New engine technology to replace camshafts? Check out this video.

[peterljohnson55]

The Future of the Internal Combustion Engine - Inside Koenigsegg

Inside Koenigsegg provides for the first time, a look behind the scenes at Koenigsegg and examine how innovation within the highest echelon of sports car manufacturers will affect the broader automotive world.

http://www.youtube.com/watch?v=Bch5B...&feature=share

[Jack960]

that would be incredible. Could get an engine moving much faster without the timing belt/chain cam shaft restrictions. Wouldn't mind seeing a xr6t at 10000+ rpm!

[Uncle Niceguy]

more like 20000rpm Jack. it would make any modern engine look like something from the middle-ages

[Sox]

Originally Posted by Jack960

that would be incredible. Could get an engine moving much faster without the timing belt/chain cam shaft restrictions. Wouldn't mind seeing a xr6t at 10000+ rpm!

Originally Posted by Mr.NiceGuy

more like 20000rpm Jack. it would make any modern engine look like something from the middle-ages

An XR6T engine wouldn't rev any better at all, as the primary limiting factor in those is the undersquare bore/stroke ratio.

[mik]

Originally Posted by Jack960

that would be incredible. Could get an engine moving much faster without the timing belt/chain cam shaft restrictions. Wouldn't mind seeing a xr6t at 10000+ rpm!

would`nt be a bad thing to reduce the external dimensions on motors as well.

[cheap]

Not sure if you'd call it new, using actuators/solenoids/compressed air and even magnets have been attempted a few times before.

For example, Renault developed a pneumatic valve system (no camshaft) for their F1 engines in the late 1980's. The Renault system has proven so good that every F1 engine now uses pneumatic valves.

Will be interesting to see if the Cargines technology can make it to mainstream use.

[Yellow_Festiva]

Last year in Melbourne there was an expo of sorts (something to do with soccer) and there was a bunch of technical displays, one of which was an engine that functioned in a very different way to what is normal. Looked like a cross between a few different engines.

Took a video of it, will try and find it and post when I get home.

[Moby Vic]

Funny, I had the idea of solenoid-controlled valves way back in the '90s for reducing engine friction, but of course not a clue as to how to implement it.

[ivorya]

Don't they use or have used a similar system in F1??

[FPV GTHO]

F1 still has camshafts but has pneumatic valves instead of metal. MotoGP started using them too with the 800's.

[ryeman]

Weren't BMW using solenoids to activate their valves incl variable lift to control power ie ...small lift for idle, increasing for power.....forgotten what they called it...
VALVETRONIC?

[f1tzy]

Originally Posted by cheap

Not sure if you'd call it new, using actuators/solenoids/compressed air and even magnets have been attempted a few times before.

For example, Renault developed a pneumatic valve system (no camshaft) for their F1 engines in the late 1980's. The Renault system has proven so good that every F1 engine now uses pneumatic valves.

Will be interesting to see if the Cargines technology can make it to mainstream use.

I believe they do still use camshafts but they use air actuated valve springs (ie no actual spring)

[Angeldust]

Originally Posted by ryeman

Weren't BMW using solenoids to activate their valves incl variable lift to control power ie ...small lift for idle, increasing for power.....forgotten what they called it...
VALVETRONIC?

VANOS i think its called.

[DFB FGXR6]

VANOS is BMW's version of VVT / VCT

VALVETRONIC replaced the throttle body and programed the opening of the valves and direct injection to simulate a throttle.

[Jaxon]

Great vid, thanks for posting. I remember seeing a documentary on that company years ago & was very impressed with what they were doing back then. Hope they keep it up.

[kempy311]

Awesome vid its amazing what technology is around.

[turbodewd]

Who needs hybrids?! Petrol n pistons has a while to go it seems...

[Night]

I remember a F1 race in adelaide ages ago when Rubens drove for Jordan and he had to keep pitting to top up air for the pneumatic valves so something like this has been around for a while. What I find interesting is how he mentioned using an air tank to spool up some turbos or even driving the engine as an air engine for take off. This kind of technology could see some pretty hefty HP in future road car engines.

[Djrystofer]

Koenigsegg have always been extremely innovative
Love the idea, can't wait to see it put into production into little hatches and see the insane fuel economy/emissions benchmarks.

Can't see it being as reliable though.

[mash again]

have been discussing actuated valves with a mate for 10 years and no dought the car industry has been for much longer, but getting anything to survive in that environment long enough to be call reliable is probably the biggest hurdle, but infinate "cam" profiles changing with revs etc. or for economy and power would make for interesting tuning capabilities and no dought headaches.

OK i watched the video, Im sold where do i sign.

[XR_6falcon]

awesome stuff! good too see people still pushing the boundries with combustion engines

[Nikked]

And poeple think OHC is modern...

[Bossxr8]

Originally Posted by Nikked

And poeple think OHC is modern...

To GM, OHC is super futuristic.

[music189]

great link
bloody hell I just lost 1/2 hour looking at all the other stuff

[Buntz]

Originally Posted by turbodewd

Who needs hybrids?! Petrol n pistons has a while to go it seems...

Compressed air over electricity. Sounds like a winner to me.

No camshafts would be awesome. Think of the power to size ration engines could then achieve.

[2011G6E]

One thing that can't be overcome is piston speed...there's an upper limit to how far you can push that. It's usually overcome somewhat by having short stroke motors pushed to ridiculously high RPMs, but you still come up against a physical wall as to how fast you can make something move upwards, stop, then move back down again and repeat the process, no matter what exotic metals and materials are used inside the engine.

The figure is around 26 meters per second...I think 28mps is the theoretical maximum, and surprisingly this figure has been known since the very early days of the internal combustion engine. The highest street engine was in the Honda S2000 (25mps) and some drag cars apparently run up over 26 to 27, but that's about the mechanical limits.

[madmelon]

Just to Clarify, VALVETRONIC uses an electric stepper motor to alter the length of a lever on which the cam operates, thus altering the valve opening height. It doesn't alter duration. VANOS is the BMW word for cam phasing.