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help needed! re;piston design
Aidanb - 9/5/04 at 05:50 PM

Does anyone know a site, or happens to have information about any piston relating to;
material,
expansion,
crown,
friction-reduction,
rings,
and anything about the conrods that are used with them.

This is desperately needed for an assignment due in very soon!

Metal Hippy - 9/5/04 at 06:01 PM

Oops...

flak monkey - 9/5/04 at 06:34 PM

material; commonly aluminium alloy these days (which one is anybodies guess).

expansion: look up coefficient of thermal expansion, it all depends on the material....

crown: can be flat or profiled, depends on valve train geometry etc

friction-reduction: oil....

rings: several...compression rings and oil ring.

Conrods in performance applications are forged, in normal conditions they are cast. Commonly forged ones are made of EN24T steel.

Not a lot of info im afraid but its a start i spose!

Cheers,
David

Dave Ashurst - 9/5/04 at 06:45 PM

Aidan

I can't be bothered to type in all the highly informative websites I just found with a simple Google search in the last 2 minutes, because presumably you already found them.

There seem to be loads, but you need to pick and mix.

good luck
Dave

Aidanb - 9/5/04 at 08:15 PM

cheers, though I need the information to be specific to a certain piston, not general information if you know what I mean.

Will have to look out for your locost, my college is in leamington.

stephen_gusterson - 9/5/04 at 08:32 PM

quote:
Originally posted by Dave Ashurst
Aidan

I can't be bothered to type in all the highly informative websites I just found with a simple Google search in the last 2 minutes, because presumably you already found them.

There seem to be loads, but you need to pick and mix.

good luck
Dave



subtle that one dave

Its suprising how many questions can be answered by a simple google search, and peeps just dont do it


atb

steve

Aidanb - 9/5/04 at 08:48 PM

I did, and am still doing searches. This is not a generalised subject i'm looking for, and as its coursework its not the sort of thing where answers are readily available on google.
I was on the site earlier looking for information for an unrelated matter, and posted this after starting searches elsewhere, assuming some people on here had information they'd be willing to share.

stephen_gusterson - 9/5/04 at 09:08 PM

Have you tried looking at piston manufacture sites (hepolite is the only one I remember) for info - you may need to call them and ask for data sheets or summat.

As you are asking for specific info on a specific single piston, that may be the only way to go.


atb

steve

ned - 10/5/04 at 08:47 AM

AE, accralite, omega make pistons, arrows make nice steel rods..

Ned.