"BJohnson11" (brettjohnson01)
02/01/2015 at 11:23 • Filed to: None
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"BJohnson11" (brettjohnson01)
02/01/2015 at 11:23 • Filed to: None | 2
| 2 |
So I'm taking the internal combustion engine design class on campus (Cal Poly is a great school), so I thought I'd share some of what we've done. We've ran two of the engines, both single cylinder thumpers. One is the cooperative fuel research engine which has variable compression ratio. It has a whole bunch of sensors hooked up, and the main goal is to be able to see how compression ratio effects power and efficiency and emissions for different fuels used.
Real time P-theta diagrams!
The other engine is a glass engine we ran on ethanol and gasoline. The cylinder wall is made of Pyrex, and we measured fuel consumption vs. Power at different rpm, as well as observed how timing effects flame front and combustion in the combustion chamber. Some really cool stuff, and a unique opportunity to actually see combustion happen. I'll work on getting the video of this up as well.
DrScientist
> BJohnson11
02/01/2015 at 11:37 |
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looks like some carbon buildup waiting to happen there. better get the seafoam!
but really... sweet setups. nice to see some of you young guys getting into this. and that pyrex setup is probably a great learning tool. whats the piston made of in that setup, and what is used for lubrication?
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BJohnson11
> DrScientist
02/01/2015 at 11:53 |
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Not sure what the piston is made of (probably aluminum), and for lubrication, I believe the piston rings are graphite and offer some lubrication. No fluid lubrication though.