Dont think it has been mass produced but i thought i would share this with you guys.

Click Here

 

That's pretty impressive.

 

Its a cool idea..

 

Thats pretty damn nifty.

Wonder how it is for forced induction...

 

There was an article about rotary valve engines in Racecar Engineering last year. Cool stuff.

 

this company has been around a long time- i wonder why it has not been picked up?
Imagine if this became the standard for engines- this company would be the next microsoft....
maybe investing a few thousand bucks wouldnt be a bad idea here...
-Randy

 

Seen that before...their problem is bearing and seal longevity at the "cams". And,I'm not sure if those guys have seen a poppet valve engine ever before...because they state " a poppet valve engine cannot open the valves before the piston has passed TDC"...yet almost every single ordinary car engine in the world does it. And,bikes now have rev-limits of 17 000 + rpm as stock...even seen Nissan RB26DET 2.6-litre straight-6 engines doing 14 000 rpm,so it's not the poppet valves that's restricting them,at least. What someone should make,is electronically actuated valve openers...some form of high-speed solenoid that would be 3D-mapped and could give you full,limitless control of the intake and exhaust phases...like a super-VTEC with infinitly adjustable lift/duration. Then you're talking..

 

^^^ they are working on it. Problem is the instantaneous power demands would burn up a 12 volt system. There is a move in the automotive industry to re-standardize at 48 volts, which may allow this technology to be feasible.

 

I am thinking its an investment scam. This would have been picked up by now if it were that stellar

 

I imagine cost is an issue. Although like anything else, costs would drop with mass production....

 

How about instead of electronically opening the valves you use a hydraulic or pneumatic solenoid instead? Same idea and you can run the pump right off the motor.

 

Why re-standardize? Couldn't they just run it through a capacitor or something to give the power needed,while keeping the 12V?

 

my understanding is, that the instantaneous current flow would need unrealisticlly heavy gauge wiring. There is not a whole lot of energy being used over all, but it does have to be delivered over an extremely short period of time. One of the other problems was achieving a soft valve closing, the solenoids tended to slam valves into their seats.

The restandardization isnt for the sake of electronic valvetrains, they would just be a beneficiary. The reason for the change is that the current electronics suites (entertainment, navigation, climate control, etc) are reaching the limit of what a 12V automotive generator can supply, current wise.

 

response time. The fluids (oil or air) reach a point where they are being asked to move faster than they can, and just sit in stasis. This is why the super high RPM engines cant use hydraulic lifters, they use solid. To get electrical stuff to respond faster you just throw more voltage and current at it.

 

Ford has some patents on electro-hydraulic valves that make sense. Additionally have some fun with this reference.

Laust