Camless Engine

[Benny02GT]

Here are some links on what might be the next generation combustion engine:

http://www.superrod.com/News.asp?ArticleID=44

http://www.autospeed.com/cms/A_0910/article.html

It's an awesome technology that can save money on the MPG & boost performance.

Benny

 

[SVTdriver]

This technology has been under developement for many years. There are several companies that have been working on it. Just like the article says. But at least right now other articles I've read. Don't have it coming anytime soon. Though with F1 now starting to use it. It may be coming within the next 10 years.

 

[Benny02GT]

I have read the technology may not be far away. It may come as early as 2008 for some european car manufacturer. It may be Mercedes or BMW. Who knows with the gas prices rising there may be a demand to push the technology in a shorter window.

 

[shatner saves]

Visteon is working on it as well. I would expect to see it in at least a high end vehicle within 10 years.

 

[Z28x]

I read a while back that International is working on a Cam-less Diesel.

GM is also rumored to be working on a camless V8 for the C6 Vette.

 

[RICKS]

Man, imagine what you can do with fully-computer-manipulated valve timing. A 500 h.p. motor that'll get 40 mpg on the interstate??

 

[shatner saves]

I read a while back that International is working on a Cam-less Diesel.

GM is also rumored to be working on a camless V8 for the C6 Vette.

International's system is hydraulic. With large truck diesels, the low rev's are more suitable and the weight penalty isn't as severe.

Camless on the C6? not likely. C7, maybe.

 

[Z28x]

International's system is hydraulic. With large truck diesels, the low rev's are more suitable and the weight penalty isn't as severe.

Camless on the C6? not likely. C7, maybe.

Some Info I found on the international camless engine: http://www.dieselnet.com/news/0004navistar.html

The GM Camless V8 was to be out in the Vette towards the end of the decade and be in a special edition Vette, ZR1, Z06, or what ever they call it.

 

[PoorYuppie]

Why waste the electricity or energy to power pnuematics or hydraulics?

http://www.coatesengine.com/
They were able to rev a 5.0L to 14k rpms with these heads.

 

[GreyGoose]

Read this....... it's gonna make you love for and what kind of Mustang Engines we will have soon..........

http://articles.findarticles.com/p/articles/mi_m3012/is_5_180/ai_62685781

 

[shatner saves]

Why waste the electricity or energy to power pnuematics or hydraulics?

http://www.coatesengine.com/
They were able to rev a 5.0L to 14k rpms with these heads.

I saw an article in machine design on these guys about 10 years ago and I think there was a fly-by-night engine manufacturer in F1 using rotary valves back in the mid eighties. It's a hell of a good idea, but I suspect materials technology and manufacturing processes have yet to catch up with it to meet the durability requirements for passenger cars.

I'd be interested to see how the motorcycle does.

 

[Blk01gt_]

Read this....... it's gonna make you love for and what kind of Mustang Engines we will have soon..........

http://articles.findarticles.com/p/articles/mi_m3012/is_5_180/ai_62685781

That article is way off the mark. They said camless engines would be in some 2003 ford trucks and vans. It's 2004, and i haven't heard of any ford vehicle with a camless engine.

 

[SVTdriver]

Why waste the electricity or energy to power pnuematics or hydraulics?

http://www.coatesengine.com/
They were able to rev a 5.0L to 14k rpms with these heads.

I emailed them nearly 2 years ago. And they told me they were getting out of the car engine market. They would sell the technology but noone was buying. They did a 5.0 and got like 200 hp just buy adding those heads. I think it was 15-1 compression though. My only real question is. Since there is no valve cover. And the valves remain open to take in air. How do you keep things out of the combustion chamber (The reason we have air filters).

 

[shatner saves]

No valve cover? There is a cover.

 

[SVTdriver]

No valve cover? There is a cover.

This is from there own website. The motorcycle engine looks like it has covers. But they say absence when they talk about the automotive heads.
CLEAN ENGINE BLOCK AND COMPARTMENT:
• No oil leakage from the valve cover
• No coolant leakage from the cylinder head/gasket
• No need for valve cover ventilation

FLEXIBILITY OF AUTO-BODY STYLING:
• Low overall height- Absence of valve cover
• No water jacket in upper portion of the cylinder head
• Compact and clean engine package

 

[shatner saves]

This is from there own website. The motorcycle engine looks like it has covers. But they say absence when they talk about the automotive heads.
CLEAN ENGINE BLOCK AND COMPARTMENT:
• No oil leakage from the valve cover
• No coolant leakage from the cylinder head/gasket
• No need for valve cover ventilation

FLEXIBILITY OF AUTO-BODY STYLING:
• Low overall height- Absence of valve cover
• No water jacket in upper portion of the cylinder head
• Compact and clean engine package

The reason there is no oil or coolant leakage is because there is no coolant or oil circulating in the heads. There is still a piece that bolts to the top of the assembly to retain the spherical valve shafts and seal the assembly. Beyond the heads, the induction system is quite conventional.

You also mentioned 15:1 compression. This is one of the big potential advantages of this design. Because the portion of the "valve" that is exposed to the combustion event is only present *during* the combustion event and has a chance to cool before it swings back around, the chances of pre-ignition is greatly reduced. The flow potential of this design is incredible as well because it eliminates one of the main drawbacks of conventional poppet valves: even when the valve is open, it's still in the way.

I've been a big fan of this design for a long time. I hope they can make it work.

 

[SVTdriver]

I have also been a fan of the design. Which is why I emailed them about trying to get a set of heads. But you missed the

• Low overall height- Absence of valve cover

And yet the photo shows "valve covers" If there isn't something covering them. Why do they show it in the picture?

 

[shatner saves]

I have also been a fan of the design. Which is why I emailed them about trying to get a set of heads. But you missed the

• Low overall height- Absence of valve cover

And yet the photo shows "valve covers" If there isn't something covering them. Why do they show it in the picture?

Yes, overall height is much lower. Those parts on top aren't valve covers in the conventional sense, who's function is primarily to keep oil in and debris out. They are more like the top half of a split cylinder head. Note the intake ports.

 

[Mr Black]

That company has pretty much been shown to be a fraud.......I think one of the guys on StangNet tried to meet up with the owner and kept getting the runaround. Plus the SEC had him under investigation for securities fraud. Not too encouraging....

 

[Roots66]

Here's another technological advancement we haven't seen yet. The 42 volt auto system. Basically, everything from the A/C to the brakes are operated electronicly. This leaves the engine free to do nothing but push the car.

http://articles.findarticles.com/p/articles/mi_m3012/is_n8_v178/ai_21075825