mag/lev turbo bearings, why hasn't it been done
#11
Re: mag/lev turbo bearings, why hasn't it been done
Originally Posted by Obscene_CNN
Keeping the compressor and turbine wheels 30 mils away from the housings would be very difficult with mag lev. You would just have to hit a bump with your car and "screeeeeeeech".
#13
Re: mag/lev turbo bearings, why hasn't it been done
Roller element bearings are almost friction free already, plus they are cheap as hell.
Also, magnetic bearings would require a super fine control of the gap between the shaft and the housing. Metal expands and contracts way too much with the heat ------ of like 1000 degrees that the senter section sees. The size of the hole would keep changing each time you heat the turbo up with a little boost.
Correct me if I'm wrong, but don't magnetic bearings require a lot of electricity to energize? That could be another issue.
Good thinking, though. I like mag bearings.
Also, magnetic bearings would require a super fine control of the gap between the shaft and the housing. Metal expands and contracts way too much with the heat ------ of like 1000 degrees that the senter section sees. The size of the hole would keep changing each time you heat the turbo up with a little boost.
Correct me if I'm wrong, but don't magnetic bearings require a lot of electricity to energize? That could be another issue.
Good thinking, though. I like mag bearings.
#15
Re: mag/lev turbo bearings, why hasn't it been done
Originally Posted by spekter
Roller element bearings are almost friction free already, plus they are cheap as hell.
Also, magnetic bearings would require a super fine control of the gap between the shaft and the housing. Metal expands and contracts way too much with the heat ------ of like 1000 degrees that the senter section sees. The size of the hole would keep changing each time you heat the turbo up with a little boost.
Correct me if I'm wrong, but don't magnetic bearings require a lot of electricity to energize? That could be another issue.
Good thinking, though. I like mag bearings.
Also, magnetic bearings would require a super fine control of the gap between the shaft and the housing. Metal expands and contracts way too much with the heat ------ of like 1000 degrees that the senter section sees. The size of the hole would keep changing each time you heat the turbo up with a little boost.
Correct me if I'm wrong, but don't magnetic bearings require a lot of electricity to energize? That could be another issue.
Good thinking, though. I like mag bearings.
#16
Re: mag/lev turbo bearings, why hasn't it been done
Hence the use of the word "almost". A good roller element bearing will transmit almost no torque when propperly lubricated. They don't suck until some jack *** cokes the oil or gets a bunch of ---- in the oil and chews up the elements.
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