Laser Cylinder: Applications and Technology

Hi,

Has anyone of you heard about this before? What do you think about it? I find the idea quite interesting, but I doubt the theory about the oil change intervals a bit. Because the cylinder surfaces are just one lubrication point in the engine, and the oil also has to lubricate other things (like my turbo, for example). It reminds me of that unfortunate discussion about these new oil filters, where even changing the oil should become completely unnecessary.
Otherwise, considering fuel consumption, wear and tear, etc., it's certainly quite usable.

I am requesting opinions .

Chau.
Christoph.

Hi,

Omitting the oil dipstick is a brilliant idea... it actually increases the profits of workshops and manufacturers. As you mentioned, it's not just about that one location, and especially in turbocharger systems, oil can also be lost through the turbocharger itself.

The idea itself is great, but the conclusions further down in the article regarding the oil level are, in my opinion, nonsense.

Best regards,

Jan.

Mr. Lindner has created something remarkable using the "nuclear fuel rod recycling laser." I've seen photos from the electron microscope showing coated and uncoated tracks. It's astonishing what effects he achieves, and he does it without any boasting. The fact that it's being used in VAG engines (3.0) is certainly just the beginning.
However, even though "Zeit" is a good publication, the article is unfortunately not the best. I'm not even talking about the fact that they wrote that the cylinder liners are made of sheet metal...
Okay, I'm going to look for the URL of Lindner's chair. It details the entire history of the laser he acquired, seemingly out of nowhere, as if it were a gift from the heavens. Siemens built it, but the customer wasn't allowed to buy it...

matthiasTDI96 wrote:

However, even though the "Zeit" is a good publication, the article is unfortunately not the best.

Well, I already knew that this wasn't a technical article . My brother is currently studying at the University of Applied Sciences in Amberg, and he told me about this project just this weekend, so the article from "Die Zeit" came at just the right time...
I also did a little bit of Googling yesterday, but the only ones who actually provided some useful information were Sat.1, and believe me, their article was better than the one from Zeit .
It would still be great if you could find the link to Lindner!

Chau.
Christoph.

I just checked at the University of Bayreuth, where the idea originated. As far as I know, the head of the department was a Professor Bergmann, who unfortunately passed away at a relatively young age. I need to do some more research. There's also nothing about it on the VW website (similar to the situation with Audi 9). As far as I know, the laser is located in Györ (or something similar, where the TT is built), and the engine plant is somewhere in Hungary.
"When I'm home, I'll take a look and see if I can find something, but I can't promise anything yet."

Check this out; there are already a few PDF files here.

http://www.uni-bayreuth.de/departments/metalle/Publikationen/Veroeffentlichung.htm

As far as I know, the employees were Lindner and Queitsch.

"Ah, the 3.0 TDI has a dipstick, although it's a short, hidden version, but it's there! I just took a look at a Tuareg 3.0 TDI... a demo car at the company yard."

Since I work directly at the source as part of the Laser-Fuzzi (Laser Zentrum Hannover e.V.), I've selected this article for you as a brief summary.
The publications for the AKL 2002 are not yet available online as PDFs.
I could obtain a copy/scan of it for anyone who is interested.
Having a great time laser tag!
OlBe
P.S.: I find it ridiculous to suggest that such a measure could eliminate the need for a dipstick or oil level sensor. Firstly, there are countless other potential sources of increased oil consumption within the engine. Secondly, it's not a practical method for the average user to check and refill the oil at a gas station without a VAG-COM diagnostic tool.

Hello,


I was too lazy to read the article, but that doesn't mean I'm afraid to ask stupid questions.

'But isn't the laser treatment less effective over the long term compared to the initial break-in period?'
Will the cylinder eventually wear into a unique surface structure with the piston rings, regardless of the timing? In other words, what's the point of a polished brake disc if it's just going to get worn down anyway?


I just read it, so it doesn't mention a specific timeframe during which the wear reduction is effective?

No, in the case of honing, the piston ring always gives way due to the stresses involved. At least with this particular combination, there are no more running-in effects, or the piston ring adapts to the cylinder wall.
Stay cheerful.
OlBe.

Hi,

Mercedes has already experienced similar issues with missing oil dipsticks in a few engines not too long ago.
Parallel to the coolant temperature gauge that has been removed... In cars like these, it's absolutely acceptable, after all, somewhere costs have to be cut .

If I understand the surface treatment process correctly, as described in industry publications, the main purpose of the treatment is to allow the use of aluminum blocks without the need for bushings (= cost savings). With gray cast iron, there is little room for improvement in the honing process, as evidenced by the millions of engines that, when properly treated, are truly not oil-guzzlers. At best, it benefits car buyers who have never heard of the break-in period, and it saves the liter of engine oil that is consumed during the break-in. I, at least, find the potential savings in operation compared to a well-broken-in engine – where the surface roughness must also be correct for oil adhesion AND residual friction – to be questionable.

Well, compliance with emission standards is certainly not the main reason, but it's worth mentioning. Anything that isn't burned doesn't produce exhaust gases --> oil.