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Through Avio GE Owns The GTF Fan Gear Supplier

Tue Dec 25, 2012 11:40 am

GE has reached an agreement with AVIOs owners to buy AVIO (Turin Italy based mechanical company) who makes mainly gearboxes for turbfoans but also other engines parts. The deal still requires the typical authorities approvals but that should be no problem. The real interesting piece is that Avio was the PW partner who developed the GTF gearbox with PW:

I should be not to comfortable with this move by GE if I was PW  Wow! .
Non French in France
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RE: Through Avio GE Owns The GTF Fan Gear Supplier

Tue Dec 25, 2012 10:37 pm

Yes, I also noticed that. I'm not sure though if GE could get access to any IP related to the GTF. Since Avio had been dealing with GE for a long time, one would expect that Pratt would have made sure that any critical IP related to the GTF is protected through service level agreements and water tight contracts.

Also, the most important part in the GTF IP is not the gearbox hardware, but the aerodynamic matching of the cold section to the hot section (not only the LP spool, but also the HP spool!), matching the individual component efficiencies of the LP, HP compressor, and HP and LP turbine. Although GE does have excellent experience here, once one introduces a 3:1 ratio between the LPT and LP compressor, they will find themselves in uncharted territory since this is very far off the baseline of everything they have done before. This is where Pratt really holds the critical IP.

In any case, still this deal could make some folks at Pratt a little nervous.

BTW, Avio is not listed (any more?) as a P&W partner on the Pure Power website . . .

BTW2 IP = Intellectual Property

Immigration officer: "What's the purpose of your visit to the USA?" Spotter: "Shooting airliners with my Canon!"
Topic Author
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Joined: Tue Nov 30, 2010 7:44 am

RE: Through Avio GE Owns The GTF Fan Gear Supplier

Tue Dec 25, 2012 10:52 pm

Thanks PW100, good insights. I also know from Lightsaber that the critical gear knowledge partly is how to observe changes in tempereatures on oil etc to predict a failure or bad functioning gear some 400 cycles in advance. I can't help thinking however that the guys at AVIO have to be pretty thick not to grasp the sift of what it is important in such matters when they are the gear partner, it is virtually impossible to work together without the other guy understanding quite a bit of the bigger picture.

Having worked in high tech all my life and being pretty interested in understanding what the others including the competition is doing I know how little one needs to start to add 2+2 and get 4.
Non French in France

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