[rustynutz]

A Victorian company is working on a technology with potentially major implications for future petrol and diesel engine design.

Warrnambool-based engineering consultancy Dynex has come up with a piston design that eliminates the spring-metal ring traditionally used to form a seal between the piston and the wall of the combustion chamber.

“That’s long been seen as essential in maximising compression and combustion efficiency,” Dynex CEO Brian Trigg told motoring.com.au.

“But our work so far suggests otherwise – that an absolute seal isn’t that important, and eliminating the friction generated by the rings on the cylinder wall can have far-reaching effects on engine design on the whole.”

The key to the technology lies in the replacement of metal rings with “virtual rings” of air pressure, created by the movement of air through grooves in the side of the piston.


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[Dazzler]

Where's the "exciting stuff" smiley? 

[Shambles]

Impressive.

[The Gonz]

Where's the "exciting stuff" smiley? 

[Doggie 1]

Wow, that's a big one Gonz. 

[Asterix]

That's interesting.

The loss of heat produced, will that mean there will be a need for an auxiliary heatsource..

Yeah, I know, not a problem for you Oz guys, but here in the cold North we need some heat to thaw the cars in the winter... 

[Phil №❶]

I won't be pressured into believing this until I see it in action. 

[Phil №❶]

That's interesting.

The loss of heat produced, will that mean there will be a need for an auxiliary heatsource..

Yeah, I know, not a problem for you Oz guys, but here in the cold North we need some heat to thaw the cars in the winter... 

I doubt it, the fuel still gets quite hot during combustion.

[The Gonz]

The pressure law states that for a given volume, pressure and temperature are directly proportional. By increasing pressure to an ideal point, sufficient temperature will be developed to sustain combustion. With computer controlled pressure (go figure!) we can have one engine taking on all fuels.

[FatBoy]

The pressure law states that for a given volume, pressure and temperature are directly proportional. By increasing pressure to an ideal point, sufficient temperature will be developed to sustain combustion. With computer controlled pressure (go figure!) we can have one engine taking on all fuels.

Like a gas turbine?  They can burn any combustible fluid.

[Ugly Mongrel]

What happens to all that air pressure when you're pissednbroke?

[FatBoy]

What pissden?  I'm broke, but that's only cos I spent my money on beer.  Oh I see, I get it now.

 

[eye30]

I'm broke, but that's only cos I spent my money on beer.

 

And tight or is that loose women in aberdeen.........

[FatBoy]

I'm broke, but that's only cos I spent my money on beer.

 

And tight or is that loose women in aberdeen.........

No, they gave it away, freely.