Camless Engine?

[Freebird]

I think that this is very interesting. I saw something on it a while back but had forgotten about it. If reliable, it could be game-changing I think.

 

http://www.foxnews.com/auto/2016/11/21/revolutionary-camless-engine-moves-closer-to-production.html

[snyper316]

That would be very different, and very interesting to see.

[Yammer Dan]

Interesting...makes my head hurt!! Would take shade tree out of the pic. I've done a lot of thinking about ways to change the valve trains and just :bang head: It gets real complicated real quick!! I just wanna go back to that first engine I rebuilt. A old 216 Chevy from a 1951 model. I got to understand it pretty well. Then things went to HE**.

[djh3]

Shoot I had camless engines way back in the late 60's early 70's. They were called 2 strokes. LOL

[rbig1]

that's very interesting and could be programmable. The only thing that would bother me is pneumatic activators. Ice in lines in winter. Would rather see hydraulic or electric activation. Would it pass emissions. Still running on dino fuel.. Very cool

[Yammer Dan]

that's very interesting and could be programmable. The only thing that would bother me is pneumatic activators. Ice in lines in winter. Would rather see hydraulic or electric activation. Would it pass emissions. Still running on dino fuel.. Very cool

 

I'm thinking electric. Just seems it would be more reliable. Hydraulic would have to be electric assisted anyway???

[djh3]

A write up I saw did sa whatever that manufacture was (Toyota or Nisan I Think) was leaning the electric actuator route. To me that makes more sense also.

[rbig1]

Well diesel engines can run injectors at 2500 psi oil pressure and fire with wire. So its already in use just not valves. All they will have to do is slow down the stroke of the valve replacement some how. I don't see why they would bother. Unless make it run on different fuels or compost. Give them something to scratch there head. Sick thought out house power.

[stroker ace]

I still drive a camless engine 2008 turbo Mazda RX7

 

Formula 1 experimented with the actuators several years back

[CaseyJ955]

Awww I just LOVE 2 cycle and Rotary engines, either of which perform admirably well.

 

Whichever way it goes, pneumatic, hydraulic or electric it should be very cool. My guess is you could use any of those. I wonder what spring pressure vs a conventional camshaft engine. I also wonder what happens when these things wear and need to be replaced, how labor intensive would that be. On my current car the intake has to be removed to replace the starter since it resides between the cyl heads in the valley. I wonder if any service of this system would require pulling apart the top half of the engine or just the VC. Abolishing the venerable timing belt service intervals would sure as hell be nice though, wouldn't it?

[Freebird]

Looks like Mazda may be bringing back the rotary. For a different use though. Apparently, they are thinking of using a small version to run a generator to recharge the batteries of a hybrid.

 

http://www.foxnews.com/auto/2016/11/23/mazda-rotary-engine-returning-in-2019.html

[wrnchjox]

I have heard it rumored that cummins built a camless diesel and test ran it at pikes peak

[stroker ace]

http://scarbsf1.com/valves.html