Exhaust Valve to: consumption of improvement

[Woodcutter]

Many engine manufacturers and equipment manufacturers work on electromagnetic valves (Valeo, BMW, etc ...)

Part of the future of heat engines probably goes there ...

[Obelix]

Hello,

And why not put a dynamic vortex valve at the exhaust outlet ???
Well, I explain because otherwise I will do ... ,, !!
What we call a dynamic valve is in fact a snail type turbine mounted upside down. The exhaust arrives from the side "in line" and the gas is released at 90 ° with the vortex effect as a bonus! And it is not reversible (valve)
No complicated assembly, it can pay big .....

Obelix

[Alain G]

Flytox

The system was patented by Rotax long before Yamaha.
For having raced, I know the system well.

Woodcutter

On a car it's as efficient as on a 2-stroke


Obelix

The Vortex favors the volume admitted into a duct for the same dimension, for admission it is correct and it can fool the intake temperature probe, as well as the vacuum probe.

The Vortex at the output gives absolutely nothing, the goal is to obtain the maximum torque at all revs without losing power at maximum revs.

To save fuel it is enough to make an exhaust restriction either on the muffler or by the valves as Honda does, keeping a quantity of hot gas inside the cylinder requires a lower quantity of air / fuel mixture ratio .
But beware, if there is too much restriction it overheats and blows the exhaust manifold crack as well as the cylinder head gaskets which take a good hit.

There are performance mufflers that balance the pressure to the exhaust with low and medium speed turbulance without compromising maximum power.

I use this kind of silencer which is very inexpensive and much more efficient than the beautiful stainless steel silencers. that just bother everyone.

[Flytox]

Hello Alain G

The system was patented by Rotax long before Yamaha.
For having raced, I know the system well.

You will not have doc on the Rotax system ?? Thank you.

The Vortex favors the volume admitted into a duct for the same dimension, for admission it is correct and it can fool the intake temperature probe, as well as the vacuum probe.

The Vortex at the output gives absolutely nothing, the goal is to obtain the maximum torque at all revs without losing power at maximum revs.

You will not have photos or an example of assembly, I do not visualize this assembly.
A+

[Obelix]

Hello,

For those who would like to experiment, this Vortex Valve already exists:
http://quantumgravitics.tripod.com/id7.html
It seems to have convincing results.
It does not change anything on the exhaust line and allows a quick return to the original conditions.


Obelix

[SixK]

Well this solution is more or less a AVEC;)

SixK

[Remundo]

Hello everyone,

I had done for the MPRBCthis state of the art of valve systems

If it helps you

[Obelix]

Well this solution is more or less a AVEC;)

SixK

Hello,

Well, you haven't read it all!
The first half yes, but the second half no!
It's completely different .......

Obelix

[bpval]

Hi Obelix

Obelix said
"SixK wrote:
Well this solution is more or less a AVEC;)

SixK


Hello,

Well, you haven't read it all!
The first half yes, but the second half no!
It's completely different ..... "
---------------------------

Explain ... it's so much better to synthesize ...
I'm interested ... it's different in what
I like people who in a few words teach me something

Go GO ... and thank you

Hello

[Alain G]

Hello Flytox

Here are links for the RAVE valve, very difficult to find info on this system.

http://motomarine.forumactif.com/mecani ... -t3999.htm

Last improvement of the system with consumption comparison.

http://www.brp.com/NR/rdonlyres/B804834 ... nderFR.pdf


When I talk about Vortex, of course I'm talking about AVEC.

Obelix

http://quantumgravitics.tripod.com/id7.html

this system is neither more nor less than an exhaust restrictor, but beware of overheating due to the compression of gases already very hot, consequence to predict cracking of the exhaust manifold and overheating of cylinder heads.

The pressure to be respected is 3 to 5 pounds / inch (208 to 345 mbar)