01-25-2012, 06:02 PM
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#101 (permalink)
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Master EcoModder
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One of the reasons 4 cylinder otto cycle is desirable is the harmonics of induction and exhaust, IE the intake pulses and exhaust pulses are fairly easy to maintain a relatively smooth air flow on intake and exhaust. 2 cylinder 2 stroke would be close to the same with half the cylinders and the same number of combustion strokes.I'm not talking about the traditional 2 stroke, but the more modern fuel injected 2 strokes than do not need oil mixed in the fuel.
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Mech
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01-25-2012, 07:50 PM
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#102 (permalink)
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...beats walking...
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...wasn't one of Detroits' "...Big-3..." working on a 2-stoke for cars awhile back?
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01-25-2012, 08:05 PM
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#103 (permalink)
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(:
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GM and Chrysler were; dunno about Ford. Orbital Company's 2-stroke tech was all the rage in the '90s before it failed to produce.
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01-25-2012, 09:03 PM
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#104 (permalink)
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Frank I think you might see the orbital design in outboards. Fitch or something like that.
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Mech
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01-25-2012, 09:07 PM
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#105 (permalink)
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There were all kinds of industries looking at/evaluating/licensing Orbital tech back then. Automotive looked at it too but as we can see it hasn't panned out.
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01-25-2012, 09:07 PM
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#106 (permalink)
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Apparently they discarded the orbital design and replaced with DI and oil injection. Interesting that the 2 stroke is lower emissions than the other 4 stroke outboards.
Evinrude Outboard Motors - Wikipedia, the free encyclopedia
regards
Mech |
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01-25-2012, 09:12 PM
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#107 (permalink)
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01-25-2012, 09:23 PM
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#108 (permalink)
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Corporate imperialist
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2 stroke car engines were used up till about 1990 in some parts of the world.
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01-25-2012, 09:23 PM
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#109 (permalink)
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01-25-2012, 11:40 PM
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#110 (permalink)
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^ I like that liquid spark plug. I want it. 
Last edited by Frank Lee; 01-25-2012 at 11:45 PM..
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