Author Topic: split cycle engines  (Read 2394 times)

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Offline City

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split cycle engines
« on: January 24, 2011, 06:58:26 pm »
Interresting concept despite it being demonstrated by some yanks.

http://www.physorg.com/news/2011-01-spl ... stion.html

Offline Robba

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Re: split cycle engines
« Reply #1 on: January 24, 2011, 09:44:02 pm »
Interesting concept, but I cant see it taking off.
Asides from the fact it wont be capable of high revolutions due to its ATDC firing position,
Storage tank and transfer pipe need to be heavy gauge material to withstand the pressure involved.
You have to consider that the pressure involved will be as high as the pressure created with mixture explosion as the port to the tank and transfer pipe is open when firing.

Also, this leaves you with a large tank full of highly compressed air, which is dangerous in a vehicle, as vibration fatigue and accident ruptures will leave you with a substantial expulsion of compressed air all at once.
I'm sure you don't need to be reminded of how dangerous tyres can be when over pressurised, and their pressure is substantially lower that the pressures involved in the project.

Also, a similar output energy can be accomplished with turbo/supercharger resulting in less substantial moving parts, and a more modular construction effecting faster simpler and cheaper repairs.

But, they are probably cleverer than i, so maybe they might overcome these issues....
Sick of this life,Not that you'd care. I'm not the only one with whom these feelings I share..
Nobody understands, quite why we're here, We're searchin' for answers that never appear..
But maybe if I looked real hard I'd I'd see you're tryin' too to understand this life that we're all going through..
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Offline City

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Re: split cycle engines
« Reply #2 on: January 25, 2011, 07:11:58 pm »
Valid arguments, I guess we'll see if it all works out. Personally, I like a loud bang when somthing crashes, so I consider it a win anyway.



Quote from: "Robsta"
But, they are probably cleverer than i, so maybe they might overcome these issues....

Plz remember it's yanks making it.

Offline Super

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Re: split cycle engines
« Reply #3 on: January 26, 2011, 12:57:53 am »
Quote from: "TheXXXcity"
Personally, I like a loud bang when somthing crashes, so I consider it a win anyway


check this out.... Big Bang ftw :D

http://en.wikipedia.org/wiki/Big-bang_firing_order
http://blogger.xs4all.nl/daisy/archive/ ... 55605.aspx


btw, the idea has been around since 1998 although durable crank shafts have always been a problem up untill... around now.

http://www.cyclenews.com/articles/road- ... for-2011-1
yes, it is a long headshot.

 

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