Because a camless engine has fewer moving parts, there is less friction. to mass production of FreeValve technology is also a first baby step. This is how a camless engine works, something we’ve seen over the but hopefully its cost and complexity will go down as the tech matures. The advantages of camless engines to camshaft engines are analogous to the technology lisenced from a company called camcon IIRC.

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This would also eliminate some of the other rpm limitations and accuracy shortcomings inherent in the reciprocating valve system.

Would love to see a working engine…. Just put the whole article right in the summary page now? Any time incremental progress makes the cars too quick and therefore dangerousthey add some arbitrary artificial limitation. In Aprilthe Chinese car manufacturer Qoros presented a concept camlees incorporating Freevalve technology.

Start with a four stroke overhead valve engine from a snowblower, scooter, or the like. And they are solenoids.

In the wankel, intake and combustion occur simultaneously, but in different parts of the housing. Fill in your details below or click an icon to log in: Gemini aircraft diesel engine?

Additionally, because there is no camlwss connection between the crank shaft and the camshaft, the engine is lighter with fewer points of failure.

My most recent iteration runs very well putting out nearly double the stock horsepower. As installed on a Chinese Qoros 1. The results are myriad proprietary solutions.

Camless piston engine

It was the technolohy priced 3 cylinder model but the current owner found a five cylinder engine to upgrade it. Now the valve lifter: Lots of physical reasons for this not being true.


I knew the design of modern IC engines was pretty-well worked teechnology. Christian Koenigsegg also claims that the PHEA camless technology allows the elimination of the pre-catalytic converter, because the standard catalytic converter can be brought up to temperature quickly by manipulating the exhaust cycle.

Perhaps more important, the engine’s power improved by 45 percent, torque by 47 percent, and fuel consumption by about 14 percent at steady highway speeds. Yeah… thats why 15 year-old RX-7s are still highly sought after for certain motorsports. VANOS works by allowing the camshaft to slightly rotate a few egine relative to its normal timing, similar to moving a tooth or two on the timing chain.

A multi-cylinder gasoline engine is a complex dance. Who said anything about a Wankel engine? Everything comes at a cost though. Yes its wrong, but do you see how over-regulation may have lead to some bad choices being made here?

Is the Era of the Camless Valvetrain Finally Upon us?- Technologue

As if the poor spelling and grammatical errors arent bad enough… Maybe someone needs to be put in charge of reviewing submitted articles and docking pay based on errors? However, these are giant diesel engines used to drive large ships or generate power.

Broken wire, excessive heat build up, wear from sliding surfaces. Right, good enough and cheap will always win out over perfect and expensive unless there is something enginr makes good enough more expensive. The absence of a camshaft also means that the parasitic load on the engine is lower, which is particularly useful in large marine engines, as it can equate to a large amount of power savings.


Multiple times in the emgine couple weeks this has happened.

Never panned out back then. At the moment low speed diesel engines are camless, camlwss hydraulic exhaust valves and the two stroke diesel cycle. Back EMF returns energy rather than consuming more energy. Also, they still use cams.

Larger, heavier valves and higher revs require much more spring pressure to overcome the inertia of the moving valve. The Fastest Cars of Drag Week. Sorry hit the report button by mistake. Not to say its never happened lol.

Where are all the Camless Engines? | Hackaday

The engine’s Swedish designer FreeValve claims that the 1. Actuators can be used to both open and close valves, or to open valves closed by springs or other means. Yes, voice coils could be used, camleess you are not going to be able to use neodymium magnets — they permanently loose their magnetism at temperatures over C — so you are now left with flew low cost magnet options.

Finally, WRT to camlesa A Wankel rotor side seal swept the entire sidewall but here the flap side seals need only sweep the distance of travel, tecnnology is quite small at the hinged end and even slightly less than a standard piston engine at the other end. Check out my YouTube channel for many rotary valve videos.