Friction Wheel

[Dsport]

Can some one please tell me what a friction wheel is and is it a big job to change.

[cyclone]

imagine there talking about your crankshaft or an accessory pulley.

[Bigfeet]

Friction wheel, is that not what trains have?

[chiefnerd]

Only thing I can think of a friction wheel being used for is regenerative brakes where they can charge the battery on hybrids from the brakes...can't think of anything else but in technical terms your disk brake is a friction wheel in that the pads apply friction to it thus stopping your car.

[cyclone]

Only thing I can think of a friction wheel being used for is regenerative brakes where they can charge the battery on hybrids from the brakes

My understanding is that it doesn't work like that. The elect motor that would drive the wheels is used as a generator that uses the motion from wheels to drive it there by acting as a braking force on the car.

[chiefnerd]

There's 2 types- 1 works like an alternator the other converts heat

[cyclone]

Hmm. Hows that work?

[chiefnerd]

God knows- relatively old system though, they've used scaled up versions to convert heat from big diesel alternators like that for a long time but that uses a weird expansion chamber- I imagine a similar system is in place on the hybrids with a fluid expanding and an impellor and expansion chamber- no idea what fluids are involved though

[cyclone]

ok. neat idea.

[chiefnerd]

Clever sods these days...I love the magnetic fluid suspension- awesome concept. Then you have the stuff like the F1 designer behind the McClaren now designing a city car with in excess of 100MPG from 1l and also totally green from the manufacturing up- weird thing- 1 seat up front, 2 behind but smaller and thinner than Smart

Where in Saudi you based? I hate that dump but the Sid used to make it bearable on business trips from Dubai

[cyclone]

Based in Riyadh, Ha Ha, Sid guaranteed hangover!

Looking around the net seems cars using mostly motor/generator or flywheel kinetic energy storage concepts.

[chiefnerd]

There's a mix of them, I don't really know what's gained popularity (just like the technologies) but kinetic is alot easier to manufacturer than friction. Maybe the friction wheel he's on about might just mean the brake disc- that's all one is afterall

[cyclone]

Too true, wish people would just call stuff what it is instead of trying to sound intelligent.

[chiefnerd]

Damn right- I own a company that works on the internet (SEO) and you should hear some of the garbage that's floats around being used to try and confuse people. We get tons of clients because we don't use geek speak- we just tell them as it is without any BS

[Bigfeet]

Too true, wish people would just call stuff what it is instead of trying to sound intelligent.

^ Nothing wrong with that!

I quite enjoy referring to my pencil as a High-Altitude-Writing-Stick!