Koenigsegg free valve technology

[Charlie-brm]

Here is a valve cover cut away of an operating BMW car engine revving to 14,000 rpm. Contemporary DOHC with springs engineering. Fun starts at 00:50
https://youtu.be/tKPJHq9hzEQ

It's almost painful to watch and I don't put my face too close to the monitor, LOL. How engines don't fly apart and turn into portable particle colliders just impresses me all the time.

[FeralRdr]

Recently I was peeking under a cover at an unnamed motorcycle shop and noticed a FJ cylinder head with the cams missing and all the cam journals milled out and recessed into the head, some sort of strange valve actuators with small hydraulic lines running to them.
Hmmmm, no cams?

Then last week, I saw this in my news feed:  http://www.popsci.com/9-greatest-innovations-in-automotives-this-year

Further investigations: https://www.youtube.com/watch?v=f4p-55a3WV8

So any truth to the rumors an RPM Flux Capictor is in the works too? 

[TexasDave]

                                                   10 years in the future

This Koenigsegg computer controlled valve technology is great. Can select one mode for max gas mileage for touring. Second mode for max power with the computer automatically adjusting the timing, EFI, valve lift and duration. All done while travelling down the road. Then there is boost mode activated by a button for far more power. Timing, EFI and now both valves opening and closing on every stroke. Now have a 1200cc TWO STROKE. 30% more power. Only good for short periods and gas mileage is crap but who needs a TURBO?

Dave   

[ZOA NOM]

The talk of using the engine as an air compressor on deceleration was interesting...

[Pat Conlon]

...and no throttle plates to control airflow to the cylinders....

[ZOA NOM]

...and no throttle plates to control airflow to the cylinders....

Pregnant with possibilities...  Maybe the good 'ol internal combustion engine hasn't quite given way to the coal-fired electric crapcans just yet... 

[Russfjr1]

When I was working at Koenigsegg on the development of the powerplant all be it mostly v12 AMG we figured that with tweaking the tec we could knock off 4 cylinders thus using a v8, buy filling on board air tanks via pistons on over run with sufficient air pressure to take place of the turbos and give a rise of 34% power per litre. This we put to test on a Nissan Micra 1.0 made in 2001 with if memory serves 53bhp (at the engine not wheels). We made the head for it minus the cam and with a few other modifications to the inlet and exhaust tracks we managed 68% increase to 89bhp
OK i agree 89bhp is low but 68% is phenomenal, Just think if your bike or car or whatever machine has say 187bhp that goes to 314.16bhp combined with a cleaner more fuel efficient engine 

[fj1289]

When I was working at Koenigsegg ...

WHAT!?  HOLD ON HERE!

Any chance a few "prototypes" could make it out the door for the 2018 attempt at the Colorado Mile?.....

[gumby302ho]

Watch the valve float at about 1:36 when the springs start to turn....

https://youtu.be/nsa6kq-qqIE

You want the valves to turn like this so they do not pit the seat or the valve. It starts around :56

https://youtu.be/vcyT18qk8ls

Electric/oil/air valves eliminate this valve float...F1 has been using this technology for years. That is how a F1 engine can turn close to 20k plus

This shit is bad ass...CRANK UP THE VOLUME (click the boxes off the video if they pop up)
https://youtu.be/iWSt4CDNvgQ


Randy - RPM

 I believe F1 engines use nitrogen instead of air for valve actuator setup from what I have read, not sure of the benefits of either method.

[PaulG]

When I was working at Koenigsegg ....

And I thought you were just a gifted backyard mechanic.  Now you've blown your cover!   

  I believe F1 engines use nitrogen instead of air for valve actuator setup from what I have read, not sure of the benefits of either method.

I think they use nitrogen in their tires also.  Reason is that it expands much less under heat than air, thus maintaining a stabler tire pressure.  Maybe a related reason for the air valves? 

Heres a vid from MotoGP - a few years old now - but interesting still.

MotoGP Workshop™ - Pneumatic valve engines

An article related to the vid

How Pneumatic Valves Work in MotoGP

Now I know why they are making such insane amounts of horsepower now.  This would explain why these bikes are unrideable without the electronics.  Maybe we'll see another change in engine spec soon.  3 cyl max? 500-750cc?

But if they sounded like this I'd be happy if they only went 100mph
Honda RC166

[Mike Ramos]

Recently I was peeking under a cover at an unnamed motorcycle shop and noticed a FJ cylinder head with the cams missing and all the cam journals milled out and recessed into the head, some sort of strange valve actuators with small hydraulic lines running to them.
Hmmmm, no cams?

Then last week, I saw this in my news feed:  http://www.popsci.com/9-greatest-innovations-in-automotives-this-year

Further investigations: https://www.youtube.com/watch?v=f4p-55a3WV8

So any truth to the rumors an RPM Flux Capictor is in the works too? 

I was recently at the RPM shop and prompted by Pat's initial post I also looked under the covering:

Hmm.... not sure about a Flux Capacitor but Pat, if you had looked a little closer into the details,  perhaps you would have imagined the increased valve angle (blank head as in the V & H's drag bike) thus allowing for more modern flow characteristics - when coupled with the valve actuators mentioned I can imagine very impressive HP & torque numbers...

Thanks for the suggestion Pat, it keeps things interesting and light hearted.

Midget

[Russfjr1]

When I was working at Koenigsegg on the development of the powerplant all be it mostly v12 AMG we figured that with tweaking the tec we could knock off 4 cylinders thus using a v8, buy filling on board air tanks via pistons on over run with sufficient air pressure to take place of the turbos and give a rise of 34% power per litre. This we put to test on a Nissan Micra 1.0 made in 2001 with if memory serves 53bhp (at the engine not wheels). We made the head for it minus the cam and with a few other modifications to the inlet and exhaust tracks we managed 68% increase to 89bhp
OK i agree 89bhp is low but 68% is phenomenal, Just think if your bike or car or whatever machine has say 187bhp that goes to 314.16bhp combined with a cleaner more fuel efficient engine 

   Me working at Koenigsegg     who'd a thunk it      well you have to have a laugh now and again don't you    Sorry just a little porky pie, but I did do my apprenticeship at this little backwater company called Rolls Royce, now that place taught me a multitude. Looking back they were definitely the best days of my working life.  Happy days indeed    

[Pat Conlon]

https://www.youtube.com/watch?v=FJXgKY2O4po