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Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: BGA on May 22, 2017, 06:55:18 am

Title: Mechanical VNT control. Latest evo? Libbystyle?
Post by: BGA on May 22, 2017, 06:55:18 am
In another forum I put this question, but no replay.:

"Re: Mechanical VNT Turbo Vane Control
Post  by BGA Thu May 18, 2017 7:37 am

Libby wrote:
"Re: Mechanical VNT Turbo Vane Control
Post by libbybapa Fri Dec 14, 2012 10:16 am

Here are some design drawings of an updated design that eliminates the need for the spring in the linkage rod by always allowing the accelerator lever to return to idle regardless of vane position and boost can position".

Pics are in ( I think) : http://s13.photobucket.com/user/libbyba ... t=3&page=1

Does he mean pics with white background (can with tangential moving) or the ones with black background ( can with axial moving, often seen in other control systems, Libby, Rock3tman) ?
Has the "tangential moving can ever been built? Result?

I moved my question here in hope someone can give a hint.
Title: Re: Mechanical VNT control. Latest evo? Libbystyle?
Post by: libbydiesel on May 22, 2017, 08:22:15 pm
Yes, the tangential movement would eliminate the need for the spring in the rod.  Nope, never built it. 
Title: Re: Mechanical VNT control. Latest evo? Libbystyle?
Post by: BGA on May 23, 2017, 07:51:14 am
Thanks Libby!
I have made some remarks on your drawing. Are they okey?
(http://i66.tinypic.com/2qswep4.jpg)

My VNT lever works in oposite direction to your drawing so I have to swing the can around.
(http://i67.tinypic.com/2na4pk5.jpg)
Title: Re: Mechanical VNT control. Latest evo? Libbystyle?
Post by: libbydiesel on June 19, 2017, 07:03:23 pm
It would need some sort of guide bushing. 

With a cable vs. solid linkage rod, what will push the vanes to the open position?