Speeddog]

I heard " a couple millisecond delay, a couple millisecond open, a couple millisecond close."

More or less.

[cokey]

Too bad we'll probably never see it here..  some great tech.. 

[uclabiker06]

Thought some of you would know more about this than me. 

[Speedbag]

Awesome. Those ideas have been around a long time. Nice to see that work is still progressing. 

Think of it...

Infinitely adjustable duration and overlap

This.

[Steve.In.Atlanta]

That tech stuff is all well and good, but the sound of that Koenigsegg car is beyond amazing.