ESE's works engine tuner

[TZ350]

Now the Ryger info is coming out, Team ESE is developing their new action plan.

[tjbw]

Now the Ryger info is coming out, Team ESE is developing their new action plan.

HAHA, good cartoon

[TZ350]

HAHA, good cartoon

Making ambitious plans and suffering the consequences of reality has been the story of our life lately ....

[tjbw]

Thank you again Frits, Now would you talk us through this masterpiece. What are we missing?
For example where are the 11 transfers? Or are we saying each transfer has two ports, one in and one out. So that would be five transfer passages and one slot?
The rings certainly look like they touch the piston by the shinny top surface of the ring we see exposed.
There must be fine detail we are missing?

The cylinder development drawing shows 1 exhaust port and 11 transfer ports ( counting both ends).

I think the port below the exhaust feeds 2 further ports inside the exhaust.

However the cylinder section drawing doesn't show that transfer port below the exhaust, but it does show something in the exhaust!

Regarding the rings not touching the piston, I think perhaps something got lost in translation.

[m4r]

regarding those lines in the exhaust duct, couldn't it be as simple as left overs from an auxiliary port someone forgot to remove from the drawing?

[seymour14]

Making ambitious plans and suffering the consequences of reality has been the story of our life lately ....

Yes, whoever dreamt up reality needs a reality check...

Still we keep on dreaming...

[mike schmidt]

regarding those lines in the exhaust duct, couldn't it be as simple as left overs from an auxiliary port someone forgot to remove from the drawing?

My vote is they are left over from original drawing.

Michael

[ken seeber]

A couple of Ryger observations:
1. The primary drive and gearbox ratios are exactly the same as the VM engine on which it is based
2. The exhaust is also very close. All the 14 cone diameters are the same, both at the start and finish. The inside cone lengths are all the same, other than #2 which is a few mm longer. However The total outside length of cones #1 to #5 inclusive is 181.7 compared to 222 for the VM exhaust. I guess this will have an effect, including straightening out the pipe. Cones #7 and #9 also vary a tad, but within a bee's dick.

[F5 Dave]

Honey or Bumble?

I think I'll need one of those clear plastic boxes crank the handle and see the engine turn to even begin to understand how this works.

[tjbw]

Attachment 319007

Might be hard to see.
But red arrow show where I´m left wondering.
How is it flowing enough to get above 5hp?
Is the homologisation papers edited to hide things?

As this 'pipe' that protrudes into cylinder goes full circle, in that way it restricts flow quite a bit.
That 'pipe' is the holder for the seal as I understand it, that seals off the crankhouse from the small 'pumphouse'.

I agree, it seems that part of the drawing is not to scale. Also, the drawing of cylinder development doesn't match the section view of cylinder (transfer inlet under the exhaust not shown on section).

[Leed]

drawings seem pretty close

doesn't help building a model though either - features can still have questionable function



the groove in the plate is to accommodate piston skirt - doesn't go all the way through

Haha just realised my cylinder is on backwards

[lodgernz]

Attachment 319007

Might be hard to see.
But red arrow show where I´m left wondering.
How is it flowing enough to get above 5hp?
Is the homologisation papers edited to hide things?

As this 'pipe' that protrudes into cylinder goes full circle, in that way it restricts flow quite a bit.
That 'pipe' is the holder for the seal as I understand it, that seals off the crankhouse from the small 'pumphouse'.

That drawing shows the cylinder tight against the protruding seal holder, but in other pictures there is room for the upper piston exhaust port slide cover on one side of the seal holder.
Looks like 5 or 6 mm, maybe more. I'm sure that gap will be consistent around the perimeter of the seal holder and cylinder.
Still not a lot of space for good transfer flow, but of course the gas is under pressure entering those lower ports.

[J.A.W.]

Honey or Bumble?

I think I'll need one of those clear plastic boxes crank the handle and see the engine turn to even begin to understand how this works.

Kudos for a frank self-appraisal - of your technical subject comprehension capacity - there, dyno-Dave..

As 'Dirty' Harry .Callaghan was wont to remark.. "A man has gotta recognize his limitations"...

As for the 'Ryger' - lets see a dyno chart, please...

[F5 Dave]

So will this thing stall, or not start under 10,000?

Who`s going to be the first to tell him to raise the exhaust port floor?

[MotleyCrue]

I suppose the patent might explain it all at least a little better than just the pictures. Anyone found it now that it has gone through the patent process ?