Two Stroke Motocross

Two Stroke Motocross Forum => General Two Stroke Talk => Topic started by: scooter042 on January 27, 2011, 09:05:23 PM

Title: carbon-carbon 2 stroke piston/cylinder ringless
Post by: scooter042 on January 27, 2011, 09:05:23 PM

Ringless. Minimum piston/cylinder expansion differential. 30% lighter reciprocating mass. High thermal loads. Longer lasting. HIGH RPM.

NASA tech brief, Aug 2002
http://findarticles.com/p/articles/mi_qa3957/is_200208/ai_n9131598/?tag=content;col1 (http://findarticles.com/p/articles/mi_qa3957/is_200208/ai_n9131598/?tag=content;col1)

What is required to make a piston and cylinder from carbon-carbon?

Discuss...

Title: Re: carbon-carbon 2 stroke piston/cylinder ringless
Post by: riffraff on January 27, 2011, 09:41:57 PM

Quote from: scooter042 on January 27, 2011, 09:05:23 PM

What is required to make a piston and cylinder from carbon-carbon?

Discuss...

I don't know what it will take but I know I like it, that article mentioned the proposed motor would be AIR COOLED     ;D

Title: Re: carbon-carbon 2 stroke piston/cylinder ringless
Post by: SwapperMX on January 28, 2011, 02:39:15 AM

Quote from: scooter042 on January 27, 2011, 09:05:23 PM

Ringless. Minimum piston/cylinder expansion differential. 30% lighter reciprocating mass. High thermal loads. Longer lasting. HIGH RPM.

NASA tech brief, Aug 2002
http://findarticles.com/p/articles/mi_qa3957/is_200208/ai_n9131598/?tag=content;col1 (http://findarticles.com/p/articles/mi_qa3957/is_200208/ai_n9131598/?tag=content;col1)

What is required to make a piston and cylinder from carbon-carbon?

Discuss...

I would think that it would be un-realistically expensive to start with !!

Title: Re: carbon-carbon 2 stroke piston/cylinder ringless
Post by: TMKIWI on January 28, 2011, 11:26:10 AM

Sounds like what designers have tried with ceramics.
I like the bit about less piston rocking on four strokes.
But wouldn't they need skirts first. ;)