04-30-2014, 11:48 PM
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#1 (permalink)
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...beats walking...
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Toyota makes new EV engine
Last edited by gone-ot; 05-01-2014 at 12:54 AM..
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Other popular topics in this forum...
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05-01-2014, 12:18 AM
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#2 (permalink)
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(:
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Lots of goodness there- hopefully it gets realized.
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05-01-2014, 12:32 AM
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#3 (permalink)
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In Lean Burn Mode
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Very cool 
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Pressure Gradient Force
The Positive Side of the Number Line
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05-01-2014, 09:13 AM
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#4 (permalink)
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05-01-2014, 09:18 AM
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#5 (permalink)
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Posted on this site in late 2011. There are probably older posts here. Supposedly 56% thermal efficiency.
http://ecomodder.com/forum/showthrea...l-18815-3.html
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05-01-2014, 09:20 AM
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#6 (permalink)
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Also, OMG, it's a two stroke. That should bring on a fiery debate, something I have been advocating for a decade.
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Mech
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05-01-2014, 09:46 AM
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#7 (permalink)
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I think ring reliability is a problem with two strokes but there's no reason you can't pair up pistons and have a 4 stroke version of this. The potential problem area I see is the magnet, which would be undergoing quite a lot of stress unless the displacement is high and the piston moves relatively slowly, and also cooling (Curie temperature).
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05-01-2014, 12:09 PM
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#8 (permalink)
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Batman Junior
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I looked at this and first thought was ... 2-stroke diesel pile driver!
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05-01-2014, 01:24 PM
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#9 (permalink)
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Cool engine design, but the thread title is oddly worded - this engine would be used in a hybrid car, by definition. It would make sense to have it in a plugin hybrid - and it would be a serial hybrid, by definition.
It bypasses the whole crankshaft / offset vector problem, and it has no camshaft, or valve springs, either. Much lower parasitic losses. I wonder if it uses a magnetic or an air spring to return the piston to TDC? Edit: it is a gas spring - I shoulda' read the whole article.
It does appear to be a 2-stroke but it also has electrically (pneumatically?) actuated valves, so it is unlikely to "leak" unburned fumes out through the exhaust.
More info here: http://www.greencarcongress.com/2014...0422-fpeg.html
Last edited by NeilBlanchard; 05-01-2014 at 02:50 PM..
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05-01-2014, 08:46 PM
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#10 (permalink)
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